| GENERAL |
| Type: | Citizen band transceiver |
| Frequency range: | 26.965-27.255 MHz |
| Channels / tuning steps: | 11 (Version 242-150)
12 (Version 242-143) |
| Mode: | AM |
| Frequency control: | Two XTALs per channel |
| Frequency stability: | ±0.005% @ -30 to +60°C (-22 to +140°F) |
| Clarifier or Delta tune: | No |
| Power supply: | 13.8 VDC |
| Current drain / power consumption: | RX: 200 mA (Squelched)
TX: 700 mA |
| Antenna impedance / connector: | 50 ohm / SO-239 |
| Dimensions (W*H*D): | ? mm (6.19*2.19*8.75") |
| Weight: | ? Kg (5 lb) |
| Other features: | PA. |
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| RECEIVER SECTION |
| Receiver system: |
Double conversion superheterodyne
1st IF: 4.3 MHz
2nd IF: 455 KHz
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| Sensitivity: | 0.5 uV (8 dB S/N) |
| Selectivity: | 6 KHz (-6 dB)
30 KHz (-60 dB) |
| Image rejection: | |
| AF output power / speaker: | 3 W at 10% distortion / 3.2 ohm |
| External speaker connector: | TS jack (3.5 mm) |
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| TRANSMITTER SECTION |
| RF output power: | ~3.5 W (5 W input) |
| Modulation system: | High level, class B |
| Max FM deviation (Factory set): | No FM |
| Spurious emissions: | Better than -? dB |
| Microphone impedance / connector: | 1 Kohm / Fixed cord |
| Microphone input level: | ? mV |
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| MISCELLANEOUS |
| Manufactured: | USA, 1964-1970 (Discontinued) |
| Main PCB: | |
| Sub PCBs: | |
| Additional info: |
Approximately 113000 units were manufactured
New price 1964 in the US: $189.95
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| Related documents: |
Service manual (29 MB)
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| Sams Photofact #: |
CB-8 (August 1965)
CB-30 (October 1970), version 242-143
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| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
250-822
250-823
250-825
250-826
250-828
250-829
250-849
250-861
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External PA speaker
AC power supply
Portable pack with one battery
Extra rechargeable NiCd battery
1.22 m (4 ft) fiberglass antenna
30.5 cm (12") fiberglass antenna
Antenna meter
"Tone alert" selcall unit
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