Service manual

Page 3
SVR-250 Service Manual
Specifications
Transmitter: VHF UHF 700/800/900 MHz
Frequency Range: 150-174 MHz 405-425 MHz (UA)
1
764-776, 794-806 (MC,MD)
450-470 MHz (UD) 806-824, 850-870 (MB,MA)
470-490 MHz (UE)
1
897-902, 936-941 (ME,MF)
Rf power out: 250mW - 2W 250mW - 2W 100mW - 600mW
Spurious emissions: -50dBc -50 dBc -50dBc
Freq stability -30°~+60°C: 1.5 PPM 1.5 PPM 1.5 PPM
Modulation: 16K0F3E /11K0F3E 16K0F3E /11K0F3E 16K0F3E
2
/11K0F3E
Hum and Noise: -40/-37dB (25/12.5kHz) -40/-37dB (25/12.5kHz) -40/-37dB (25/12.5kHz)
Audio response (300-3kHz): Flat or +6dB/octave Flat or +6dB/octave Flat or +6dB/octave
Audio distortion: <3% @ 60% deviation <3% @ 60% deviation <3% @ 60% deviation
Local mic sensitivity: 300mV-5VPP 300mV-5VPP 300mV-5VPP
FCC Type Acceptance: LRUSVR-200VB LRUSVR-200U LRUSVR-200M
Industry Canada Approval: 2390 195 458A 2390 212 113A 2390A-SVR200M
Receiver:
Frequency Range: 150-174 MHz 405-425 MHz (UA)
1
764-776, 794-806 (MC,MD)
450-470 MHz (UD) 806-824, 850-870 (MB,MA)
470-490 MHz (UE)
1
897-902, 936-941 (ME,MF)
RF sensitivity: .35μV .35μV .35μV
Squelch sensitivity: .2μV to 2μV adjustable .2μV to 2μV adjustable .2μV to 2μV adjustable
Modulation acceptance: ±7.5 /±3.75kHz ±7.5 /±3.75kHz ±7.5
2
/±3.75kHz
Selectivity: 60/57dB (25/12.5 kHz) 60/57dB (25/12.5 kHz) 50dB
Spurious/image rejection: 60db 60db 60db
IMD response: 60db 60db 60db
Frequency stability: 1.5 PPM 1.5 PPM 1.5 PPM
Audio response (300-3kHz): Flat or -6db/octave Flat or -6db/octave Flat or -6db/octave
Audio output: 0-5VPP AC coupled 0-5VPP AC coupled 0-5VPP AC coupled
Local Rx Audio: 400 mW 8 Ohms 400 mW 8 Ohms 400 mW 8 Ohms
Power Requirements:
DC Supply 13.6 VDC 13.6VDC 13.6VDC
Standby 170 mA 170mA 170mA
Receive 250 mA 250mA 250mA
Transmit 1 A @ 2W 1.5A @ 2W 700mA @ 600mW
Physical:
Dimensions: 5.75"W x 8"L x 2.25"H
Weight: 36 oz.
Case: One piece extruded aluminium
1
405-425 and 470-490 available as special order Only
2
16K0F3E & ±7.5kHz available on 806-824 and 850-870 MHz Only