Golden Spring GS-7700USB User manual

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GOLDEN SPRING
GS-7700USB VHF/UHF Dual Band
Amateur Radio
User Manual

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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 Timer
9．Channel Step In 5K、6.25K、10K、12.5K、20K、25K
10．Battery Save
11．VOX Voice activated PTT
12．RX Busy Lock Out
13．Low Battery Alert
14．Back Light Auto
15．3 Selection of LCD Display（Frequency, Channel & Name）

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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 Channel
23．Frequency reversion in TX / RX
24．PC Programming
B) Keypad and LCD Description :
UP
DOWN
1 / SQL
2 / PWR
3 / SCAN
4 / Step
5 / TOT
6 / RCODE
7 / TCODE
8 / FM
9 / SET
V / M
0 / TDR
F/ [ ]

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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 menu mode。
1.4. Press [ ] key to exit menu list and return to frequency mode。
2.1 Continue press [ ] key over 2 seconds to activate keypad lock

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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 running in selection.
In Scan Mode : to activate scan direction.
[VM] Key :
Press over 2 seconds to activate the change of Frequency
mode or Channel mode。
[0 –9] Key :
For Entry Frequency, Channel, Menu List, Menu Setting.
and Name List Setting。
[SIDE] Key Top (Orange color PTT key) :
Press PTT key to activate transmit。
.

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[SIDE] Key Middle (Orange color Monitor key) :
Press Monitor key to activate monitor signal。
.
[SIDE] Key Bottom (Orange colorA/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 Key will activate 1750Hz burst
tone calling when you release monitor key, 1750KHz burst will be off.
2、Factory Default Setting
Press key continue to turn on, LCD will display [RESET→
VFO→ALL], then press [F] Key to confirm setting.

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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/67~254.1/023~754
12
BACK LIGHT
ON/OFF
13
PTT ID
ON/OFF
14
ANI
0~9,A~F
15
PTI DM
OFF/BOT/EOT/BOTH
16
DT ST
ON/OFF
17
MDF 1
FREQ/CHAN/NAME
18
MDF 2
FREQ/CHAN/NAME

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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 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 select different setting，then press [ ] key to storage the
new setting and return to menu mode。
1.4. Press [ ] key to exit menu list and return to frequency
mode。

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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 Transmit
Dual Watch Receiver with Dual Display
Channel Step 5 / 6.25 / 10 / 12.5 / 25 kHz
Frequency Shift with Offset from 0.10 to
37.000MHz
Tx Time Out Timer
PC programming
Specification
GENERAL
Channel Capacity
:
128
Channel Spacing
:
5 / 6.25 / 10 / 12.5 / 25KHz
Operated Voltage
:
7.4V
Frequency Stability
:
2.5ppm(-20 ºC ~+60 ºC )
Operated Temperature
:
-30 ºC ~+60 ºC
Antenna Impedance
:
50 Ω
TRANSMITTER
Modulation
:
F3E
Spurious Emission
:
<-60dB
FM Noise(N/W)
:
≥-45dB≥-40dB
Audio distortion
:
Less than10.%
Adjacent Channel Power
:
≤-65dB≤-60dB
Max Frequency Deviation
:
5KHz (N)/ 2.5KHz (W)
Frequency Error
:
500Hz
Modulation Distortion
:
0.1KHz (300-3000KHz)
Transmitting Current
:
About1.4A

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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