BATC Forum

OK, in eager (?) anticipation of Septembers activity days, how are people producing (or planning to produce) DATV on 6m?
Been playing around tonight with Portsdown 2019 and my LimeUSB. It produces a carrier on 6, but no DATV.
EXpressDVB might well oblige with the Lime USB. SDRPlay RSP1 under SDRAngel or DVBS-GUI might cover the RX. Got a 4 Element LFA all ready. Just need a PA....wonder if the 4m brick has any gain there?
Gareth

My 4m PA uses the Mitsubishi 66-88Mhz brick and it works fine at 51MHz with no reduction in usable power.

Thanks, handy to know. What are you exciting it with?
Gareth

Yes they do

I use both the RA07H0608 and the RA30H0608 on both 6m and 4m DATV. The one vital thing needed if choosing this route is a 6m LPF on the output of both these bricks as they dont have much loss at 100MHz. I use external QRO filters (normally used on other amplifiers elsewhere) from a design in an old arrl manual http://g4fre.com/2mlpf.pdf

I got the idea of using the RA30H0608 on 6m when i discovered that elecraft used it in their XV50 6m transverter

Dave
G4FRE

radiogareth wrote: ↑

Sat Aug 15, 2020 8:31 pm

wonder if the 4m brick has any gain there?
Gareth

radiogareth wrote: ↑

Sun Aug 16, 2020 6:32 am

Thanks, handy to know. What are you exciting it with?
Gareth

Sorry it was getting a bit late. I'm using the Portsdown and LimeSDR Mini. No idea why it works and yours doesn't.

Steve