Maintenance Hawequa 20201223

Fitting 6m (51.550) simplex link to existing repeater system.

Sometime back it was decided that it will be a worthwhile experiment to fit a 6m simplex link to the existing VHF/UHF repeater system on Hawekwa, above Paarl.

The intention is for local stations to experience some 6m activity but also for distance stations to make use of specific propagation methods to access the VHF/UHF repeater system in Cape Town.

Previously the radio was programmed and the necessary cables made up and installed on site by Jan ZS1VDV.

The missing part was a proper 6m antenna.

On Wednesday 23 December David ZS1DDK, Mike ZS1TAF and Rassie ZS1YT left home at about 5h30 to do the necessary installation of the antenna.

Arrived on site at 7h20.  Outside temperature 11°C and completely over cast.  (At the foot of the mountain it was 23°C with some clouds.)

The site covered in cloud this morning

David did some homework by installing supports to the antenna as the site is well known for wind speeds of up to 150km/h

Whilst Mike and David installed the antenna Rassie got the SWR meter and cables out for the testing of the antenna.

ZS1TAF on the tower

The SWR checked at 1,2:1 and on the air tests followed. A number of stations called in on either the 145.650 repeater or the 51.550 simplex link and in both directions the 6m link was operating well.

The party left at about 9h30 and returned home.

The final installation

Thank you to the following people for sponsoring MONEY, TIME and KNOWLEDGE:

6m Radio      Members of Boland ARK

6m S/S folded dipole antenna and brackets:     David ZS1DDK

Setting up of radio and linking cables:     Jan ZS1VDV

Climbing the tower in wet conditions:      Mike ZS1TAF

Travelling: ZS1DDK, ZS1TAF, ZS1YT.