Appendix A - Technical Specifications
GENERAL |
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Compliance: | AS4355 and AS4367 |
Frequency range: | 26.965 - 27.980 MHz |
Frequency stability: | .001% |
Phase locked loop |
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Dual Watch, Favourite 3 Channel Scan, All Scan |
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CH88/9 Recall |
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LCD display (viewing area): | 30 x 25 mm (black on silver) |
LCD and microphone keys backlit |
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Backlighting control: | 4 levels (OFF, LOW, MED, HIGH) |
Dimensions (without trunnion): | 162 x 75 x 157mm |
Weight (with microphone): | 1.2kg |
Waterproof level: |
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Last Channel memory |
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50Ω | |
Input voltage: | 10.8 to 16.3V DC |
Operating temperature range: | 0ºC to 55ºC |
Extension speaker cable with covered jack
Fused DC power cable with quick disconnect terminals
Reverse polarity protection
TRANSMITTER |
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RF output power at 12.6V DC: | 4W maximum legal power |
Modulator mode: | AM (A3E) |
Modulation sensitivity: | 60% modulation @ 1 Pascal (microphone) |
Hum & Noise: | Better than 10% @ 60% modulation |
Current drain: | 2.0 amps @ full modulation |
Spurious & Harmonic Suppression: | Better than |
RECEIVER |
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Dual Conversion Superhetrodyne |
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Sensitivity: | 0.5uV for 12dB SINAD |
IF frequencies: | First: 10.7MHz; Second: 450KHz |
Selectivity: | |
Image rejection: | 70dB |
Intermodulation rejection: | 60db (20KHz channel specification) |
SQ range: | Tight = 10uV; Threshold = 0.3uV |
Audio output: | 1W @ 16Ω, external 4W @ 4Ω |
Current drain: | 800mA full volume, 350mA squelched |
Spurious emissions: | |
Hum & Noise: | better than |
Specifications are subject to change without notice.
14 | NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual |
