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06/07/2011 - Our new SRC X80 hf multiband aerial!

This week we tested the clubs new our new SRC X80 hf multiband aerial with promising results.

We could clearly hear an American station on 10 metres FM using the FT101Z transceiver.

We hope to get a bracket for the antenna so that it can be sited permanently.

Many thanks to Tim G7JYQ for the loan of the lighting tripod to mount the antenna during the test.

15/06/2011 - Diode radios - aka 'crystal sets'.

The club invited members to bring along crystal sets that they have built over the years, along with some more modern commercial ones from Tony M0SHA













Roger G4GGI showed a crystal set (Teletron HAX coil and GEX34 diode) and a one valve set he built about 50 years back.

01/06/2011 - Tony M0SHA gave a talk on PAT testing

Tony gave a very interesting talk on PAT testing and demonstrated the BattPAT testing unit.

He gave a demonstration of how to test Class I metal, Class I plastic and Class II devices and what to look out for when making a test such as appliance condition and rating plates.




Please speak to Tony if you require him to carry out any testing for you.

04/05/2011 - The club hosted another of our popular show and tell evenings featuring:

Andy M0ULF - Digital power/swr meter kit

Tony M0SHA - Collectable TV sets - Sony TV9-90UB (displaying 405 line picture here) and Sinclair Microvision MTVB1

James M0VLF - VLF power oscillator with heating effects

16/02/2011 - Homebrew Antenna Tuner by James Sales M0VLF

James, M0VLF, gave a brief talk on the construction of his homebrew antenna tuner for HF.

This has been tested and has showed promising results, and only requires an air spaced coil, tuning capacitor and a rotary switch - the most difficult and expensive part to source is the enclosure itself!

M0SHA has a circuit diagram available for those interested in this easy to build tuner.

Feel free to contact James or Tony for construction / design tips at one of the meetings.

James, with his tuner.

02/02/2011 - Optical Communications by Tony Fell M0SHA

Tony, M0SHA, kindly gave us a very interesting talk on optical communications using a homebrew tranceiver which demonstrated the design , setup and operation of the mode.

He also had a very interesting display of various optoelectronic devices that can be pressed into service to produce a good quality piece of equipment for DX work.

For those that are interested in building such a device, please contact Tony directly at one of the club meetings.

For further information also see the excellent Blue Haze website: http://www.bluehaze.com.au/modlight/index.html