Icom IC-RX7 Service Manual Addendum

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Icom IC-RX7 Service Manual Addendum Manual pdf 33 page image

1 - 1SECTION 1. SPECIFICATIONSD General• Frequency coverage : (Unit: MHz)USA 0.150–821.995, 851.000–866.995,896.000–1300.000Other than USA 0.150–1300.000• Number of memory channels : 1600 channels (Memory channels)200 channels (Auto write channels)25 channels (Scan edge channels)• Receive modes : FM, AM, WFM• Frequency resolution : 5, 6.25, 7.5, *8.33,*9, 10, 12.5, 15, 20,25, 30, 50, 100, 125, 200 kHz*selectable depending on the operating frequency band.• Operating temperature range : –10°C to +60˚C; +14˚F to +140˚F• Reference frequency stability : ±6 ppm (–10˚C to +60˚C; +14˚F to +140˚F)• Power supply requirement : BP-244 (Li-Ion battery pack),(Negative ground) BP-262 (3 AA (LR6) alkaline cells) or5.1 to 6.9 V DC (with CP-18A/E)• Current drain (backlight OFF with BP-244 (3.7 V DC):rated audio 150 mA typicalreceive standby 100 mA typicalpower saved 35 mA typical• Antenna connector type : SMA• Antenna impedance : 50 Ω (unbalanced)• Dimensions (proj. not included) : 57(W) × 128(H) × 23(D) mm21⁄4(W)×51⁄32 (H)×29⁄32 (D) in• Weight (approx.) : 200 g; 7.1 oz (with the ant. and BP-244)• AF output power (at 3.7 V DC) : More than 600 mW at 70% modulation,10% distortion with an 8 Ω load• Ext. speaker connector : 3-conductor 3.5 (d) mm ( 1⁄8″)/8 ΩD Receiver• Receive system : Triple-conversion superheterodyne• Intermediate frequencies : 1st : 429.1 MHz,2nd : 19.65 MHz (FM/AM),20.75 MHz (WFM)3rd : 450 kHz (FM/AM),1.55 MHz (WFM)• Sensitivity (except spurious points) :FM (1 kHz/3.5 kHz Dev.; 12 dB SINAD)1.625–4.995 MHz Less than 0.56 μV5.000–246.995 MHz Less than 0.4 μV247.000–832.995 MHz Less than 0.56 μV833.000–1300.000 MHz Less than 0.79 μV (Except USA version)851.000–866.995 MHz Less than 1.3 μV (USA version only)896.000–1300.000 MHz Less than 0.79 μV (USA version only)WFM (1 kHz/52.5 kHz Dev.; 12 dB SINAD)76.000–108.000 MHz Less than 1.8 μV175.000–221.995 MHz Less than 1.8 μV470.000–770.000 MHz Less than 2.5 μVAM EXT-ANT (DX) (1 kHz/30% MOD.; 10 dB S/N)0.495–4.995 MHz Less than 2.5 μV5.000–29.995 MHz Less than 1.8 μV118.000–136.000 MHz Less than 1.8 μV222.000–246.995 MHz Less than 1.8 μV247.000–329.995 MHz Less than 1.8 μV• Selectivity :AM/FM More than 15 kHz/–9 dBLess than 30 kHz/–60 dBWFM More than 150 kHz/–6 dB