RF Technology T500A Base station transmitter User Manual Manual T350 Completed

RF Technology Pty Ltd Base station transmitter Manual T350 Completed

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Document Author: GL

Eclipse Ser ies
RF Technology
rfinfo@rftechnology.com.au
August, 1998
T350 / T500 Tr ansmitter
Operation and Maintenance Manual
This manual is produced by RF Technology Pty Ltd
10/8 Leighton Place, Hornsby NSW 2077 Australia
Copyright © 1998 RF Technology
CONTENTS
CONTENTS
Contents
Oper ating Instr uctions
1.1
Fr ont Panel Contr ols and Indicator s
1.1.1
PTT
1.1.2
Line
1.1.3
PWR LED
1.1.4
TX LED
1.1.5
ALARM LED
Tr ansmitter Inter nal J umper Options
2.1
JP2: EPROM type
2.2
JP3: Dc Loop PTT
2.3
JP4: Audio Input Source
2.4
JP6: Input Level Attenuation
2.5
JP7: Audio Response
2.6
JP8: Sub-audible Tone source
2.7
JP9/10/11: dc Loop Configuration
Tr ansmitter I/O Connections
3.1
25 Pin Connector
Channel and Tone Fr equency Pr ogr amming
Cir cuit Descr iption
5.1
VCO Section
5.2
PLL Section
5.3
Power Amplifier
5.4
600Ω line Input
5.5
Direct Coupled Audio Input
5.6
Local Microphone Input
5.7
CTCSS and Tone Filter
5.8
Audio Signal Processing
5.9
PTT and DC Remote Control
5.10 Micro-processor Controller
5.11 Voltage Regulator
10
10
11
11
11
11
12
12
13
13
Field
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
13
14
14
14
15
15
16
16
16
Page 2
Alignment Pr ocedur e
Standard Test Conditions
VCO Alignment
TCXO Calibration
Modulation Balance
Tone Deviation
Deviation
Line Input Level
Output Power
RF Technology T350/T500
CONTENTS
CONTENTS
Specifications
7.1
Over all Descr iption
7.1.1
Channel Capacity
7.1.2
CTCSS
7.1.3
Channel Programming
7.1.4
Channel Selection
7.1.5
Micro-processor
17
17
17
17
17
17
18
7.2
Physical Configur ation
18
7.3
Fr ont Panel Contr ols, Indicator s and Test Points
7.3.1
Controls
7.3.2
Indicators
7.3.3
Test Points
18
18
18
19
7.4
Electr ical Specifications
7.4.1
Power Requirements
7.4.2
Frequency Range and Channel Spacing
7.4.3
Frequency Synthesizer Step Size
7.4.4
Frequency Stability
7.4.5
Number of Channels
7.4.6
Antenna Impedance
7.4.7
Output Power
7.4.8
Transmit Duty Cycle
7.4.9
Spurious and Harmonics
7.4.10
Carrier and Modulation Attack Time
7.4.11
Modulation
7.4.12
Distortion
7.4.13
Residual Modulation and Noise
7.4.14
600Ω Line Input Sensitivity
7.4.15
HI-Z Input
7.4.16
Test Microphone Input
7.4.17
External Tone Input
7.4.18
External ALC Input
7.4.19
T/R Relay Driver
7.4.20
Channel Select Input / Output
7.4.21
DC Remote Keying
7.4.22
Programmable No-Tone Period
7.4.23
Firmware Timers
7.4.24
CTCSS
19
19
19
19
19
19
19
19
20
20
20
20
20
20
20
20
21
21
21
21
21
21
22
22
22
7.5
Connector s
7.5.1
Antenna Connector
7.5.2
Power and I/O Connector
7.5.3
Test Connector
22
22
24
24
RF Technology T350/T500
Page 3
CONTENTS
CONTENTS
Engineer ing Diagr ams
A.1 Block Diagram
A.2 Circuit Diagrams
A.3 Component Overlay Diagrams
24
24
24
25
Par ts List
26
Page 4
RF Technology T350/T500
1
OPERATING INSTRUCTIONS
WARNING
Changes or modifications not expressly approved by
RF Technology could void your authority to operate this
equipment. Specifications may vary from those given in
this document in accordance with requirements of local
authorities. RF Technology equipment is subject to
continual improvement and RF Technology reserves the
right to change performance and specification without
further notice.
Oper ating Instr uctions
1.1
Fr ont Panel Contr ols and Indicator s
1.1.1
PTT
A front-panel push-to-talk (PTT) button is provided to facilitate bench and field tests
and adjustments. The button is a momentary action type. When keyed, audio from the
line input is disabled so that a carrier with sub-tone is transmitted. The front-panel
microphone input is not enabled in this mode, but it is enabled when the PTT line on
that socket is pulled to ground.
1.1.2
Line
The LINE trimpot is accessible by means of a small screwdriver from the front panel of
the module. It is used to set the correct sensitivity of the line and direct audio inputs. It
is factory preset to give 60% of rated deviation with an input of 0dBm (1mW on 600Ω
equivalent to 775mV RMS or about 2.2V peak-to-peak) at 1kHz. The nominal 60%
deviation level may be adjusted by measuring between pins 6 and 1 on the test socket,
and adjusting the pot. By this means an input sensitivity from approximately -30dBm to
+10dBm may be established.
An internal jumper provides a coarse adjustment step of 20dB. Between the jumper and
the trimpot, a wide range of input levels may be accommodated.
RF Technology T350/T500
Page 5
1.1 Front Panel Controls and Indicators
LED Flash Cadence
5 flashes, pause
4 flashes, pause
3 flashes, pause
2 flashes, pause
1 flash, pause
LED ON continuously
1 OPERATING INSTRUCTIONS
Fault Condition
Synthesizer unlocked
Tuning voltage out of range
Low forward power
High reverse (reflected) power
Low dc supply voltage
Transmitter timed out
Table 1: Inter pr etations of LED flash cadence
Indication
Flashing, 8 per second
Flashing, 4 per second
Flashing, 2 per second
Flashing, 1 per second
Continuous
Fault Condition
Synthesizer unlocked
Tuning voltage outside correct range
Low forward power
High reverse power
dc supply voltage low or high
Table 2: Inter pr etations of LED flash speed, for ear ly models
1.1.3
POWER LED
The PWR LED shows that the dc supply is connected to the receiver.
1.1.4
TX LED
The TX LED illuminates when the transmitter is keyed. It will not illuminate (and an
Alarm cadence will be shown) if the synthesizer becomes unlocked, or the output
amplifier supply is interrupted by the microprocessor.
1.1.5
ALARM LED
The Alarm LED can indicate several fault conditions if they are detected by the self test
program. The alarm indicator shows the highest priority fault present. Receivers using
software issue 5 and higher use the cadence of the LED flash sequence to indicate the
alarm condition. Refer to table 1. Receivers using software issue 4 and lower use the
LED flash rate to indicate the alarm condition. Refer to table 2.
Page 6
RF Technology T350/T500
2
TRANSMITTER INTERNAL JUMPER OPTIONS
Tr ansmitter Inter nal J umper Options
In the following subsections an asterisk (*) signifies the standard (Ex-Factory)
configuration of a jumper.
2.1
J P2: EPROM Type
Condition
27C256
27C64
Position
2-3 *
1-2
2.2 J P3: Dc Loop PTT
This jumper enables or disables the keying of the PTT function by means of a dc signal
passed down the 600Ω line input pair. When enabled, JP9-JP11 control how the dc
signal is configured with respect to an internal opto-coupler.
Condition
dc loop connected (enabled)
dc loop not connected (bypassed)
2.3
Position
1-2 *
2-3
J P4: Audio Input Sour ce
Either the 600Ω or the high-Z balanced inputs may be selected.
Condition
600Ω Input
High-impedance Input
2.4
Position
2-3 *
1-2
J P6: Input Level Attenuation
This jumper permits coarse input sensitivity to be set.
Condition
0dB attenuation
20dB attenuation
Position
1-2 *
2-3
RF Technology T350/T500
Page 7
2.5 JP7: Audio Response
2.5
J P7: Audio Response
Condition
750 uSec. pre-emphasis
Flat response
2.6
Position
1-2 *
2-3
J P8: Sub-audible Tone Sour ce
Condition
Internal CTCSS
External input
2.7
4 CHANNEL AND TONE FREQUENCY PROGRAMMING
Position
1-2, 4-5 *
2-3, 5-6
J P9/10/11: dc Loop Configur ation
These settings are only relevant when the PTT signal is to be used across the same wires
as the audio. Refer to setting of JP3. They control the levels and connection into the
audio balanced line circuitry.
Condition
Current Loop Input
12Vdc Loop source
3.1
J P9
ON
OFF
J P10
OFF
ON
J P11
OFF *
ON
Tr ansmitter I/O Connections
25 Pin Connector
The D-shell 25 pin connector is the main interface to the transmitter. The pin
connections are described in table 3.
Channel and Tone Fr equency Pr ogr amming
Channel and tone frequency programming is most easily accomplished with RF
Technology TecHelp software or the Service Monitor 2000 software. This software can
be run on an IBM compatible PC and provides a number of additional useful facilities.
DOS and 32-bit versions are available.
TecHelp allows setting of the adaptive noise squelch threshold, provides a simple means
of calibrating the forward and reverse power detectors, setting the power alarm preset
levels, and enabling transmitter hang time and timeout time limits. TecHelp can be
supplied by your dealer, distributor or by contacting RF Technology directly.
Page 8
RF Technology T350/T500
4 CHANNEL AND TONE FREQUENCY PROGRAMMING
Function
dc power
Channel Select
RS232 Data
600Ω Line
Signal
+12 Vdc
-12 Vdc
10
20
40
80
In
Out
High
Low
150Ω / Hybrid
Direct PTT input
T/R Relay driver output
Sub-Audible Tone Input
High-Z Audio Input
External ALC input
Pins
1, 14
13, 25
21
22
10
23
11
24
12
15
20
19
16
18
17
Specification
+11.4 to 16 Vdc
BCD Coded
0 = Open Circuit
or 0 Vdc
1 = +5 to +16 Vdc
Test and Programming use
9600, 8 data 2 stop bits
Transformer Isolated
Balanced 0dBm Output
Ground to key PTT
Open collector,250mA/30V
>10kΩ, AC coupled
(1-250Hz)
>10kΩ, AC coupled
(10Hz-3kHz)
<0.5V/1mA to obtain
>30dB attenuation, O/C
for maximum power
Table 3: Pin connections and explanations for the main 25-pin, D connector .
Cir cuit Descr iption
The following descriptions should be read as an aid to understanding the block and
schematic diagrams given in the appendix of this manual.
5.1
VCO Section
The Voltage Controlled Oscillator uses a junction FET which oscillates at the required
transmitter output frequency. A varactor diode is used by the PLL circuit to keep the
oscillator on the desired frequency. Transistor Q20 is used as an active filter to reduce
the noise on the oscillator supply voltage. The VCO is keyed ON by the
microcontroller through Q10. It is keyed ON when any of the PTT inputs are active and
OFF at all other times.
RF Technology T350/T500
Page 9
5 CIRCUIT DESCRIPTION
The VCO output is amplified and buffered by monolithic amplifiers MA2 and MA3
before being fed to the PLL IC U6.
Amplifiers MA1, MA4 and MA5 increase the VCO output to approximately 4 mW to
drive the power amplifier. MA1 is not switched on until the PLL has locked and had
time to settle. This prevents any momentary off channel transmission when the
transmitter is keyed.
5.2
PLL Section
Temperature compensated crystal oscillator XO1 is the frequency reference source for
the PLL Synthesizer. The frequency stability of XO1 is better than 1 ppm and it can be
synchronized to an external reference for improved stability. External reference option
board 11/9119 is required when using an external reference.
XO1 is frequency modulated by the processed transmit audio signal from U7b. This
extends the modulation capability down to a few Hz for sub-audible tones and digital
squelch codes. A two point modulation scheme is used with the audio also being fed to
the VCO to modulate the higher audio frequencies.
The 12.8 MHz output of XO1 is amplified by Q22 to drive the reference input of the
PLL synthesizer IC U6. This IC is a single chip synthesizer which includes a 1.1 GHz
pre-scaler, programmable divider, reference divider and phase/frequency detector. The
frequency data for U6 is supplied through serial data link by the microprocessor.
The phase detector output signals of U6 are used to control two switched current
sources. The output of the positive and negative sources (Q3 and Q6) produces the
tuning voltage which is smoothed by the loop filter components to bias the VCO
varactor diode D3.
5.3
Power Amplifier
The 4 mW output from the main board connects to the power amplifier board through a
short miniature 5Ω coaxial cable.
Q2 on the power amplifier board increases the signal to approximately 200 mW. The
bias current of Q2 is controlled by Q1 and the power leveling circuitry to adjust the
drive to the output module U2.
U2 increases the power to 10-30 watts (depending upon options) before it is fed to the
directional coupler, low pass filter and output connector. The directional coupler
detects the forward and reverse power components and provides proportional dc
voltages which are amplified by U1a and U1b. The forward and reverse voltages from
U1a and U1b are compared to the DC reference voltage from RV1. The difference is
amplified by U1c, Q3 and Q4.
Page 10
RF Technology T350/T500
5 CIRCUIT DESCRIPTION
5.3 Power Amplifier
The resulting control voltage supplies Q2 through R10, R12 and completes the power
leveling control loop.
5.4
600Ω Line Input
The 600Ω balanced line input connects to line isolation transformer T1. T1 has two
150Ω primary windings which are normally connected in series for 600Ω lines. The
dual primary windings can be used to provide DC loop PTT signaling or a 2/4 wire
hybrid connection. All four leads are available at the rear panel system connector.
The secondary of T1 can be terminated with an internal 600Ω load through JP5 or left
un-terminated in high impedance applications.
5.5
Dir ect Coupled Audio Input
A high impedance (10kΩ) direct AC coupled input is available at the system connector.
The direct coupled input connects to U9a which is configured as a unity gain bridge
amplifier.
The bridge configuration allows audio signal inversion by interchanging the positive
and negative inputs and minimizes ground loop problems. Both inputs should be
connected, with one lead going to the source output pin and the other connected to the
source audio ground.
5.6
Local Micr ophone Input
The local microphone input is provided for use with a standard low impedance dynamic
microphone. The microphone output is amplified by U9a before connecting to analogue
switch U10a. U10b inverts the local microphone PTT input to switch U10a ON when
the microphone PTT button is pressed. U10a is OFF at all other times.
The local microphone audio has priority over the other inputs. Activation of the local
microphone PTT input switches OFF the audio from the line or direct inputs through
D16 and U10c.
5.7
CTCSS and Tone Filter
The CTCSS encoder module H1, under control of the main microprocessor U13, can
encode all 38 EIA tones and (on some models) additional commonly-used tones.
The tone output of H1 connects to jumper JP8 which is used to select either H1 or an
external tone source. The selected source is coupled to U9c which is a balanced input
unity gain amplifier. The buffered tone from U9c is fed to 300 Hz low pass filter U7c.
RV3, the tone deviation trimmer, is used to adjust the level of the tone
RF Technology T350/T500
Page 11
5.8 Audio Signal Processing
5 CIRCUIT DESCRIPTION
from U7c before it is combined with the voice audio signal in the summing amplifier
U7a.
Back to back diodes D4 and D5 limit the maximum tone signal amplitude to prevent
excessive tone deviation when external tone sources are used.
5.8
Audio Signal Pr ocessing
Jumper JP4 selects either the line or direct input source. The selected source is then
connected to JP6. JP6 can be removed to provide 20 dB attenuation when the input
level is above 10 dBm to expand the useful range of the line level trimmer RV4. The
wiper of RV4 is coupled to the input of the input amplifier U9d. U9d provides a
voltage gain of ten before connecting to the input of analogue switch U10c.
The outputs of U10a and U10c are connected to the frequency response shaping
networks C52, R133 (for 750µs pre-emphasis) and C61, R55 (for flat response). JP7
selects the pre-emphasized or flat response.
The audio signal is further amplified 100 times by U7d. U7d also provides the
symmetrical clipping required to limit the maximum deviation. The output level from
U7d is adjusted by RV1, the deviation adjustment, before being combined with the tone
audio signal in the summing amplifier U7a.
The composite audio from U7a is fed through the 3Khz low pass filter U7b. The
filtered audio is coupled to the TCXO voltage tuning input and the modulation balance
trimmer RV2.
RV2 adjusts level of the audio used to modulate the VCO. This primarily effects the
deviation of audio frequencies above 500 Hz. RV2 is used to balance the high and low
frequency deviation to obtain a flat frequency response relative to the desired
characteristic.
5.9
PTT and DC Remote Contr ol
Two main PTT inputs are provided. The first, a direct logic level input, is connected to
pin 3 of the system connector. The transmitter can be keyed by applying a logic low or
ground on pin 3. Pin 3 connects to the PTT logic and microprocessor through D10.
DC current loop control can be used for remote PTT operation. The current loop can be
configured by JP9, JP10 and JP11 for use with either a remote free switch or a remote
switched source.
Opto-isolator ISO1 is used to isolate the loop current signal from the transmitter PTT
logic. The loop current passes through the input of ISO1 and the output of ISO1
connects to the PTT logic.
Page 12
RF Technology T350/T500
5
CIRCUIT DESCRIPTION
5.10 Microprocessor Controller
A bridge consisting of diodes D6, D8, D9 and D14 ensures correct operation regardless
of the current polarity. Q17 limits the current and D7 limits the voltage input to ISO1.
Any low voltage current source capable of providing 2 mA at 4 V or switching circuit
with less than 4.8kΩ loop resistance can be used to switch the DC loop.
The test PTT button on the front panel and the local microphone PTT button will also
key the transmitter. Both of these also mute the line audio input. The microphone line
also enables that audio input.
5.10
Micr opr ocessor Contr oller
The microprocessor controller circuit uses a single-chip eight bit processor and several
support chips. The processor U13 includes non-volatile EE memory for channel
frequencies, tones, and other information. It also has an asynchronous serial port, a
synchronous serial port and an eight bit analogue to digital converter.
The program is stored in U5, a CMOS EPROM. U4 is an address latch for the low order
address bits. U2 is used to read the channel select lines onto the data bus. U11 is an
address decoder for U5 and U2. U3 is a supervisory chip which keeps the processor
reset unless the +5 Volt supply is within operating limits. U1 translates the
asynchronous serial port data to standard RS232 levels.
The analogue to digital converter is used to measure the forward and reverse power,
tuning voltage and dc supply voltage.
The processor keys the VCO through Q10, switches the 9.2 Volt transmit line through
Q14 and Q16, and the alarm LED D1 through Q1.
5.11
Voltage Regulator
The dc input voltage is regulated down to 9.4 Vdc by a discrete regulator circuit. The
series pass transistor Q23 is driven by error amplifiers Q8 and Q18. Q9 is used to start
up the regulator and once the circuit turns on, it plays no further part in the operation.
The +5 Volt supply for the logic circuits is provided by an integrated circuit regulator
U14 which is run from the regulated 9.4 Volt supply.
Field Alignment Pr ocedur e
The procedures given below may be used to align the transmitter in the field. Normally,
alignment is only required when changing operating frequencies, or after component
replacement.
RF Technology T350/T500
Page 13
6
FIELD ALIGNMENT PROCEDURE
6.1 Standard Test Condition
The procedures below do not constitute an exhaustive test or a complete alignment of
the module, but if successfully carried out are adequate in most circumstances.
TCXO calibration may be periodically required owing to normal quartz crystal aging. A
drift of 1ppm/year is to be expected.
Each alignment phase assumes that the preceding phase has been successfully carried
out, or at least that the module is already in properly aligned state with respect to
preceding conditions.
6.1
Standar d Test Condition
The following equipment and conditions are assumed unless stated otherwise:
•
AF signal generator with 600Ω impedance, 150-3000Hz frequency range, with level
set to 387mV RMS.
•
Power supply set to 13.8Vdc, with a current capable of >5A.
•
RF 50Ω load, 30W rated, return loss <-20dB.
•
Jumpers set to factory default positions.
6.2
VCO Alignment
1. Select a channel at the center frequency (half way between the highest and lowest
frequencies for the model in question).
2. Disconnect the Audio input (no signal input).
3. Key the PTT line.
4. Measure the voltage between pins 9 and 1 of the test socket (TUNE V), and adjust
C99 to obtain 4.5±0.25V, while the TX LED is ON and the ALARM LED is OFF.
6.3
TCXO Calibr ation
1. Select a channel at the center frequency (half way between the highest and lowest
frequencies for the model in question).
2. Disconnect the Audio input (no signal input).
3. Key the PTT line.
Page 14
RF Technology T350/T500
6.4 Modulation Balance
4.
6.4
6 FIELD ALIGNMENT PROCEDURE
Measure the carrier frequency at the output connector, and adjust XO1 until the
correct carrier frequency is measured, ±50Hz.
Modulation Balance
1.
Set RV3 fully counter clockwise (CCW) (sub-tone off).
2.
Set RV1 fully clockwise (CW) (maximum deviation)
3.
Set RV2 mid-position
4.
Set JP7 for flat response
5.
Key the transmitter on
6.
Set the audio input to 150Hz, 0dBm.
7.
Measure deviation and adjust RV4 (line Level) for a deviation of 5kHz (2.5kHz
for narrow band transmitters).
8.
Set the audio input to 1.5kHz, 0dBm.
9.
Adjust RV2 (Mod. Bal.) for a deviation of 5kHz (2.5kHz for narrow band
transmitters).
10.
Repeat steps 6-9 until balance is achieved.
11.
Key the transmitter off.
12.
Return JP7 to its correct setting.
13.
Carry out the Deviation (section 6.6) and Tone Deviation (section 6.5) alignment
procedures.
6.5
Tone Deviation
1.
Remove the audio input.
2.
Key the transmitter on.
3.
Adjust RV3 for the desired deviation in the range 0-1kHz.1
(CTCSS) coding is not to be used, adjust RV3 fully CCW.
If sub-tone
____________________
The factory default is 500Hz for wide band (5kHz maximum deviation) and 250Hz for narrow band
channels.
RF Technology T350/T500
Page 15
6
FIELD ALIGNMENT PROCEDURE
6.6
6.6 Deviation
Deviation
1.
Set RV4 (Line Level) fully clockwise (CW).
2.
Set the audio to 1kHz, 0dBm, on the line input.
3.
Key the transmitter on..
4.
Adjust RV1 (Set Max. Deviation) for a deviation of 5kHz (2.5kHz for narrow
band transmitters).
5.
Key the transmitter off.
6.
Carry out the Line Input Level alignment procedure (section 6.7)
6.7
Line Input Level
1.
Set the audio to 1kHz, 0dBm, on the line input, or use the actual signal to be
transmitted.
2.
Key the transmitter on.
3.
Adjust RV4 (line level) for 60% of system deviation (3kHz or 1.5kHz for narrow
band systems).
4.
If the test signal is varying, RV4 may be adjusted to produce a level of 234mV
RMS or 660mVp-p at the audio voltage test connector pin 6 to pin 1.
5.
Key the transmitter off.
6.8
Output Power
1.
No audio input is required
2.
Key the transmitter on.
3.
Adjust RV1 on the power amplifier PCB for the desired power level at the output
connector. 2
4.
Key the transmitter off.
____________________
Be sure to set the power below the rated maximum for the model of transmitter. If in doubt, allow
1.5dB cable and connector losses, and assume that the maximum rated power is 15W. This means no
more than 10W at the end of a 1m length of test cable. This pessimistic procedure is safe on all models
manufactured at the time of writing.
Page 16
RF Technology T350/T500
7 SPECIFICATIONS
7.1
SPECIFICATIONS
Over all Descr iption
The transmitter is a frequency synthesized, narrow band FM unit, normally used to
drive a 50 watt amplifier. It can also be used alone in lower power applications.
Various models allow 2-25W of output power to be set across a number of UHF
frequency bands. All necessary control and 600Ω line interface circuitry is included.
7.1.1
Channel Capacity
Although most applications are single channel, it can be programmed for up to 100
channels, numbered 0 - 99. This is to provide the capability of programming all
channels into all of the transmitters used at a given site. Where this facility is used in
conjunction with channel-setting in the rack, exciter modules may be “hot-jockeyed” or
used interchangeably. This can be convenient in maintenance situations.
7.1.2
CTCSS
Full EIA sub-tone capability is built into the modules. The CTCSS tone can be
programmed for each channel. This means that each channel number can represent a
unique RF and tone frequency combination.
7.1.3
Channel Pr ogr amming
The channel information is stored in non-volatile memory and can be programmed via
the front panel test connector using a PC and RF Technology software.
7.1.4
Channel Selection
Channel selection is by eight channel select lines. These are available through the rear
panel connector. Internal presetting is also possible. The default (open-circuit) state is to
select channel 00.
A BCD active high code applied to the lines selects the required channel. This can be
supplied by pre-wiring the rack connector so that each rack position is dedicated to a
fixed channel. Alternatively, thumb-wheel switch panels are available.
RF Technology T350/T500
Page 17
7
SPECIFICATIONS
7.1.5 Microprocessor
7.1.5. Micr opr ocessor
A microprocessor is used to control the synthesizer, tone squelch, PTT function and
facilitate channel frequency programming. With the standard software, RF Technology
modules also provide fault monitoring and reporting.
7.2
Physical Configur ation
The transmitter is designed to fit in a 19 inch rack mounted sub-frame. The installed
height is 4 RU (178 mm) and the depth is 350 mm. The transmitter is 63.5 mm or two
Eclipse modules wide.
7.3
Fr ont Panel Contr ols, Indicator s, and Test Points
7.3.1
Contr ols
Transmitter Key - Momentary Contact Push Button
Line Input Level - screwdriver adjust multi-turn pot
7.3.2
Indicator s
Power ON - Green LED
Tx Indicator - Yellow LED
Fault Indicator - Flashing Red LED
External ALC - Green LED
External Reference - Green LED
7.3.3
Test Points
Line Input - 6 + Ground (pin 1)
Forward Power - 8 + Ground (pin 1)
Reverse Power - 4 + Ground (pin 1)
Tuning Voltage - 9 + Ground (pin 1)
Serial Data (RS-232) – 2 / 3 + Ground (pin 1)
Page 18
RF Technology T350/T500
7 SPECIFICATIONS
7.4 Electrical Specifications
7.4
7.4.1
Electr ical Specifications
Power Requir ements
Operating Voltage - 10.5 to 16 Vdc with output power reduced below 12 Vdc
Current Drain - 5A Maximum, typically 0.25A Standby
Polarity - Negative Ground
7.4.2
Fr equency Range and Channel Spacing
Fr equency
330-365 MHz
360-380 MHz
375-400 MHz
403-420 MHz
430-450 MHz
450-520 MHz
7.4.3
25 kHz
T350C
T350A
T350B
T500A
T500D
T500B
12.5 kHz
T350CN
T350AN
T350BN
T500AN
T500DN
T500BN
Fr equency Synthesizer Step Size
Step size is 10 / 12.5kHz or 5 / 6.25kHz, fixed, depending upon model
7.4.4
Fr equency Stability
±1 ppm over 0 to +60 C, standard
±1ppm over -20 to +60 C, optional
7.4.5
Number of Channels
100, numbered 00 - 99
7.4.6
Antenna Impedance
50Ω
7.4.7
Output power
Preset for 2-15 or 2-25W depending upon model
RF Technology T350/T500
Page 19
7
SPECIFICATIONS
7.4.8
7.4.8 Transmit Duty Cycle
Tr ansmit Duty Cycle
100% to 40C, de-rating to zero at 60C.
100% to 5000ft altitude, de-rating to zero at 15,000ft.
7.4.9
Spur ious and Har monics
Less than 0.25µW
7.4.10
Car r ier and Modulation Attack Time
Less than 20ms. Certain models have RF envelope attack and decay times controlled in
the range 200µs< tr/f <2ms according to regulatory requirements.
7.4.11 Modulation
Type - Two point direct FM with optional pre-emphasis
Frequency Response - ±1 dB of the selected characteristic from 300 - 3000 Hz
Maximum Deviation - Maximum deviation preset to 2.5 or 5 kHz
7.4.12
Distor tion
Modulation distortion is less than 3% at 1 kHz and 60% of rated system deviation.
7.4.13
Residual Modulation and Noise
The residual modulation and noise in the range 300 - 3000 Hz is typically less than 50dB referenced to rated system deviation.
7.4.14 600Ω Line Input Sensitivity
Adjustable from -30 to +10 dBm for rated deviation
7.4.15 HI-Z Input
Impedance - 10KΩ Nominal, balanced input
Input Level - 25mV to 1V RMS
Page 20
RF Technology T350/T500
7.4.16 Test Microphone Input
7 SPECIFICATIONS
7.4.16 Test Micr ophone Input
200Ω dynamic, with PTT
7.4.17
Exter nal Tone Input
Compatible with R500 tone output
7.4.18
Exter nal ALC Input
Output will be reduced 20dB by pulling the input down to below 1V. (Typically more
than 40dB attenuation is available.) The input impedance is ≅10kΩ, internally pulled
up to rail.
The external ALC input can be connected to the power control circuit in Eclipse
external power amplifiers.
7.4.19 T/R Relay Dr iver
An open collector transistor output is provided to operate an antenna change over relay
or solid state switch. The transistor can sink up to 250mA.
7.4.20 Channel Select Input / Output
Coding - 8 lines, BCD coded 00 - 99
Logic Input Levels - Low for <1.5V, High for >3.5V
Internal 10K pull down resistors select channel 00 when all inputs are O/C.
7.4.21
DC Remote Keying
An opto-coupler input is provided to enable dc loop keying over balanced lines or local
connections. The circuit can be connected to operate through the 600Ω line or through
a separate isolated pair.
RF Technology T350/T500
Page 21
7
SPECIFICATIONS
7.4.22
7.4.22 Programmable No-Tone Period
Pr ogr ammable No-Tone Per iod
A No-Tone period can be appended to the end of each transmission to aid in eliminating
squelch tail noise which may be heard in mobiles with slow turn off decoders. The NoTone period can be set from 0--5 seconds in 0.1 second increments. The No Tone
period operates in addition to the reverse phase burst at the end of each transmission.3
7.4.23
Fir mwar e Timer s
The controller firmware includes some programmable timer functions.
Repeater Hang Time - A short delay or ``Hang Time'' can be programmed to be added
to the end of transmissions. This is usually used in talk through repeater applications to
prevent the repeater from dropping out between mobile transmissions. The Hang Time
can be individually set on each channel for 0 - 15 seconds.
Time Out Timer - A time-out or transmission time limit can be programmed to
automatically turn the transmitter off. The time limit can be set from 0-254 minutes
in increments of one minute. The timer is automatically reset when the PTT input is
released.
7.4.24
CTCSS
CTCSS tones can be provided by an internal encoder or by an external source connected
to the external tone input. The internal CTCSS encoding is provided by a subassembly
PCB module. This provides programmable encoding of all EIA tones.
Some models encode certain extra tones.
Tone frequencies are given in table 4.
7.5
7.5.1
Connector s
Antenna Connector
Type N Female Mounted on the module rear panel
The reverse phase burst is usually sufficient to eliminate squelch tail noise in higher-quality mobiles
Page 22
RF Technology T350/T500
7 SPECIFICATIONS
Fr equency
No Tone
67.0
69.4
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
159.8
162.2
165.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
210.7
218.1
225.7
229.1
233.6
241.8
250.3
254.1
EIA Number
RF Technology T350/T500
A1
B1
C1
A2
C2
B2
C3
A3
C4
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8
A9
B9
A10
B10
A11
B11
A12
B12
A13
B13
A14
B14
A15
B15
A16
B16
A17
Table 4: Tone Squelch Fr equencies
Page 23
A
ENGINEERING DIAGRAMS
7.5.2
Power & I/O Connector
25-pin “D” Male Mounted on the rear panel
7.5.3
Test Connector
9-pin “D” Female mounted on the front panel
Engineer ing Diagr ams
Most Eclipse transmitter modules contain two PCBs, a motherboard with the control
and signal generation circuitry (the exciter board), and an RF Power Amplifier board.
Certain models are equipped with optional functions on piggyback PCBs atop the
exciter motherboard. The exciter PCB typically has a few components whose values
vary from model to model depending upon operating frequency and local regulatory
constraints. The RF PA PCB varies from model to model but to a greater extent. At
least two different PCB layouts, and numerous variations, exist. This manual presents
the circuits and parts lists for two representative variants. When ordering spare parts be
sure to specify the model exactly, in case the part you require is different in value from
that specified in this manual.
Older models (predating this manual) may not be covered by this manual. However,
advances are evolutionary, and the information in this manual will be sufficient in most
cases to permit understanding and servicing of all models, past and present.
Versions of more detailed circuit schematics, printed on A3 paper, may be inserted or
bound with this manual towards the end. It is sometimes easier to work with these foldout diagrams because of their larger format. In case the inserts / fold-outs are missing
or damaged, the reader is advised that information in the figures included with the text
should be identical.
A.1
Block Diagr am
Figure 1 shows the block signal flow diagram.
A.2
Cir cuit Diagr ams
Figure 2 shows the detailed circuit diagram with component numbers and values for the
main (exciter) PCB. Figure 3 shows the detailed circuit diagram with component
numbers and values for the higher-power PA variation. Figure 4 shows the detailed
circuit diagram with component numbers and values for the lower-power PA variation.
Page 24
RF Technology T350/T500
A ENGINEERING DIAGRAMS
A.3
Component Over lay Diagr ams
Figure 5 shows the PCB overlay guide with component positions for the main (exciter)
PCB. Figure 6 shows the detailed circuit diagram with component numbers and values
for the higher-power PA variation. Figure 7 shows the detailed circuit diagram with
component numbers and values for the lower power PA variation.
RF Technology T350/T500
Page 25
A ENGINEERING DIAGRAMS_________________A.3 Component Overlay Diagrams
Figure 1: The block circuit diagram
Page 26
RF Technology T350/T500
A.3 Component Overlay Diagrams_________
A ENGINEERING DIAGRAMS
Figure 2: The main board component overlay diagram.
RF Technology T350/T500
Page 27
A ENGINEEERING DIAGRAMS
A.3 Component Overlay Diagrams
Figure 3: The component circuit diagram of the 9103 UHF Transmitter.
Page 28
RF Technology T350/T500
This Page Is Blank Intentionally
RF Technology T350/T500
Page 29
A ENGINEEERING DIAGRAMS
A.3 Component Overlay Diagrams
Figure 4: The component circuit diagram of the 9102 UHF PA.
Page 30
RF Technology T350/T500
A.3 Component Overlay Diagrams
A ENGINEERING DIAGRAMS
Figure 5: The component circuit diagram of the 9128/9149 UHF PA.
RF Technology T350/T500
Page 31
A ENGINEERING DIAGRAMS
A.3 Component Overlay Diagrams
Figure 6: The component overlay diagram for the higher-power PA board.
Page 32
RF Technology T350/T500
A.3 Component Overlay Diagrams
A ENGINEERING DIAGRAMS
Figure 7: The component overlay diagram for the lower-power PA board
RF Technology T350/T500
Page 33
B PARTS LIST
T350/T500 Parts List
T350/T500 Parts List (for PCB-30/9103/xxxx)
Main PCB Assembly Par ts
Ref.
Descr iption
Par t Number
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C44
C45
C46
C47s
C48
C49
C50
C51
C52
C53
C54
C55
Capacitor 10U 35V Rad Electro
Capacitor 18P 2% 100V NPO Rad.1
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 10U 35V Rad Electro
Capacitor 47N 20% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 3P3 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 2P7 5% 63V NP0 SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor, 6.8U SMD Tantalum
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 2U2 10% 100V MKT Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 1UO 10% 63V MKT Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 100N 5% 50V MKT Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 22N 5% 63V MKT Rad.2
Capacitor 100N 5% 50V MKT Rad.2
Capacitor 1N2 5% NPO Rad.2
Capacitor 1N5 10% 50V COG Rad.2
Capacitor 1U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 10N 10% 63V X7R SM1206
41/2001/010U
45/2680/018P
46/2001/100N
46/2001/010N
46/3300/01N0
46/3300/01N0
46/3300/01N0
46/3300/01N0
46/3300/01N0
46/3300/01N0
41/2001/010U
46/2001/047N
46/3300/01N0
46/3300/01N0
46/2001/010N
46/2001/010N
46/2001/010N
46/3300/01N0
46/2001/100N
46/3300/01N0
46/3310/100N
46/3300/03P3
46/3300/01N0
46/3300/02P7
46/3300/01N0
42/3009/06U8
46/3300/01N0
46/2000/01N0
46/3300/01N0
46/2001/100N
47/2010/02U2
41/2001/010U
47/2007/01U0
46/2000/01N0
46/2000/01N0
41/2001/010U
46/2000/01N0
41/2001/010U
46/2000/01N0
46/2000/01N0
47/2007/100N
46/2001/100N
46/2000/01N0
46/2001/010N
46/2000/01N0
46/2001/010N
46/3300/01N0
46/2001/100N
47/2010/022N
47/2007/100N
46/2000/01N2
46/2000/01N5
41/2001/001U
41/2001/010U
46/3310/010N
Page 34
RF Technology T350/T500
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
C56
C57
C58
C59s
C60
C61
C62
C63
C64s
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C76
C77
C78
C79
C80
C81
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
C95
C96
C97
C98
C99
C100
C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
C113
Capacitor 1N2 5% NPO Rad.2
Capacitor 100N 5% 50V MKT Rad.2
Capacitor 22N 5% 63V MKT Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1UO 10% 63V MKT Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 470U 25V RB Electro
Capacitor 470U 25V RB Electro
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 18P 2% 100V NPO Rad.1
Capacitor 10U 35V Rad Electro
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 100N 10% 63V X7R 1206
Capacitor 10P 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 10P 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 1P8 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1P8 5% 63V NPO SM1206
Capacitor Trim 5-25P
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 10N 10% 63V X7R 1206
Capacitor 47N 20% 50V X7R Rad.2
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 47N 20% 50V X7R Rad.2
Capacitor 1UO 10% 63V MKT Rad.2
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 47P 2% 100V NPO Rad.1
Capacitor 100N 10% 63V X7R 1206
Capacitor 100U 25V RB Electro
Capacitor 1UO 10% 63V MKT Rad.2
46/2000/01N2
47/2007/100N
47/2010/022N
46/3300/01N0
47/2007/01U0
46/2001/100N
46/2001/100N
41/2001/010U
46/3300/01N0
46/2000/01N0
46/2001/100N
46/2001/100N
41/2001/470U
41/2001/470U
41/2001/010U
41/2001/010U
41/2001/010U
41/2001/010U
41/2001/010U
46/2000/01N0
46/2000/01N0
46/2001/100N
46/2001/100N
46/2001/100N
41/2001/010U
45/2680/018P
41/2001/010U
46/2001/010N
46/2001/010N
46/2001/010N
46/2001/010N
46/3310/100N
46/3300/010P
46/3310/100N
46/3300/010P
46/3310/100N
46/3300/01N0
46/3310/100N
46/3300/01P8
46/3310/100N
46/3300/01N0
46/3300/01N0
46/3300/01P8
49/3002/025P
46/3300/01N0
46/3300/01N0
46/3310/010N
46/2001/047N
46/2001/100N
46/3300/01N0
46/3310/100N
46/2001/047N
47/2007/01U0
46/2001/010N
45/2680/047P
46/3310/100N
41/1025/100U
47/2007/01U0
RF Technology T350/T500
Page 35
B T350/T500 PARTS LIST
Ref.
C114
C115
C116
C117
C118
C119
C132
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25(L9)
H1
ISO1
J1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP11
JP13
JP14
JP15
L1
L2
L3
L4
L5
L6
L7
L8
L10
L11
L12
L13
Page 36
Descr iption
Capacitor 1UO 10% 63V MKT Rad.2
Capacitor 100U 25V RB Electro
Capacitor 1UO 10% 63V MKT Rad.2
Capacitor 100U 25V RB Electro
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 10N 10% 50V X7R Rad.2
Diode LED Red T1 3/4
Diode 3Amplifier 1KV Rectifier
Diode VCapacitor MMBV105G SOT23
Diode Silicon 1N4148
Diode Silicon 1N4148
Diode Silicon GP
Diode Zen 1N4751 30V 1W AXIAL
Diode Silicon GP
Diode Silicon GP
Diode Silicon 1N4148
Diode Silicon 1N4148
Diode LED Yellow T1 3/4
Diode Silicon 1N4148
Diode Silicon GP
Diode Silicon 1N4148
Diode Silicon 1N4148
Diode Silicon 1N4148
Diode LED Green T1 3/4
Diode Schottkey BAT17 SOT23
Diode 8V2 Zener
Diode LED Green T1 3/4
Diode LED Green T1 3/4
Diode Silicon 1N4148
Diode Zen 1N4751 30V 1W AXIAL
SMD Diode, 100ma 50v
Hybred CTCSS
IC Opto-Isolator 4N33
Connector Coax SKT SMB Vertical PCB
Connector 3Way Header
Connector 3Way Header
Connector 3Way Header
Connector 3Way Header
Connector 3Way Header
Connector 3Way Header
Connector 6Way Header
Connector 2Way Header
Connector 2Way Header
Connector 2Way Header
Connector 2Way Header
Connector 16Way Shr'd Header
Connector 10Way Header
Ferrite Bead SMD
Inductor 1uH Axial
Ferrite Bead SMD
Ferrite Bead SMD
Inductor 150mH 10RBH
Inductor 220N 10% Choke SM1206
Ferrite Bead SMD
Ferrite Bead SMD
Inductor 6 Hole Ferrite RFC
Inductor 220N 10% Choke SM1206
Inductor 220N 10% Choke SM1206
Inductor 220N 10% Choke SM1206
Par t Number
47/2007/01U0
41/1025/100U
47/2007/01U0
41/1025/100U
41/2001/010U
41/2001/010U
46/2001/010N
21/1010/LEDR
21/1080/5408
21/3060/105G
21/1010/4148
21/1010/4148
21/1010/4002
21/1040/4751
21/1010/4002
21/1010/4002
21/1010/4148
21/1010/4148
21/1010/LEDY
21/1010/4148
21/1010/4002
21/1010/4148
21/1010/4148
21/1010/4148
21/1010/LEDG
21/3030/0017
21/1040/B8V2
21/1010/LEDG
21/1010/LEDG
21/1010/4148
21/1040/4751
21/3009/AS85
13/9150/0002
25/1010/4N33
35/2004/0001
35/2501/0003
35/2501/0003
35/2501/0003
35/2501/0003
35/2501/0003
35/2501/0003
35/2501/0006
35/2501/0002
35/2501/0002
35/2501/0002
35/2501/0002
35/2502/0016
35/2501/0010
37/3321/LM31
37/2021/001U
37/3321/LM31
37/3321/LM31
37/2021/1RBH
37/3320/220N
37/3321/LM31
37/3321/LM31
37/1021/0001
37/3320/220N
37/3320/220N
37/3320/220N
RF Technology T350/T500
B T350/T500 PARTS LIST
Ref.
Descr iption
L14
MA1
MA2
MA3
MA4
MA5
P1
P3
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
Q18
Q19
Q20
Q21
Q22
Q23
Q24
Q25
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
Inductor 220N 10% Choke SM1206
Amplifier MMIC MWA0311L SOT143
Amplifier MMIC MWA0311L SOT143
Amplifier MMIC MWA0311L SOT143
Amplifier MMIC VAM-6 SOT143
Amplifier MMIC MWA0311L SOT143
Filter D RT AGL 9W F Ferrite
Filter D RT AGL 25W M Ferrite
Transistor GP NPN MMBT3904 SOT23
Transistor GP NPN MMBT3904 SOT23
Transistor GP PNP MMBT3906 SOT23
Fast Switching SMD Transistor
Transistor GP NPN MMBT3904 SOT23
Transistor GP NPN MMBT3904 SOT23
Transistor GP PNP MMBT3906 SOT23
Transistor GP NPN MMBT3904 SOT23
SMD FET NJ MMBF5459LT1 SOT23
Transistor GP NPN MMBT2369 SOT23
Transistor GP NPN MMBT2369 SOT23
Transistor GP PNP MMBT3906 SOT23
Transistor GP NPN MMBT3904 SOT23
Transistor GP NPN MMBT3904 SOT23
Transistor GP NPN MMBT3904 SOT23
Transistor GP PNP MMBT3906 SOT23
SMD FET NJ MMBF5459LT1 SOT23
Transistor GP NPN MMBT3904 SOT23
FET NJ MMBFJ309 SOT23
Transistor GP NPN MMBT3904 SOT23
Fast Switching SMD Transistor
Transistor GP NPN MMBT2369 SOT23
Transistor PNP MJF6107 TO22O
Transistor GP PNP MMBT3906 SOT23
Transistor NPN GP MPSA06 TO92
Resistor 5K11 1% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 100 5% 0.25W SM1206
Resistor 100 5% 0.25W SM1206
Resistor 100 5% 0.25W SM1206
Resistor 15R 5% 0.25W SM1206
Resistor 68 5% 0.25W Axial
Resistor 3K3 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 680 5% 0.25W Axial
Resistor 6K8 5% 0.25W Axial
Resistor 680 5% 0.25W Axial
Resistor 270 5% 0.25W SM1206
Resistor 10K 5% 0.25W Axial
Resistor 47K 5% 0.25W Axial
Resistor 1M0 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 330 5% 0.25W Axial
Resistor 330 5% 0.25W Axial
Resistor 18K 5% 0.25W Axial
Resistor 10K0 1% 0.25W Axial
RF Technology T350/T500
Par t Number
37/3320/220N
24/3010/0311
24/3010/0311
24/3010/0311
24/3010/VAM6
24/3010/0311
35/5012/009F
35/5012/025M
27/3020/3904
27/3020/3904
27/3010/3906
27/3010/5771
27/3020/3904
27/3020/3904
27/3010/3906
27/3020/3904
27/3020/5459
27/3020/2369
27/3010/2369
27/3010/3906
27/3020/3904
27/3020/3904
27/3020/3904
27/3010/3906
27/3020/5459
27/3020/3904
27/3030/J309
27/3020/3904
27/3010/5771
27/3020/2369
27/2010/6107
27/3010/3906
27/2010/PA06
51/1010/5K11
51/1040/04K7
51/3380/0100
51/3380/0100
51/3380/0100
51/3380/0015
51/1040/0068
51/1040/03K3
51/1040/01K0
51/1040/01K0
51/1040/01K0
51/1040/01K0
51/1040/01K0
51/1040/0680
51/1040/06K8
51/1040/0680
51/3380/0270
51/1040/010K
51/1040/047K
51/1040/01M0
51/1040/010K
51/1040/010K
51/1040/010K
51/1040/0330
51/1040/0330
51/1040/018K
51/1010/010K
Page 37
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
R51
R52
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R81
R82
R83
R84
R85
R86
Resistor 10K 5% 0.25W Axial
Resistor 2K2 5% 0.25W Axial
Resistor 470K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 5K11 1% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 91K 5% 0.25W Axial
Resistor 22 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 2K2 5% 0.25W Axial
Resistor 100 5% 0.25W SM1206
Resistor 100K 5% 0.25W Axial
Resistor 6K8 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 64K9 1% 0.25W Axial
Resistor 64K9 1% 0.25W Axial
Resistor 7K50 1% 0.25W Axial
Resistor 1M0 5% 0.25W Axial
Resistor 10K 5% 0.25W SM1206
Resistor 10K 5% 0.25W SM1206
Resistor 7K50 1% 0.25W Axial
Resistor 10K0 1% 0.25W Axial
Resistor 91K 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 91K 5% 0.25W Axial
Resistor 64K9 1% 0.25W Axial
Resistor 64K9 1% 0.25W Axial
Resistor 1K2 5% 0.25W Axial
Resistor 1K2 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 390 5% 0.25W Axial
Resistor 47K 5% 0.25W Axial
Resistor 47K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 680 5% 0.25W Axial
Resistor 1K 5% 0.25W Axial
Resistor 680 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 47 5% 0.25W Axial
Resistor 10M 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 6K49 1% 0.25W Axial
Resistor 28K7 1% 0.25W Axial
Resistor 5K11 1% 0.25W Axial
Resistor 5K11 1% 0.25W Axial
Resistor 5K11 1% 0.25W Axial
Resistor 5K11 1% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 2K2 5% 0.25W Axial
Resistor 680 5% 0.25W Axial
51/1040/010K
51/1040/02K2
51/1040/470K
51/1040/010K
51/1040/010K
51/1040/010K
51/1040/100K
51/1040/100K
51/1010/5K11
51/1040/010K
51/1040/091K
51/1040/0022
51/1040/04K7
51/1040/02K2
51/3380/0100
51/1040/100K
51/1040/06K8
51/1040/010K
51/1040/010K
51/1010/64K9
51/1010/64K9
51/1010/07K5
51/1040/01M0
51/3380/010K
51/3380/010K
51/1010/07K5
51/1010/010K
51/1040/091K
51/1040/100K
51/1040/091K
51/1010/64K9
51/1010/64K9
51/1040/01K2
51/1040/01K2
51/1040/010K
51/1040/04K7
51/1040/0390
51/1040/047K
51/1040/047K
51/1040/010K
51/1040/0680
51/1040/01K0
51/1040/0680
51/1040/04K7
51/1040/0047
51/1040/010M
51/1040/04K7
51/1040/04K7
51/1040/010K
51/1040/01K0
51/1010/6K49
51/1010/28K7
51/1010/5K11
51/1010/5K11
51/1010/5K11
51/1010/5K11
51/1040/100K
51/1040/02K2
51/1040/0680
Page 38
RF Technology T350/T500
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
R87
R88
R89
R90
R91
R92
R93
R94
R95
R96
R97
R98
R99
R100
R101
R102
R103
R104
R105
R106
R107
R108
R109
R110
R111
R112
R113
R114
R115
R116
R117
R119
R120
R121
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
R134
R135
R136
R137
R138
R139
R140
R141
R142
RN1
RN2
RV1
RV2
RV3
RV4
Resistor 2K2 5% 0.25W SM1206
Resistor 1K0 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 180 5% 0.25W Axial
Resistor 100 5% 0.25W SM1206
Resistor 180 5% 0.25W SM1206
Resistor 270R 5% 0.25W SM1206
Resistor 1K8 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 15R 5% 0.25W SM1206
Resistor 470R 5% 0.25W SM1206
Resistor 47R 5% 0.25W SM1206
Resistor 10K 5% 0.25W SM1206
Resistor 47R 5% 0.25W SM1206
Resistor 4K32 1% 0.25W Axial
Resistor 4K32 1% 0.25W Axial
Resistor 4K32 1% 0.25W Axial
Resistor 470K 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 560 5% 0.25W Axial
Resistor 3K3 5% 0.25W Axial
Resistor 560 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 100 5% 0.25W Axial
Resistor 2K2 5% 0.25W Axial
Resistor 220K 5% 0.25W Axial
Resistor 68 5% 0.25W Axial
Resistor 47K 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 22 5% O.25W Axial
Resistor 220 5% 0.25W Axial
Resistor 120K 5% 0.25W Axial
Resistor 150K 5% 0.25W Axial
Resistor 150K 5% 0.25W Axial
Resistor 680K 5% 0.25W Axial
Resistor 680K 5% 0.25W Axial
Resistor 470K 5% 0.25W Axial
Resistor 560K 5% 0.25W Axial
Resistor 470K 5% 0.25W Axial
Resistor 470 5% 0.25W SM1206
Resistor 47R 5% 0.25W SM1206
Resistor 47R 5% 0.25W SM1206
Resistor 510K 5% 0.25W Axial
Resistor 270 5% 0.25W Axial
Resistor 470 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 22K 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 10R 5% 0.25W Axial
Resistor 470K 5% 0.25W SM1206
Resistor Pack 100K X8 DIP16
Resistor Pack 10K SIP10
Trimpot 10K 1 Turn Vertical
Trimpot 10K 1 Turn Vertical
Trimpot 10K 1 Turn Vertical
Trimpot 10K Multi-turn Horizontal
51/3380/02K2
51/1040/01K0
51/1040/010K
51/1040/0180
51/3380/0100
51/3380/0180
51/3380/0270
51/1040/01K8
51/1040/01K0
51/3380/0015
51/3380/0470
51/3380/0047
51/3380/010K
51/3380/0047
51/1010/4K32
51/1010/4K32
51/1010/4K32
51/1040/470K
51/1040/01K0
51/1040/0560
51/1040/03K3
51/1040/0560
51/1040/01K0
51/1040/0100
51/1040/02K2
51/1040/220K
51/1040/0068
51/1040/047K
51/1040/01K0
51/1040/010K
51/1040/01K0
51/1040/0022
51/1040/0220
51/1040/120K
51/1040/150K
51/1040/150K
51/1040/680K
51/1040/680K
51/1040/470K
51/1040/560K
51/1040/470K
51/3380/0470
51/3380/0047
51/3380/0047
51/1040/510K
51/1040/0270
51/1040/0470
51/1040/01K0
51/1040/010K
51/1040/022K
51/1040/04K7
51/1040/100K
51/1040/0010
51/3380/470K
52/2002/100K
52/2002/010K
53/1020/010K
53/1020/010K
53/1020/010K
53/2060/010K
RF Technology T350/T500
Page 39
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
S1
T1
U1
U2
U3
U4
U5
U6
U7
U8
U9
U10
U11
U13
U14
XO1
Y1
Y2
Switch PSH BTN SPDT & Capacitor
Transformer Line 600 Ohm
IC RS232 Inter MAX232C
IC 3 State BUF 74HC244N
IC Micro Super MC34064P-5
IC 8 Bit Latch 74HC573N
IC EPROM 27C256
IC Frequency SYN MB1501 SO16X
IC Quad OP Amplifier TLC274
IC Dual FET OP Amplifier DIP8
IC Quad OP Amplifier TLC274
IC Analogue Gate MC14066B
IC Quad NAND 74C00 DIP14
IC Micro 68HC11A1P
IC Volt Regulator LM7805
TCXO 12.8 MHz O91/143-2
Crystal 8.0 MHz
Crystal 4.0 MHz
31/0005/E121
37/2040/5065
26/2001/232C
26/2030/244N
26/2000/064P
26/2030/C573
26/2090/C256
26/2000/1501
25/2050/274C
25/1050/272C
25/2050/274C
26/2040/4066
26/2031/4C00
26/2000/HC11
25/2040/7805
32/2030/12.8
32/2049/08M0
32/2049/04M0
Coaxial Resonator (CR1) Listing for T350 – T500
Model
Par t #
T350A
T350B
T350C
12/0001/T350
12/0001/T350
12/0001/T330
T500A
T500B
12/0001/T400
12/0001/T450
Power Amplifier Assembly (for PCB 30/9149)
These par ts common to all Amplifier s on T350 / T500
Ref.
Descr iption
Par t Number
C1
C2
C4
C5
C6
C7
C12
C13
C14
C15
C16
C17
C18
C20
C21
C23
C24
C25
C26
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 56P 5% 63V NPO SM1206
Capacitor 27P 2% 100V NPO Rad.1
Capacitor 10N 10% 50V X7R Rad.2
Capacitor 27P 2% 100V NPO Rad.1
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 10U 35V Rad Electro
Capacitor 10U 35V Rad Electro
Capacitor 22N 5% 63V MKT Rad.2
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 100P 5% 63V NPO 1206
Capacitor 100P 5% 63V NPO 1206
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 10U 35V Rad Electro
Capacitor 27P 2% 100V NPO Rad.1
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 27P 2% 100V NPO Rad.1
Capacitor 10P 5% 63V NPO SM1206
Capacitor 10P 5% 63V NPO SM1206
46/3300/01N0
46/3300/056P
45/2680/027P
46/2001/010N
45/2680/027P
46/2000/01N0
41/2001/010U
41/2001/010U
47/2010/022N
46/2000/01N0
46/3300/100P
46/3300/100P
46/3300/01N0
41/2001/010U
45/2680/027P
46/2000/01N0
45/2680/027P
46/3300/010P
46/3300/010P
Page 40
RF Technology T350/T500
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
D1
D2
D3
D4
D5
J2
L5
L6
L7
L8
P1
Q2
Q3
Q4
Q5
Q6
Q7
R1
R2
R3
R4
R5
R6
R7
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
Capacitor 100N 10% 63V X7R 1206
Capacitor 100N 10% 63V X7R 1206
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 63V NPO SM1206
Capacitor 100N 10% 50V X7R Rad.2
Capacitor 100N 10% 63V X7R 1206
Capacitor 10U 35V Rad Electro
Capacitor 1N0 5% 100V NPO Rad.2
Capacitor 22N 5% 63V MKT Rad.2
Capacitor 27P 2% 100V NPO Rad.1
Diode Schottkey BAT17 SOT23
Diode Schottkey BAT17 SOT23
Diode Silicon 1N4148
Diode Silicon 1N4148
Diode Silicon 1N4148
Connector Coax SMB PCB Horizontal
Inductor 1U0 10% Choke SM1008
Inductor 6 Hole Ferrite RFC
Inductor 6 Hole Ferrite RFC
Inductor 6 Hole Ferrite RFC
Connector 16 Way Horizontal Shr'd Header
Transistor RF NPN MRF5812 SO8
Transistor GP PNP MPSW5 11A,A TO92
Transistor GP NPN 2N3904 TO92
Transistor ZTX751 ZETEX TO92
Transistor GP NPN 2N3904 TO92
Transistor GP NPN 2N3904 TO92
Resistor 220 5% 0.25W SM1206
Resistor 100K 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 100R 5% 0.25W Axial
Resistor 220 5% 0.25W SM1206
Resistor 15K 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 4R7 5% 0.25W Axial
Resistor 1K 5% 0.25W Axial
Resistor 22 5% 0.25W Axial
Resistor 470 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 470 5% 0.25W Axial
Resistor 470 5% 0.25W SM1206
Resistor 5K6 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 100K 5% 0.25W Axial
Resistor 100 5% 0.25W Axial
Resistor 47K 5% 0.25W Axial
Resistor 1K0 5% 0.25W Axial
Resistor 47K 5% 0.25W SM1206
Resistor 47K 5% 0.25W SM1206
Resistor 220R 5% 0.25W SM1206
Resistor 220R 5% 0.25W SM1206
Resistor 100K 5% 0.25W Axial
Resistor 1M0 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 680R 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 10K 5% 0.25W Axial
Resistor 4K7 5% 0.25W Axial
Resistor 1M0 5% 0.25W Axial
46/3310/100N
46/3310/100N
41/2001/010U
46/3300/01N0
46/2001/100N
46/3310/100N
41/2001/010U
46/2000/01N0
47/2010/022N
45/2680/027P
21/3030/0017
21/3030/0017
21/1010/4148
21/1010/4148
21/1010/4148
35/2001/0001
37/3320/01U0
37/1021/0001
37/1021/0001
37/1021/0001
35/2503/0016
27/3020/5812
27/2010/PW51
27/2020/3904
27/2010/X751
27/2020/3904
27/2020/3904
51/3380/0220
51/1040/100K
51/1040/100K
51/1040/0100
51/3380/0220
51/1040/015K
51/1040/100K
51/1040/04R7
51/1040/01K0
51/1040/0022
51/1040/0470
51/1040/010K
51/1040/0470
51/3380/0470
51/1040/05K6
51/1040/01K0
51/1040/100K
51/1040/0100
51/1040/047K
51/1040/01K0
51/3380/047K
51/3380/047K
51/3380/0220
51/3380/0220
51/1040/100K
51/1040/01M0
51/1040/04K7
51/1040/010K
51/1040/0680
51/1040/010K
51/1040/010K
51/1040/04K7
51/1040/01M0
RF Technology T350/T500
Page 41
B T350/T500 PARTS LIST
Ref.
Descr iption
Par t Number
R36
R37
R38
R39
RV1
RV2
U1
Resistor 47K 5% 0.25W Axial
Resistor 15K 5% 0.25W Axial
Resistor 4R7 5% 0.25W Axial
Capacitor 2P2 5% 63V NPO 1206
Trimpot 10K 1 Turn Vertical
Trimpot 10K 1 Turn Vertical
IC Quad OP Amplifier MC3403P
51/1040/047K
51/1040/015K
51/1040/04R7
46/3300/02P2
53/1020/010K
53/1020/010K
25/1050/3403
Additional par ts for Amplifier s in all T350’s
Ref.
Descr iption
Par t Number
L1
L2
L3
L4
C3
C8
C9
C10*
C11
C37
Inductor Moulded 3.5 Turn
Inductor Moulded 3.5 Turn
Inductor Moulded 3.5 Turn
Inductor Moulded 3.5 Turn
Capacitor 10P 5% 63V NPO SM1206
Capacitor 4P5 5% 250V Silver Mica
Capacitor 13P 5% 250V Silver Mica
Capacitor 13P 5% 250V MC Mica
Capacitor 4P5 5% 250V Silver Mica
Capacitor 22P 5% 63V NPO SM1206
37/2021/0003
37/2021/0003
37/2021/0003
37/2021/0003
46/3300/010P
48/3003/04P5
48/3003/013P
48/3002/013P
48/3003/04P5
46/3300/022P
*C10 is omitted from T350D
Additional par ts for Amplifier s in all T500’s
Ref.
Descr iption
Par t Number
L1
L2
L3
L4
C3
C8
C9
C10
C11
C37
Inductor Moulded 2.5 Turn
Inductor Moulded 2.5 Turn
Inductor Moulded 2.5 Turn
Inductor Moulded 1.5 Turn
Capacitor 4P7 5% 63V NPO SM1206
Capacitor 3P 5% 250V Silver Mica
Capacitor 10P 5% 250V Silver Mica
Capacitor 10P 5% 250V MC Mica
Capacitor 3P 5% 250V Silver Mica
Capacitor 6P8 5% 63V NPO SM1206
37/2021/0002
37/2021/0002
37/2021/0002
37/2021/0001
46/3300/04P7
48/3003/003P
48/3003/010P
48/3002/010P
48/3003/003P
46/3300/06P8
RF Power Module Listing for all Amplifier s
Model
Fr equency
RF Power Module
T350A
T350B
T350C
T350D
360 – 380 MHz
375 – 400 MHz
330 – 365 MHz
300 – 330 MHz
18/M577/29SL
18/M577/29UL
18/M577/29EL
18/M577/29GL
T500A
T500B
T500B
400 – 430 MHz
430 – 500 MHz
465 – 510 MHz
18/M577/088L
18/M577/88UH
18/M577/88SH
Page 42
RF Technology T350/T500

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Title                           : Manual T350-Completed
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