GB3UT is lonely and needs through put.
The GB3UT ATV Repeater is now being looked after by G8DRK, Robin - QTH Bath,
supported by myself G8BYI, Richard - QTH Southwick. We took over keepership
from G8CPF, Mike, who has moved to pastures new. We thank him for the
sterling work he did over many years in maintaining UT.
GB3UT is located on the roof of a high building at the University of Bath,
around 220 metres ASL.
It used to be an AM 23cm ATV repeater, but it was modified to FM several
years ago using G1MFG modules. It also, at that time, changed its RX
frequency from 1276.5 MHz to the current 1249 MHz, with its TX frequency
remaining unchanged at 1311.5 MHz. Power is 25W EIRP.
Of late, we have implemented extensive modifications to the G1MFG receiver
which have improved its sensitivity and picture quality. Other improvements
include a narrower IF SAW filter, and the addition of AFC.
Modifications have also been done to the transmitter, to fully correct its
frequency response and optimise the 6.0 MHz subcarrier level.
We currently have two methods of sending out testcards. One uses the
original Cropredy firmware method, and the second utilizes a SanDisk video
frame player that accepts digital memory cards (CF/SD types etc).
This enables JPG format testcards and info-screens to be produced by us and
displayed, as well as short video clips. We have arranged for the remote
control of this unit by the repeater keeper, so that different seasonal
cards and info can be selected as required.
Future plans include implementing a Digital TV TX/RX capability.
Costs are prohibitive at the moment, but as cheaper secondhand encoding
equipment starts to find its way onto the market, that could change.
The REALLY important thing we lack at the moment, is users for this
repeater, so if anyone would like to try accessing it, you would be most
Thanks for reading this