Cubic Communications ATC-100 TRANSCEIVER, MODEL ATC-100 User Manual MANUAL

Cubic Communications Inc TRANSCEIVER, MODEL ATC-100 MANUAL

MANUAL

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Document Description	MANUAL
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Document Type	User Manual
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Date Submitted	1999-05-11 00:00:00
Date Available	1999-09-28 00:00:00
Creation Date	1999-05-11 12:15:53
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PRELIMINARY
TECHNICAL MANUAL
OPERATION AND MAINTENANCE INSTRUCTIONS
OPERATIONAL LEVEL
VHF TRANSCEIVER
ATC-100
®
-~_ Cubic Communicaliom. Inc.
9535 Waples sum
San Diego. Cllifomll 92121-2953
Telephone: (619) 543-5500 Yele'ax: (819) 643—5303
-. - Mlnull Part No. 15003-10214
Issue 1.0 15 April 1999
PRELIMINARY
ATC-100 TECHNICAL MANUAL GGUBIC. COMMUNICATIONS
A mwoﬂn cmca-w-h- Mar-mm.-
RECORD OF CHANGES
CHANGE TITLE OF BRIEF DESCRIPTIONS ENTERED BY
PRELIMINARY
Issue 1.0
Q CUBIC. COMMUNIGATIONS ATC-100 TECHNICAL MANUAL
Anna-walla medm
3 FOREWORD
“a
SCOPE
This manual contains information to obtain best performance horn the ATC-IOO transceiverr The information includes: a
general description of the equipment, preparation for use and installation instructions, operating hsnnimgeneml theory
of operation, maintenance instruetions, preparation for reshipment, storage, and parts list
PROPRIETARY DATA
lnfonnation contained in this document is the property of Cubic Communicaions, Inc. This information may not be disclosed
m a third party, either wholly or in part, without the written consent of Cubic Communications, Inc.
M—
CORRECTION NOTICE
lnfonmtion contained in this document is believed to be correct as ofﬂte publication date. If a variation is noted between the
information in this manual and the equipment in your possession, contact the factory for clariﬁcation Future issues will be
updated it” necessary.
) RIGHTS RESERVED
Cubic Communications, Inc reserves the right to change the speciﬁcations, design details, and method of fabrication of the
equipment at any time without notice.
“R
issue 1.0 i
Arc-100 TECHNICAL MANUAL
9mm Lin
1 GENERAL DESCRIPTION . . . . . 1-1
1-1 INTRODUCTION ................. 1-1
1-2 EQUIPMENT DESCRIPTION 1-1
1-3 SPECIFICATIONS ............ 1-1
14 EQUIPMENT FURNISHED. 1-1
1-5 STORAGE DATA .. .. 1-1
145 TOOLS AND TEST EQUIPMENT ....... .1-1
1-7 SAFETY PRECAUTIONS .............. 1-1
2 PREPARATION FOR USE AND
INSTALLATION INSTRUCTIONS 2-1
2-1 INTRODUCTION .................... 2-1
2.2 UNPACKING AND INSPECTION . 2-1
2-3 INSTALLATION .. . 2-1
24 CONNECTIONS . .. 2-1
3 OPERATING INSTRUCTIONS . 3-1
3-1 REMOTE OPERATION USING
SERIAL BUS. ........................ 3-1
3-1.1 ATCSel Up ................. 3-1
34.2 Soﬁware Installation Up Grad:
Procedure .................. 3-2
3-13 Serial 815 Description ....... 3-2
3-1 .4 Serial Bus Message Format . . . 3-2
34.5 Serial Bu: Message Me: ..... 3-2
3-1.5.1 SerialBus Command Messagzs. 3-2
3-1.5.1.1 Serial 916 Radio Command
Messages .................. 342
3- l .5. l .2 Serial Eu; Interface Command
Menage: ................... 3-2
3 1. s. z SerIaIBus Slams Menage: 3-3
3- 1 5 2. Serial Bus Radio Slam:
Messages ................... 3-3
3-15.22 Serial Bus Inter/bu Status
Message: .................. 3-3
3-1 .6 Strial Eu: Menage Protocol . . . 3-4
3-1 .51 Serial Bu: Narmal Made ...... 3—4
3152 SerialBusAcknowledge Mode . 3-4
3-I.7 Line Driver Operatian 3'4
34.8 Broadcast Address . . . . 3-4
Ii
QCUBIC- COMMUNICATIONS
Anna-4mm manque-small"
3.1.9 Serial Bus Message Deﬁnin'un . . 3-5
gum: Em
3-2 POWER UP AND TESTING
CONSIDERATIONS ........... 3-13
3-3 EEPROM CLEARING ........ 3-13
4 GENERALTHEORYOF
OPERATION 4-1
4-2. I Racepmcle /RFI F iller .....
4~2.2 Line Filter ..............
4-23 Power Supply Module .....
4-2.4 RF Analog Module ....... . .
4-2.4.l RF Section .................
4-2.4.1.l Directional Coupler . .
4-2.4.1.2 Transmit/Receive Swilch .
4-24.13 Highpaxs Filter . . .
4-14. 1.4 Limiter.
4-14.15 Highpass F1 [gr FM Broader!
Nalcll ......................
1" RF Pruelzcror . . .
RFAGCAnemmmr . .
4-2,4.l.8 ”Ampliﬁer .......
4-2.4.l.9 2""RF Preslzclar . . . .
4-24, 1. 10 Fixed Allenuator ......
4-24. 1 .11 l” Mixer .............
4-2.4.|.12 1"LOCal Oscillator . . . .
4-242 I"1 [F (45 W!) .......
4-14.21 l' Mixer Terminator .....
4-14.12 l“ 45 MHz Ij’Ampli/ier . . .
4-14.23 lFAGCAttenualor . .
4-2.42.4 Fixed Atlznuamr
4-24.25 Crystal Filler . .
4-24.26 r 45 MHz IF Amplrﬁer
44.4127 T'Mlxer . . .
4—14.23 2M Local Oscillamr .
4-243 2“ [F (456 kHz)
4-24.11 2'” Mixer Terminanon
4-2.4.3.2 WIFAmpliﬁer . . .
4-2.4.l.6
4-2.4.1.7
Issue 1.0
OCUBICJSDMMUNIGATIDNS
A meldhoﬁ-‘k Ewmnlu-qdwmu
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Chaglgr mg
4—14.33 Ceramic F ilter ............... 4-3
4-14.14 Variable Gain 2‘"IF Ampli ier . . 4-3
4.2.4.4 Mode 2, 3 Fart AGC Delector . . . 4-3
4.2.4.“ Variable Gain 2-' IF Amplifier
(analog threshold set) ......... 4-3
4-24.42 Detector ................ . . 4-4
4.2.4.5 Modea, IAGC Filter ..... .. 4—4
4.2.4.6. AGC Shaping Network ......... 4-4
44.4.7 (Mode 0,1) Transmit Audio Inp’ui 4-4
44.4.8 (Mode 0, l) Receive Audio Driver 4-4
44.4.9 Receive Signal Sirenlth Indicator
(RSSI) Driver ..... 4-4
4-14.10 LED Driver . . 4-4
4.2.41 1 DSP Clock .. . . 4—4
4.2.4. 12 to MHz swam Reference . 4-5
4.2.4. I3 RF BITE Circuit ..... . 4-5
4-25 TX Synthesizer . . . .
4-2‘6 Digital Module . . . .
4-2.6.1 Control Section .....
44.6.2 DSP Section ........
4-2.7 PA Module .........
4-18 F ran! Panel ........
5 MAINTENANCE INSTRUCTIONS 5—1
Section I. PREVENTIVE
MAINTENANCE .......... 5—1
5-1 INTRODUCTION ................
5-2 CLEANING AND LUBRICATION . .
5»3 INSPECTION ...........
5-3.1 - External lnspeclian .
5-32 Internal Inspection .............
5-4 PERFORMANCE VERIFICATION ......
54.1 External Connections ........... 5-
5-4 .2 Transceiver Performance
Veriﬁcation ........
Section II. CORRECTIVE
MAINTENANCE ........ 5—3
545 TROUBLESHOOTING ................ 5—3
55.1 Troubleshootingi’hilasophy 56
Issue 1.0
Arc-100 TECHNICAL MANUAL
T - C
Qhagler
5-5.2 Built-In Texts:
5-5.2.I POST . . .
5-5.Z.2 BITE .
5-5.2.3 BIT. . 3-3
56.3 Troubleshooting Procedure I 54
5-53. I Initial Checks ........ 5-4
S-5i3.2 Fault Identiﬁcation . 5-4
56.3.3 Signal Tracing ........... 5—4
5-6 SUBASSEMBLY REMOVAL AND
REPLACEMENT ..................... 5—6
5-6.l RF Analog Board . . .
5—62 TX synthesizer Module . . I
5-6.3 Digital Board ............. 5—6
S—GA Power Amplyier Module
5-6.5 Power Supply . .
5~6.6 AC Line Filler Board .
5-6.7 Receptacle/RF] Filter . . . I
56.8 Power Switch/Circuit Breaker
5—69 Fan Anembbl. . . .
5-6.10 Air Inlet Filter Pad: .
S-SJI SupporIl-inndls: I i .
5—7 SOFTWARE UPLOADING .........
6 PREPARATIONFOR
RESHIPMENT 6~1
6-1 INTRODUCTION. ....................
6-2 DISASSEMBLY AND REMOVAL . .
6-3 PACKAGING . .
6-4 SHIPPING ....
7STORAGE....... ..... 7-1
7-1 INTRODUCTION ........... 7»1
7-2 STORAGE ENVIRONMENT .. M 7-1
7-3 PRESERVATION .................... 7—1
8 PARTSLIST............. ...... 8-1
84 INTRODUCTION ..................... 8-1
3-2 REPLACEABLE PARTS LISTING ...... 8-1
ATC-100 TECHNICAL MANUAL QCUBIGCDMMUNIGATIDNS
l —l
2— l
2-2a
2-2b
2-3
3-1
3 -2
3-3
4- 1
4-2
4-3
F0-1
F0-2
FO-3
F04
FO-S
iv
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, A. Bags
ATC-IOO From View .................................................... 1-0
ATC-IOO Rear View ..................................... . i . 2-2
AC Power Connector (17) Pin Descriptions ................. . . 2-3
DC Power Connector (17) Pin Descriptions . . . . 2-3
Digital Data Connector Signals ............................... 2-7
DIP Circuit Switch Settings ................................. 3-1
Serial Bus Message Format ........... . . 3-3
Serial Bus Character Format . . . . . 3-4
Control Section Block Diagram .............................. . , 4-6
Control Section Communication Block Diagram ............... . 4-8
DSP Section Block Diagram ................. . 4-10
ATC-lOO Outline and Mounting Drawing . .................... FP-l
ATC~l00 Block Diagram .................... ‘ .............. FP-3
ATC-IOO Interconnect Diagram ........... . . FP~5
ATC-IOO Replaceable Pans Locator Diagram ..................... PP»?
ATC-lOO Schematic Diagram, Analog Module (Sheets 1-9) ........... FP—9 thru FP—ZS
Issue 1.0
gcualc-CDMMUNICATIONB ATC-100 TECHNICAL MANUAL
Ann-cum- cause-mm rap/um.
Issue 1.0
LISJLQEIABLE§
Ems
ATC-lOO Speciﬁcations ........................................ 1-2
Items Furnished .......................................... 1-5
Recommended Tools and Test Equipment (Or Equivalent) . . . 1-5
Rear Panel Connections ........................................... 2-3
AUDIO Connector (J 1) Pin Descriptions .......................... 2-4
Optional AUDIO Connector (J 1) Pin Descriptions . . 2-4
Maintenance Connector (J2) Pin Descriptions ........... . 2—5
GPS Remote Control Bus Connector (13) Pin Descriptions ............. . 2—7
HDLC Connector (14) Pin Descriptions ........................... 2-8
Optional DC Power Connector Pin Descriptions i . 2—8
Serial Bus Interface Command Messages ....................... 3-5
Serial Bus Interface Status Messages . . . ................. 3-5
Radio Command and Status Messages . 3-6
RSSI Input Signal Voltages .........
Fault Detectors ..........
Fault Messages 4 . .
Replaceable Parts.
ATc-100 TECHNICAL MANUAL OGUBIGCOMMUNlGATIDNB
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ATC-wl! TECHNICAL MANUAL
CHAPTER 1
GENERAL DESCRIPTION
1-1 INTRODUCTION.
This chapter contains an equipment description, equipment
supplied and required. storage data, tools and test
equipment, and a summary of safety precautions.
1-2 EQUIPMENT DESCRIPTION.
The ATC-lOO Transceiver (ﬁgure 1-1) is a
superheterodyne design using digital signal processing
(DSP) in the ﬁnal D7 and direct 1&Q digital modulation in
transmit The DSP gives superior accuracy and ﬂexibility
for both modulation and demodulation. The ATC 100 has
a frequency range from I18 MHzto136375 ml: with 25
kHz channel spacing. The Transceiver is fully
interoperable with the present AM voice mode used in the
ATC services. The transceiver can also be upgraded to
Modes 1 - 4.
The transceiver contains circuit card assemblies and
modules mounted in a 19 by 37: by 16-inch rack-mount
chassis.
The transceiver is controlled through a remote interface by
any suitable bus controller using either an 115-232, or
RS—485 serial interface bus, using speciﬁc command
messages to request status or change conditions of the
transceiver, There are four LED indicators on the front
panel which provide transmit, breaking squelch, fault, and
power status
The audio output and input is available on the 600—ohm
balanced line, through the rear Audio 15 pin sub D
connector.
Either an internal or external reference frequency may be
used. The external reference ﬁ'equency is automatically
sensed and used when connected to the rear panel.
1-3 SPECIFICATIONS.
Refer to table 1-1 for speciﬁcations of the equipment.
1-4 EQUIPMENT FURNISHED.
Table 1-2 lists the items fumished, items required but not
furnished, and optional itemsl
Issue 1.0
1-5 STORAGE DATA. ' ‘”
Refer to Chapter 7 for storage data.
1-6 TOOLS AND TEST EQUIPMENT.
Table 1-3 lists recommended tools and test equipment for
operational level maintenance. There are no special tools
or test equipment required.
1-7 SAFETY PRECAUTIONS.
Safety precautions are presented in this manual preceded
by the word WARNING or CAUTION just prior to the
point where the hazard is likely to be encountered.
Warnings and cautions are deﬁned as follows:
Refers to a procedure or pracn'oe that, if not
correctly followed, could result in injury,
death, or long term health hazard.
Refers to a procedure or practice than if not
correctly followed, could result in equipment
damage or destruction.
PRELIMINARY 1.1
NFC-100 TECHNICAL MANUAL , a CUBIQGQMMUNIQATIQNS
Am~-.mmmum
Spiﬂcaﬂons.
h‘ , 7, ‘ ‘ ,,
FREQUENCY
usm-msvsmu
Can tune to any ofthe 25 kHz channels within 100 ms
ChannelSpacix-g _
Frequency Stability 2 ppm (-20°C to 50°C) aﬁer a 4 minune warmup
External Reference Frequency I0 MHz (Automatically sthches ta external reference when external reference
signal is applied)
Mode 0:
300 Hz to 14 kHz
(Datawith external modem)
Mode l, 2, 3, it 4 upmdable
‘m_
m Will not suffer permanent damage when subject to a signal nf+21 dBm in-band. ‘
or +27 dBm out-cf-band
Table 1-1 ATC-
Speciﬁcation
DETECTION MODES
m 4 Selectable band- . s ﬁlters with an additional FM Re'ect ﬁlter.
RECEIVER FUNCTION
(Mode 0) ‘
Channel Spacing
_ Remote Rszsmss
Type of Modulation AM (A3E) for voice
Sensitivity:
For (S+N)/N = 10 dB, weighted
to Psuphometric ﬁlter, 1 kHz,
Mod = 30%
-91 dBm typical
DSP lF bandwidth/selectivity
with 25 kHz channel spacing;
6 also dB >-
, AF Outputs:
Impedance
zlSkl—lz/s Sold-ll
600 Ohms
Frequency Range:
25 kHz spacing — 300 to 3400 Hz
Frequency response pass band + I dBl-2 dB referred to 1 kHz
Freuenc resonse sto- »lO dB at 100 Hz /6000 Hz referred to 1 kHz
1-2 ' ' ' Issue 1.0
OCUEIGCOMMUNIC
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AF Control:
RF AGC: for input voltages
-107 dBm to -7 dBm, 30% mod,
1 kHz
. Harmonic distortion:
For 90% AM, 1 kHz, -87 dBm to
-7 dBm EMF
Ultimate SIN ratio, 60% AM,
1 kHz (Weighted to
Psophometrie ﬁlter)
TRANSMIT FUNCTION
(MODE 0)
Channel Spacing
Control
TX Channel Characteristics
Load VSWR Capacity
Transmitter Distonion
Spurious Emissions
Wide Band Noise
Modulation
RF Carrier Power” '
P, and P,“
Operation
Backdoor lnrennodularion
Frequency Response
Issue 1.0
Speciﬁcation
ATIONS ATC-100 TECHNICAL MANUAL
Table 1-1 ATC'100 Speciﬁcations-Cont.
+ I dill-3 dB referred to 47 dBm input
Remohe RS—232/485
Frequency oﬂ'set, -ower (hi - ow)
Openings into any nossive load
Distortion at 90% AM does not exceed 10% over the frequency range 600 Hz to
6 kHz
When the transmitter is modulated and terminated in a resistive load equal to the
nominal output impedance, the power of any spurious emission at the output of
the transmitter does not exceed:
80 dB below carrier for 25 kHz 500 kHz (non-harmonic)
80 dB below carrier, hermonically related
Noise power measured on an unmodulaled Carrier shall be less than -135 dBde
at f= 1 500 kHz ﬁ'om center ﬁ'equency and decreases at the rate of not less than
5 dB per octave to at least -l50 dBcle
AM (A35) (up to 90°A)
Unmodulated carrier 25W
Continuous with single fan (auto temperature sense)
>15 dB below interfering signal at -20 dBc
@25 kHz 300m 340014: 5 4 an (+1, -3 dB/ret’l kHz)
5 -19dBanoor-iz.- s -20dBat5000Hz
1-3
ATc-100 TECHNICAL MANUAL GGUEIG-GOMMUNIGATIQNB
Ammunmemhmum
Harmonic Distortion
(@ 90min)
“ Audio Level Control (ALC) Automatic ALC holds level modulation within 1 dB over 30 dB input range.
Ultimate 51411 2 45 dB (mod - 90% at f, = I kHz)
(weighed to Psophomen-ic ﬁlter)
Built-in 1 kHz tone for test remotely controllable
90 -260 VAC, 47 -63 Hz, 225 w
19“ (48.26 cm) wide, 3.5" (8.89 cm) high, 16“ (40.64 cm) deep
__
BITE
Internal diagnostics provide 95% of fault detection. Fault dztectors continuously
monitor voltage levels and phase lock. Serial BUS messages regarding BITE
control and status are available by using the Radio Command and Status
Message listed in Chapter 3.
Table 1-1 470-100 S aciﬂcaﬂans—Cont.
Speciﬁeatlon
Remote BITE Text provide: Forward Power, Reﬂected Power, VSWR,
Modulation Pﬂcenlage d‘: Sensitivity Measurements.
Reliability 50,000 hours MTBF
OPTIONS
14
Issue 1.0
QCUBIG- cDMMUNlGA‘l’IONB ATC-100 TECHNICAL MANUAL
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w Table 1-2 Items Fumlahod.
mn- sumo ..
3 zoos-looov-xx ATC— loo VHF Transceiver _
‘ 696-012 AC uwercord
; 3003-1021-1 Technical manual
0 l ‘
m Bracket Slide ad' mir) l 41 Not furnished
222-023 Slide ("Non-tilt pair) 41 N01 furnished
‘xx indicates model number and factory installed options. Refer to identiﬁcation plate on equipment,
Tble 1-3 Recommended Tools and Test Equipment OrE- trivalent).
Any
Any
Driver, nug 1/4 inch Any
Any
Any
Engangisengage OSMT Cable Tool Any
was swam
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Issue 1.0 1-SI(1-S blank)
OCUBIC.COMMUNIGATIQNB
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ATC-‘lDO TECHNICAL MANUAL
CHAPTER 2
PREPARATION FOR USE AND INSTALLATION INSTRUCTIONS
2-1 INTRODUCTION.
This chapter contains unpacking, inspection, installation,
connections, and initial aligrunent procedures
2-2 UNPACKING AND INSPECTION.
To unpack and inspecr the transceiver for damage, perform
the following procedures:
Do not drop the equipment when lining or
carrying. Personnel injury or equipment
damage may occur.
1. Inspect the shipping carton for damage before
unpacking the transceiver.
NOTE
lfdie carton is damaged, open the carton in
the presence of a shipping carrier agent if
possible. If damage is found aﬂer the
transceiver is unpacked, retain the carton
and packing materials for inspection.
24 Open the canon and remove the foam packing
material on top of the transceiver.
3. Lin the transceiver ﬁ'om the carton.
NOTE
Save canon for possible reshiprrnent.
4A Inspect the transceiver for external damage
including dents and scratches.
Do not attempt to operaoe the transceiver if
major damage is found.
2-3 INSTALLATION. ...l
The transceiver is designed for 19-inch Mk mount
operation in a relatively dust free environment with an
ambient temperature range between -20 and +50’C.
Optional slides my be provided forthe Afc-wo. Follow
the instructions provided with the slides for installation..
No special tools or additional materials are required for
installation.
NOTE
See ﬁgure FO—l for clearance re-
quirements and mounting details.
24 CONNECTIONS.
Refer to table 2-1 for a description of the rear panel
connections, (see ﬁgure 2-1.)
PRELEMINARY
Issue 1.0
2-1
Z"!
01, an!“
Jl AUDIH_12 MNNI‘ENANCI
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Q1 ANT 1&5? GND 6) w PWR %)O 639C?
cps REMOTE s» 52 J-4 HDLC O‘ 995) 3000
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Figure 2-1 ATC-100 Roar Wow.
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Table 2-1 Roar Panel Connections.
lS-pin ‘D'
subminianu: male
(324—009)
lS-pin "D' miniature
[Emile (3244770)
GPS REMOTE (13) ZS-pin Emile D tub-
miniume connecmrn
zs-pin nule D
suhminianne connecmr.
HDLC (14) Min female D sub-
minilhllv comm.
zs-yin mu: D
snbminixmre wnnecmr.
ENC rm.
(Customﬂ Option)
ANTENNA (is) BNC Junk
(344-246)
NYC-100 TECHNICAL MANUAL
Used in canine! radio in mm wmm. mm
equipment. Table 2-1 "sis the pin descriptions. For nniu
um me the spun-m Audio Dmghler Board. the Audit:
liner-nee is warm coupled with center an available.
The pin damplinm for an optional Audio Inlerﬁu m
describe in Table 1-2;
Fur mar-1 Its-7.320 or 115-485 mmule nominal bus
oper‘ﬂon. Table 2-4 hm in: pin amnpﬁenr. Rd“ in
ennpnrr 3 in set the mini bus wnﬁlnrniim.
Tlhle 2-5 (in; the pin descriptions.
Cuxial lnluml wuneclian. lmpedlnw is waximuely
50 ohm with IVSWR [es than 3 lo I nth: melvermncd
ﬁvqumy.
RE me luck ENC Plug Manner frequency in Used m emu 10 MHz menial
(344-246) (Customer Opuon) hqnmcy standard so anrnr a 43m ﬂdB
F (16)
(343-002)
1 DC POWER (n)
(0950080
AMP. INC
20606l-l mama-4 206060-1widl663604
mu (my I) &
2063514 hmhell
owns» —— rowersm “cream-rm
nu: Swi|cI|es (SI )
N'EMAS-ISP 90m260VAC 47m53usmy=mzsowmm.
(696-012. PowerCord) FingMbstwsm 411mm Hons.
zov w 32V nepxivz pole In mind. Table 2-6 Ikvs rig pln
minions Figure 2 2b shows the pin oonﬁgmrion
i‘
Um! m m are bus address, RAM to ﬁgurc 3-1 for yrvper
swimi settings.
DIP Switdus (52)
(000-000) dlcm CCl pan number Kapplluble
GROUND
(GREEN)
J7 PUNER
HOT
(BLACK)
NEUTRAL
(WHITE)
Figuru 2-28 AC Power Connector
(J7) Pln Descriptions. (Standard)
Issue 1.0
Used in m are Bml Nor-inn], Bus sum a Type,
BI’lS/l’arilylswp and Band gnu. Refzr w ﬁgun 3-1 for
proper swiull senin n.
Figure 2-21: DC Power Connector
(J7) Pln Descﬂptlons. (Option)
2—3
ATC-ﬂlll TECHNICAL MANUAL OGUBIG GQMMUNICATIDNB
Ann-um. mama-mum
, 7 ble 2-2 AUDIO Comrade J1 Fin Discritlons.
———‘
_—_
___
_—_
_—_‘
2-4
Issue 1.0
e,’
> i synonymous with "Send Data"for its—435. All circuits for the [ZS—485 interface consist of a diU'erentialpalr of signal .
QCUBIc-CQMMUNICATIONS ATC-100 TECHNICAL MANUAL
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NOTE: The pinaut for the R’s-232 interface [allows the recommendations aft/re 5141 standard Since the EIA
] standard for RS-IJS does not call out recommended pin assignments, these circuits are assigned to unused pins on the
l same connector as the RS-232 circuits.
‘ Only one set ofsignalv (RS-232 or M485) is active at any given time. The name "Transmitted Data" for RS-232 is
lines labeled A and B. Both line: must be connected to the circuit at the other end, A to A and B to B.
A receiver conﬁgured with the serial interface will operate as Data Terminal Equipment (DTE). 7th means that the
circuits named Transmitted Data and Request to Send are ouwutsfrom the receiver and the circuits named Received
Data and Clear to Send are inputs to the receiver. The electrical characteristics of the interface will conform to either
EIA standard its-2324,” or EIA standard M4859! with the following acepllons.
When so conﬁgured from the rear panel DIP switches, the line drivers associated with the Transmitted Data and
Requat to Send circuits for the unit will he in a high Impedance state except when that unit has been commanded by
1 the system controller to transmit When done transmitting, the line drivers will return to the high Impedance state. ﬁt A
I feature, referred to a: bus sharing or party line operation, allows multiple receivers to share a single circuit for the
; Transmitted Data signal to the system controller, In system where only one receiver Lt connected to the enema!
i controlling device, this feature may be disabled from the receiver rear panel switches.
The Request to Send (RTS) and Clear to Send (CTN) handshake circuits are generally not used when the line drivers
are conﬁgured for bus sharing operation. When the line drivers are not conﬁgured for bus sharing, the operation of
the C12? and RTS lines is as follows: When a receiver is ready to accept remote control commands it will set the RTS
circuit true. When it has received a mcsage and is processing the commands, it will set the RTS circuit fabe until it is
ready to receive another command The receiver will only transmit messages to an external device when its 015 circa
is held true by the mental device The mental device may stop the transmitted output a/ the receiver (to prevent
buﬂer overﬂow for example) by taking the CTS circuit/eke. Wren the CTA' circuit ls again taken true, the receiver
will begin transmitting where it left of]: NOTE: Men bus sharing is enabled/“ram the receiver rear panel switches, Ilt '
state of the CTS circuit is ignored ‘
(CONTINUED)
Issue 1.0 2.5
ATC-1l10 TECHNICAL MANUAL GCUBIGCOMMUNICATIONB
Awaken-Minuet“.
NOTE (CONTINUED)
The number of A TC—l00 lramceiver; tltat may be connected to a single controller I! dependent on the serial bus type
\ and the line driver ckoraclerirtlc: oftlle controller, but In general it at least I D n'ansreeeivenfor RS-232 operation
and at least 30 transceivers for RS—lbs opera/an, 77m Input reslrtance of the its-232 llrte is approxlmately 5000 Ohm. ‘
111: A TC-IW transceiver contains no termination rests-tors for the was but. ‘
If connected direaly to a computer inted‘ace alJo conﬁgured as DTE, a reversal of lransntll and receive data (TXD
andRXD arm and RD) and request to send and clear to send (R73 and CB arm and CS) [inn int—l}! be necessary.
The Requnt to Send and Clear to Send lines may be jumpened togaher an the matblg connedor if required by the
\ ayxmn. "use reversals or jumper: are normally not required lfunla are connected through a modan. [fan
‘ ATE-100 tranxreeelver Is to be connected to another DTE device a: is controller, the circuit must be mappedjor
proper operation asfollows:
«1mm Mum
Transmitted Data Received Data
‘ Received Data Tramltted Date
Clear to Send
3 Clear to Send Request to Send
Signal Ground Signal Ground
2-5 Issue 1.0
acuﬂlcocaMMuNchTloNB ATC-100TECHNICAL MANUAL
A mammmwum
Table 2-4 GPS Remote 60an Bus Connector (Ja) Pin Dcscrlptlo.
_ Remarks
RS-485 Send Data Diffmntial Output-i- ‘
‘__ mssxeeeivenmmmmnmpm ‘
am am
RS—485 Send Duh Differential 0mm“ -
.- a
I I
115-485 Receive Dm Differential Input -
NC
-__ ExumumAccneponm
20
21 mmmmc- mug
GPS I Pulse Per Sec. -
GPS 1 Pulse Per Sec. +
i?
5?
Issue 1.0 2.7
ATC-100 TECHNICAL MANUAL Q cuarmcommuNIcA-rrnus
nan-lummwmum
Table 2-5 HDLC Connected-14) Pln Descriptions.
HDLC TXD- 115-485 Transmit Data Differential Ou nut
HDLC RXD- 115—485 Receive: Dam DiffeEénriai Ou u z -
HDLC crs- its—435 '
HDLC RTS- RS-485 Clear To Send Differential Ou nut-
7 _ am 0mm
5'
5’
n.
E‘
HDLC_DCD- 115-485 Digital Carrier Detected
Diﬁerential 0 -ut-
HDLC RCLK- RS-485 Rmive Dam
Diﬁ‘u’emial Clock In -ut-
10 HDLC_DCD+ 115-485 Digital Carrier Detected
Diﬂ'crential Ou --ut+
l l HDLC_TLCK- 115—485 Transmit Data
Differential Clock On ut.-
HDDC RTS+ RS-485 Clear To Send Differential Ou -ut +
ms mm mm mm oi mi
15 & I7 HDLC__RCLK+ RS-485 Receive Data
Differential Clock In ut +
— mas mm mm mm. on
_ mas - mi re sendnmmmn mm
NC
NC
NC
a?
20-23
24 115485 Transmit Data
Differential Clock Ou nut +
HDLC TCLK+
u.
r ,7 ,, , 7
1,2 + DC Power In _ - 20 - 32 VDC
,‘ —,,
2~8 Issue 1.0
Chassis Ground
“1
GGUBIQCDMMUNICATIONB Arc-mo TECHNICAL MANUAL
Amimmkmmwu-«mm
CHAPTER 3
OPERATING INSTRUCTIONS
The ATC- loo transceiver is remotely controlled via a serial 3.1 REMOTE OPERATION U‘SlliG SERIAL
interface on the Maintenance Port. The serial interface BUS.
standards available for the ATC-IOO transceiver are the
unbalanced (RS-232) and balanced (RS—485) line inter~ The transceiver is operated under ntrol using a
fmS‘ serial bus and a suitable controller. Ensure that the
Parameters assocrated' with the remote eontml intm'fnce can mung-ions parameters are set in accordance With the
sy requirements. The bus address, bus type (RS-232 or
be checked and changed from the rear panel of the RS-485), baud m, number of data bits, type of parity
transceiver. The bus “Sim-h PM WP? (RS-232 or used, and number nfstop his must match the requirements
115-455), baud rate, bus sharing option, and line pamneters - ofdte system controller.
may be set. (Line parameters include number of data bits,
numberofstopbits nndparityoptions). 34.1 5732199 Sit U
Each W135 ofinterface is described below. Before operating the equipment, set the DIP switches, on
the rear panel, for correct remote uperation (refer to ﬁgure
3-1). The Mary default settings previde a starting point;
where all DIP switches are OFF acept for S»2(5) and
S-2(7), which are ON m establish the baud rate at 38,400.
sin-n)
ON BU ADDRESS
DDDDDDDD rumnrtxwumtmms
remummxmmuss
|2!45l1! «JanusmnnBs-u:
strunmlymnnllml,
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D D D D D D D D
RRRRRRRR
16 I l l O 21
2 4 2 e
84mm.
w M munmre
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DDDDDDDD in“ "m' m w- 5- HM“ ”‘
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OSUEAAAA not-zoo
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5 s u 2 4 m
N N N s ‘ 2 ‘ 3n- nus an- 7 mm ms-zvru tMXT‘t-l star in mm
OI? - "212 an - I lath Ins-m !Allﬂ-l nor n: "00
° R A ' tau - now:
it s a
u z s 7
A 3 ’
L 2
Figure 3-1 DIP Clmuns - switch Settings.
PEEMM [MARY
Issue 1.0 34
ATC-ﬂm TECHNICAL MANUAL
3-12 fiw I P
If it becomes necessary, the internal software may be
upgraded by connecting the Maintenance Port to an IBM
compatible PC running DOS or a DOS window under
Windows“. Use the Cubic-furnished program RCOMM,
and connect the computer serial port to the Maintenance
Port with a suitable cable. in most cases a 'Null Modem"
cable or adapter is required. In some cases, a gender
adapter is also required.
1. Verify that the DIP switches reﬂect the desired setu'ngs.
In most cases the Factory Default settings will sufﬁce,
refer to paragraph 3-1. 1.
2. Enter RCOW and verify the settings. Select the
Serial interface: COM port 1 or 2 (Alt-I, l or2). Then
examine the serial line parameters at the bottom of the
screen or window. If using the recommended Factory
Default settings on the transceiver, use the following
RCOMJW settings:
Baud Rate = 38,400
Data Bits = 8
No Parity
Address = 0
FIG (ﬂow control) = OFF
Terminator =
g. Preamble - lSTX, 3ADR.
fur-opera
if any parameters need to be changed, access the
Conﬁguration/Serial menu (Alt-C, S) and the parameter
to he changed.
or
. Verify communications with the transceiver by typing
ID? and Return. You should see an ASCll message
identifying the unit as an ATE-100 with a certain
control soﬂ'ware version and date.
4. Turn power to the ATC-lOO transceiver OFF‘
5. Set DIP switch 52—1 to ON (Boot Program)
6. Set the address on DIP switch 51 to 3 if uploading the
Control program or 1 if uploading the DSP program.
a. Address 3: 51-7 & 51-8 ON, others OFF
b. Address 1: 51-8, all others (on SI) OFF.
7. Still in RCOMM, select the File Upload function
(Alt-F, U) and enter the Path and Fileoame in the space
provided. Conclude with Enter.
8. Turn the nans'Eefver power ON, Upload should
proceed with progress indications in the RCOMM
screen. Press Enter aﬁer the display indicates the ﬁle
has been n'ansi'erred.
at 5. '
3-2
®CUEICJ=OMMUN|=ATIONS
am
A ma-umm M Warm-oni-
9. Repeat steps 4 to 8 for each program to be uploaded.
I0. Turn off power to the transceiver.
ll.Reset the address switch (SI) ro"the operational
address.
12. Set DIP switch 52-1 to OFF (Normal).
13. Power on the unit. Set RCOMM to the lransceiver's
operational address. Verify the uploads using the D)?
query for control soﬁware or IDD? for the DSP
soﬁwm,
343 w The serial interface
includes both unbalanced (RS-232) and balanced (RS-485)
line interfaces. The interface type must he set by the
operator prior to power up via the DI? switches.
34.4 manner. All transmissions,
in either direction, conform to the message format shown
in ﬁgure 3-2. All transmitted and received characters will
be encoded and interpreted as conforming to the ASCII
character code.
Each character in the message is passed in an asynchronous
serial format as shown in figure 3-3. The number of data
hits, number of stop bits, parity options and baud rate are
all selectable ﬂoor the rear panel of the. These selections
are stored in non-volatile memory. All characters are in
ASCII code.
34.5 ﬁeﬂ'al Bus Mmgg Tm All messages are
divided into two major categories: command messages and
status messages. Each category is discussed in the”
following paragraphs:
345.1 mm Command
message: are sent ﬁ-om the controller to the transceiver and
are subdivided into two classes as follows:
34.511 Mm Radio
command messages contain commands that are passed to
the transceiver. They may command the transceiver to
change operational parameters or to report back operational
status. ’
34-512 WWW
Interface command messages contain commands that are
acted upon by the communications interface in the
transceiver. These commands cause the interface to
change modes or report status.
Issue 1.0
®cumlc.c0MMuN|cA1-|uns
gum-ammmmumm-
34.5.2 MW Status messages are
sent from the wansceiver to the controller and are
subdivided into two classes as follows:
34.521 mm Radio status
messages conmin information ahout the operational stems
of the transceiver. These messages are sent as a reply to
ATS-100 TECHNICAL MANUAL
3-15-22 Mm Interface
status messages contain error status information caused by
a previous command message or other source. When the
transceiver is in the acknowledge mode, it will respond to
all command messages with an interface status message
unless the command explicitly requested a status message.
radio command messages that request a status report.
NOTES:
Issue 1.0
ISTXIl 2 3IF 1 1 8 O 7 5 SP M OICRI
l l 1 / 1 I
|-—-I-Adr—|—-Data Field—/ —————— |——x
/ / \
Start ASCII Carriage
of Text space Character Return
The ﬁrst character of a transmiﬂion will always be STX (start of next. ASCII code 02).
The second, third, and ﬁourth characters will contain the address in decimal, with me most signiﬁcant digit ﬁrst, of
the transceiver sending the transmission or to which it is being sent by the controller. The address code for any
transceiver may be any number ﬁ'om 000 no 254 prow'ded that it is not used by any other unit connected to the bus.
Address 255 is reserved for “broadcasting" to all transceivers on the bus (refer to paragraph 3.1.8). The controller
has no address. All three digit must be transmitted. Addresses less than 100 must be ﬁlled with “0" digits on the leﬁ.
The address is set from the ﬂoat panel with the soﬁ key sequence CONFIG- REMOTE- ADDRS.
The ﬁfth character of the transmission is the beginning afﬁne data ﬁeld. his ﬁeld may contain as few as one or as
many as 250 diameters. The data ﬁeld may contain one or more messages. If more than one message is contained
in the data ﬁeld, each message must be separated ﬁ'om the next by one or more blank (space) characters.
Any number of message: may be included in the data ﬁeld provided that the maidmum number of characters is not
exceeded. There are, however, certain request for status commands that may not be mixed with any other request
for status commands in the same transmission. These messages will he noted as such in table 3-3.
The ﬁnal character of the transmission will be a CR (carriage return). This character will follow the last character
of the data ﬁeld.
This transmission above ﬁom the controller is addressed to the transceiver with address 123 and contains two
messages: "F118075" and "M0".
When sending messages to the nansceiver that require numeric values as arguments, it is not necessary to include
leading zeros. For example, to send a message to change the manual gain reduction to 66 dB, the command message
"666" may be given in place of "0066". When a request for a status message is made, the reply will always include
any leading zero: so that the value may be extracted by counting characteis in the message.
Figure 3-2 Serial Bus Message Format.
3-3
ATC-100 TECHNICAL MANUAL
QCUElC-GQMMUNICATIUNB
Aumrdlhmmmﬂml
lSTIDl D2 D3 D4 D5 D6 D7 (DB)I(P)IS (S)|
I l
l-—l -------- Data Bits -----
Start
Bit:
Parity Stop
Bit Bit (5)
NOTES: lnfonnation is passed in full duplex as characters in an asynchronous serial format. Each character consists of a start
bit 7 or 3 data bits with the least signiﬁcant bit sent ﬁrst an optional parity hit which may provide'odd or even parity,
and one or two stop bits. The serial transmission use may be set to each ofthe following standard rates: 75, l 10, 150,
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, and [30200 bits per second. Number of data bits. number ofstop
bits, parity options and baud rate are all selectable from the front panel of the transceiver through the keypad from the
CON'FlG —- REMOTE menu. The selected values take effect immediately when changed and are stored in non-volatile
memory.
Flgum 3-3 Serial Bus Character Format.
3-15 mm The interface
system operates in one of two modes: normal or
acknowledge. These modes are selected by sending the
transceiver the appropriate interface command message.
Both modes are discussed in the following paragraphs:
3—l.6.l mm In Normal Mode the
transceiver unit will process mssages that are addressed to
it but no response will be sent back unless the Command
Message was a request for Status Message (Radio or Inter-
face). The controller can verify that its Command
Message(s) Was received without error by sending a
Command Message requesting a reply Status Message
either immediately aﬁer sending the original Command
Message. or aﬁer having sent Command Messages to other
transceiver units. This mode allows the fastest throughput
of commands to a large group of transceivers because the
controller does not have no wait for each transceiver unit to
process the message(s) before moving on to the next
transceiver unit
3-152 mm InAcknowIedge
Mode a transceiver unit will always respond to Command
Massages with a Status Message aﬁcr it has processed the
Command Message. If the Command Message was for a
reply Radio Status Message, and no errors or faults have
been detected, the reply will be the requested Status
Message. In all other cases, the transceiver unit will
respond with an Interface Status Message. This mode
reduces maximum throughput because the controller must
wait for the reply Slams Message before issuing another
command, but it simpliﬁes the controller‘s job when it
wants to verify the reception of its Command Messages
and maximum througiput is not needed.
3-4
3-17 “Emma. When BIB Sharing is
enabled through the transceivers front panel, that
transceivers Transmitted Data and Request to Send line
drivers are maintained in a high impedance state at all
tints except when it is required for that unit to transmit. In
Normal Mode operation, this only occurs when the unit hm
received a Command Message that requests a reply Status
Message. In Acknowledge Mode, all commands will
caused the addressed unit to transmit.
The line drivers will be turned on and placed into the mark
state for at least one full character time before the ﬁrst
character (the STX) is transmitted.
3-1.8 mm All transceivers will
respond to address 255 the same as its actual conﬁgured
address. This is referred to as the broadcast address. If a
single transmission is sent to this address, each transceiver
on the bus will respond to .the commands in the
transmission as if they were sent to it individually. This
feature may be used to cause a group ofa'ansceivers to act.
in unison, or to reduce the rime it takes to initialize a group
of transceivers to a set of common parameters.
The broadcast address must not he used to request status
from a group of transceivers or when the transceivers are
operating in the acknowledge mode, since this would cause
bus contention as all transceivers would reply at the same
time. With only one transceiver on the bus it is possible for
the controller to determine the unit's address by sending a
status request to the broadcast address and examining the
address ﬁeld in the reply, since the reply message contains
the unit’s conﬁgured address. This can be used during
system integration as a troubleshooting aid.
Issue 1.0
ﬁcualacaMMuchr-IQNB
Anemrdmmkcw’lﬂﬂln—g—u
3-149 Woman All messages
are ASCII encoded and inserted into the data ﬁeld of
transmissions as deﬁned in paragraph 3-81. Messages
from the controller may use lower or upper case for all
alphabetic characters, The transceiver always uses upper
case
Each message that can be sent using the bus controller is
listed in the following tables:
a Table 3—1. Serial Bus Interface Command
Messages.
0 Table 3-2, Serial Bus Interface Status Messages
0 Table 3-3. Radio Command and Status
Messages
Dem-man
mom Set NORMAL interface mode
Se! ACKNOWLEDGE interface mode
Request Interfacitams Message
Deﬁnition
No errors, NORMAL Mode
No errors, ACKNOWLEDGE Mode
Testin error - EEPROM comrpted
Testing error - power on self test error
Interface error - buffer overﬂow
Interface error - illegal value
Interface error - unrecognized message
7 Ra‘derror - fault has been detected
Issue 1.0
Table 3- Snrial Bus Interface Comdman Mus.
Table 3-2 Senal Bus Inrerfao Status Messages. 7
ATC-100 TECHNICAL MANUAL
Most Radio Status Messages use the same format as the
Radio Command Message for that parameter. For
example, the reply to the Radio Command Message “F?"
(requat current ﬁ'equency setting) is "F123456" in the
same format as the Radio Command Message to change
the Frequency.
All Radio Status Messages are made up of ﬁxed length
strings so that values may be parsed__by counting the
characters cfthe Status Menage. Messages {which return a
numeric value will be padded with zeros on the leﬁ to give
the same number of characters as the same message with
the maximum value. When more than one parameter is
being reported. the individual parameters are separated by
a blank (space) character.
63.
3-5
arc-100 TECHNICAL MANUAL QCUBIc-EQMMUNICATIONB
amuulm Cunbmlamclmnmha
Table 3-3 Radio Command and status Messages.
Dcecriptlon
Enable or disable Automatic Gain Connol (AGC) operation. Replace th-
n with 1 to enable AGC operation or 0 to disable AGC operation. When
AGC operation is disabled, the current Manual Gain setting is in effect.
(Default is on.)
Request current status ofAGC (on or oft). The n character is replaced
with a I if AGC is enabled, or a 0 ifAGC is disabled.
Perform the built-in-test-equipment (BITE) test sequence. This
command may take several seconds to complete. To see the mults of
the BITE test, send the B]? command
Request the results of the last executed BITE test sequence. Each of the
n characters represents one of the tests performed when the BITE
sequence is performed and is replaced with a I to indicate that the test
failed or a 0 to indicate that the test passed. Starting with the ﬁrst (leﬁ
most) 11 character, the deﬁnition of each test bit is as follows:
Receive l20 MHZ, Receive 125 MHZ. Receive 130 MHz, Receive 135
MHz
Turns on BITE comb generator. The RSSI output must be disabled
before giving this command aﬁernssm . (Refer to ass: commands.)
The BITE generator will be turned off with any of several other
commands, including the change frequency command annnnn.
Runs and immediately returns the results of the Remote BITE test
sequence. FF is the forward power in units of 0.1 watt, PR is the
reﬂected power in units ofOrl wan, VSWR is the voltage standing wav—
tatio in units of0.l (cg. VSWROIS represents a VSWR of 13:1). AM '\
the modulation percentage in whole percent, and MAR is the noise
margin expressed as the difference in whole dB ﬁ'om the predicted
value. This command takes approximately 1 second to complete.
Request report of all parameters that are now different from those
reported in the last Radio Status Message for each parameter.
Clear current faults. All bits of the FC? reply are cleared to 0. ’
Clear accumulated faultsr All hits of the FA? reply are cleared to 0.
Turns on or off the DAC (digital-to-analog converter) test. This test
produces a 1 kHz audio tone from the receiver audio port. Replace a
with l to enable the DAC test. or 0 to disable the DAC test. While the
DAC test is enabled, the cransceiver’s normal operation is suspended
and the response to other commands (except DAG?) is unpredictable.
3'6 Issue 1.0
OGUBIC-CDMMUNICATICINS ATC-100 TECHNICAL MANUAL
A mumm- eun- c-v-u-n Mar-um.-
Table 3-3 Rad/o Command and Status Messages.
n— Requests the condition of the DAC test. 0 indicates the DAC test is on
and 0 indicates the DAC test is off.
l Change the transceiver operating frequency. Digits I through 6 represen-
1 the six digits of the transceiver operating frequency with 1 representing
1 the 100 MHz digit and 6 representing the 1 kHz digit The requested
‘ frequency must be a multiple of 25 kHz. Range: 1 [8000 kHz to 136975
] kHz (Default is 121500 kHz.)
‘ Request the current frequency The reply format is the same as for the
‘ change frequency command above.
E‘Annnnnnnnnnrmnnnn Request a report of all accumulated faults. Once a fault condition has
. occurred, it will be reported as 1 even though the fault condition may it-
longer exist. The meaning of the 16 n characters is the same as for the
i FC? command above. All bits may be cleared to 0 with the CE‘A
command.
Murmur-inn Request a report of all current faults. The 16 n characters represent the
current status of the fault conditions with each it replaced with a 1 to
indicate a fault conditions exists, or a 0 to indicate a fault condition do >
not exist. Starting with the ﬁrst (leﬁ most) 11 character, the definition of
each fault bit is as follows: ‘
l Soﬁware error interrupt has occurred
2 Not currently used
3 lst or 2nd L0 PLL out of lock
4. DSP clock synthesizer PLL out of lock
5. Transmit synthesizer PLL out of lock
DSP processor not responding to requests
EEPROM dos not accept programming
One of the serial ports has timed out while transmitting
Not currently used
10. Not currently used
ll. Serial port overrun error
12. Serial port purity error
13. Serial port ﬂaming error
14. Not currently used
15. Not currently used
Not currently used
All bits except bit I will be cleared to 0 whenever the associated fault
condition goes away. Serial port faults are cleared when subsequent
serial data is received without the error condition. All hits of this
message may be cleared with lhe CFC command.
Issue 1.0 3-1
arc-100 TECHNICAL MANUAL ©cug|g¢=nguN|cAT|aNa
A mun-mm- nut-mun mam-um;
Table 3-3 Radla Command and Status Massages.
Descrlption
Fault Summary. This is an abbreviated version ofthe FC? command. If
any of the PC? bits are set true, this request returns E‘sl. Otherwise it
returns FSO.
Change manual gain. Digits l through 3 represent the signiﬁcant ﬁgures
of the IF gain reduction from full gain. This number is in units of 1/2 - =‘
and is implicitly negative. To convert the desired actual manual gain
reduction in dB, multiply it by 2. For example, to set a gain of- l23.5
dB, send 6247. (Range: 0 through 255 corresponding to 0 to 127.5 dB
of gain reduction).
Request the current manual gain setting. The format of the reply is the
same 5 for the Gnnn command above
Go to the boot program. This command is used in preparation for
uploading new control and DSP ﬁrmware. The unit immediately
switches to the Boot program and will accept Xmodem formatted
uploads from the asynchronous serial pens or the HDLC part. For
asynchronous serial uploads, the desired program to upload and serial
line parameters must still be selected with the rear panel DIP switches
Nora: Primarily for factory use.
Cubic Communications
VHF Transceiver Var
n.nn mar-dd-yy
Copyright “mm" CCI
Request identiﬁcation information for the control processor ﬁrmware.
Information rerun-red includes the manufacturer, version number, date,
and the copyright notice of the program.
DSP firmware: Va: Request identiﬁcation information for the DSP processor ﬁrmware.
Information retumed included the version number and the date.
Set the audio input source. it is replaced as follows: 0 = reserved, 1 =
line input, 2 = internal tone, 3 = internal noise source, and 4 = CW
Request the audio input source. The reply format is the same as for the
181: command.
Change the amplitude based squelch level. Digits 1 through 3 represent l
the sigral level in dBm that must he present to open the squelch with th-
1 representing the hundreds odem, and the 3 representing the units of ‘
dBm. This number is implicitly negative. If it is set to 113, the squelch
will open without regard to signal amplitude. Note that the squelzh may
also be opened by the carrier-lo-noise ratio independently of this setting
Request cur-rent squelch level senings - both level and noise. The reply
format is the same a for the 1.123 and N12 commands.
3.8 Issue 1.0
QCUBlc-GOMMUNICATIONS NFC-100 TECHNICAL MANUAL
Ammunmmwdm
Table 3-3 Radio Command and Status Messages.
3 that represents the desired mode. Mode 0 is analog AM modulation,
mode 1 is AM~MSK digital modulation, and mode 2 is DBPSK digital
modulation. Presently only Mode 0 is valid
Request the current model The reply format is the same as in the Mn
Set the carrier-to—ncise mio based squelch. Digits 1 and 2 represent the
carrier-to-noise level in dB, range 0~99 dB, that must be present for the
squelch to open. Note that the squelch may also be opened by the signal
amplitude independently of this setting. Settings > 40 dB may not
operate reliably.
Report current transmitter forward power in watts.
Run the power-on-self—test (POST) sequence. This test is run
automatically at power-on, but may he repeated at any time with this
command.
Request the results of the most recent power—on-selﬂtcst (POST)
sequence. The POST sequence includes the BlTE (est. Each of the 11
characters represents one of the tests performed when the POST
sequence is run and is replaced with a l to indicate that the test failed or ‘
a O to indicate that the test passed. Starting with the ﬁrst (leﬂ most) n
character, the deﬁnition of each test bit is “ follows:
Control processor prog'am ROM test failure
Cntrol processor RAM test failure
DSP processor self test failure
BITE test failure
Power Supply Test
Issue 1.0 3.9
ATC-100 TECHNICAL MANUAL a CUBIC. COMMUNIGA‘I'I ONB
Amnln- Mammal“
Table 3-3 Radio Command and Status Massages.
-__,
Psnnnnnnnn Request status of power supply voltage. The 8 11 characters represent th ‘
status or the power supply voltages. Each n is replaced with a l to
indicate a fault condition exists, or a 0 to indicate a fault condition does
not exist. Starting with the ﬁrst (leﬁ most) 11 character, thedeﬁnition of
each fault bit is as follows,
-1 7 too low
-17 too high
. *8 too low
+8 too high
+17 too low
+l7 too high
+28 too low
+23 too high
All bits will be cleared to 0 whenever the associated fault condition g - -‘
away.
FNF’WhPPNr‘
Note: For negative voltages, ‘lao low 'm8ﬂm 100 class to zero Volta".
Set the transmitter power output to an watts. Range: 1 — 25 watts
(Default value is 25 watts.)
Report the current transmit power setting. The reply format is the same 3
a for the PWRnn command
Enable or disable updating Received Signal Smength indication (RSSI)
output. Replace the n with 1 to enable RSSI operation or 0 to disable
RSSI output When RSSI output is disabled, updating ceases.
(Default is on.)
Request current stams of the updating RSSI output (on or oﬁ). The 11
character is replaced with a 1 if R85] is enabled, or a 0 if RSSl is
disabled.
5123455 Mn Lnnn Nnnn
Ari Gnrm Iln an
Request receiver operating parameters. Each of the reported parameters
is formatted the same as for the individual requests.
Requen the current audio output level in dBm. The 1 character
represents the sign of the value and will be either + or -. The 1 digit
represents the tens of dBrn, and the 3 represents the tenths of dBmt
Range -50.l to +12 dBm.
Request signal strength in Mode 0. The i character represents the sign
ofthe value and will be either + or ~. Digits l lhmugh 3 represent the
signiﬁcant digits of the signal strength in dB relative to one milliwart
where 1 represents the hundreds ndem and the 3 represents the unis 0
dBm. Range: -1 15 to +l2.
OCUBIQCOMMUNICATIQNS ATC-ﬂm TECHNICAL MANUAL
Awummmwam
Table 3-3 Radio Command and Status Messages
“Same as the SS? command except that the returned value IS in units of
In dB. This gives more resolution for making certain measurements.
Request the current carrier-to—ncise measurement. The returned value '
expressed in dB with the 1 representing the 1005 (1de (always 0) and
the 3 representing the units ode. Range: 0 to 50 dB.
Transmit/receive switch for Mode 0. To switch to transmit replace the
with l. to switch to receive replace the n with 0.
Set the ﬁequency of the tone generator (or ﬁequency shit} in FSK mode
to am Hz Range - 50 to 6000 Hz. (Default is 1 kHz.)
Sets the transmitter oﬁ'set. TOD is no offset, T01 is -4ItHz. and T02 is
+4 kHz. (Default is TOO.)
Set the Mode 0 transmit timer value, The nnnn characters represent the
maximum time in seconds that the transmitter may stay on. Range: 1
through 1020 seconds. A setting of 0 disables the timer. The default is
timer disabled.
Request the transmit/receive srams. If the unit is in the receive state the
reply will be T0, ifin transmit, the reply will be T1.
Request the current transmitter offset frequency. The reply format is the
same for the TOn command above
Turn on or off vector feedback. Replace the n with l to turn on vector
feedback, or a 0 to turn off vector feedback. Vector feedback is on by
default at power on.
Perform the vector feedback calibration and store the constants in a tabl
in the EEPROM. Before executing this command, a dummy load must .
be connected to the antenna connector. The calibration may take over 3!
seconds to complete. and activity is signaled by a click for every
frequency stored in the table The command is complete when the
clicking stops. Vector feedback is turned on at the completion of this
command,
Requests status ofvector feedback. The reply is the same as for the VFn
command.
Issue 1.0 3-11
ATE-100 TECHNICAL MANUAL OCUBIC-CQMMUNIGATIDNS
Amara-cue mum-Im-
Table 3-3 Radio Command and Shtus Messages.
Requests the vector feedback values for the current ﬁ-equeney. The rep]
is the same found as the Wltnnnnn and VEoznnnnn commands.
Sets the values in the vector feedback constant table in EEPROM to
zero. This prevents the use of vector feedback The m1, command
will rebuild the table.
Store the value tnnnnn as the 1 vector feedback value for the current
frequency in the table. The value must he in the range nf-32768 to
Run the vector feedback calibntiun mutine on the current ﬁ'eqllency
only. The result is stored in the vector feedback calibﬂﬁou table.
Store the value tnnnhn m the Q vector feedback value for the current
frequency in the table. The value must he in the range of-32768 to
32767
Where ennn represents the sign and digits ofthe power supply voltage
in units of ll lo volt, naminal values are:
VPS+280 +170 +080 —170
3-12 Issue 1.0
a;
QGUBIB-COMMUNICATIONS
Ammummemmum
3-2 POWER UP AND TESTING
CONSIDERATIONS.
Whenever power is applied to the Innsceiver it will
execute a Power On Self Test sequence This sequence
tests several functions inside the transceiver including
memory tests, a conﬁdence test of the conﬁguration
options stored in non-volatile memory. and a BITE (built
in test equipment) test of transceiver ﬁmctions. Since it is
often required that the transceiver not send any unsolicited
bus messages, the transceivers will not announce a wait
condition ova the bus. During the wait condition1 the
transceiver will only respond to a limited subset of
commands ﬂout the bus. These are:
: 7 Request interface status message
P0? Request results of Power On Self Test
! Clear wait condition and proceed with startnp
While in the wait condition. if the : ? command is sent. the
transceiver will respond with:
TE : EEPR or TE : POST
This indicates that the transceiver is waiting. This
condition can only be cleared by sending the ! command
To determine the reason for POST failure, the user should
then request POST results (PO?) and if this shows BITE
failure, also reqth the BITE results (BI?) aﬂer clearing
the Power on Wait condition with the ! command.
Issue 1.0
ATS-100 TECHNICAL MANUAL
N (YT E:
In the event of a POST failure, the radio
will emit a sequence of failure codes in
morse code. These codes should he
relayed to CCI in order to assist in
troubleshooting.
The proper way to structure a remote control program to
handle this condition is to query each-transceiver for
interface status (: ?) before sending any other commands
at power up and wait for the reply. A reply will not he sent
until a wait condition has been entered or normal operation
has been entered. If the wait condition is indicated, send
the l command and test again This process should be
repented until the unuseeiver responds with an interface
shins other than TE : (serial interface.)
3-3 EEPROM FAILURE.
If a POST failure was caused by a corrupted EEPROM,
send the VFCLR command to reset the vector feedback
constant table values in EEPROM to zero Next, connect
the transeeiverto a 25 watt. 500 dummy load. Then send
the VFCAL command to rebuild the table.
3-131(3-14 blank)
®CUEIQGOMMUNIGATIDNB
Awrdn-Cummnﬂlydma
ATC-100 TECHNICAL MANUAL
CHAPTER 4
GENERAL THEORY OF OPERATION
4-1 INTRODUCTION.
This chapter contains a block diagam description of the
ATC-IOO. Each oflhe hearth/modules are discussed in the
paragraphs below: (See ﬁgure Fo—Z.)
NOTE:
AC input is standard, DC input is optional.
4-2 BLOCK DIAGRAM DISCUSSION.
4-2.1 Mama The Recepucle/RF] rum
keeps internally generated power supply switching noise
of the input line When the rear panel power switch (53)
is set on, power is applied to the power supply module
through the Receptacle/RF] Filter, through the circuit
breaker (CBI) and the Line Filter.
4-22 ML. The Line Filter hoardkeeps internally
generated power supply switching noise off the input line.
When the front panel power switch is set ON, input power
is applied to the power supply module through the Line
Filter board. »
4.2.3 Meals—mm. The power Simply
module is a switching regulated type that provides +28, +8,
+17, and -17 VDC to the RF Analog Board. Digital Board.
PA Module and the TX Synthesizer Module using 90 to
250 VAC input power (automatically sensed). Fault
detector circuits send a fault signal to the Command Input
Latch in the Digital module if any of the voltages fall
below a preset level.
4-2.4 REM The RF Analog Module
contains the RF Section, I' IF, 2“ IF, Mode 2/3 faStACrC
Detector, Mode 01] AGC Filter, AGC Shaping Network,
Mode 01 l Transmit Audio input, Mode 0/1 Receive Audio
Driver, Receiver Signal Strength Indicator (RSSI) Driver,
LED Drivers, DSP Clock, 10 Ml-lz Reference, RF Bite
Circuits. Refer to the RF Analog Module schematics in the
back of this manual for each of the circuits described
below. ' '
4.14.1 Mm The RF Section contains the
directional coupler. transmit/receive switch1 higltpass ﬁlter,
limiter, highm filter/FM broadcast notch, l'l RF
preselector. RF AGC attenuator, RF ampliﬁer, 2" RF
preselector, ﬁxed attenuator. l“ mixer. and the 1“ local
oscillator. Each of these circuits are described below.
4-2.4.l.l 2mm The first section on the
antenna pon of the RF/Analog board is a directional
coupler etched onto the printed circuit board. The
directional coupler allows a very low path loss for both
lransnined RF as well a received RF signals. The circuit
couples a small BITE signal into the receiver from end ﬁor
functional testing while keeping the sigtal radian'ng out the
antenna to a very low level.
4-2.4.l.2 Z‘mmmitkcglve Swirgh The transmit/receive
switch is used to route the transmit signal to the antenna
when in transmit mode and to route the signal received
from the antenna to the receiver when in receive mode.
Two PIN diodes (C111 and CR2) are used for this function.
When in transmit mode, both diodes are biased on, the
trunk signal goes through the series diode (CRl), while
the shunt diode (CRZ) provides a high impedance at the
C1/CRl node through the 90 deg-ea phase shirt network
(C130 - C56). In receive mode, both diodes are off,
presenting a high impedance which allows a low loss path
h'om C] to C7.
4-14.13 M The highpass ﬁlter
(C7 - C14) rejects frequencies at the 1“ [F frequency
(45 Mil-Ix) from entering the rest of the RF circuitry. It also
attenuates signals which could create harmonics in the RF
passhand (1 la - 137 MHz) from reaching the l" mixer.
4-2,4.l.4 1 Miller. The RF limiter is used to keep very
high level signals below levels which could cause damage
to active components downstream. Diodes CRIS and
(31145 provide a fast responding clamp to limit the voltage.
CR“ is a PIN diode which provides a shunt impedance
which decreases with increased RF level to provide
additional promotion. Printed inductors ML] and MLZ
along with shunt capacitance ﬁ'om C46, PCB traces and
diodes form a lowpass ﬁlter.
4-2.4.l.5 WWII. The
circuit of C20 - C26 is an elliptical highpass ﬁlter
speciﬁcally designed to attenuate signals in the FM
broadcast band (88 - 108 MHz), while providing a low
path loss to signals in the desired band (1 18 - [37 MHz).
4-2.4.1.6 11mm The 1’ RF preselector is to
break the aircraﬂ hand (1 IS -137 MHz) into 4 ranges to
provide low loss in each of the ranges and good selectivity
outside the range. The 4 ranges are achieved by using Pl'N
diodes (CR9 - CR12) to switch in or out variable capacitors
(CRSZ, 33. 42 and 43) which resonate with Ll] and LN.
PRELIMINARY
Issue 1.0
4-1
ATC-100 TECHNICAL MANUAL
4-14. 1.7 85 AQQ Armstrong. The RF AGC attenuator
is used to provide a voltage controlled attenuation of the
RF signal to prevent circuits downstream from functioning
in a non-linear fashion. As bias current increases through
Pl'N diodes CRZS and CRZG, their RF resistance decreases
and the signal is attenuated. The RF resistance of CR26
connects the RF node of L32 and C101 directly to RF
ground (C100). The RF resistance of CRZS connects the
RF node of L31 and C97 directly to RF ground (C99)
through a 41 ohm termination (R165). This circuit
provides a low VSWR at the input (C96 side) at all
attenuator settings with the 90 degree phase shiﬁ network
formed by C97 - ClOL This circuit has a range of
approximately 20 dB.
4-14.13 BE Ampliﬁer. The RF ampliﬁer is used to
boost the input signal to overcome losses downstream as
well as beginning to establish system noise ﬁgure. The
resistor network between U8 and C48 serve to provide an
RF pad to the ampliﬁer, which helps input VSWR and
smbility (to oscillation). The resistors also provide the DC
his to U8.
4-2.4.1.9 21m The 2“ RF preseleetor is
nearly identical to the 1ll RF preselector. Its main
diffm—ence is it has more selectivity than the 1‘l preselector
at the expense of slightly more insertion loss. The better
selectivity and higher loss are appropriate here because it
follows the RF ampliﬁerr The 1" and 2" RF preselectors
produce a smooth cascade with the RF ampliﬁer (and bias
pad) acting as an impedance buffer,
4-2.4.1.10 £ixg¢ Amnggrgr. The three resistor pad
(R147, 149 and 150) provide the 2“ RF preselector with a
stable impedance while also lowering the level to the ﬁrst
mixer (Zl).The three resistor pad (R147, 149 and 150)
provide the 2" RF preselector with a stable impedance
while also lowering the level to the ﬁrst mixer (Zl).
4-2,4.l.11 l" Mr'xz. The I' mixer (Zl) translates the RF
signals to the 1“ IF frequency (45 MHz), The drive signal
from the 1" L0 is ﬁltered through a lowpm ﬁlter (C83 -
C88). The L0 port sees a broadband termination with the
bandpass network (L30IR152 - CBQIRlSS)
4-2.4.l.12 l" Lg‘fﬂ willglgr. The 1“ L0 is uSed (0
conven the incoming signal to the LE. frequency of 4s
NEHJ. The frequency of the 1’ L0 can be found by adding
45 MHz to the tuned channel ﬁ-equency. The output level
ofthe 1“ L0 is +11 dBm that is fed to the l‘ mixer, 21.
The Voltage Controlled Oscillator generates the Pl L0
frequency in 2 hands. Q34 and associated circuitry
operates from 163 to [71.975 MHz while Q37 and
associated circuin'y operates from 172 to 181.975 MHL
,,
4-2
©cuarc.c0MMuch'r|aNs
Anlmlam-cmmllﬂwdmuhs
5 VDC on the FLTSELI line connected to R553
switches to the 172 to 181,975 MHz VCO. The VCO
signal is ampliﬁed by (257 and Q5 1 to buffer the VCO
and increase the level to +17 mm
The frequency of the 1“ L0 is determined by a digital
phm lock loop. The 10 MHz reference circuit provides a
highly accurate signal that is divided by 100 to provide 100
KHz as a comparison frequency for the digital phase
detector contained in I’LL integrated circuit. U53. The
signal is ampliﬁed and buffered by Q42 and input to Pin 8
ofU53, An internal programmable divider in USE) is set to
divide by 100. The VCO signal is ampliﬁed by Q57 and
input to the RF 1'N pin ofU53. This signal is divided by a
programmable divider contained in US} and used as the
second inputto the digital phm detector contained in U5].
The phase detector genentes an error voltage on the PH?
pin of USS. This voltage is integrated by Q26 and invemd
by 1156 to provide a DC tune voltage ( TP13 )to set the
VCO on the desired frequency.
Programming of the Phase Lock Loop is accomplished by
3 line serial interface consisting of Data. Clock, and
ISTLOEN. A data word consisting of 24 bits is clocked
into registers contained in U53 and latched on the rising
edge of the ISTLOEN' line on the STROBE input to U53.
4 data words are required to program U53, providing
initialization and Erequency setting. Once initialized. the
ﬁ-equency is changed by a 32 bit word.
4-241 1” [E (1; MHz) The 1“ IF contains the l’
mixer termination, lll 45 MHz IF ampliﬁer, IF AGC
attenuator, ﬁxed attenuator, crystal ﬁlter, 2"1 45 MHz IF
ampliﬁ , 2" mixer. and the 2" local oscillator. Each of
these circuits are duuibed below,
4-24.24 [” Mg“ r IQMiMigﬂ, The leort of the l'
mixer is mailed to a highpass ﬁlter and broadband
tennimtion circuit (between Cl I0 and L4G). At 45 MHz,
this circuit provider a low loss path between the mixer and
[F ampliﬁer (U 15). Out of hand, signals are terminated
into R187 and R189 for a low VSWR over a very broad
frequency range.
4-24.22 WM Aﬁerthelossesof
the 2“ preselector, pad and mixer, the signal needs to be
boosted again, U15 serves this purpose. L40, 4] and C128
lower the VSWR chlS at 45 MHz U2, 43 and C129
serve as a DC bias path and parallel resonant circuit at the
output of U15.
:,.
Issue 1.11
acuarmcuMMUNrcan-rnus
Ane-wlmcﬂmhﬂ'ydm
4-2.4.2.3 mm The [F AGC attenuator
(C12! - C170) is very similar to the RFAGC attenuawr.
The main differences are the ﬁ'equency range (45 MHZ
instead of the aircraﬂ band (118 — 137 MHz», and two
sections instead of one. The IF AGC network also contains
three 90 degree phase shiﬁ networks (C121 - C170). The
two lF AGC networks are also placed in a mirror image
fashion to produce low VSWR to both the input (C121)
and output (C170) at all amnuation settings. The IF AGC
attenuator ha a range of approximately 40 dB.
4-24.24 £5“ at Arzgngarz. The resistor network of
R19, 2, 20. 21, and 121 helps to stabilize the input
impedance of the crystal ﬁlter network with var'ying
attenuation from the IF attenuator circuit.
4-2.4.2.5 MLEL‘IEH. The crystal ﬁlter (1-11)
provides selectivity to keep components downstream
within their linear range. The inductors and capacitors
(C141 -c142) match so ohmsupoothecrystal impedance
of approximately 500 ohms. The adjustments in this
circuit are critical to provide a repeatable group delay ﬁ’om
unit to unit for proper response to DBPSK signals.
44-42-6 WW Th= 2“ 45 MHZ IF
ampliﬁer (L119) boosts the signal level prior to the 2"
mixer.
4-2.4.2.7 m Theanmixer(22)trar'rslatesthe1’I
1!” frequency (45 MHz) to the 2" IF ﬁ'equency (456 KHZ).
The drive signal from the 2“ L0 is ﬁltered through a
lowpass ﬁlter (0185 - C138). The L0 port sees a
broadband termination with the bandpass network
(LSZIR273 - ClQO/R276).
4-24.28 Madame The 2"‘ L0 is used to
active! the 45 MHz [F to 456 10-11 and operates at 44.544
MHz The output level of +17 dBm is fed to the second
mixer, ZZ.
The Voltage Controlled Oscillator ( VCO ) consim of Q40
and associated circuitry. The output is ampliﬁed by Q55
and Q54 to provide the +17 dBm output to the 2'“ mixer
21. C329 is adjusted to center the VCO range to 45 MHz
13 MHz.
The frequency ofrhe 2" L0 is set by a Digital Phase Lock
Loop. US4 contains the reference divider, VCO divider
and Phase Detector required. Frequency accuracy is
determined by a 10 MJ-lz reference signal that is buffered
by Q4] and input to'thé OSClN pin ofU54. The reference
divider contained in U54 divides this signal by a
progammed value 01'625 to provide a reference of 16 KHz
to the Phase Detector. The VCO frequency is input to the
FIN pin of U54 and divided by the value of 2784
Issue 1.0
ATC-WO TECHNlCAL MANUAL
programmed into the VCO divider. This frequency is
compared to the 1610-12 reference by the Phase Dmctor to
generate an error Voltage on the PD pin if USA. The error
voltage is integrated by Q3: to provide a DC Tune Voltage
(m3 ) which sets the VCO to the desir’ed‘ﬁ-equency.
Programming the PLL integrated circuit is done with a 3
line serial interface. Data is clocked into US4 while the
ZNDLOEN line is held low. An 8 bit datasvord initializes
1.154, a 15 bit data word programs the reference value and
a 16 bit data word programs the frequency.
44.4.3 mm The 2" [F contains the 2"
mixer termination, 2'“ 117 ampliﬁer, ceramic ﬁlter, and
variable gain 2"‘ [F ampliﬁer. Each of these circuits are
described below.
4.2.4.3.1 Zimmerman The IF port nfthe 2"
mixer is attached to a bandpass ﬁlter and broadband
termination circuit (between 128 and 1.56). At 456 KHzq
this circuit provides a low loss path between the mixer and
IF ampliﬁers (06 and U23). Out of hand, signals are
terminated into R299 and R301 for a low VSW‘R over a
very broad frequency range. The circuit containing L56
through 0202 is a broadband termination working down to
DC.
4-14.32 2" [5 Amazing. Q6 and its surrounding
components provide a gain stage prior to the ceramic ﬁlter
(Pu). Resistors on the source of Q5 maintain a constant
current bias. L57 and C204 are a parallel resonant tank at
the output of Q6, LS7 also provides DC power to Q6.
4-2.4.3.3 ﬁgure ﬁlter The ceramic ﬁlter (FLZ)
provides addin‘onal selectivity prior to the analog to digital
conversion Resistor networks at the ﬁlter input and output
provide the proper termination impedance to the ceramic
ﬁlter.
4-2-4-34 WWW U2? is (11:
ﬁnal gain stage prior to the analog to digital conversion.
R328 is adjusted to a set value of translation gain of the
analog circuitry.
4~2-4-4 MM The Mode 2.3
fast AGC detector contains variable gain 2" IF ampliﬁer
(analog AGC threshold set) and the detector. Each of these
circuits are described below.
4-2.4.4.l in 1 air: In [i r r
Ihrgsjgldigll. The 456 KHz level is boosted with U23 and
U24 to provide adequate levels to the detector diodes. R22
is used to set the threshold level ot‘the detector.
4-3
[WC-100 TECHNICAL MANUAL
4-2.4.4.2 MEL The IF signal into detector diode-
CR6 and CR7 produce a V. wave rectiﬁed voltage for the
AGC circuitry. Temperature compensation is accomplished
by measuring the differential voltage of the detector diodes
relative to a set of diodes with a ﬁxed biasr A fast
attack/slow decay integrator is used to quickly adjust the
analog output level to allow capture of a DSPSK signal.
CR}. R52 form the path to charge the integrator capacitor
Cl 1 1. R69 sets the slow decay discharge path for C1 ll. A
signal from the digital board is used to discharge the
integrator capacitor (Cl l I) with QSO. R72, 73 and CRl9
clamp the integrator output to approximately 3 VDC.
4-245 W The circuil from R453
to C434 forms a lowpass ﬁlter for anti-aliasing from the
digital to analog converter on the digital board. The AGC
voltage comes from the digital board when the receiver is
in mode 0 or mode 1. U26 switches the AGC voltage
between the digital board (mode 0,1 or voice) or from the
fast AGC circuit (C60 - R74) when in mode 2 or 3.
4-244-6 MM 11“ AGC shaping
network (R87 - U4) serves to provide a reasonably linear
voltage to (analog) attenuation level (in dB) transfer
function. The RF and [F AGC attenuators have a very
non-linear transfer curve. it is important to have a linear
transfer characteristic for two reasons, AGC loop stability
and RSSI reponirrg accuracy The shaping network uses
two multiplier 10's (1127 and U28) to form a third order
polynomial transfer network. U4 serves as a buffer to
drive the AGC circuits.
4-2.4.7 [Mada Q. 1! 1mm“ dugig litgur. The transmit
audio input circuit (157/158 through C405) serves two
purposes. The ﬁrst is to convert the balanced audio input
to unbalanced. and second to buffer and ﬁlter the signal.
U32A, 323 and 33A convert the balanced signal to
imbalanced. Rrss to C405 ﬁlters out hiyr ﬁequency noise
components before going to the analog to digital converter
on the digital board.
4-2-45 MM The circuitry
from Rl27iR12 through C2891‘0290 is a receive audio
balanced input to balanced output for mode 0, l or voice.
When in mode 0, l or voice, analog balanced inputs from
the digital board travel through USA and are ﬁltered in
U3 B. UZS opens the audio path to U30 and U3] who)
transmitting to avoid noise getting to ﬁre audio output and
into a modem, speaker or headphones. U‘jl converts the
signal ﬁ'om unbalanced to balanced and serves as a driver
for a modem or otii‘er’ audio output device. The circuitry
ﬁ'om C3 S/C37 to R44 is a detecnor which provides a digital
output to J2 when audio is present at U31l U [613 converts
the balanced audio signal to unbalanced. UI6A, CR38 and
C73 form a V: wave rectiﬁer and integrator which produces
4-4
©cuatc.coMMUNrr=A'rraNs
A man. mu m M am
a DC level proportional to the AC input. Ul7A and in
surrounding resistors form a comparator with hysteresis
which generates a high DC level when an audio drreshold
level is achieved. Q45 and R44 produce an active low
output.
4-244-9 WWW
The RSSI (Receive Signal Strength Indicator) is a DC level
used to drive an external analog' meter which is
proponional to received signal level. refer to table 4-1.
1135 is a digital to analog converter which takes in serial
data and outputs a DC voltage. U39A is a buffer and gain
ampliﬁer to drive the meter.
Table 4-1 RSSI Input Slynal Volmges
W RF Input 14V m _
0,88
19.00
275.00
5,000.00
15,000.00 2.74
70,000.00
$60,000.00 7
‘r
4-14.10 LEM: Four ﬁ'ont panel LEDs are circuit
driven. The POWER LED line is drlven directly from the
+8 VDC line from the powe- supply. Tire other three lines
are controlled through logic levels ﬁ-om the digital board.
44.4.1 1 w The 135? clock circuit generates a
49.l52 MHz signal used as the timing signal for the DSP.
A crystal oscillator is employed to achieve ﬁ'equency
accuracy during start up conditions. The oscillator is
locked to the 10 MHz system reference frequency for
precise accuracy.
The Voltage Controlled Crystal Oscillator (VCXO)
consiss on9. Y2 and associated components. C183 sets
the center frequency of the oscillator such that the
oscillator will tune above and below 49.152 MHz by 2.5
kHz The oscillator output is amplitude limited by m0
and buffered by Q39. A low pass ﬁlter and resistive
attenuator reduce harmonics and set the output level to 7
dBm.
Issue 1.0
®cuara=0MMUNIcAﬂu~s
A "we!“ cm- saw-m an, .,..,.,.,.,,,
The DSP Clock is locked to the 10 MHz system reference
using a Digital Phase Lock Loop. The reference divider.
VCO divider and Phne detector are contained in integrated
Circuit U65, The IOMHz REF signal is ampliﬁed by Q44
and input to the OSClN pin of U65. This signal is divided
by the reference divider to provide a 16 KHz reference to
the th Detector. The output ﬁ'om the crystal oscillator
is input to the Fl'N pin of U65 where it is divided by the
programmed value of 3072 to provide the second input to
the Phase detector. The phase detector generates an error
voltage on the PD pin of U65 . This voltage is integrated
by 019 to provide a DC Tune Voltage (m4) to set the
oscillator on frequency.
4—2-4.” Misﬁt—Reining The 10 MHZ
reference circuit provides a 10 MHz signal to synchmniu
the 1" L0, 2“ L0, DSP Clock, Bite Generator and
Transmit Synthesiur. A TCXO is employed for frequency
accuracy over temperature variations and an input for an
extemal 10 MHz reference is provided.
Y] is ﬁre Temperature Compensated Crystal Oscillator.
(TCXO) This provides a 10 MHz signal accurate within 2
parts per million. (ppm) This signal is fed through solid
state switch U47. ampliﬁed by (246 and low pass ﬁltered,
then connected to the 1“ DO, 2"4 L0, DSP Clock, and Bite
generator. Ampliﬁer Q48 provides a 50 Ohm output for
the reference coax to the Transmit Synthesizer.
An external 10 MHz reference can be connected to the
ATC»100 and switching from internal to external is done
automatically by detecting the presence of an external 10
MHz signal. The EXT rum-1: is input to the RF Analog
board on 18. The signal is limited by CR40 and CR“,
then ampliﬁed and bandpass ﬁltered by Q 15 and associated
circuitry. CR43 and U46 detect the EXT lDMI-lz signal and
switch U47 from the internal path to the enema! 10 MHz
path. Simultaneously the 5 VDC power is removed from
Yl to prevent interference.
4-14.13 Rf BITE glimgjg The RF BITE circuit (C368
through R599) is used to produce RF levels in the aircraft
band. Q47 boosts the 10 MHz reference signal into U45A
which divides the frequency of the signal by two to output
a 5 MHz square wave. U4SB takes the 5 MHz square
wave and outputs every narrow pulse at a 5 MHz rate.
The spectrum ofuris waveform is a 'comb" of ﬁ-equencies
at 5 MHz intervals whose amplitudes are reasonably ﬂat
through the aircraﬁ band. The ﬁ'equencies of this comb
generator which earl he used for aircraﬂ band testing are
120. 125. 130. and 135 MHz. R597 - R599 provide
attenuation of the signals as well as an impedance buffer.
Issue 1.0
ATC-100 TECHNICAL MANUAL
4—15 TX §xnmm’gg MM, The Transmit
Synthesizer provides the on channel carrier for the
A'rc-roo o-ansrnitter. During receive mode the syntheriur
output is switched off to prevent interference with the
receiver. ' “4
The Voltage Controlled Oscillator generates the transmit
ﬁ'equency in 2 bands. Q9 and associated circuitry operates
from “8 to 126.975 MHZ while Q12- and associated
circuitry operates ﬁom 127 to 136.975 MHz. 5 VDC on
the FLTSELl line connected to R57 switches to the 127 to
136.975 MHz VCO. The VCO signal is buffered by UN],
QlB, Ull. and UlS. A 0 Volt low signal on the TXSYN
ONIOFF line causes U1] and UN to shut off the signal
path during receive. U16 ampliﬁes the signal to the +17
dBm level.
The frequency of the Transmit Synthesizer is detemrined
by a digital pbm lock loop. The 10 MHz reference circuit
provides nhighly accurate signal drat is divided by 100 to
provide 100 KHz as a comparison ﬁ'equency for the digital
phase detector contained in PLL integrated circuit, US.
The signal is input to Pin 8 of US. An internal
programmable divider in US is set to divide by 100. The
VCO signal is ampliﬁed by U10 and inputto the RF lN pin
of US. This signal is divided by a programmable divider
contained in US and used a the second input to the digital
phase detector contained in U5. The phase detector
generates an error voltage on the PHP pin of US. This
voltage is integrated by OS and inverted by U7 to provide
a DC tune voltage to set the VCO on the desired frequency.
Programming of the Phue Lock Loop is accomplished by
3 line serial interface consisting of Data, Clock, and
TXSY‘N EN. A data word consisting of 24 bits is clocked
into registers contained in US: and latched on the rising
edge of the TXSYN EN line on the STROBE input to US.
4 data words are required to program U5, providing
initialintion and frequency setting. Once initialized, the
ﬁ'equency is changed by a 32 bit word.
4-25 M ‘ Madge The Digital module contains two
major sections: the Control Section and the DSP Section.
Each of these sections is described below
44.6.1 M As shown in ﬁgure 4-1, the
Control Section governs all awects of the transceivers
operation. The Control Section receives commands and
transmits status via a R5232I485 interface. All receiver
operating parameters. such as frequency and bandwidth are
controlled by the Control Section. In addition, the Control
Section stores calibration parameters in non-volatile
memory which are retained when power is removed.
4-5
ATS-100 TECHNICAL MANUAL QQUBIQCOMMUNICATIQN-
A ”may”. sauce-m mum-pm
11» Control Section contains a microprocessor which has a 16 bit dara bus The clock frequency ofthe microprocssar is 50
MHz The program is stored in 1 128K x 16 bit ﬂash memory and the data memory consists ofa 32K x 16 bit static RAM.
Non-volatile storage requirements are provided by a 8K x 8 bit EEPROM.
A CPLD is use to generate the address decoding logic circuitry for the various Control Sectiun peripherals. Kn additional 1/0
port in the CPLD is used by the microprocessor for control of the RS-485 interface, the RS-232 interface and other off-board
circuitry.
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HDLC_TXEN
HDLC_KXEN
Figure 4-1 Control Section Block Diagram.
M Issue 1.0
chalc-CDMMUNIGATIONB
Amen-MW mam
The microprDCessor uses a 12 bit MD to monilvr the power
supply voltages (-I W, +I7V, +8V. +28V) as well as the
Forward and Reﬂected power levels.
110 ports provide processor output to the analog and DSI’
sections of the transceiver. D-Intches are clocked by
decoded addmses gated with a processor write signal.
Some oflhese latched output lines are grouped together as
enable, clock, and data lines and are operated by the
processor as synchronous serial ports. Other latched output
lines are used as control signals directly.
IIO signals include:
MICﬁILEY lndiutes that the microphone key
has been controlled on the rear
panel or programmed on the serial
port.
EXTﬁREF Indicates that the extemal
refermce is on.
L0_FLT Indiutes that the 1“ L0 section
hu detected an out of lock
condition.
DSPC_FLT Indicates that the DSP Clock ha
detected an out of lock condition
TXSYN_FLT Indimtes that the TX synthesizer
has detected an out of lock
condition
lST_LO_EN Enables serial data to be written to
the 1’ Local Oscillator sectionl
2ND7L07EN Enables serial data to be written to
the 2" Local Oscillator section.
BITE_EN Enabl: the BITE Test.
TXSYN_EN Enables serial data m be
written to the Transmit
Synthesizer.
DSPC_EN Enables serial data to be written an
the DSP Clock.
RSSI_EN Enables Data to be clocked into
RSSI DAC.
PA_ENAELE Enables the Power Ampliﬁer.
FLTSELO Select one of four preselector
FLTSELI ﬁlters.
Issue 1.0
ATC-100 TECHNICAL MANUAL
T)(_SYN_ON_OFF Enables the transmit synthesizer
output.
SRLCLK Clocks out the control data to all
modules. " M
SRLDATA Control Data to all modules.
Funha'more, an RS~485 and an RS-232.serinl into-face is
available as a directly communication link to the Control
Section via the microprocmor as shown in ﬁgure 4-2. The
microproceuor may use either of these two ports for
maintenance or other predeﬁned purpose.
4-7
ATc-100 TECHNICAL MANUAL ®GUEIGCOMMUNIGATIONB
Am-Mdlocuﬁmm‘ml
—> CONNECTED TO FPGA
Figure 4-2 Control Section Communication Block Diagram.
Inn. 1.0
OCUBIC-CCIMMUNIGATIONB
A wild cane “Melon-m
44.6.2 m The Digital Signal Processing (DSP)
section contains a 4:1 Analog Multiplexer, a M bit A/D
converter, a digital signal processor, 256K x 3 bit Flash
EPROM, 32K x 32 bit Static RAM and a [2 bit D/A
converter.
The DSP Section operates semi-independently ﬁom the
Control Section. All communication between the Control
Section and the DSP Section is through the [10 ports
shown in ﬁgure 4-3. When the transceivers operating
parameters are changed, the Control Section sends one or
more oommands to the DSP Section which makes the
necessary changes to its operation, and the continues
processing
The processor controls the input to the 14 bit AID
converter via a 4:1 analog multiplexer. This allows the
XC95108
CPLD
C31
ATC-1M TECHNICAL MANUAL
processor to select either the Received IF, the Transmitted
Audio. the I Channel Feedback, or the Q Channel
Feedback. This selection is based on the conﬁguration of
the transceiver (i.e. Receive mode, Transmit mode, or
Calibration mode). The AID converter samples that
selected signal at a 96 KHz rate
Once the analog signal is digitized, the processor will
implement the modulation, demodulation, or calibration
algorithms again depending on the mode of the mnsoeiver.
Additionally, the processor will implement automatic gain
control (AGC) drrough the use of a 12 bit DIA converter.
Tire D/A converter output voltage controls the attenuators
on the RF Analog Board.
AGC_OUT
PDIJI -o|
up to]
Figure 4-3 DSP Section Block Diagram.
issue 1.0
NFC-10° TECHNICAL MANUAL
4—27 PA MMIQ. The power ampliﬁer board is
mounted on the aluminum heat sink and performs
modulation and ampliﬁcation of the transmit carrier. The
modulator incorporates vector feedback to reduce the
distortion of the transmitted signal and control output
power. Additional functions include Temperature
Sensing/Fan switch and FWD and REFL power detection.
The transmit carrier is modulated using an IQ Modulator.
The l DATA and Q DATA modulating signals are ﬁltered
using 3 pole active ﬁllers and applied to modulators 21 and
12 through summing ampliﬁers UN and U15. The I and
Q modulations are combined by PS2 and applied to the
three Sage power ampliﬁer consisting of Q3, Q5, and Q6.
The output of Q6 allows a peak power of 100 Watts which
isﬁlteredbya7polelowpasﬁlter. Theoutputofthclow
pus ﬁlter is sampled by the directional couplers and
connected by coax to the T/R switch located on the
ELF/Analog board.
The 2-way directional coupler provides a forward power
signal for the vector feedback and forward and reﬂected
power signals for generation of the REF PWR by CR3 and
U4 and FWD PWR by CR4 and U4 sense voltages.
U3 is a temperature sensing integrated circuit which
provides a logicfevel for switching on a fan. Q7 provides
the hid: current switch for the San connected to 13. The on
and off switch poinu are programmed by a three line serial
data interface at power up.
4-10
gcuatgcnmmuchr-tnus
A man- “hm Moi—u..-
Vector Feedback reduces dimm‘on afthe modulated signal
and controls power output. The forward power sample
ﬁ’vm the directional coupler is input to the IQ demoduhtor,
U6. The unmodulated carrier is input toys to demodulnte
the I and Q modulation signals. Proper phase of the
ﬁrrier is established by the l CAL and Q CAL signals from
the DSP controlling the Phase shiﬁer UlO. The I and Q
demodulated signals are ampliﬁed by U7 and U9 then
input to summing ampliﬁers U15 and U14. The summing
ampliﬁers compare the input I DATA and Q DATA signals
with the demodulated l and Q signals and adjusts the
modulation drive to compensate for distortion caused by
the modulators, summer, and power ampliﬁa.
4-28 Ema; Pgngl‘ The Front Panel contains a four
indicator LED's(i.e. Transmit, RX Signal Threshold, No
Fault, and Power). and two replaceable air ﬁltets..
The Tmnsnit indicator lights red when the unit is
transmitting in any Mode. The Rx Signal Threshold
indicators lights amber when an incoming signal break the
squelch threshold thereby indiuting an incoming signal is
being received. The No Fault indicator r—ains lighted,
green, as long as no faults are detected in the unit. When
a fault is detected the No Fault indicator will extinguish.
The Power indicator remains lighted, green, as long as
power is applied to the unit.
Issue 1.0
©=UBIQCDMMUNI=ATIDNB
Amaraummmmmum.
ATC-100 TECHNICAL MANUAL
CHAPTER 5
MAINTENANCE INSTRUCTIONS
Section I. PREVENTIVE MAINTENANCE
5-1 INTRODUCTION.
This chapter contains both preventive and corrective
operational level maintenance instructions. The informa-
tion includes cleaning and lubrication, inspection, perfor-
mance veriﬁcation, troubleshooting, and suhassembly
removal and replacement.
5-2 CLEANING AND LUBRICATION.
Clean the external surfaces, front panel and the air inlet
ﬁlter pads on the limit panel evu-y 2 weels using a vacuum
cleaner or small son brush to remove any dirt or dust. The
ﬁlter pads can be reused by rinsing with water, see section
5-6 for removal procedures. Do not use any cleaning
agents. There are no lubrication requirements.
5-3 INSPECTION.
If the unit is faulty or suspected to be faulty perform a
visual inspection as follows:
5-3-1 mm
Check front panel for physical damage,
Check external use for physical damage.
Check rear panel for physical damage.
Check rear panel connectors for corrosion and
loose connectors.
Check rear panel cables for ﬂayed or broken
wires.
5-32 Intemgl Ingpgm
WARNING
With the rear pane power switch set OFF
and the power cord plugged into the power
source, high voltage shock danger is
present inaemally al the rear panel POWER
receptacle/RF] ﬁlter, AC Line Filter board,
and the rear panel circuit breaker.
When working on the receiver with
covers removed and power applied, do
not allow tools or metal objects to come
in contact with receiver components.
Equipment damage may occur.
PPM“:-
5"
Issue 1.0
PRELiMiNARY
Unit contains parts and assemblies
sensitive to damage by electrostatic
discharge (ESD). Use ESD
precautionary procedures when touching
removingorinserting parts.
I. Turn die unit 05, and remove the power cord
ﬁ'om the power source.
2. Using a no. 2 Phillips screwdriver, pish down
and turn all captive homers onihe cover 1/4 tum
counter-clockwise. and remove the covers.
. Check for loose modules and circuit boards.
Check for loose connectors, corrosion, or burn
marks.
5. Check for frayed or broken wires and cable
ribbons.
5-4 PERFORMANCE VERIFICATION.
pox
Because of the extensive built-in test equipment (BITE),
the basic performance can be veriﬁed to a high degee of
conﬁdence with minimal external equipment. The
following sections describe in detail the procedures to mn
the ATC~100 self veriﬁcation tests.
54.1 I nn in
It Connect the power input to a suitable power
source. Leave the power switched oﬂ' at this
time.
2. Connect a 50-ohm dummy load capable of
dissipating 25 watts continuously and lot)
watts peak to the Antennajack.
3. Connect a serial COM] or COMZ port ofa
DOS-brad computer or a Windowsm-hased
computer running a DOS window to the
Maintenance port. In most instances a l“Null
Modern" cable or adapter is required. In many
instances a gender adapter is required. Set the
transceiver's rear panel DIP switches for the
desired communications parameters as
described in Chapter 3.
4. Power on the transceiver.
5~1
ATC-100 TECHNICAL MANUAL
5-2
5. On the computer, run the Cubic-furnished
program, RCOMM, and verify the settings.
RCOW remembers the settian the last time it
was run. lfnutning hfortheﬁlstﬁme, be sureto
select the Serial interface: COM port I or 2 (Alt—
I, l or 2). Then examine the serial line
parameters at the bottom of the screen or
window, If using the recommended Factory
Default settings on the transceiver, die RCOMM
settings should include
Baud Rate = 38,400
Data Bits = 8. no Parity
Address = 0
FIC (ﬂow control) = OFF
Terminator -
Preamble - lSTX, 3ADR.
lfany pain-idem need to he changed, access the
Conﬁguration/Serial menu (Ah-C, S) and the
parameter to be changed.
HPP-PF’P
6. Verify communications with the transceiver by
typing 1D? and Return. You should see an
ASCII message identifying the unit as an ATC-
100 with a canal soﬁware version and date. If
so, proceed to transceiver performance
veriﬁcation.
OcuatacoMmuch-rlous
54.2
A-wdmmmmﬂm
T . E rf i .
1. Use the PO? query to obtain the results ofthe
Power On Self Test. All zErE's indicates no
failures. Refer to Table 3-3 for die meaning of
the individual mult bits. If desired, use the to
command to repeat the less.
2. Uselhe at? query to obtain the results ofthe
last BlTE test sequence. All zeros indicates no
failure. Refer to Table 3-3 for the test
frequencies of the individual tests. Ifdesimd. use
the BI command to repeat the test sequence.
The BITE sequence conducts a receiver
functional test at one frequency in each'
M510! band.
3. Usethe RR? querytorunﬂieRemoteBlTEhest
and receive the mks. Refer to Table 3-3 for
details on the forward power, reﬂected power,
VSWR, modulation percentage, MAR (receiver
sensitivity margin).
If the BITE tat reveals no failures and the Remote
BITE indium adequate forward power, law VSWR,
adequate modulation percentage and MAR values,
the unit is ﬂrlly operational.
Issue 1.0
QGUBIC-CCIMMUNICATIONS
[immune-u commune-om.
ATC-100 TECHNICAL MANUAL
Section II. CORRECTIVE MAINTENANCE
5-5 TROUBLESHOOTING.
5-5.1 TruI h "n Phil ,
Cemin assumptions are made concerning the
noubleshooting approach as applied to the receiver as
follows:
i. All point-to-point wiring is correct. Therefore, no
malfunction is the result of a wiring (or cable
connector) fault.
NOTE
Suspected failure ofeahles or connectors
require visual inspection and continuity
tests using the appropriate diagram. See
FO-3 for interconnecting. schematic.
2l Malfunctions are non-interactive. Each symptom
of a problem is caused by a single malfunction
and no additional failures occurred during the
troubleshooting process.
3. Multiple faults can be isolated if they are
non-interactive.
4. Preventive maintenance has been performed
(Section I).
5-52 BgiIL-ln Tag. The ATC-100 provides three
types of testing: power-on self test (POST), built-in test
equipment (BITE), and built-in test (BIT). Each is
discussed below.
5-5.2.1 £2511 The POST is performed automatically
each time the receiver is powered on Under ﬁrmware
control, the POST sequences through a series of tests that
checks the Conuol and DSP section of the Qigital module,
then activates the BITE check. If a failure is detected, the
unit generates an audio tone in morse code describing
error. Record the failure data Depending on the failure,
receiver functions may or may not be possible. If a BIT
fault is detected aﬂer the POST, the unit will also generate
an audio tone in morse code describing error. POST results
are also reported over the remote control bus.
5-522 5112, The BITE check is controlled by the
ﬁrmware and is a sequence that cheels the signal path with
the BITE Gena-stun This test exercises the entire receiver
signal path. Differ—t frequencies are used to check each
preselector ﬁlter. The BITE check is automatically
pﬂ'formod during the POST, or may be selected manually
at any time by the remote control bus. The audio output is
disabled ﬁlming the POST BITE check, but k enabled
during the manual BITE check.
(See ﬁgure FO-Z). During the BITE check, the Control
section in the D‘ or] module activates the BITE circuits
through the shiﬁ register in the Preselector section of the
RF Analog module.
5-52.31 ELL During normal receiver operation, fault
detectors are operating in the background Table 5-1 lists
the fault detectors, their locations and the fault signal sent
to the Control section in the Digital module. If a fault is
detected, the Control section stores the infunnation in
memory, causes the fault indication to be shown on the
display. and sends the fault information over the remote
control bus. The operator can View the current or
cumulative faults (since power up) using the UTILITY
FAULTS soﬁ key menu.
Table 5-1 Fault Detectors.
nsrc FLT RF Analog
TX SYNTH FLD
SELF TEST ADG "
Issue 1.0
Moduletocauon . i
mm worrwumrnock
Transmit Synthesizer TX Synthesizer out of lock 1
Digital Board Power Supply Monitor
ALi
DSP Clock out of lock
5-3
ATC»100 TECHNICAL MANUAL
5-53 W. Equip”!!!
troubleshooting should be performed in the following
order:
lnitial checks.
Fault identiﬁcation
Front panel display interpretation.
Signal tracing (lfrequired).
Suhassembly replacement.
P‘PPNT
56.3.1 Mm [fa problem is suspected conduct
the following:
1. Check that the power switch is on and the Power
and No Fault LED's on the front panel are
lighted. If the Power and No Fault LED's are oﬁ,
and the power switch is set to on. ensure that
input power is con-eat.
2. Check for air ﬂow into the unit from the front
panel. The fan on the rear panel draws air
througi the filter on the front panel.
3. If an external reference frequency is used, try
disconnecting it, and recheck the transceiver.
Check for correct external reference frequency.
5-532 inﬂammation Should the transceiver
identify a fault, the ‘No Fault" LED on the front panel of
the transceiver will extinguish" Since the transceiver is
designed to be operated remotely veriﬁcation of the "No
Fault' LED may not be a viable option. If a malfunction is
suspected Several Radio Command Messages are available
to help localize and determine the cause of the problem.
These command messages are:
:‘.7 Request interface Status Messages.
A? Request AGC status (on or oft).
81? Request BITE. status.
BR? Request results of Remote BITE test.
0! Request a report of Radio Status Messages.
DACn Initiate DAC nest.
DAC'! Request condition of the DAC.
FA? Request a report of all accumulated faults.
FC'! Request a report of all current faults,
FS? Request a fault summary report
G7 Request manual gain status setting.
IS? Request the audio input source.
P0? Request resulm of the most recent POST,
PS7 Request status of the power supply voltages.
PWR? Request the transmitter power output.
R? Request receiver operating parameter status.
SS? Request signal strength in Mode 0.
SSH? Same 3555? except retum value is in units
of V: dB.
SA? Request the audio output level in dBm,
SN? Request the carrier-to- noise measurement.
T? Request the Transmit/receive status.
TN? Request the ﬁequency of the tone generator.
0 CUB IG- GBMMUNICATIDNB
sum-1mm Mun-yum..-
T0? Request the sin-rent transmitter offset
frequency.
“IT? Request the mode 0 transmit timer value.
VF! Request the vector feedback'sfafms.
VPC? Request the vector feedback values for the
current Erequency.
VFON’E Runs the vector feedback calibration
routine on the cur-rent frequency.
VPS? Displays the current power supply
voltages.
A more detailed description of these commands is provided
in chapter 3.
NOTE
when suing the FA? or PC? Radio
Commands the operator can
determine the fault ﬂout able 3-3.
To determine the meaning and the
maintenance action to take in
response to these fault messages,
refer to table 5-2.
5-533 Sim If the ﬁlled subassemhly
moot be isolated using the initial check or mull
idenu'ﬁmtion interpretation, isolsm the failed subassembly
using conventional signal tracing techniques Refer to
chapter 4 for signal flow descriptions.
Signals are checked at various locations in the equipment
using an RF signal generator and oscilloscope (see ﬁgures
F025 and 170-4). Refer to SECTION 54 to pass a signal
through the transceiver for signal tracing. Tables 2-1
through 1-5 lists signals at the rear panel connectors.
®CUBICO COMMUNICATIONS ATC-100 TECHNICAL MANUAL
"mm-m. WWI-mim-
Tbale 5-2 Fault Messages.
Soﬁware error interrupt has
occurred
Aetlon To Take
Divide by zero or other soﬁware
error has occurred. Normally
innocuous and very rare.
If condition recurs, report to CCI factory
engineers.
Use R7 query to identify all operation conditions
at time of error.
1. Recycle powerl
2. if problem persists or recurs, replace RF
Analog board.
‘ Isl. or 2nd L0 PLL out of
lock
Phase Lock Loop (PLL)
malfunctioning.
DSP clock synthesizer PLL
out of lock
Phase Lock Loop (PLL)
malfunctioning.
. Recycle power.
2. lfprobl- persists or recurs, replace RF
Analog board.
Transmit synthesizer PLL out Phase Lock Loop (PLL)
malfunctioning.
l. Recycle power.
2. lfpmblem persists or recurs, replace RF
Analog board.
DSP processor not
responding to requests
Digital Signal Processor or DSP
Clock malfunctioning.
L Recycle Power.
2. If problem persists or recurs, check
49.152 MHz DSP clock:
3. lszd, replace RF Analog board.
h. lfgood, replace Digital board.
EEPROM does not accept
programming
EEPROM faulty. Replace Digital board.
1. Check handshake lines.
2. Check host soﬁwnre.
One of the serial ports has
timed out while msmitting
Hardware handshake has
presented timely transmission of
a message from the transceiver. 3. Try different baud rate.
Serial port overrun error Character receive to fast for Verify that host respects RTS handshake.
transceiver to process.
Serial port purity error Character received with incorrect 1. Check line parameter settings.
‘ parity 2. Chose host line settings.
3. Choose no-parity mode of transmission.
1. Check transceiver line parameter settings.
2, Check hast line parameter settings for
match.
Chamcrer received without
i Serial port framing error
l required stop bin
Issue 1.0 5-5
NFC-100 TECHNICAL MANUAL
5-6 SUBASSEMBLY REMOVAL AND
REPLACEMENT.
The following procedures describe removal and
replacement procedures for subassemblies at the
maintenance operational level:
No internal adjustments (except audio line output) or
component level maintenance should be performed at the
operational level. 111m functions should be performed at
the factory or an authorized repair depot.
Turn 05 power and remove power cord
beﬁne replacing subassetnblies, Personnel
injury or equipment damage may occur.
To remove the top cover, do the following: (Refer to ﬁgure
F0-4 for locations.
Using a no. 2 Phillips screwdriver, push down and turn all
captive fasteners on the cover 1/4 turn counter-clockwise,
and remove the cover.
In the following procedures, to prevent
damage to screw holes in ﬂte chassis,
ensure screws are completely retracted
before pulling the module or board from
the chasisc
Module connectors may be difﬁcult to
separate. Pry gently on m sides of the
connector to assist module removal.
NOTE
When removing subassemblies, save
attaching hardware for subassembly
replacemertt.‘
5-6
QCUBIG-COMMUNICATIONE
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5-6-1 Mum
l.
2.
r‘?‘
9.
Remove top cover.
Disconnect the 4 ribbon cable connectors 12,
13, 15, 4k 17 and the single column wire
connector 11 ﬁrm the board.
Using an Engage/Disengage OSMT Cable
Tool, disconnect coax cablesj'om 18, 19. J] i,
34 J 12.
Disconnect the two coax cable connectors:
a. Disconnect the antenna coax connector
(14) from the board.
h. Disconnect JlO coax connector from the
board.
Using a no. 1 Phillips screw driver remove the
7 screws from the top ofthe board.
Liﬂtheboard outofthe chassis andnnn over.
Using a 5/16 in. wrench, disconnect the 2 coax
cable SMA connectors ﬁom the TX
Synthesizer Module.
Using a no. 1 Phillips screw driver remove 1
screw; that attach the metal plate to the RF
Analog board.
Liﬁ the board from the plate
10. To replace, reverse removal procedures.
5-61 Wat/lodge
1.
2.
4.
Remove the top cover.
Remove the RF Analog Board:
tt Using a no. 1 Phillips screw drivu remove
the 7 screws from the board.
b. Liﬂ the board out of the chassis and turn
over
c. Using a 5/l6 in. wrench, disconnect the 2
coax cable SMA connectors from the TX
Synthesizer Module.
d. Using a no. 1 Phillips screw driver remove
7 screws that attach the metal plate to the
RF Analog board.
e. Liﬁ the board from the plate.
Using a no 1 Phillips screw driver remove 4
screws from the metal plate that are connected
to the TX Synthesizer Module.
To replace. reverse removal procedures.
56.3 W
l.
2.
Remove the top cover.
Remove the RF Analog Board:
1 Using a no. 1 Phillips screw driver remove
the 7 screws from the board.
bu Liﬂ the board out ofthe chassis.
Issue 1.0
QCUBIC- COMMUNIGA‘I’I OMB
Ammanmmmum
5-6.4
5-65
2. Disconnect 4 ribbon cables connectors J L 12,
15, 16 and the dual column wire connector 19
from the Digital Board
3. Using an Engage/Disengage OSMT Cable
Tool, disconnect the coax cable ﬁ-om 17 a 18.
4. Using a 5 mm socket driver, unscrew the 2
lugs ﬁom each of the rear panel‘s 25 pin
female connectors 13 & 14.
When moving board ﬁ'om
chassis ensure that the connectors
13 c 14 donothangup mtherear
panel chassis.
5. Using a no. 1 Phillips screw driver, remove the
screws ﬁ'om the underneath portion of the
chassis that screws to the Digital Board
6. To replace. reverse removal procedures.
Eqﬂr dmglitig Mug;
Remove the top cover.
2. Disconnect the 3 cables GND (14), +28 VDC
(11), c 13.
Disconnect the ribbon cable 12.
4. Disconnect the coax cable E3 ﬁ'ont die RF
Analog board.
5. Remove the RF Analog Board:
a. Using arm. 1 Phillips screw driver remove
the 7 screws from the board.
b. Liﬁ the board out of the chassis and turn
over.
6. On the Power Ampliﬁer Module, locate the
coax cable E4.
7. Using a 5/16 in. wrench, d'uconncct the coax
cable, E4, SMA connector ﬁrm: the TX
Synthesizer Module.
8. Turn the transceiver on its side. Using a no. i
Phillips screw driver, remove the 8 screws
ﬁ'om the bottom of the chassis that secure the
PA Module.
9. Lin the Module out (heat sink & board).
10. To replace, reverse removal procedures
5mm
5“
1. Removethe top cover.
2. Disconnect single column connectors 11 a J2.
3 Turn the mceiver on its side. Using a no. 1
Phillips screw driver. remove the 4 screws
from the bottom of the chassis that secure the
power supply.
Issue 1.0
5-6.6
5-6]
5-63
5-63
ATC-1DD TECHNICAL MANUAL
4. Lit} the power supply up at an angle from the
bracket side.
5. To replace, reverse removal procedurs.
Mama
1. Remove top.
2. Disconnect wire connections 11 thru 14 from
the AC Line Filter Board. ' "’
3. Turn the transceiver on it side. Using a no. 1
Phillips screw driver, remove the 4 screw ﬁ'om
the bottom of the chassis that secure the AC
Line Filler Board.
Lin board from unit.
To replace, reverse moval procedures.
say-
Fil
1. Remove top cover.
2. Using no. 1 Phillips screwdriver remove the 2
screw from the rear panel that secure the
power receptacle to the rear panel.
3. Pull the Receptacle out ﬁom inside the
transceiver and disconnect the 3 wire
connectors ﬁom the rear ot‘the receptacle.
4. To replace, reverse removal procedures.
w' ir ui r r
R-ove top cover.
2. Using a 9/16 in. wrench, remove the nut that
secures the power switch to the outside rear
panel.
3. Pull switch out through the inside of the
chassis.
4. Using a no. 2 Phillips screw driver, move the
2 wires from the rear ofthe power switch.
5. To replace, reverse removal procedures.
MM.
1. Remove top cover.
2. Disconnect the fan cable from the PA Module
13.
3. Using a no. 1 Phillips screw driver and 3/16 in.
wrench, remove 4 screws and attaching
hardware from the fan assra-nbly.
Liﬁ fan from chassis.
To replace, reverse removal procedures.
31-9
Arc-mo TECHNICAL MANUAL
54.10 41mm
l, Starting at the lap of the ﬁller pad cover,
gently lift and pry back.
2. Work the sides and bottom and gently pull
cover off.
mm
The cover is held on by plastic
clips. Excessive pulling may
damage the cover.
3. Liﬂ out ﬁller pad,
4. To replace, reverse removal procedures.
5-6.” mm
l. Remnve top cover.
Using no. 2 Phillips screwdriver, remove 2
screws securing handles to from panel.
NOTE:
To remove the handle near the RF
Analog Board an offset screw
drive: is required. If an offset
screw driver is not available than
perform step 3 £4 4.
58
QCUBIGGQMMUNICATIONB
A WU.- Oﬂu “Ml-Mfume:
3. Remove the RF Analog Board.
3. Using a no. I Phillips screw driver remove
the 7 screws from the board.
b. Liﬁ the board out of the chassis.
4. Using a no. 2 Phillips screw'dﬁver, remove the
lower screw.
5. To replace. reverse removal procedures.
5-7 SOFTWARE UPLOADING.
The transceivers control and DSP soﬁwarc may be
replaned Ming the Maintenance connector 12 on the rear of
the unit to gain iceess to the unit‘s flash memory. The
upload may be done using a DOS—based personal computer
with a serial bus null-modem cable and one of the COMM
pans on the PC.
To upload software no the transceiver control and DSP
processors, refer 00 section 3-1 oflhe manual.
Issue 1.0
QGUBIC-CQMMUNICATIDNB
a meth- c-ue Wham-[me
ATE-100 TECHNICAL MANUAL
CHAPTER 6
PREPARATION FOR RESHIPMENT
6-1 INTRODUCTION.
This chapter contains information to prepare the unit for
reshipment including disassembly and removal from the
rack mount, packaging. and shipping
6-2 DISASSEMBLY AND REMOVAL.
To disassemble and remove the unit from the rack ninum,
perform the follnwing procedures:
I‘ Ensurethepowerissetwoﬂ'.
2. Disconnect the input power cable.
3. Disconnect all cables ﬂ'nm the rear panel.
4. Remove the unit ﬁ'om the rack mount ifused
6-3 PACKAGING.
NOTE
The unit should be packed in the
original shipping container if available.
To package the unit for teshipment perform the following
steps:
1. Ensure that there is sufﬁcient foam packing
material in the shipping container to protect the
unit him any hard impact.
Pl?
l‘:
Issue 1.0
2. Cover the unit with foam or hibile—type packing
material.
3. Place the unit in the center of the shipping
conmineri
4. If using a cardboard packing mu, securely tape
the seams of the canon's top cover, bottom cover,
and side flaps with reinforced packing tape.
5. much labels or stamp in indelible ink the word
FRAGILE on the top, bottom, and all sides of the
container.
6-4 SHIPPING.
mm
Unit contains pans and assemblies
sensitive to damage by electrostatic
discharge (ESD). Do not ship or store
near strong electrostatic, electromag-
netic, magnetic or radioactive ﬁelds.
There are my special shipping requirements for the unit.
Commercial or military surface or air shipping services
may be used.
LEMINARY
6-1I(8-2 blank)
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ATC-ﬂl‘l TECHNICAL MANUAL
CHAPTER 7
STORAGE
7-1 INTRODUCTION.
This chapter contains information for storage of the
equipment including environmenlzl conditions and any
special preservation requirements.
7-2 STORAGE ENVIRONMENT.
The receiver should be stored indoors in the original
shipping conning (or similar container) as described in
chnpter 6. The humidity should be between 40 and 90?-
(non-condensing) with a tempenture range of -20 In
+70°C.
Unit contains pans and assemblies
sensitive to dnmage by elecn'oslau'c
discharge (ESD), Do not shiii Eli-store
near strong eiecwosiatic, electromag-
netiC, magnetic or radioactive ﬁelds.
7-3 PRESERVATION.
There arena specialcoveringsorpteservadon materials
required tn store the receiver.
PRELIMINARY
Issue 1.0
1-1l(7-2 blank)
GCUBIQCDMMUNIGATIDNS NFC-100 TECHNICAL MANUAL
.........y...cum.l......,.4m.
CHAPTER 8
PARTS LIST
8-1 INTRODUCTION. 8-2 REPLACEABLE PART‘SIISTING.
This chapter contains the parts list for replaceable modules Table 8-1 lists replaceable modules and chassis-mounted
and chusis-moumed Compunzuts at the upmﬁona] componcnu forth: unit. (See ﬁgure FO—4 for locations.)
maintenance level.
Table 8-1 Replaceable Parts.
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Board, DC Line Filter 2608-2015- Optional, DC version only C
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Cable Assy, Fan Includes fan C
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Cubic Communications ATC-100 TRANSCEIVER, MODEL ATC-100 User Manual MANUAL

Cubic Communications Inc TRANSCEIVER, MODEL ATC-100 MANUAL

MANUAL

FCC ID Filing: NVSATC-100

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