Difference between revisions of "Technical topics for ATV repeater builders"
Jump to navigation
Jump to search
(→70cms) |
|||
| (2 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
This is a collection of articles designed specifically with the ATV repeater builder in mind. | 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. | [[: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! | Repeater aerials are difficult as they need to be horizontal omni! | ||
===70cms=== | ===70cms=== | ||
| − | |||
| − | |||
| − | |||
| − | |||
G8GTZ built the VHF comms Big wheel or clover leaf design made out of 8mm copper brake pipe for GB3HV | G8GTZ built the VHF comms Big wheel or clover leaf design made out of 8mm copper brake pipe for GB3HV | ||
| Line 33: | Line 29: | ||
[[File:IMG_0686.JPG|400px]] | [[File:IMG_0686.JPG|400px]] | ||
| − | + | Other designs available are: | |
| + | |||
| + | https://do7psl.de/portfolio-item/big-wheel-vhf-and-uhf/ | ||
| + | |||
| + | https://vk6ysf.com/435mhz_5_petal_cloverleaf_antenna.htm | ||
| + | |||
| + | And you can buy one, which is what the ZZ team did | ||
| + | |||
| + | [[File:IMG_0619.JPG|400px]] | ||
| + | |||
| + | == Filters == | ||
[http://www.id-elektronik.de/en/produkte/filter/index.htm ID Elektronik GMBH] make some amazing filters and duplexers for 23cms and above - you can't build them for the price. | [http://www.id-elektronik.de/en/produkte/filter/index.htm ID Elektronik GMBH] make some amazing filters and duplexers for 23cms and above - you can't build them for the price. | ||
Revision as of 07:51, 6 July 2018
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
G8GTZ built the VHF comms Big wheel or clover leaf design made out of 8mm copper brake pipe for GB3HV
Other designs available are:
https://do7psl.de/portfolio-item/big-wheel-vhf-and-uhf/
https://vk6ysf.com/435mhz_5_petal_cloverleaf_antenna.htm
And you can buy one, which is what the ZZ team did
Filters
ID Elektronik GMBH make some amazing filters and duplexers for 23cms and above - you can't build them for the price.