ICOM IC-R3全频收信机
一般指标
频率范围: 0.495-2450.095 MHz*
* 816-901.995 MHz range is inhibited for the U.S.A. version.
模式: FM, AM, WFM, AM-TV*1 , FM-TV*2
*1 One of either NTSC M, PAL B or PAL G systems.
*2 For 900?300 MHz, 2250?450 MHz ranges only; not available in
some versions.
Frequency resolution: 5 kHz, 6.25 kHz
频道数目: 450 (50 channel ?8 banks plus 50 scan edges)
天线: BNC (50)
工作温度: -0℃ to +60℃
频率稳定性:± 6ppm max. (-10℃ to +50℃)
电源: 3.6-6.3 V DC (negative ground)
电流消耗(at 4.5 V DC): At rated output
At stand-by 140 mA typical
Power save 53 mA typical
TV reception 210 mA typical (backlight OFF)
730 mA typical (color LCD ON）
尺寸(不含天线): 61(W) ×120(H) ×32.9(D) mm
重量: 300 g; 10.6 oz
接收指标
接收系统: Triple-conversion* superheterodyne
* below 1150 MHz; Quadruple-conversion for above 1150 MHz
中频(Unit MHz):
AM,FMWFMC3F(TV)
U.S.A.
Europe
1st240.1240.1241.85*1 , 238.35*2
2nd26.0513.2545.7538.90
3rd0.4500.450__
*1 30-799.995, 1321-2099.995 MHz range
*2 800-1320.995, 2100-2450.095 MHz range
灵敏度(typical):
AM(at 10 dB S/N)0.495-4.995 MHz 1.4 uV
5.0-29.995 MHz 1.0 uV
118-136 MHz 0.79 uV
222-329.995 MHz 1.0 uV
FM(at 12 dB SINAD)1.625-4.995MHz 0.32 uV
5.0-469.995 MHz 0.25 uV
470-799.995 MHz 0.45 uV
800-1999.995 MHz 0.56 uV
2000-2299.995 MHz 1.0 uV
2300-2450.095 MHz 1.8 uV
WFM(at 12 dB SINAD) 76-107.995 MHz 1.0 uV
175-221.995 MHz 1.0 uV
470-769.995 MHz 1.8 uV
选择度: FM, AM Less than 30 kHz/-50 dB
More than 150 kHz/-6 dB
WFM More than 12 kHz/-6 dB
音量输出功率(at 4.5 V DC): 100 mW typical at 10% distortion with an 8 load
外接扬声器: 3-conductor 3.5 (d) mm (1/8")/8
视频/音频接口: 3-conductor 3.5 (d) mm (1/8")/8
RadioShack PRO-64全频段接收机
29-54 MHz (10-Meter Amateur Radio, VHF Lo, 6-Meter Amateur Radio)
108-136.975 MHz (Aircraft)
137-174 MHz (Government, 2-Meter Amateur Radio, VHF Hi)
380-512 MHz (Military Aircraft, UHF Lo, 70-Centimeter Amateur Radio,
UHF "T" Band, Government)
806-824 MHz (UHF Public Service)
849-869 MHz (UHF Hi)
894-960 MHz (UHF Hi, 33-Centimeter Amateur Radio)