On Fri, 9 Feb 2018 21:53:50 +0000, Ian Jackson
wrote:

In message , Gareth's Downstairs Computer
m writes



https://www.ebay.co.uk/itm/10x-Audio...Ohm-Europe-1-1
-EI14-Isolation-Transformer-Newest/172824007609?epid=2184088304&hash=ite
m283d1d13b9:g:d2EAAOSwDmtZlWH2

That's a fantastic price. I'm using a 600/600 ohm audio transformer to
isolate an earth-loop problem between the rig and the PC (extracting the
audio to feed into the sound card so I can get SSTV and DRM pictures
using MMSTV and Easypal).

I intend to try transmitting DVB-T on 438 Mhz but from what I have
read doing such will result in extra bandwidth due to sidebands.