GB3HV statusPosted by Noel - G8GTZ Sat, May 02, 2015 18:42:02
Visit on 2nd May saw a 10 GHz LNB and horn installed so that HV can now relay GB3BH in Bushey Heath.
GB3BH can be viewed using the DTMF code 771 and is also visible on the video quad (DTMF 774) although there is currently no audio on the quad.
The link is over a 55KM path on 10 GHz and only just clears some local trees at the HV end - it will be interesting to see how reliable the link is. It was intended to mount the LNB and horn on the handrail but in order to gain the extra height needed they were temporarily lashed using cable ties between the 23cms and 3.4 GHz antennas - no it wasn't foggy - my iphone lens is scratched
It is planned to have BH as another automatic input on HV, such that when BH is accessed it will transmit a CTCSS tone and HV will see it as a valid input and automatically relay the signal. This involves modification to the logic board and the lack of quad audio will be fixed at the same time.
BH will be on a lower priority input than HV's local receivers and sources and so the BH signal will only be relayed if there is no local input signal to HV.
By permanently linking GB3BH and GB3HV we will hopefully increase activity on both repeaters.
The mast camera (DTMF 776) was also replaced with a higher resolution unit - it is on the same mast as the rotatable 70cms beam but don't forget the mast camera has higher priority than any RF input so you need to switch it off (DTMF 777) before transmitting in to HV.
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