Category Archives: equipment

Microwave portable operations

Posted on 2 July, 2011 by andrew

Recently read some material published by Roy VK4ZQ about his portable station which can be operated on all main amateur bands up to 10 GHz.  Worth a read.

Posted in Amateur Radio, contests, equipment, field and portable, Radio | Tagged , , | Comments Off

Experimenting with WSPR

Posted on 19 April, 2011 by andrew

WSPR mode is used by a world wide beacon network. Receiving stations log the stations received on a website for all to see. Continue reading →

Posted in Amateur Radio, digital signal processing (DSP), equipment, Internet, Radio | Tagged , , , , | Comments Off

VK9NA expedition

Posted on 18 March, 2011 by andrew

VK9NA dxpedition on VHF/UHF/microwave succeeded in breaking some Australian records and in putting Norfolk Island onto 2m EME. Continue reading →

Posted in Amateur Radio, equipment, Internet, Radio | Tagged , , , , , , , , | Comments Off

Inverter Generator 1KW

Posted on 17 February, 2010 by andrew

The generator that caused me so much grief in the November contest was returned to the seller, by arrangement. The seller refunded my purchase price. He was unable to provide any certainty that it would be reliable for use at … Continue reading →

Posted in Amateur Radio, equipment, field and portable | Tagged , , | Comments Off

Summer 2010 VHF/UHF Field Day

Posted on 12 February, 2010 by andrew

The January 2010 event was much more successful for me than the Spring field day about 6 weeks earlier. This time Dale VK1DSH and I operated as a multiop station on 50, 144, 432, 1296, 2403 and 10368 MHz. Successes: … Continue reading →

Posted in Amateur Radio, contests, equipment, field and portable, Internet, Radio | Tagged , , , | Comments Off

Spring field day a wipeout for me

Posted on 1 December, 2009 by andrew

Spring VHF/UHF field day for 2009 a washout and disappointment for VK1DA. Continue reading →

Posted in Amateur Radio, contests, equipment, field and portable | Tagged , , , , , , | Comments Off

Generator blues

Posted on 18 November, 2009 by andrew

GMC 950W generator fails to start, now repaired and hopefully usable again. Continue reading →

Posted in Amateur Radio, equipment, field and portable | Tagged , , , , , | Comments Off

More about the Alligator Hat

Posted on 10 June, 2009 by andrew

Attaching a short wire to a helical lowers its resonant frequency. Moving the wire higher up the helical increases the loading effect. Continue reading →

Posted in Amateur Radio, equipment, field and portable | Tagged , , , , | Comments Off

Equipment sales: name your price

Posted on 23 February, 2009 by andrew

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? This is surprising because anyone … Continue reading →

Posted in Amateur Radio, equipment | Tagged , , | Comments Off