Service manual
SPECIFICATIONS FOR VHF RADIOS
All specifications are per Electronic Industries Association (EIA) 316B unless otherwise noted.
RF Power:
136-174MHz 1Watt/5 Watts
174-178MHz 1Watt/4 Watts
Frequency Range: 136–178MHz
†
Frequency Stability
(–30 to +60°C; 25°C ref.): ± .00025%
Emission (Conducted and Radiated): –66dBw
FM Hum and Noise
(Companion Receiver): –45dB Typical
Distortion: 3% Typical
Modulation Limiting: ±5kHz
Emissions Designators:
20K0F1E, 16K0F3E, 15K0F2D,
15K0F1D, and 8K10F1E
Frequency Range: 136–178MHz
Bandwidth: 42MHz
Quieting Sensitivity (20dBQ): 0.5µV Max.
Usable Sensitivity
(12dB SINAD): 0.35µV Max.
Intermodulation: –70dB
Selectivity
(30kHz Adjacent Channel): –70dB
Spurious Rejection: –70dB
Frequency Stability
(–30 to +60°C; 25°C reference): ± .00025%
Rated Audio: 500mW
Distortion (At Rated Audio): 3% Typical
Channel Spacing: 30kHz
GENERAL RECEIVER TRANSMITTER
Specifications subject to change without notice.
FCC Designation: AZ489FT3770
Temperature Range:
Operating: –30°C to +60°C
Storage: –40°C to +85°C
Power Supply: Nickel-Cadmium Battery (NiCd)
or
Nickel-Metal-Hydride Battery (NiMH)
Battery Voltage:
Nominal: 7.5 Volts
Range: 6 to 9 Volts
Recommended Battery:
Medium Capacity NiCd: NTN4593**
or
Ultra–High Capacity NiCd: NTN4595**
or
Medium Capacity NiMH: NTN7014
or
High Capacity NiMH: NTN7251
Optional FM (Factory Mutual) Battery :
High Capacity FM:
NTN4538*/**
or
Ultra-High Capacity FM: NTN4596*/**
* FM Intrinsically Safe: Class I, II, III, Division 1,
Groups D, F, and G
** FM Nonincendive: Class I, Division 2,
Groups A, B, C, and D
Dimensions (H x W x D)
Note: 2.64" = width at PTT; 2.94" = width at top
Less Battery:
5.20" x 2.64"/2.94"x 1.23"
(131.32mm x 67.05/74.67mm x 31.24mm)
With Medium Capacity NiCd Battery:
8.34" x 2.94" x 1.28"
(211.82mm x 74.67mm x 31.24mm)
With Ultra-High Capacity NiCd Battery:
9.10" x 2.94" x 1.23"
(231.12mm x 74.67mm x 31.24mm)
With High Capacity NiMH Battery:
8.34" x 2.94" x 1.23"
(211.82mm x 74.67mm x 31.24mm)
Weight: (w/Helical Antenna)
Less Battery: 12.8oz. (366gm)
With Medium Cap. NiCd : 26.81oz. (759gm)
With Ultra-High Cap. NiCd: 29.95oz. (849gm)
With High Cap. NiMH: 26.3oz. (746gm)
iv