jotron TR6101 User manual

Technical Handbook and
Maintenance Manual
TR6101
VHF Ground to Air Radio
Transceiver
3280 TJODALYNG, NORWAY

JOTRON electronics a.s.
December, 99
Page 2

JOTRON electronics a.s.
December, 99
Page 3
AMENDMENT RECORD
AMDT INCORP.
BY
DATE PAGE(S) AMDT INCORP.
BY
DATE PAGE(S)
1OH 11.9.95 29,45,46,79,80 21
2BJ 25.3.96 92 22
3OH 19.11.96 74 23
4OH 25.9.97 11 24
5ER 20.04.99
EM3215
11 25
6 26
7 27
8 28
9 29
10 30
11 31
12 32
13 33
14 34
15 35
16 36
17 37
18 38
19 39
20 40

JOTRON electronics a.s.
December, 99
Page 4

JOTRON electronics a.s.
December, 99
Page 5
The information in this book is carefully checked and believed to be accurate. However, no
responsibility is assumed for inaccuracies.
CAUTION!
This equipment contains CMOS integrated circuits. Observe handling precautions to avoid
static discharges that may damage these devices.
WARNING!
Some RF semiconductor devices used in this equipment may contain Beryllium Oxide.
If inhaled, dust from this oxide can be toxic.
No danger will arise from normal handling but no attempt should be made to tamper with
these devices. On no account must these transistors be destroyed or discarded with industrial
or domestic waste, but should be returned to the manufacturers for subsequent disposal.
JOTRON electronics a.s reserves the right to make changes without further notice
to any products or modules described herein to improve reliability, function or design.
JOTRON electronic a.s does not assume any liability arising
out of the application or use of the described product.

JOTRON electronics a.s.
December, 99
Page 6

JOTRON electronics a.s.
December, 99
Page 7
TABLE OF CONTENTS
1. TECHNICAL DATA ........................................................................................................................................9
1.1. GENERAL DATA.................................................................................................................................................9
1.2. RECEIVER DATA..............................................................................................................................................10
1.3. TRANSMITTER DATA: ......................................................................................................................................11
2. EXTERNAL CONNECTIONS ...................................................................................................................... 13
2.1. FRONT PANEL COMPONENTS AND CONTROLS ..................................................................................................13
2.2. REAR PANEL CONNECTIONS ............................................................................................................................16
3. INSTALLATION ............................................................................................................................................21
3.1. EQUIPMENT SAFETY PRECAUTIONS .................................................................................................................21
3.2. POWER ON .....................................................................................................................................................21
3.3. CHANGING THE OPERATING FREQUENCY.........................................................................................................22
3.4. SELECTING PRE-PROGRAMMED CHANNELS......................................................................................................22
3.5. PROGRAMMING A CHANNEL............................................................................................................................22
3.6. SQUELCH ON/OFF.........................................................................................................................................22
3.7. KEYING THE TRANSMITTER .............................................................................................................................22
4. INTERNAL ADJUSTMENTS .......................................................................................................................23
4.1. SQUELCH ADJUSTMENT ..........................................................................................................................23
4.2. MODULATION AND POWER ADJUSTMENT .........................................................................................24
5. TECHNICAL DESCRIPTION, TR-6101 .....................................................................................................27
5.1. GENERAL.....................................................................................................................................................27
5.2. POWER SUPPLY / POWER BOARD..........................................................................................................27
5.3. FRONT BOARD............................................................................................................................................28
5.4. LINE INTERFACE BOARD.........................................................................................................................28
5.5. 10W UNIT .....................................................................................................................................................29
5.6. TRANSMITTER UNIT, TR-6201.................................................................................................................30
5.7. RECEIVER UNIT, TR-6201 .........................................................................................................................30
5.8. AUDIO UNIT, TR-6201................................................................................................................................31
5.9. CONTROL UNIT, TR-6201..........................................................................................................................32
5.10. FRONT BOARD, TR-6201 .........................................................................................................................32
6. APPLICATIONS ............................................................................................................................................33
6.1. INTERFACING WITH A REMOTE CONTROL.........................................................................................33
6.2. CONNECTING ONE TRANSCEIVER TO A RC-3104 .............................................................................................35
6.3. CONNECTING TWO TRANSCEIVERS TO A RC-3104...........................................................................................36
6.4. CONNECTING ONE TRANSCEIVER TO A RC-3401 .............................................................................................37
6.5. CONNECTING TWO TRANSCEIVERS TO A RC-3401...........................................................................................38
7. PARTS LISTS .................................................................................................................................................39
8. DRAWINGS ....................................................................................................................................................73

JOTRON electronics a.s.
December, 99
Page 9
1. TECHNICAL DATA
1.1. General data
Frequency range: 118 - 136.975 MHz
Frequency stability: 10 ppm
Channel spacing: 25 kHz
Presetable channels: 8 channels
Modulation: A3 300 to 3000 Hz
Power supply: AC: 115 / 230 V ± 10 %
DC: 24 - 32 V, floating ground.
Power output will be reduced when power supply is
below 26V.
Power consumption: Less than 75 VA at 10W output, 95% modulation.
Environmental conditions :
Operating temperature: 0 to + 55 ª C
Humidity: 90% at 40 ª C without moist.
Shock: (Transport)
IEC-721-3-2, Class 2M3
Vibration: (Transport)
IEC-68-2-32, Class 2M3
IEC-68-2-6
Dimension: 19” standard rack.
405mm (W) * 250mm (D) * 88 mm (H)
Weight: 6,5 kg

JOTRON electronics a.s.
December, 99
Page 10
1.2. Receiver data
Sensitivity: AM: S/N better than 10 dB for an input signal of less than
1 µV pd (-107 dBm), 30%, 1kHz modulation, according to
CCITT.
IF selectivity: Less than 6 dB down at +/- 7,5 kHz
More than 80dB down at +/- 20 kHz
AGC: Less than 3 dB audio variation for input signal levels between
2,0 µV and 250 mV pd.
Intermodulation Two interfering signals of equal amplitude and at least 70 dB
more than the desired signal and at a distance of 100 kHz from
the operating frequency will not generate 3rd order
intermodulation products, at the receiver output, larger than the
desired signal.
Squelch: Internally adjustable between 1 µV and 50 µV, selectable
on/off from front panel.
Hysteresis less than 3 dB.
Audio outputs:
Loudspeaker: Max. 1 W, 10 ohm, adjustable by volume
controls.
Line: Adjustable from -20 to + 10 dBm.
Ri = 600 .
Floating transformer with centre tap.
Distortion: Less than 5% with 70% modulation,
100mV RF input signal.