(D)ATV with a 25mtr dish on the 7th of November

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pe1itr
Posts: 23
Joined: Tue Jan 21, 2020 10:26 pm

(D)ATV with a 25mtr dish on the 7th of November

Post by pe1itr » Wed Sep 29, 2021 8:58 pm

(D)ATV with a 25mtr dish on the 7th of November

The Dwingeloo telescope is located in JO32ET in Dwingeloo in the Netherlands. It is the home of PI9CAM and is often used for EME.
But this time it is different. Like we did in 2020 this 25mtr dish will be activated for ATV and DATV on Sunday 7th of November, that is during the BATC Activity weekend. We are only allowed to receive the signals, because it is not allowed to TX terrestrial with the dish. We are receiving on 70cm, 23cm, 13cm and with some luck also on 9cm and 6cm.

This activity is a great chance for ATV-ers to enlarge their best distances. The gain of the telescope is enormous:
70c: 37 dB
23c: 47 dB
13c: 52 dB
9c: 55 dB
6c: 69 dB

Our group will be active on Sunday 7th November from 7.00 until 12.00 UTC (8.00 – 13.00 local time). Put it in your agenda!
We like to work as many stations as we can! Communication is done with the chat on https://dxspot.batc.org.uk/ or via the GHz chat on ON4KST http://www.on4kst.info/chat/login.php?band=3 . We ask from stations to show a four digit code.

More information about the telescope on www.camras.nl, more information about the activity via jaap.last@ziggo.nl

Jaap PA0T, Jan, PA3FXB, Erik, PA1ET and Gerard PE1BBI

mccla5214
Posts: 61
Joined: Sun Sep 05, 2021 1:45 am

Re: (D)ATV with a 25mtr dish on the 7th of November

Post by mccla5214 » Thu Sep 30, 2021 6:12 am

Wish I had that antenna, could probably do ATV off moon, 23 cm, 600W transmitter, 18.3MW ERP. Wow :o :o

radiogareth
Posts: 1215
Joined: Wed Jan 06, 2016 9:46 am

Re: (D)ATV with a 25mtr dish on the 7th of November

Post by radiogareth » Thu Sep 30, 2021 7:41 am

What a great opportunity :-). By great fortune I have a 'clear path' between us, just 464km to deal with......but if I set up my QO-100 amp at the base of my pump-up mast, there is a chance......
Gareth

g8gtz
Posts: 1733
Joined: Wed Apr 07, 2010 6:26 pm

Re: (D)ATV with a 25mtr dish on the 7th of November

Post by g8gtz » Thu Sep 30, 2021 8:22 am

Wish I had that antenna, could probably do ATV off moon, 23 cm, 600W transmitter, 18.3MW ERP. Wow
Been there, tried that and failed with the 32mt dish at Goonhilly :-(

See https://batc.org.uk/wp-content/uploads/cq-tv256.pdf for the story and pictures.

73
Noel - G8GTZ

pe1itr
Posts: 23
Joined: Tue Jan 21, 2020 10:26 pm

Re: (D)ATV with a 25mtr dish on the 7th of November

Post by pe1itr » Thu Sep 30, 2021 8:59 am

Wish I had that antenna, could probably do ATV off moon, 23 cm, 600W transmitter, 18.3MW ERP. Wow
We tried this last year, but without success.
TX on 23cm with a 5 meter dish and receiving with the Dwingeloo dish. It was analog ATV. The carrier was good to hear, but when modulated with video it didn't get any further than vague phenomena on the screen.
Theoretically, such a connection should be possible. Perhaps more success with a specially adapted DATV mode.

73 Rob PE1ITR

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