10M – 29MHz noise mute
Since installing the 10m repeater VK7RHF, the receiver has at times suffered during sporadic E openings noise, and what seems like AM modulated signals. The assumption is that this is…
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December 25, 2016
VK7RHF low power mod
Having removed VK7RHF's transmitter to test at a solar powered site, it was necessary to test standby current consumption. Basic current measurements were made. 750mA was measured as standby. 13A…
October 23, 2016
More simulcasting with the RTCM/VOTER
Further to previous posts about the KL Reference 12MHz to 10MHz and Simulcast Experiments, I had finally got around to purchasing a BG7TBL GPS receiver module due to some motivation in a…
September 15, 2016
VK7RVP gets 2m
On 6/8/16 VK7's DB, ML and HH traveled to St.Valentines Peak (VK7RVP). The purpose of the visit was to check battery voltage levels, take measurements, install a 2m repeater and…
August 7, 2016
Converting the Hamtronics R303 to frequency agile
The Hamtronics R303 can be ordered with up to 4 frequencies programmed, which are selectable with jumpers. When I ordered my R303, I had ordered CCARC frequencies to be programmed. Now that…
July 19, 2016
Simulcast Experiments
Further to my earlier post on the use of a 10MHz reference in the KL, I've converted two KL70 exciters to 6m and fed them the same audio with both exciters…
December 26, 2015
VK7RVP Gets Its Six Metre Repeater
On Tuesday 22/12/15 4 persons made the trip to St Valentines Peak. Those persons being Graeme and John Rand, the helicopter pilot David, and myself. The purpose of the trip…
December 24, 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