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8500和9000一样,1000mhz~2000mhz是通过一个下变频器变换到0~1000mhz接收的。
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非常感谢你的介绍
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它有多个中频,其中1g-2g的波段是变频器.
频 段 第一中频 第二中频 第三中频
0.1-29.99999 48.8 10.7 0.455
30.0-499.99999 778.7 10.7 0.455
500.0-1024.99999 266.7 10.7 0.455
1025.0-1999.99999 利用变频器,当地频率: 500,1000或1010 。
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补充:type: hf/vhf/uhf receiver/scanner
frequency range: 0.1-2000 mhz
mode: am/am-n/am-w/fm/fm-n/wfm/ssb/cw
sensitivity: am (10 db s/n)
0.1-0.5 mhz: 6.3 uv
0.5-1.8 mhz: 13 uv
1.8-2 mhz: 3.2 uv
2-1000 mhz: 2.5 uv
1240-1300 mhz: 2.5 uv
am-n (10 db s/n)
1.8-2 mhz: 2.5 uv
2-1000 mhz: 2 uv
1240-1300 mhz: 2 uv
am-w (10 db s/n)
30-1000 mhz: 3.2 uv
1240-1300 mhz: 3.2 uv
fm (12 db sinad)
28-1000 mhz: 0.5 uv
1240-1300 mhz: 0.5 uv
wfm (12 db sinad)
30-1000 mhz: 1.4 uv
1240-1300 mhz: 2 uv
ssb/cw (10 db s/n)
0.1-0.5 mhz: 1 uv
0.5-1.8 mhz: 2 uv
1.8-2 mhz: 0.25 uv uv
2-30 mhz: 0.2 uv
30-1000 mhz: 0.32 uv
1240-1300 mhz: 0.32 uv
selectivity: am/fm-n: 5.5 khz (-6 db)
am-n/ssb/cw: 2.2 khz (-6 db)
am-w/fm: 12 khz (-6 db)
wfm: 150 khz (-6 db)
cw narrow: 500 hz (-6 db, with optional fl-52a)
image rejection: hf: better than 60 db
vhf/uhf: 50 db
voltage: 13.8 vdc
current drain: max 2 a
impedance: 50 ohms, so-239 on hf, n-type on vhf/uhf
dimensions (w*h*d): 287*112*309 mm
weight: 7 kg
manufactured: japan, 1996-2004
other: 1000 memories. if-shift. rs-232c. ci-v
voice synthesizer option (ut-102)
new price 2001 in sweden: 21200:- sek
说明书pdf文件