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SECTION 1 SPECIFICATIONS
M GENERAL
• Frequency coverage : TX
RX
156.025–157.425 MHz
156.050–163.275 MHz
CH70 RX 156.525 MHz
• Type of emission : 16K0G3E (FM), 16K0G2B (DSC)
• Antenna impedance : 50
Ω
(Nominal)
• Operating temperature range : –4˚F to +140˚F
• Power supply requirement : 13.8 V DC ±15% (negative ground)
• Current drain (At 13.8 V DC ; approx.) : Receiving
Transmitting
1.5 A (at max. audio)
5.5 A (at 25 W)
• Dimensions (Projections not included) : 6
1
/2 (W)×4
11
⁄32 (H)×4
27
⁄32 (D) in.
• Weight (Approx.) : 3 Ib 19 oz.
M TRANSMITTER
• Output power (At 13.8 V DC) : 25 W (High)/1 W (Low)
• Modulation : Variable reactance frequency modulation
• Maximum frequency deviation : ±5.0 kHz
• Frequency stability : Less than ±10 ppm (–4˚F to +140˚F)
• Spurious emissions : Less than 70 dBc (at 25 W)
Less than 56 dBc (at 1 W)
• Adjacent channel power : More than 70 dB
• Audio harmonic distortion : Less than 10% (at 60% deviation)
• Residual modulation : More than 40 dB
• Audio frequency response : +1 dB to –3 dB of 6 dB oct. from 300 Hz to 2500 Hz
• Microphone impedance : 2 k
Ω
M RECEIVER
• Receive system : Double conversion superheterodyne system
• Intermediate frequencies : 1st IF: 21.7 MHz, 2nd IF: 450 kHz (Normal RX)
1st IF: 31.05 MHz, 2nd IF: 450 kHz (CH70 RX)
• Sensitivity : –13 dBµ typical at 12 dB SINAD
• Squelch sensitivity : –10 dBµ
• Adjacent channel selectivity (typ.) : 80 dB (Normal RX)
75 dB (CH70 RX)
• Spurious response (typ.) : 80 dB (Normal RX)
75 dB (CH70 RX)
• Intermodulation rejection ratio (typ.) : 80 dB (Normal RX)
75 dB (CH70 RX)
• Hum and Noise (typ.) : 40 dB
• Audio frequency response : +1 dB to –3 dB of –6 dB oct. from 300 Hz to 3000 Hz
• Audio output power : 4.5 W typical at 10% distortion with a 4
Ω
load
• Audio output impedance : 4
Ω
Specifications are measured in accordance with TIA/EIA 603
All stated specifications are subject to change without notice or obligation.
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