Downsizing? Clearing out stuff you don't need? Want to make room for new projects? Tips here!
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https://www.youtube.com/watch?v=DpGsDxd0j-I
Position reports. Recorded on 6516 kHz 1705 hrs local. Using AR1780 portable receiver.
NOTE: LOW RESOLUTION DUE TO LONG VIDEO. PRESENTED MAINLY FOR THE AUDIO.
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https://www.youtube.com/watch?v=hRQ5aPf0zGE
Comparing a RTL-SDR with a Quansheng UV-K5 (with IJV 3.13 firmware that tunes up to 1300 MHz).
Purchase a genuine RTL-SDR via eBay here: https://ebay.us/su3Ncv
Purchase your own UV-K5 via eBay here: https://ebay.us/Ca4YzA
Bi-Quad antenna details: https://vk1nam.wordpress.com/2017/12/27/construction-of-a-23cm-1296-mhz-bi-quad-antenna/
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
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https://www.youtube.com/watch?v=PO0y_5YJ3_Q
An Open House Melbourne event. Information on the Telstra Museum http://telstramuseum.com.au/
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https://www.youtube.com/watch?v=0i278hFPwvI
Using two capacitors and a potentiometer to form a continuously variable audio tone control. Can be useful on receivers to provide some audio selectivity. Also applications in audio.
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https://www.youtube.com/watch?v=cBHbD1SJQyk
WSPR can work with inefficient antennas. But what if you use a good antenna - such as a half wavelength vertical? Video shows a test with a kite supported wire antenna from a local park. Exploiting greyline propagation, 200mW on 7 MHz is sufficient to be spotted as far away as North America and the Canary Islands.
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https://www.youtube.com/watch?v=SgN2FcMYL80
A Sunday bike ride to my nearest VKFF-qualifying park (and the only one within 10km). What do I work on 40m SSB QRP?
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https://www.youtube.com/watch?v=iVVmuCp__Wk
Using a 433 MHz data module for a foxhunt transmitter. Uses less than $20 of parts. Over 500m range. Output power about 2mW.
SPARC's website has some ideas for receivers and antennas. https://sparc.asn.au/2022/04/30/foxhunt_433/
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
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https://www.youtube.com/watch?v=8e__9awr5B0