有人卖12900,对于它我很心动了(小心肝扑通扑通的)但又怕被骗,请大家帮帮我参谋一下吧,以下是它的指标
主要指标
general
· frequency coverage:
- receive: 0.030 - 199.999 mhz*, 400 - 470 mhz*
- transmit: 1.8 - 1.999 mhz*
3.5 - 3.999 mhz*
7.0 - 7.300 mhz*
10.1 - 10.150 mhz
14.0 - 14.350 mhz
18.068 - 18.168 mhz
21.0 - 21.450 mhz
24.89 - 24.990 mhz
28.0 - 29.700 mhz
50.0 - 54.000 mhz*
144.0 - 148.000 mhz*
430.0 - 450.000 mhz*
* varies according to version
· mode: usb, lsb, cw, rtty (fsk), am, fm, wfm (rx only)
· number of memory channels. : 107 (99 regular, 6 scan edges, 2 call channels)
· antenna connector : so-239x2 (for hf/50 mhz and 144/430 mhz)/50 ohms
· power supply requirement: 13.8 v ± 15% (negative ground)
· frequency stability: less than ± 7ppm from 1 min. to 60 min. after power on. after that rate of stability less than ± 1 ppm/hr. at +25 °c (+77°f). temperature fluctuations 0°c to +50°c (+32°f to +122°f) less than ±5 ppm.
· current drain: transmit max. power 20 a; receive standby 1.8 a, max. audio 2.0 a
· usable temperature range : -10°c to 60°c (14°f to140°f)
· dimensions (projections not included): 167(w) x 58(h) x 200(d) mm
· weight: 2.45 kg (5 lb 6 oz)
· ci-v connector: 2 conductor, 3.5 (d) mm (1/8")
· acc connector: 13 pin
transmitter
output power: ssb/cw/rtty/fm am
hf/50 mhz 5 - 100 w 2 - 40 w
144 mhz 2.5 - 50 w 2 - 20 w
440 mhz 2 - 20 w 2 - 8 w
modulation system: ssb balanced modulation
am low level modulation
fm variable reactance modulation
spurious emissions: less than -60 db (below 47.5 mhz: -50db; 47.5 - 50 mhz: -50 to -60 db; above 50 mhz: -60 db)
carrier suppression: more than 40 db
unwanted sideband: more than 50 db
microphone connector: 8 pin modular jack (600 ohm key connector: 3-conductor 6.35 (d) mm (1/4")
rtty connector: 3-conductor 3.5 (d) mm (1/8")
receiver
receive system:
ssb/cw/am/wfm: double superheterodyne
fm : triple superheterodyne
intermediate frequencies 1st 2nd 3rd
ssb/am-n/fm 69.0115 mhz 9.0115 mhz 0.455 khz (fm only)
cw 69.0106 9.0106 -
rtty 69.0105 mhz 9.0105 mhz -
am/fm-n 69.0100 mhz 9.0100 mhz 0.455 khz (fm only)
wfm 70.7000 mhz 10.7000 mhz -
receive sensitivity (preamp on, except 4- - 4.5 and 8 - 9 mhz) ssb/cw
10 db s/n am
10 db s/n fm
12 db sinad wfm
12 db sinad
0.5 - 1.8 mhz - 13μv - -
1.8 - 28 mhz 0.15μv 2.0μv - -
28 - 29.7 mhz 0.15μv 2.0μv 0.5μv -
76 - 108 mhz - - - 10.0μv
144/440 mhz band 0.11μv 1.0μv 0.18μv -
squelch sensitivity (threshold) ssb less than 5.6μv
fm less than 0.3μv
selectivity (normal setting) ssb, cw, rtty more than 2.4 khz/- 6 db
less than 4.8 khz/ -60 db
am/fm-n more than 8.0 khz/-6 db
less than 30 khz/-36 db
fm more than 12 khz/-6 db
less than 30 khz/-60 db
spurious and image rejection ratio: ssb/cw/am - more than 70 db
audio output power (at 13.8 v dc): more than 2.0 w at 10% distortion with an 8-ohm load
rit variable range +/-9.99 khz
phones connector: 3-conductor, 3.5 (d) mm (1/8")/8 ohms
ext sp connector: 2-conductor, 3.5 (d) mm (1/8")/8 ohms
尺寸：6.6 (w) x 2.3 (h) x 7.9 (d)英寸, 5.5 磅
输出功率：
hf + 6米波： 5-100 watts (ssb/cw/fm/rtty), 2-40 w (am);
2 米波：2.5-50 watts (ssb/cw/fm/rtty), 2-20 w (am);
440mhz - 2-20 watts (ssb/cw/fm/rtty), 2-8 w (am)
全模式包括：rtty 和 psk31
0.03 - 200 mhz 全模式宽带接收
可分离控制面板/显示器（必须选购遥控设备）
ssb/am/cw 窄带滤波器选购件
2个可选的晶体滤波器插槽
内置af数字信号处理dsp
音频tone编码
音频tone静噪
音频tone扫描
102 个存储信道
有权使用 rit / 支持vfo
波段锁
分离交叉波段
静音风扇
中频变换
前置放大器和衰减器
cw定调控制 control
qsk 全插入
语音处理器
vox声控发送
swr图解显示(绘图测量法)
两种方法测量swr：绘图测量（仅用于ant 1、hf/6 米波）和现场测量
发射频率检测
lcd 显示器，1hz分辨率
系统菜单操作简单
2 路天线连接器(hf/vhf)
单触按钮双工和自动转发功能
背光键便于夜间操作
可选购语音合成器
可选购匹配天线调谐器
可选购0.5 ppm 稳定度的高稳晶体
必须的选购设备：9600/1200bp备用件
可选购ct-17 电脑连接电平转换器
最新信息！ 可选购rmk-706 遥控装备套餐，包括：
mb-62 用于主机的移动设备支架
mb-63 用于分离前面板的移动设备支架
opc-581分离缆线
