EMDRC Clubrooms Friday 15th July - Digital ATV Super night.

[VK3ER]

EMDRC Clubroom Meeting - Friday 15th July - Digital ATV Super night.

http://www.emdrc.com.au/ has all the details and directions to the clubroom, visitors always welcome.

Friday night 15th July, Peter VK3BFG will give a talk on ATV. He will be covering the ways in which amateurs may enter the field of ATV and DATV. In particular he will demonstrate the versatile DATV Express running on an Odroid Mini Computer and also the operation of a Minituioner . He will show a QPSK signal on a Spectrum Analyser and also a Constellation display and demonstrate the effects of non-linearities in RF amplifiers as the power output is increased on both displays.

We will have a live TV transmission of the event over VK3RTV and BATC with Jack VK3WWW, Damian VK3KQ and Ralph VK3LL having a multi-camera set up and direct computer feeds to a mixer driving the Club’s DATV Transmitter through to VK3RTV. This will also be Broadcast over youtube (at the link below) around the world, with relays on ATV repeaters in Brisbane, Sydney, Gosford, and Port Pirie and also relayed around the North coast of Tassie and many more places

1. Studio is set up on the top floor of the clubrooms Friday afternoon.
2. VK3ER has a DVB-S digital television system in the rack in the rooms below.
3. 8 PM ATV Presentation on ATV.
4. VK3ER transmits a DVB-S encoded digital television signal to VK3RTV Mount Dandenong.
5. VK3RTV re-broadcasts this signal using DVB-T all around Melbourne. VK3RTV is received at the QTH of VK3LL and sent by a wideband internet upload to Youtube.
6. All relay stations take the Youtube feed and retransmit the signal to their local Repeater.

Relays to Local Repeaters :

VK2RTS Sydney (Via Chris VK32CRJ)
VK2RTG Gosford (via Victor VK2BTV)
VK4RMG Brisbane (via Richard VK4XRL)
VK5RDC Port Pirie (via David VK5DMC)
++ many more around the world.

You can watch the night live on ATV via the above, or on Youtube at https://youtu.be/MAdgzx6nOCA

come visit and see how easy it is to get on DATV!

[VK3BQ]

This coming Friday night, 15th July, at our Clubroom’s in Burwood, 7:30pm with an 8pm meeting Start.

ATV Super Night (take#2)

The re-run of my ATV Presentation at the EMDRC is scheduled for July 15. This is the re-scheduled ATV broadcast from the Eastern and Mountain Districts Radio Club (EMDRC), and broadcast live on VK3RTV-1.

Peter Cossins VK3BFG will be covering ‘ How to get on to ATV’ with an emphasis on DATV. He will demonstrate the DATV Express operating from a small Odroid Micro Computer and also the Minituioner Satellite Receiver with its innovative software developed by Jean Pierre F6DZP displaying Constellation, MER etc., the use of a PIPO operating the DATV Express under Windows (hopefully) and will demonstrate IMD in a Linear Amplifier and how quickly it develops well ahead of absolute saturation.

Confirmed relays will occur through VK2, VK3, VK4, VK5 and VK7 and internationally. The Live stream starts around 6pm (local) and the presentation proper begins at 8:00pm.

You can watch it live on the night on the below Youtube stream! https://youtu.be/MAdgzx6nOCA but its better in person.


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[VK4EA]

Nice pictures, thanks heaps

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[VK3XL]

After listening to a podcast where Art W8RMC was interviewed ( one of the main ATV guys in the US) I decided I should get my ATV RX setup working. I have had all the necessary bits for a while , I just hadn't had the motivation to hook it all up. I also heard at Gippstech that there was going to be a session on ATV up on the Melbourne ATV repeater tonight, so I made the effort.
Well done to all involved, what an informative presentation that was tonight.

My RX setup consists of a Jaycar SD set top box (on sale for $19 a year or so ago). The antenna is a UHF tv Yagi (19 elements i think) that is blocked by some large gum trees in the direction of the repeater. The output from the set top box fed to a data projector which projected the image onto the wall of the shack. The image was about 2m wide and 1.5m high.... Not bad for a rushed setup. The pix from the repeater were almost 100%. I did get a few pixels in the picture from time to time, but I would have rated it at 99.99% error free copy.

Again well done to all involved

[VK3BQ]

For those interested the YouTube feed is saved here https://youtu.be/MAdgzx6nOCA
Ralph VK3LL picked up the mic about 1hr 50minutes in. Peter commenced at about 2 hours 18minutes in.
Thanks for all the reports coming in they were all well received.


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