This afternoon Ted G4NUA came around to test the receiver section of his Fivehead 20m SSB transceiver kit from Walford kits in Somerset. I was surprised how small the transceiver was. We checked the RX with a signal generator and re-did the alignment. We then tried it on an external antenna and it was about the same sensitivity as the FT817 and was copying plenty of stations on 20m SSB. Ted has still to finish the TX part. When done it should put out about 1.5W pep.
3 Mar 2010
Fivehead QRP SSB transceiver kit
This afternoon Ted G4NUA came around to test the receiver section of his Fivehead 20m SSB transceiver kit from Walford kits in Somerset. I was surprised how small the transceiver was. We checked the RX with a signal generator and re-did the alignment. We then tried it on an external antenna and it was about the same sensitivity as the FT817 and was copying plenty of stations on 20m SSB. Ted has still to finish the TX part. When done it should put out about 1.5W pep.
Was the vfo stable enough for digi, Roger?
ReplyDeleteStability was not tested Julian and it was not cased at the time. I would think it would be fine for PSK31 and WSPR though if put in a case.
ReplyDeleteHi,
ReplyDeleteMy name is ian-M0IDR and I have a part completed Fivehead QRP transceiver. It has two pcb boards, one like the pics here and what I guess is the 10w PA board. there are lots of disconnected wires etc, I was wondering if anyone would have the build instructions?
The receiver is working fine but the transmit side has been "got at"
Many thanks in anticipation
ian.radioworkshop@hotmail.co.uk
Ian Reeve M0IDR
I have a set of instructions. I bought the kit in 2003 from Tim and only finished it in January 2022! Not due to inability to understand the instructions but growing family and work. It’s a superb bit of kit. It worked first time and I have ha QSOs around Europe with good reports using 1.5 watts! It has exceeded my expyby several magnitudes. Email me and I’ll send you the instructions.
ReplyDeleteBW
Paul,G8FVK