SR3GW - Technical information

Technical information

Callsign SR3GW

QTH locator JO72pr

Height 65 m ASL

TX frequency 438,950 MHz

RX frequency 431,350 MHz

Shift 7,6 MHz

Output Power 10 W

Antenna Ringo Ranger ARX-450

TX Motorola 1200E

RX Kenwood TM-455

Duplexer Jiesai SGQ-450

Repeater Controller Main Microcontroller PIC 16F628,
Software VK5DJ, Produced & hardware
modifications SP3HTF,
tests & adjustments SQ3MU

Power supply 13,8V

Access 1750Hz or CTCSS 77Hz
transmit over 2 seconds

Works without CTCSS Once opened by a CTCSS or 1750Hz beep the repeater is available during 3 minutes. After this time you must send again 77Hz or 1750Hz signal

Timeout timer 5 minutes

Repeater beacon every 30 minutes from last transmit
- BEACON SR3GW JO72PR -
Callsign period - every 5 minute, when opening
- always at the end of transmission
- at the start of transmissions if the call timer is expired (5 minutes)

Remote controls DTMF tones

Callsign	SR3GW
QTH locator	JO72pr
Height	65 m ASL
TX frequency	438,950 MHz
RX frequency	431,350 MHz
Shift	7,6 MHz
Output Power	10 W
Antenna	Ringo Ranger ARX-450
TX	Motorola 1200E
RX	Kenwood TM-455
Duplexer	Jiesai SGQ-450
Repeater Controller	Main Microcontroller PIC 16F628, Software VK5DJ, Produced & hardware modifications SP3HTF, tests & adjustments SQ3MU
Power supply	13,8V
Access	1750Hz or CTCSS 77Hz transmit over 2 seconds
Works without CTCSS	Once opened by a CTCSS or 1750Hz beep the repeater is available during 3 minutes. After this time you must send again 77Hz or 1750Hz signal
Timeout timer	5 minutes
Repeater beacon	every 30 minutes from last transmit - BEACON SR3GW JO72PR -
Callsign period	- every 5 minute, when opening - always at the end of transmission - at the start of transmissions if the call timer is expired (5 minutes)
Remote controls	DTMF tones