Futurecom Systems Group ULC CMUHFHP Base station repeater User Manual 8
Futurecom Systems Group ULC. Base station repeater 8
8
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| Document ID | 30068 |
| Application ID | jmI9UuM3jSq172ygLJxe3w== |
| Document Description | 8 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 46.57kB (582113 bits) |
| Date Submitted | 1999-04-01 00:00:00 |
| Date Available | 1999-04-21 00:00:00 |
| Creation Date | 2001-06-26 17:44:20 |
| Producing Software | Acrobat Distiller 4.0 for Windows |
| Document Lastmod | 2001-06-26 17:44:22 |
| Document Title | 8 |
UHF HP
Channel Module Product- Des:
The Channel Module is an RF channel selective repeater. It can be used
in the On Channel Repeater lOCR] or Translator mode. As no baseband
demoduIation/remodulation process takes place within the Channel Module,
signals are amplified with minimal distortion and propagation delays.
Different filtering characteristics and bandwidths can be provided to ensure
compatibility with most types of analog/digital signaling formats and
channel spacing.
When configured in the OCR mode, the input and output frequencies are
the same and a gain of greater than i20 dB can be realized.
- When configured in the
xTronslator mode, with different
input and output frequencies, a
gain of 160 dB is available.
In either mode,
pa l or femdtely from a S'yst
Controller No disasse_mb|y' is
required to perform these adiustmen s, p se pragra
programming information to be entered directly in dEm fa
threshold/output power and‘ in dB for gain Together withth
to monitor RSSI levels, these features minimize the need" E
during system installation and set up
Automatic maximum possible gain set up can be prev ed as a
In conventional system applications CTCSS/DCS decodr
programmed to provide additional protection from interfe n
ensuring only wanted signals are amplified.
The chassis of the Channel Module' is cast aluminum, designed to p
the high levels of internal shielding required for this application A doub
Eurocard format allows five Channel Modules and one Controller Module
to be plugged into a single I9" EIA rackmount card cage that is 10.5II
(é rack units] high.
Additional per channel alarm and monitoring functions are available as
detailed in the following table,
1- FUTULCOM
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3-110 Snow Blvd, Concord, ON Canada [AK 458
Tel. l-800-70l-9l80 or (905) 660-5548 Fax [905] 660-6858
'f'catians CM UHF HP
Frequency of Operation 403-470 MHz
7 Sensitivity -1 I7 dam
Input Carrier Detection Threshold -I TO to -50 dBm
Carrier Detection Threshold Adiustment Step 2 dlm
Carrier Detection Attack Time <2 rns
Maximum Gain Range On-Channel Repeater lock] 70 to 120 dB
(Programmable) Translator 70 to 160 dB
AGC Range 70 d!
AGC Attack Time <1 ms
AGC Decay Time <1 ms
Output Power ‘I W to 20 W
Output Power Tolerance -0dB, 01d!
Duty Cycle 100%
Output Frequency Stability
On-Channel Repeater (OCRl/Translator
Passband Frequency Stability (Internal TCXO}
Modulation Types
Tracks lnpu' Signal Frequency
+/-‘|.5 ppm (+/-0.2 ppm optional)
Narrowband FM Voice and Data
Bandwidth Application Specific
Selectivity Application Specific
Receiver Spurious Response Rejection >70 d!
Receiver lntermodulation >70 dB
Receiver Conducted Spurious Emissions <-57 dBm
Transmitter Conducted Spurious Emissions <-16 dBm and <-40 dB:
Transmitter FM Hum and Noise >43 an
input impedance 50 Ohms
Output Impedance 50 Ohms
input VSWR <1.5:|
Output VSWR <1.5:l
Power Supply Voltage 22 to 23 vnc (13.3 vncr)
Power Supply Current Drain Standby 10.7 A DC
Transmit <3.5 A (<4.5 A')
' max 15 Wantputpnw.
CM UHF HP
SMA Receptacles
90% humidity
Q SD’C (l22°F)
Operating -30 to +60'C
Temperature Range (-22 to +140°Fl
Dimensions 222 x 225 x 75 mm
“374" x 8,56" x 2.95“)
4.09 kg (9 lb)
Mechanical
RF Connectors
Environ mental
Weight
Programming CM UHF HP Alarms/Monitoring
Frequency of Operation
Carrier Detection Threshold
Carrier Detection Timeout
Output Power
Temperature
Syntt lack
DCS/CTCSS
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___——-————-—_—‘
TABLE OF CONTENTS
Page
1.0 Safety Information ........................................................................................................... 1
2.0 General Radio Procedures Operating ...................................................................... 3
3.0 Specification ...................................................................................................................... 4
4.0 Introduction ........................................................................................................................ 5
5.0 Main Features .................................................................................................................... 6
6.0 Block Diagram and Description ................................................................................. 7
6.1 Front End..
6.21ntermediate requency
6.3 Power Amplifier...
6.4 Controller Board .
7.0 Set Up ...........................................................
7.1 Programming Software Installation.
7.2 Channel Module Connections.
7.3 Mode of Operation Setting
7.4 Basics of Gain Setting ..
7.5 Downlink Gain Setting
7.6 Uplink Gain Setting....
8.0 Operation....
8.1 General..
8.2 Transmit Disable.
8.3 Reset .................................................................................
9.0 Programming Options .................................................................................................... 16
10.0 Cleaning Options ........................................................................................................... 17
11.0 Available Options .......................................................................................................... 18
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__—_.—_—-_—_._____....-l
FCC Class A Digital Device or Peripheral - Information to User
QNOTE
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, can cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
QWARNING
Changes or Modifications not expressly approved by Futurecom Systems Group Incl could void
the user’s authority to operate the equipment
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1.0 SAFETY INFORMATION ‘ ’
The following information may or may not be applicable to your product,
In any case, precautions should always be taken when handling any electrical product.
This manual contains important safety and operating instructions, therefore keep this manual
always on hand!
Prior to using any product, follow all warning, safety and operating instructions written on the
product and in the user‘s manual. All instructions should he saved for reference in the
future!
Always keep product dry, never expose to any ldnd of moisture.
Do Not expose product to extreme temperatures- as found near a hot radiator or stove.
Do Not expose product to open flames, cigarettes, etc.
Precautions should be taken to avoid objects falling or liquids spilling onto product.
Do Not incorporate the use of other equipment that is not recommended or sold by the
manufacturer. The result may be the risk of fire or electric shock injury.
Connect DC power cord to DC power source as marked on the product.
DANGER ~ Never alter the AC cord or plug! If plug does not fit outlet have a qualified
electrician install a proper outlet. Failure to do so results in improper connection and increases
the risk of electric shock.
This product does not contain customer serviceable components, therefore never disassemble
the product"
Damage Requiring Service - This product should be serviced by qualified service personnel
when:
The power supply cord or the plug has been damaged; or
Objects have fallen, or liquid has been spilled into die product; or
* The product has been exposed to rain or moisture; or
The product does not appear to operate normally or exhibits a marked change of
perfommnce; or
E. The product has been dropped, or die cabinet damaged.
$70.05?
If an outdoor antenna is connected, make sure the system is always grounded to allow for
protection against voltage surge and built-up static charges. Outdoor antennas should always
be located away from power lines.
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The operator of any mobile radio should be aware of certain hazards common to the
operation of vehicular radio n'ansmissionsl
A list of possible hazards follows:
ll
Explosive Atmospheres
To ensure safety, make sure that the radio is off while fueling the vehicle. When the radio is
mounted in the back of the trunk, never have containers of fuel in the trunk of the vehicle.
Interference to Vehicular Electronics Systems
Typical types of electronic devices that malfunction are Electronic fuel injection systems,
electronic anti-skid braking systems, etc.,,'l'he reason for this is due to the lack of protection
from radio frequency energy present when transmitting. If the vehicle contains such
equipment, consult the dealer of your vehicle and enlist his aid in determining if such
electronic circuits perform normally when the radio is transmitting
Dynamite Blasting Caps
Dynamite blasting caps may be caused to explode by operating a radio within 500 feet of the
blasting caps. Always obey the "Turn Off Two Way Radios" signs posted where dynamite
is being used. When transporting blasting caps in your vehicle:
a. Carry the blasting caps in a closed metal box with a soft lining.
b. ' Leave the radio OFF whenever the blasting caps are being put into or removed from the
vehicle.
Radio Frequency Energy
Do not operate the transmitter when a person is outside of the vehicle within two feet of the
antenna! Failure to heed this wanting may result in bums or related physical injury to the
person.
Liquefied (LP) Gas Powered Vehicles
Mobile radio installations in vehicles powered by liquefied petroleum gas with the LP gas
container in the trunk or other sealed-elf space within the interior of the vehicle must
conform to the National Fire Protection Association standard (NFPA) 58 requiring that:
a. The space containing the radio equipment shall be isolated by a sail fiom the space
containing the LP gas container and its fittings.
b. Outside filling connections shall be used for the LP gas container.
0. The LP gas container shall be vented to the outside of the vehicle.
lMMGXM-M REV. 5
_-—-———___—‘
2.0 GENERAL RADIO OPERATING PROCEDURES
Industry Canada (IC) and the Federal Communications Commission (FCC). rules and
regulations must be incorporated in the use of radio systems. Familiarity with these rules by the
operator is essential for proper execution of the type of radio operation that is in question.
Following these rules helps to eliminate confusion, assures the most efficient use of existing radio
channels, and results in a smoothly functioning radio network. When using this unit remember
these rules:
1.
Emergency calls always have priority over all messages! To interrupt any distress or
emergency message is a violation of the IC and FCC rules. When operating the radio make
sure that the line is clear before sending messages. KEEP OFF THE AIR when an
emergency message is being sent through.
Use of profane or obscene language is prohibited by Federal law.
Sending false call letters, false distress or emergency messages is against the law.
IC and FCC demand that conversations are kept brief and content limited only to business.
Coded messages are encouraged in order to save time.
Only messages that are essential for the business operations are allowed to be sent. Otherwise
using the radio to send personal messages is a direct violation of the IC and FCC rules.
Conversations between others sharing a channel is regarded as confidential Repeating
anything overheard on the radio is against Federal Law.
The [C and FCC requires the operator to transmit station identification at certain times by
means of call letters. Refer to the IC and FCC rules for your station‘s particular type of
operation for the proper procedure.
No changes or adjustments shall be made to the equipment except by an authorized or
certified electronics tecimician.
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3.0 SPECIFICATIONS '
_—
_—— CM 800 HP
_—_
Maximum Gain Range On-Chmnel Repeat!
(OCR) 70 to 17.0 dB
(Pm ; mabIe) Translator 70 m 160 dB
_ um
Oulpul Frequency Subility Tracks Input Signal Frequency
On-Channel Ra - - (er (OCR)/Transhtor
+/-1-5 u'm +1412 --m Mona!)
m_—r-_
Recaivex Inbm'nodumion >65 dB
<-16 63m and <—60 68:
Transmitter 1M Hllm and Noise >43 dB
D -uIm---. cc SUOhrns
- In. VSWR <1511
~-
DC Power Consumption <10W
<65W
. Mun 15W ommwa
—_--fl-——”-
mm
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so'cm
°"”"“‘ -_II W” I
Tanner-mm (almoHO‘F)
R.“
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11.74~ x 8.36" x 7.9
[WE— 4.09 . ; 9mm _
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“—
4.0 INTRODUCTION ‘ '
This manual describes the Futurecom Channel Module (CM). The Channel Module is a
synthesized. microprocessor—based, high performance radio unit. It is designed to increase the
coverage area of an existing radio site by receiving and rebroadcasting from host to user
(downlink). and from user to host (uplink).
The operation of the Channel Module is fully transparent to the user of the host radio system
The Channel Module can be monitored and controlled remotely via digital communication with
the remote system controller or Computer Aided Dispatch (CAD). This provides high level of
radio system reliability.
The exact operation of the Channel Module depends on the operating mode. Most features
described in this manual may be enabled or disabled through programming. The features of the
Channel Module are always selected to suit the particular radio system which it is extending.
The unit has six indicators showing the current operating mode The Channel Module can be
programmed and controlled from the front panel as well.
aMMGXIH-Oi REV. s
—_———_——_———‘
5.0 MAIN FEATURES
The Channel Module is a fully software configurable, synthesized, narrow band device, with 20
Watt output power capability. It is available in VHF, UHF and 800/900MHz bandsi Its purpose
is to receive a single RF channel, amplify and filter the channel signal and re-transmit it.
The Front End (FE) stage receives a single channel off air using double heterodyne principle and
downconverts the signal to an intermediate Frequency (IF) stage. The Intermediate Frequency
performs most of the signal filtering required for a given fi'equency band and channel spacing.
Custom filters are available for customer specific applications. The rigorous filtering allows only
the desired signal (channel) to pass and to be amplified assuring that all undesired signals on other
frequencies are not transmitted. The filtered signal is upconverted to the output frequency and
amplified by the Power Amplifier (PA).
The personality of the unit can be progarm'ned directly from a personal computer via front panel
serial port or from another CM or OCN. The Channel Module software resides in Flash memory
and can be upgraded serially without opening and retesting the unit. Software upgrade/change
can be performed remotely in the same way as personality change.
The clmssis of the Channel Module is made of cast aluminum The rugged construction of the
unit minimizes microphonics and internal feedback. The unit is in standard double Eurocard
format. The installation of the Channel Module is performed by simply plugging it into a 19” rack
mount card cage which is 6 Rack Unit high 005") and connecting RF input and output to SMA
connectors.
The Channel Module is capable of operating in two different modes; either Translator or On
Channel Repeater (OCR). In the Translator mode, the Channel Module transmits on a frequency
which is different from the receive frequency. Cross-band Translators are possible. The
maximum achievable gain in this mode is l60dBi The On Channel Repeater transmits on the
receive frequency making the Channel Module transparent to the user. The maximum achievable
gain in the OCR mode is lZOdB.
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_“__.—___~
6.0 BLOCK DIAGRAM AND DESCRIPTION ‘ ’
The block diagram of the Channel Module is shown in 8DO46AI4 drawing. The Channel Module
consists of four blocks: Front End, Intermediate Frequency, Power Amplifier and Controller
module.
6. 1 FRONT END
Front End starts with a band-pass filter that filters out of band unwanted fiequencies. It is
followed by a low noise amplifier which can be switched in/out of the signal path under software
controL A software 30dB controlled attenuator is next It is used to control input sensitivity and
to lower inter-modulation products for stronger input signals. (Procedure to setup this attenuator
can be found in the following section).
The next two stages consist of 3 Voltage Controlled Oscillator (VCO), mixer, band-pass filter and
an amplifier. These two stages implement double heterodyne down conversion to Intermediate
Frequency of 45.0MHz. Voltage Controlled Oscillator frequencies are based on a common
Temperature Compensated Crystal Oscillator (T m0).
6.2 INTERMEDIATE FREQUENCY
Proper selectivity of the Channel Module is achieved by the Intermediate Frequency stage. The
selectivity is assured by the input filter together with other filters in this stage.
The signal path continues with an Automatic Gain Control Loop (AGC). The Automatic Level
Control Loop maintains a constant signal level irrespective of the input signal level The IF signal
is also used to produce baseband audio signal and provides Received Signal Strength (RSSI)
indication.
The rest of the Intemiediate Frequency section is mainly an up conversion cirmiitry with two
mixers and associated filters. An additional Voltage Controlled Oscillator can be switched into
the last mixer. This VCO can be modulated with audio modulation. It can add a subaudible tone.
The Charmel Module is set up for a Translator mode of operation by programming proper
frequency of this Voltage Controlled Oscillator.
The output from the Intermediate Frequency section is the t'uial output fi'equency.
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6.3 POWER AMPLIFIER '
The Power Amplifier is capable of delivering up to 20W output A band-pass filter filters out of
band unwanted signals The driver and the power amplifier provide the required output power.
The output power level is set under software controL The real output power is compared with
the desired output power level An Automatic Level Control Loop adjusts the real output power
to be precisely equal to die preset level.
An output low-pass filter assures that no unwanted higher harmorurs are present on the output of
the Channel Module.
The reflected power is monitored and the output power is reduced when the reflected power
increases
6.4 CONTROLLER BOARD
The Controller Board controls the operation of the Channel Module It contains the
microcontroller with Flash program and EEPROM personality storage. Communication with the
outside world is facilitated with two RS-232, RS-485 and 12C serial links. One RS-232 port is
accessible via S—pin mini DIN connector on the front panel Eight digital Input/Output lines are
provided for output and outside event monitoring (leg. room or cabinet door opening). Six
analog inputs and four analog outputs are provided as well.
The Controller Board contains D’IMF encoder and low-speed data encoder and decoder.
The front panel reset (RESET) and Transmit Disable (TX DIS) inputs are monitored. These two
inputs are accessed via two front panel holes with a round tool 245mm (0.1”) in diameter. Fumlly,
the front panel indicators are controlled by the Controller Board. These are: Tx disable (TX
DIS), power (DC ON), transmit (TX ON), receive {RX ON), output power fault (PWR) and
VSWR fault (VSWR).
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7.0 SET UP '
7.1 PROGRAMMING SOFTWARE INSTALLATION
Futurecom 6A046XOl Programming Software must be installed on a personal computer which
will be used for the Channel Module field system installation. The personal computer must run
under MS-DOS operating system Software must be installed only once before the first Channel
Module installation.
The following steps must be performed for the Futurecom Channel Module Programming
Software installation:
It
Select the hard disk drive where software will reside, e.g. drive C: Determine 3.5 inch
floppy diskette on your personal computer, e.g. Az.
Switeh to root directory by typing CD\.
Create FU'I‘URCOM subdirectory by typing MD FUTURCOM.
Switch to FUTURCOM directory by typing CD FUTURCOM.
Insert the Futurecom Channel Module Programing Software disk into proper floppy
drive, e.g. drive A, Type COPY A:*.*. "This step copies sofiware into this
. direetory,
7.2 CHANNEL MODULE CONNECTIONS
The Channel Module must be set up in the following way before field system installation:
1.
The Channel Module must be plugged into the Futurecom subrack and supplied with
proper DC power supply for all set up procedures.
Connect the Uplink and Downlink antennas no the Uplink and Downlink Antenna Ports.
. lTum on the DC power supply
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7.3 MODE OF OPERATION SETTING
The procedure to set up the mode of operation for the Channel Module is as follows:
1.
Make sure that the Futurecom Channel Module Programming Software is installed as
described earlier.
Connect the Channel Module as described in Channel Module Connections section and
power it up It is recommended that the donor site transmitter is disabled during
Channel Module settings!
Connect the personal computer to the Channel Module from panel RS—232 connector
with Futurecom CM Serial Programming Cable, part number 7W038X61-Ol.
Select the hard disk drive where the programming software is located. To select e.g.
drive C type C: ‘ Switch to FUTURCOM directory by typing
CD \FUTU'RCOM .
Start the Channel Module Programming Software by typing CM .
Select “Setup" field and then select “RS-ZJZIaccex: type" using cursor keys. Press
. Using cursor keys and , >Page Down> and numeric keypad <->,
<+> select the following settings:
Access to unit Direct
Direct
Baud Rate 9600 b/s
Data Bits 8
Stop Bits 1
Parity NO
Comm. Port COMl or COMZ depending on the personal computer
Baud rate scanning disable
Press .
§
10
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7.4 BASICS OF GAIN SETTING '
The following Steps set the output power and gains in the Channel Module. (Note that setup
must be performed for both the Downlink and the Uplink.)
The basic rule for setting die gain can be summarized as follows:
For OCR Mode (Receiver Frequency equals Transmit Frequency):
The total gain of the Channel Module must always be 155 than isolation between receive
and transmit antennas and cables. In addition, lOdB margin is recommended.
For Translator Mode (Receiver Frequency is different from Transmit frequency):
The total gain of the Channel Module must always be less than
ANTENNA ISOLATION + SPUR LEVEL + lOdB
where
ANTENNA ISOLATION = isolation between receive and transmit antennas
and cables.
SPUR LEVEL = The difference between transmit output power and spurious
of Tx signal on Rx frequency. This difference is typically 70dB.
71 Power
spun LEVEL mes rm
Ikathuofl-ry
The normal setting is such that the gain is lower than the isolation by a 10dB margin. A larger
margin accounts for environmental, aging and other changes in the system
The Channel Module will remain permanently keyed up after first valid transmission if this basic
rule is not followed!
7.5 DOWNLINK GAIN SETTING
Downlink is the direction from the Channel module to a radio unit The downlr'nk settings are
optimized for a maximum transmit power from the Channel Module. Note that the antennas must
be connected for this procedure.
1. Select “Unit" field and then select “Manual Contra!" using cursor keys. Press
. Wait for all the fields to be updated. Movement around the screen is done
using cursor keys. Modification of values in different fields is done with ,
>Page Down> or numeric keypad <->, <+> keys. All fields starting with”?" are
readings.
2. Set the mode of operation in “Rx/Tr Mode" field to OCR or Translator.
5- FUTlRECOM
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9.
Set the frequency of operation in “Rx Ch" field for the OCR mode. Set the frequencies
of operation in "Rx Ch" and "Tx Ch" fields to be equal for the Translator mode. All
frequencies are equal to the Channel Module downlink transmit frequency. Frequencies
can also be entered by typing the number in the given field and pressing ,
Set “FE: Att" between 4 and 8dBt This setting can be higher than SdB.
Set desired output power in “Tx PWR Pat".
Make sure that the donor site is not transmitting!
Key up the Channel Module by setting "P'IT" ON.
Read “own” "?RS The difference between “Tx PWR Pat" and “own" “?RSSI" is
the Antenna Isolau'on.
Unkey the Channel Module by setting “PTT” OFF.
10. Set the “Rx Ch" frequency to be equal to the donor site transmit frequency. Key up the
11.
donor site.
Read “donor” "FRSSI".
If die “donor" "?RSSI" is smaller (let smaller RF level) than the “own" “PRSSI”, the
desired gain cannot be realized and the output power must be lowued and the above
steps must be repeated for the new output power setting.
If the “donor” "7RSSI" is larger than the “own” “.7RSSI", the Channel Module can be
set up. Set "RSSI CAS Th" at least 6dB below “donor" “PRSSI” level and at least 6dB
higher than “own” “?RSSI" level.
7.6 UPLINK GAIN SETTING
Uplink is the direction from the Channel module to the donor base. The uplink settings are
optimized for a maximum sensitivity Le. Front End attenuator should be set to a minimum setting.
l2-. Set the frequencies of operation in "Rx Ch" and "Tx Ch" fields to be equal to donor
receive frequency. Frequencies can also be entered by typing the number in the given
field and pressing . .
13. Set "FE: Art" between 4 and 3dB.This setting should be as small as possible but not
smaller than 4dB.
14. Set desired output power in “Tx PWR Pot“, usually around lW.,
12
mmxm-m REV. s
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[54 Key up the Channel Module by setting “PIT" ON. '
16. Read “own" ".7RSSI". The difference between “Tx PWR Pot" and “own" “.7RSSI” is
the Antenna Isolation.
17. Unkey the Channel Module by setting “P7T” OFF.
18. Set “RSSI CAS Th" at least 6dB higher than “own" “?RSS[" level. The "RSSI CAS
Th" level should be as low as possible for maximum sensitivity.
19. Set correct fi'equencies of operation in the "Rx Ch" and "Tx Ch" fields.
20. Exit “Block Diagram Menu" by pressing . With cursor keys select Yes as an
answer to Exit from CM setup?. Press . Mth cursor keys select Yes as an
answer to Would you like to update the EZPROMR Press .
21. Select “File" field and then select "Exit" using cursor keys. Press . With
cursor keys select Yes as an answer to Exit fi—am program Press .
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