At last the rig is complete,in its box and working. Not saying it is completely finished,there will always be improvements to make but it is working well on all bands. The Rx seems very good,better than I expected. The TX is good with adequate power on all bands. The PA stage is [...]
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Testing the RX section of the eight band cw-transceiver produced the following MP3 recording.(Just click on the link and it should play.) 20M SCAF demo The clicks and thumps show when the filter was switched in and out –the effect is quite obvious! The recording made was using an Idiom Press SCAF-1 which I [...] A recent /P trip convinced me that I needed a quick deployment multiband vertical antenna. The 20M ‘squid pole’end fed half wave worked well but I wanted to use other bands. Searching the web produced plans from W3FF for a homebrew Buddistick. (Clicking the the link will download a PDF file.) A trip to [...] Update 13 April 2011 There are now some pages detailing the progress with the project –see this page. Many years ago I wanted to build the G2DAF RX and then a matching TX. Various things stopped me,mostly financial,but the idea to have a completely homebrewed multiband station has remained. Last year I [...] With the weather so bad it is time to stay inside and finish off some projects ready for the /P season next year. Sitting on the windowsill was a lash up end fed half wave tuner that needed a box. The tuner uses a small 365pf airspaced variable which is good to at least 10W [...] During a week of very changeable weather in Wales I managed a couple of /P sessions. Setting up in an NT car park right on the coast produced some very good results. Tuning around the SSB section of 20m produced BH7PFH,VU2DK,VK4TUX,VK2IR,W6CCP,W8XH and on CW W7VV who I think was in QSO with [...] I have just finished building a Small Wonder Labs SW+ 20. Nothing spectacular in that but using it for QSOs yesterday took me back to my first brush with radio. Around 50+ years ago I discovered a box of crystal set parts in my grandfather’s shed. After much haggling I was allowed to have them. [...] I came across the site of AA5TB this week and found his excellent article on end fed half-wave antennas. Like many others I have always thought that it was difficult to match the high impedance of an end fed half-wave to 50 ohms. Not true! After reading the article I made a simple matching unit [...] I recently discovered some photographs of one of my first /P events. The pictures were taken on 3 May 1972 at Burton Dasset hills in South Warwickshire. I think it was a 2m contest. The transmitter was cut from a Pye Cambridge with valves in the RF section and a transistorised modulator. It was supposed [...] The UKSMG have produced a video about their activities watch it here. Six metres is known as ‘the magic band’and as we are just about to enter the 6m season I plan to have a lightweight antenna for /P work this year. Can’t have a decent antenna at home but can make use of [...] | ||
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