| GENERAL |
| Type: | Citizen band transceiver |
| Frequency range: | 26.965-27.405 MHz |
| Channels / tuning steps: | 40 |
| Mode: | AM / SSB |
| Frequency control: | PLL (LC7131) |
| Frequency stability: | ±?% |
| Clarifier or Delta tune: | ±800 Hz |
| Power supply: | 13.8 VDC (Male 2-pin jack) |
| Current drain / power consumption: | RX: Less than 1.3 A
TX: Max 2.2 A |
| Antenna impedance / connector: | 50 ohm / SO-239 |
| Dimensions (W*H*D): | 175*48*203 mm (6.89*1.89*7.99") |
| Weight: | 1.4 Kg (3.09 lb) |
| Other features: | PA. ANL/NB. DX/Local button. |
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| RECEIVER SECTION |
| Receiver system: |
Single conversion superheterodyne
1st IF: 10.695 MHz
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| Sensitivity: |
AM: 0.6 uV (12 dB SINAD)
SSB: 0.25 uV (12 dB SINAD)
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| Squelch sensitivity: |
AM
1 uV (Threshold)
500 uV (Tight)
SSB
0.7 uV (Threshold)
500 uV (Tight)
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| Selectivity: |
AM
5 KHz (-6 dB)
20 KHz (-60 dB)
SSB
2 KHz (-6 dB)
10 KHz (-60 dB)
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| Image rejection: | |
| AF output power / speaker: | 2.5 W at ?% distortion / 8 ohm |
| External speaker connector: | TS "Minijack" (3.5 mm), 8-16 ohm |
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| TRANSMITTER SECTION |
| RF output power: |
AM: 4 W (RMS)
SSB: 12 W (PEP)
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| Modulation system: |
AM: High class level B
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| Max AM modulation (Factory set): | ?% |
| Max FM deviation (Factory set): | No FM |
| Spurious emissions: | Better than -? dB |
| Microphone impedance / connector: | ? ohm / 4-pin (Male GX16 locking ring jack) |
| Microphone input level: | ? mV |
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| MISCELLANEOUS |
| Manufactured: | Japan, 198x-198x (Discontinued) |
| Main PCB: |
PTBM146AOX by Cybernet Electronics Corporation
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| Sub PCBs: |
| PTLD098AOX | - LED meter and channel display board |
| PTSW179AOX | - Function buttons board |
| PTSW180AOX | - Channel selector board |
| PTSW181AOX | - Mode switch board |
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| Additional info: | |
| Related documents: |
User manual (832 KB)
AF amplifier: LC7131
AF amplifier: AN7140
RF driver: 2SC1306 or 2SC2166
RF final: 2SC1969 or 2SC2050
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| Known markets and approvals: |
Australia
Approval no. RB 249A034
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| Sams Photofact #: | |
| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
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GB-590
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Base station module with speaker, PSU and clock
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