Homebrew UHF Antenna for Amateur Satelllite.

Below is my on going 12 element UHF satellite base antenna for amateur satellite operation that will pair with Diamond A144s10 VHF antenna.

Material recycled from TV antenna.

Looks like commercial UHF antenna. Actually is a homebrewed antenna.

Resonant at 435MHz.

Joint Maintenance team to 9M4RBK

On the 2 August 2008, I along with 9M6TK and 9W6JJM went up to Laban Rata located +-3000m up near the Mount Kinabalu's Peak to repair Borneo Amateur Radio Club's repeater which is 9M4RBK.

What we did is we fit in a set of new repeater Kenwood TKR-750 to replace the Motorola pair.


Division of job:


9M6TK(Timothy) carried out repeater replacement, rearrangement of cabling.
9W6JJM(Jasper) carried out repeater's antenna physical check.
9M6WST(James) carried out repeater's duplexer retune.

Antenna SWR is 1.2:1 and with duplexer's lost, total output is 18watt.


Coverage test done on the night of 2/8/2008 with a 2m net run by 9W6HI(net manager). Many stations checked in to the net from else where of Sabah, Brunei and via echolink.


Mission success.



The maintenance team