vk1da.net
QRP Hours contest 2011 | Amateur radio with VK1DA
http://vk1da.net/blog/2011/04/10/qrp-hours-contest-2011
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. QRP Hours contest 2011. 10 April, 2011. This is a short contest for QRP operators. It runs for one hour on CW mode, then 1 hour on SSB. A truly easy contest to participate in. All licence classes can participate as QRP (low power) or their ordinary power. The contest was sponsored by the CW operators QRP club. At 1100 UTC the SSB section commenced, operating between 3550 and 3590. Signals were very strong from some sta...
vk1da.net
2.4 GHz transverter success | Amateur radio with VK1DA
http://vk1da.net/blog/2008/11/17/24-ghz-transverter-success
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. 24 GHz transverter success. 17 November, 2008. The 24 GHz transverter has been completed and I used it in the vhf/uhf field day on the weekend of 15/16 November. Construction began on Sunday 9 November with the first components soldered onto the sequencer board, finishing on Friday 14th November when I finally measured the transmitter output power. The 13cm transverter under test. New antennas for 1296 MHz. SOTA – Su...
vk1da.net
RD Contest – State Scoring formula | Amateur radio with VK1DA
http://vk1da.net/blog/2012/03/14/rd-contest-scoring
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. RD Contest – State Scoring formula. 14 March, 2012. Is the RD contest state score formula correct, and is it fair? There has been a lot of concern about the RD contest state score formula, and conjecture about how it can be improved. I have written this to clarify my thoughts and to show others what my analysis of the scoring formula reveals. To analyse the situation we have to start with some assumptions. We find that the...
vkfaq.ampr.org
VKFAQ - Using AM mode on amateur bands
http://vkfaq.ampr.org/operam.php
Amateur Radio in Australia (VKFAQ). WW2 receiver type BC-348. This type of receiver was built for military use and many were sold on the surplus market in the 50s and 60s. They and other similar war surplus receivers were a general coverage receiver covering most of 3-30 MHz in three or four bands, with a highly geared tuning dial and AM selectivity. All tubes. Analog frequency indicator. Next: Low power (QRP) operations. What is Amateur Radio? What are the Licence types? How can I get a licence?
vk1da.net
Equipment sales: name your price | Amateur radio with VK1DA
http://vk1da.net/blog/2009/02/23/equipment-sales-name-your-price
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. Equipment sales: name your price. 23 February, 2009. I have noticed some sellers of used radio equipment make life more difficult than necessary for themselves, by being quite unclear about what they really want for the gear. ie. what is their asking price? Before trying to answer that, let’s consider a few examples of unrealistic pricing or expectations. In other consumer goods no-one would expect anything for a 20 year o...
vk1da.net
VK9NA expedition | Amateur radio with VK1DA
http://vk1da.net/blog?p=172
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. 18 March, 2011. We activated the station every day on 6m as well, from the hotel site. Due to the high winds experienced on the hill we moved the EME station to the Guide Hall where we had been kindly offered the use of the grounds. The 2m EME operation was very successful. Over a hundred contacts were made using JT65 via the FT897 and a laptop computer running the WSJT software. A TE systems amplifier boosted the ...I gre...
vk1da.net
John Moyle Memorial Field day March 2009 | Amateur radio with VK1DA
http://vk1da.net/blog/2009/03/19/john-moyle-memorial-field-day-contest-march-2009
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. John Moyle Memorial Field day March 2009. 19 March, 2009. For this year’s JMFD contest I thought weather and propagation conditions were fairly bleak. The weather was wet and windy to say the least. Many field stations reported having their tents and masts blown down. Using the VK1DA/p and VK3UHF locations from the VHF Logger. Was 2C. No wind gust peak data was available. Operating techniques and problems observed. Amateur...
vk1da.net
Why calling freqs don’t work in vhf contests (IMO) | Amateur radio with VK1DA
http://vk1da.net/blog/2009/05/08/why-calling-freqs-dont-work-in-vhf-contests-imo
Amateur radio with VK1DA. About VK1DA’s blog. Hamradio photos from my flickr site. Why calling freqs don’t work in vhf contests (IMO). 8 May, 2009. I think there is a case for abandoning the calling frequency concept during contests. 1 If all stations want to use one frequency for calling CQ, there must be a queue. Why a queue on a band with hundreds of KHz of free space? 2 If just one station decides to run a contact on that frequency, all others must wait. see 1. John Moyle Memorial Field day March 2009.