Band Viewer comes in handy

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
Post Reply
gi7ugv
Posts: 50
Joined: Tue Oct 31, 2017 2:47 pm

Band Viewer comes in handy

Post by gi7ugv » Thu Nov 24, 2022 10:44 pm

Not strictly ATV related really, but the Band Viewer being available in the Portsdown made me try something quickly I likely wouldn't have if I needed to hook things up to a computer + SDR.

I enjoy going out portable on 10GHz but there's no beacon here in Northern Ireland any more and the English/Scottish ones are not normally audible so getting the initial alignment set up is always difficult. Never can get it quite spot on with bearings to visible objects or with a compass and being 5-10 degrees out it's pretty much useless if the other stations weak due to the beam width being so narrow.

I normally rely on a strong but distant enough signal to align to and there's only really one or two people with a reliable strong signal to here and I'm always grateful to hear they are on, as if not, I'm going to struggle.

The MKU 10 G2 transverter is 10368-10370 and had never heard of someone using one to receive QO-100 at 10489+ aside from a question about modifying one to do it but think the response was why mess with an expensive transverter for something a £10 LNB can do.

Anyway, thought I'd just have a check while was cleaning the garage out and the setup was sitting out the back so grabbed the Portsdown as it was easy to hold in hand outside on battery while moving the dish about, and turns out it the transverter RX stretches up to QO-100 frequency well enough. All this time messing about with a compass and bearings to objects in the distance when there's a beacon always visible in the sky to align to!

Image below of it on the narrowband transponder, would be horizontal when portable and the DATV beacon is visible horizontal with the dish well enough if I've got the Portsdown out with me, which I likely will have from now on.

So anyway, thanks Portsdown Bandviewer + QO-100 :)

Image

IZ7PDX
Posts: 19
Joined: Mon Jan 31, 2022 7:55 pm

Re: Band Viewer comes in handy

Post by IZ7PDX » Wed Nov 30, 2022 4:41 pm

Dear Gi7ugv, your experience is significant!
I think the "Band Viewer" feature is really great when you are outdoor in the middle of nowhere on a mountain and would like to "see" the signals being beamed towards you in a certain band and approximate direction... It's an amazing help for a first search if you don't know the exact frequency !
Many thanks to Dave and all the dev team for this new feature...
I got to show a smaller version of my Portsdown 4 at the Pescara fair (central Italy) and they were a huge success!
Portsdown 4 - All Inclusive DATV.JPG
Portsdown 4 - All Inclusive DATV.JPG (667.9 KiB) Viewed 2043 times
73 Luigi IZ7PDX

Post Reply

Return to “The Portsdown Digital ATV System”