Technical topics for ATV repeater builders

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Revision as of 07:50, 6 July 2018 by G8GTZ (talk | contribs)
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This is a collection of articles designed specifically with the ATV repeater builder in mind.

Receivers

File:SL30 lock detect.pdf - How to obtain a lock indication from the Comag SL30 receiver.

Transmitters

Logic

Antennas

Repeater aerials are difficult as they need to be horizontal omni!

70cms

https://do7psl.de/portfolio-item/big-wheel-vhf-and-uhf/

https://vk6ysf.com/435mhz_5_petal_cloverleaf_antenna.htm

G8GTZ built the VHF comms Big wheel or clover leaf design made out of 8mm copper brake pipe for GB3HV

VHF Comms 2-94 article.jpg

VHF Comms 2-94.jpg

008.JPG

012.JPG

IMG 0686.JPG

Filters

ID Elektronik GMBH make some amazing filters and duplexers for 23cms and above - you can't build them for the price.

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