gb3wu repeater gb3wu repeater gb3wu

Click on the map for coverage overview

The Worcester UHF (70cms) repeater, GB3WU, has finally received its NoV for operation from the WRAA club shack after waiting for 22 months!

GB3WU was installed by Mike G8TIC and Peter G0WXJ at midday on Sunday, 9th February and test transmissions were made between 12.06 and 12.20 UTC. The repeater became operational at 12.25 after installation was completed.

About the repeater:

GB3WU is a "wide split" (7.6MHz) split repeater that operates on channel

RU66 (430.8250MHz output; 438.4250MHz input) and is accessed by CTCSS sub-tone freuqency 118.8Hz (tone code "J").

The repeater comprises a Tait TB7100 base-station with an NHRC-4 controller.

In order to access the repeater you must radiate the 118.8Hz subtone on your transmission on the input frequency. The repeater will return its callsign in morse code on first access after being idle for an extended period and will return a 3-tone rising beep as the courtesy tone and drop carrier after approx 2 seconds.

The repeater runs approx 15W RF in to the combiner, splitter and coax to achieve 10W at the antenna which is a 4dBd gain WX1 VHF/UHF colinear and acheives the 25W ERP (14dBW) licensed power. The antenna is at approximately 8m AG and the site is approximately 80m AGL.

GB3WU is on the same channel as GB3ZB which can be received at modest signal strengths in some parts of the city (53-55 on a base-station antenna). If you suffer co-channel interference from GB3ZB please:

a) enable CTCSS decode on your receiver (GB3WU outputs 118.8Hz)

b) let Mike or Pete know

Using the repeater: The repeater is available for all licensed radio amateurs to use. It is a shared resource for the whole amateur radio community including portable, mobile and fixed station users.

Please ensure that you:

* get your repeater shift the right way round

* radiate the required CTCSS tone (118.8Hz "encode")

* leave occasional gaps during a QSO so that other stations can call in


      Callsign: GB3WU

      Location: 1Km NE Worcester City Centre

      Channel: RU66

      Output frequency: 430.8250MHz

      Input frequency: 438.4250MHz

      CTCSS tone: 118.8Hz

      Toneburst access: No