GB3BF re-engineering

Monday, 10 February 2020 16:53

Although GB3BF is not currently on-air, Bill IAY has been busy with some re-engineering to enable us to use a single aerial for receive and transmit (on the old site we used two aerials 50 ft apart!).

Because the “split” is only 600kHz at 144MHz, this requires some serious filtering, below is a photo of a four-barrel combiner that Bill is working on.