Bank Holiday Activity

The place to discuss reduced bandwidth fast scan amateur television on 70cms and below
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g0mjw
Posts: 888
Joined: Sat Sep 20, 2014 9:15 am

Bank Holiday Activity

Post by g0mjw » Mon May 30, 2016 8:42 am

I am all set up for 146.5MHz RBDATV in IO83. My site is excellent to the South and useless to the North.

2m - 9 element yagi, TX 2W, nice and clean as it needs to be up here, sufficient for a 25W EIRP. I can still receive on 144.750 while transmitting on 146.5MHz, but not vice versa. I can receive my own DATV transmissions but there isn't anyone else around locally to test sensitivity with. 70cms should also work, 5W to a 19 element

23cms is a bit limited - it works, with 5W but the antenna is a small double quad and its quite low. So only good for local QSOs.

Mike G0MJW

G4EWJ
Posts: 711
Joined: Wed Feb 17, 2010 10:11 am

Re: Bank Holiday Activity

Post by G4EWJ » Mon May 30, 2016 10:51 am

I'll try to find a way of temporarily lashing the 2m beam to the pole holding the 23cm antenna during the week. I'll bring the 70cm converter to NWR on Thursday.

Brian

g0mjw
Posts: 888
Joined: Sat Sep 20, 2014 9:15 am

Re: Bank Holiday Activity

Post by g0mjw » Mon May 30, 2016 11:55 am

Hi Brian,

Very good - chances are I will be back down south on Thursday.

Mike

g8gtz
Posts: 1156
Joined: Wed Apr 07, 2010 6:26 pm

Re: Bank Holiday Activity

Post by g8gtz » Mon May 30, 2016 6:06 pm

I will be going out on Tuesday afternoon to IO91JH to try to work Mike on 146 MHz.

Be good to work anyone else who is around...

Noel - G8GTZ

G4EWJ
Posts: 711
Joined: Wed Feb 17, 2010 10:11 am

Re: Bank Holiday Activity

Post by G4EWJ » Wed Jun 01, 2016 7:33 pm

It's a bit breezy here today, so I'll have to cancel the temporary antenna setup.

Brian

g0mjw
Posts: 888
Joined: Sat Sep 20, 2014 9:15 am

Re: Bank Holiday Activity

Post by g0mjw » Thu Jun 02, 2016 4:32 pm

Post diluvian interlude, Noel and I tried 146.5 DATV over a 268km path, Winter Hill IO83RO to Hannington IO91JH. While we could easily work each other on NBFM, signals were not quite strong enough for a carrier lock. In my view, the 25W EIRP just isn't enough. It will take a good lift or a better path to break 250km.

Thanks to Noel for trying, twice.

Mile

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