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
2m WSPR to VK4 – 26/11/16
On Friday 25th of November 2016, Sporadic E opened up with huge signals on 6 metres initially, then extending to 2m around midday. VK3's were regularly working VK4 on 144.1,…
November 26, 2016
XRef-FT installation in a FT-897D
I recently sold my IC-7000 to "upgrade?" to a FT-897D. This radio seemed to be more suited for my needs of using digital modes, including WSPR and portability (current consumption).…
November 22, 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
Using the Sanwu SW-HF07 USB sound adaptor for AllstarLink/VKLink nodes
A short pictorial demonstrating modifications to the Sanwu SW-HF07 USB sound adapter for use with VKLink nodes. A search on eBay finds what appears to be a suitable CM108 based USB…
July 3, 2016
Stationmaster MK1 5/8 conversion on 6m
Having already had limited success with converting the Stationmaster MK1 to 6m, I decided to try something different... turning it into a 5/8 vertical. I modelled a 5/8 in MMANA.…
January 24, 2016
My First EME Contact!
Last Friday night (15th), I decided to do attempt some EME contacts with JT65. My station is quite modest to say the least, only 100W to 1 x YU7EF 11…
January 16, 2016