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146.5MHz South Wales to Taunton Tests
Posted: Sun Feb 04, 2018 9:34 pm
by GW0KAX
During the January ATV Activity weekend, I had attempted to work Noel and the Bristol Guys, on 146.5MHz, without Success, mainly as the path to the East here is restricted.
Last Thursday, Adrian G4UVZ suggested running some tests on 146.5MHz, Taunton is Approx due SSE of my QTH so the path is better.
After some issues were sorted, we successfully exchanged pictures on 2m, path length was about 46 Miles
Some photos of the exchange:
- 20180201_210631.jpg (102.45 KiB) Viewed 6279 times
73
Petrie
GW0KAX
Re: 146.5MHz South Wales to Taunton Tests
Posted: Sun Feb 04, 2018 9:41 pm
by GW0KAX
And another.....
- IMG_1190.jpg (164.17 KiB) Viewed 6278 times
Re: 146.5MHz South Wales to Taunton Tests
Posted: Fri Feb 09, 2018 9:35 pm
by G4uvz
Great contact over quite an obstructed path ..learning point ...line up antennas on fone before trying NBDATV!
...Anyone in Wiltshire ready for 2M tests?
Adrian
Re: 146.5MHz South Wales to Taunton Tests
Posted: Fri Feb 09, 2018 10:22 pm
by M5TXJ
What power was being used?
73 Dave
Re: 146.5MHz South Wales to Taunton Tests
Posted: Thu Mar 01, 2018 8:09 pm
by GW0KAX
Hello Dave,
My end, DATV Express with G4DDK Amplifier, about 4.5W into a 12ele PowAbeam at 50 feet.
Amplifier:
https://www.dg0ve.de/en/index_htm_files ... 017_01.pdf
73
Petrie
GW0KAX
Re: 146.5MHz South Wales to Taunton Tests
Posted: Fri Mar 02, 2018 8:03 am
by g0mjw
What is the gain of the powerbeam? Is it this one
https://www.thedxshop.com/powabeam-ante ... 2n50x.html Quite a monstor on an 8m boom.
I am really surprised that PA can give 4.5W on DATV. Normally you are lucky to get 10% of the maximum CW output.
Re: 146.5MHz South Wales to Taunton Tests
Posted: Sat Mar 03, 2018 10:52 pm
by GW0KAX
Hello Mike,
Edit: I've got the CQM12UX, 6m long, I've assumed 12dB Gain for ERP calculation.
Got the Amps Mixed up!, I use this one at home
https://www.dg0ve.de/en/index_htm_files ... 017_01.pdf & the other one I use in Cardiff.
Also use a 30ele PowAbeam Antenna on 70cm with a
https://www.dg0ve.de/en/index_htm_files ... 017_01.pdf Amp.
So if anyone in the South Wales / South West wants to do a test on 2m or 70cm, give me a shout!
73
Petrie
GWOKAX
Re: 146.5MHz South Wales to Taunton Tests
Posted: Sun Mar 04, 2018 7:44 am
by g0mjw
I don't think I would get away with one of those antennas here. I have a 17 element Tonna and its a bit too large. The DG0VE is a nice implementation of the high power RA module. Unfortunately these modules seem to be going out of production.
Mike