Icom IC-R3

General:

Frequency Range: 0.495-2450.095 MHz
Mode: FM, AM, WFM, AM-TV, FM-TV
AM TV one of either NTSC M, PAL B or PAL G systems
FM TV for 900-1300 MHz, 2250-2450 MHz ranges only; not available in some versions
Frequency resolution: 5 kHz, 6.25 KHz
Number of memory channels: 450 (8 banks of 50 channels plus 50 scan edges)
Antenna connector: BNC (50 ohms)
Operating temperature range: -10°C to +60°C ; +14 F to +140 F
Frequency stability: ±6 ppm max.( -10°C to +50°C)
Power supply requirement: 3.6-6.3 V DC (negative ground)
Current drain (at 4.5 V DC):
At rated output: 210 mA typical (backlight off)
At stand-by: 140 mA typical
Power save: 53 mA typical
TV reception: 730 mA typical (color LCD on)
Dimensions: 61 (W) x 120 (H) x 32.9 (D) mm; 2 13/32 (W) x 4 23/32 (H) x 1 9/32 (d) in.
Weight: 300 g

Receiver: 

Triple-conversion superheterodyne
Quadruple-conversion for above 1150 MHz
Sensitivity (typical):
AM (at 10 dB S/N)
0.495-4.995 MHz: 1.4 µV
5.0-29.995 MHz: 1.0 µV
118-136 MHz: 0.79 µV
222-329.995 MHz: 1.0 µV
FM (at 12 dB SINAD)
1.625-4.995 MHz: 0.32 µV
5.0-469.995 MHz: 0.25 µV
470-799.995 MHz: 0.45 µV
800-1999.995 MHz: 0.56 µV
2000-2299.995 MHz: 1.0 µV
2300-2450.095 MHz: 1.8 µV
WFM (at 12 dB SINAD)
76-107.995 MHz: 1.0 µV
175-221.995 MHz: 1.0 µV
470-769.995 MHz: 1.8 µV 

Selectivity:

FM, AM: More than 12 kHz/-6 dB
Less than 30 kHz/-50 dB
WFM: More than 150 kHz/-6 dB
Audio output power (at 4.5 V DC): 100 mW typical at 10% distortion with an 8 ohm load
External SP connection: 3-conductor 3.5 (D) mm (1/8")/8 ohm
Video/Audio OUT connector: 3-conductor 3.5 (D) mm(1/8")/8 ohm