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Last modified 2022-10-09

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ADI AR-247

A picture of ADI AR-247

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range: USA
TX: 222-225 MHz
RX: 219-228 MHz
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 / 50 KHz
Frequency stability:±5 ppm @ -20 to +60°C (-4 to 140°F)
Mode:FM
Channels / memory management: 78 regular
2 bandscan
1 call
Non-volatile EEPROM storage
Repeater shift / offset:±1.6 MHz (Programmable)
Power supply:11.7-15.8 VDC ("T" connector on pigtail)
Current drain / power consumption:RX: Max 600 mA
TX: Max 9 A
Antenna impedance / connector:50 ohm / SO-239 (On pigtail)
Dimensions (W*H*D):140*40*166 mm (5.51*1.58*6.54")
Weight:1.2 Kg (2.65 lb)
Other features: CTCSS/PL with tone scan. DCS option. DTMF with paging option (DTF147).
Dimmer. 1450 / 1750 / 2100 Hz tone call.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 30.85 MHz
2nd IF: 455 KHz
Sensitivity:0.18 uV (12 dB SINAD)
Selectivity:70 dB (No reference)
Image rejection:
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:

HighMidLow
1.25 m:30 W15 W7 W
Modulation system:Reactance modulation
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -70 dB
Microphone impedance / connector:2.2 Kohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:199x-200x (Discontinued)
Additional info:
Related documents:User manual (549 KB)
Modifications and fixes:
Reviews:CQ: December 2000, page 20
Options / Accessories:
DTF147
DTS147
MC147
MC147D
DTMF unit
DCS code squelch unit
Standard dynamic hand microphone
Hand microphone with DTMF keypad