1 golden spring gs-7700usb vhf/uhf dual band amateur radio user manual.
2 a) introduction ： 1．operating frequency fm radio 65 – 108 mhz vhf 136 – 174 mhz uhf 400 – 500 mhz 2． operating mode ：frequency & channel mode 3． fm radio broadcast 4． dual band standby 5． high / low tx power level 6． ctcss & dcs encode / decode 7． 1750hz burst tone calling 8． tx time out tim...
3 16． 3 selection scan method（time、carry、searching） 17． ptt-id（encode when press ptt、encode release ptt、 encode, both in press ptt or release ptt ） 18． frequency shift direction selection 19． offset selection 0 – 37.000 mhz 20． short cut menu in keypad 21． memory of channel storage 22． 99 memory cha...
4 c) all buttons operating features : 1.1. Press [ ]key， icon will flash，then press [ ] key to enter into menu list。 1.2. Select key to enter your desire menu mode。 1.3. Press key to enter into menu setting，press to elect different setting，then press [ ] key to storage the new setting and return to ...
5 and repeat same key operation to exit keypad lock. [up/down] key ： in frequency mode : to adjust frequency up or down. In channel mode : to adjust channel memory up or down. In menu mode : to adjust menu mode or setting selection. Continue press up/down key over 2 seconds will activate fast runnin...
6 [side] key middle (orange color monitor key) : press monitor key to activate monitor signal。 . [side] key bottom (orange color a/b vfo key) : press a/b vfo key to activate the change of f1 and f2 vfo operation。 . D） combination key feature : 1、burst tone calling： press ptt key then press monitor k...
7 e) menu list menu feature setting 1 channel step 5,6.25,10,12.5,20,25 2 squelch 0---9 3 battery save off/on 4 tx power high/low 5 roge calling off/on 6 tot off/1m-7m 7 vox off/1-9 8 beep key tone on/off 9 tdr dual watch on/off 10 rx code ctcss/dcs off/67~254.1/023~754 11 tx code ctcss/dcs off/67~2...
8 19 busy lock out on/off 20 shift dir 0 / - / + 21 offset 0~69.995m 22 scan mode to/co/se 23 tx a/b f1/f2/off 24 reversion on/off 25 ste on/off 26 name display 0-9,a~z 27 band width wide/narrow 28 back light blue/blue+red menu operation and data setting ; 1.1. Press [ ]key， icon will flash，then pre...
9 gs-7700usb frequency range : 136-174mhz and 400-500mhz power output : 5 watts (vhf), 5 watts (uhf) talk range : 5-8km volume : 58 x 110 x 35 mm features 99 memory channel 1750khz burst tone fm radio (65mhz-108mhz) ctcss/dcs with separate setting in tx/rx low battery alert vox voice activate transm...
10 receiver sensitivity (12db sinad) : -122dbm spurious response rejection : 65db fm ham & noise : 40db(n)/45db(w) audio power output @ 8Ω : 1w audio distortion : ≤10% receiver current : ≤380ma made in china.
