| GENERAL |
| Type: | Citizen band transceiver |
| Frequency range: | 26.965-27.405 MHz |
| Channels / tuning steps: | 40 |
| Mode: | AM / SSB |
| Frequency control: | PLL (Early: MB8719 - Later: uPD2824C) |
| Frequency stability: | 0.003% |
| Clarifier or Delta tune: | ±1.25 KHz |
| Power supply: | 13.8 VDC (Male 3-pin jack) |
| Current drain / power consumption: | RX: ? mA
TX: ? A |
| Antenna impedance / connector: | 50 ohm / SO-239 |
| Dimensions (W*H*D): | 184*57*235 mm (7.25*2.25*9.25") |
| Weight: | 1.81 Kg (4 lb) |
| Other features: | PA. ANL/NB. Dimmer. Mic gain on the original microphone. |
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| RECEIVER SECTION |
| Receiver system: |
Single conversion superheterodyne
IF: 7.8 MHz (Early) - 10.695 MHz (Later)
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| Sensitivity: |
AM: 0.5 uV (10 dB S+N/N)
SSB: 0.25 uV (10 dB S+N/N)
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| Squelch sensitivity: |
AM: 0.5 uV (Threshold)
SSB: 0.2 uV (Threshold)
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| Selectivity: | 6 KHz (-6 dB)
10 KHz (-60 dB) |
| Image rejection: | 60 dB |
| AF output power / speaker: | 3 W at 10% distortion / 8 ohm |
| External speaker connector: | TS "Minijack" (3.5 mm), 8 ohm |
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| TRANSMITTER SECTION |
| RF output power: |
AM: 4 W
SSB: 12 W (PEP)
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| Modulation system: | |
| Max FM deviation (Factory set): | No FM |
| Spurious emissions: | Better than -60 dB |
| Microphone impedance / connector: | ? ohm / 5-pin (Male locking ring jack) |
| Microphone input level: | ? mV |
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| MISCELLANEOUS |
| Manufactured: | Taiwan, 1978-198x (Discontinued) |
| Main PCB: |
Early
PC-385AD by Uniden
Single sided with through-hole components
Later
PC-965BD by Uniden
Single sided with through-hole components
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| Sub PCBs: |
Early
PC-373AA - LED channel display and indicators board
PC-383AB - Channel selector board
PC-389AA - Microphone jack board
Later
PB-? - LED channel display and indicators board
PB-025AA - Channel selector board
PB-? - Microphone jack board
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| Additional info: |
What's up with the roman vs arabic numerals? Is it possibly the
early vs later version? Can anyone shed some light on this?
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| Related documents: |
User manual (6.6 MB)
Service manual (17.3 MB)
PLL (Early): MB8719
PLL (Later): uPD2824C
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| Market(s) / Approval(s): |
USA
FCC Data: TBX89
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| Sams Photofact #: | CB-269 (August 1979) |
| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
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