YU7EF EF0606 Yagi build
I had been wanting a better antenna for the SSB portion of 6m for the openings over summer. Having seen how a local amateur built a 2m 11 element YU7EF…
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December 23, 2015
VK7RHF TX up and running
On Friday 18th of Dec, Damien 7SD and myself went to install the VK7RHF transmit site to install "one half" of the repeater. The repeater was installed in the rack,…
December 23, 2015
7DB mod for 5DJ CTCSS Encode
Borrowing the idea from the NHRC-3.1 CTCSS mod I decided to do the same for the VK5DJ controller. The same idea applies, but with a slightly different interface. We take the mute…
December 21, 2015
KL reference 12MHz to 10MHz
The KL series uses a GFS-210W TCXO as a standard reference which operates at 12MHz. There is a "high-stability" option - a GPS-210X which locks with a frequency stability of…
December 9, 2015
A Voting Repeater?
Recently I have acquired a voting system which can be employed into our repeater system in South. Essentially the system continually monitors multiple receivers, both local and remotely over UHF link and…
November 25, 2015
VK7RTC gets a new antenna & VK7RHF update
On Monday 16th of November, Michael 7MRS and myself travelled to Mt.Wellington to replace the single SMD with a Polar 354 6dB vertical. The SMD was removed and the vertical put…
November 17, 2015
7DB mod for CTCSS encode following mute on NHRC-3.1
Today we demonstrate how to mod a C1000 CTCSS encoder to follow the receiver mute on a NHRC-3.1 controlled repeater with noise and CTCSS mute options. Break the track between pins…
November 17, 2015
VK7RHF progress
This last weekend I had some spare time to play with the 10m repeater project. I turned my attention to the receiver side of things to see if I could…
November 4, 2015
VK7RTC Coverage plots
Further to my blog post yesterday, I showed the example of the Southern Outlet as a fringe area of coverage from VK7RTC. On Mt.Wellington there are two "sites". We can call…
October 27, 2015
VK7RTC gets a power upgrade, hopefully a coverage one soon
On Friday 23rd, I travelled up to Mt.Wellington to do a power upgrade in the form of a battery install. A switch mode 40A power supply had been used since…
October 26, 2015