Wednesday, January 26, 2022

Image of James Webb Space Telescope In Position at L2

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https://www.inverse.com/science/james-webb-photo-final A very nice shot of the James Webb Space Telescope, nearly 1 million miles away, take...
2 comments:
Friday, January 21, 2022

"From Crystal Sets to Sideband" -- A Great Book about Homebrew Radio by Frank Harris K0IYE (FREE!)

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I first came across the above picture of K0IYE's inspirational, completely homebrew station many years ago in the pages of "World R...
8 comments:
Thursday, January 20, 2022

Mike WU2D on VFOs (with additional Tribal Knowledge from Frank Harris K0IYE)

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Great stuff from Mike and from Frank Harris K0IYE .   But when I put the VFO in a box, I usually try to put the frequency determining compon...
Wednesday, January 12, 2022

Looking at the Galaxy's Spiral Arms with a Dongle, a Raspberry Pi,and a Homebrew Antenna

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I told Farhan that the world NEEDS a homebrew Raspberry Pi observatory at Lamakaan in Hyderabad. They are on it.   This looks very do-able. ...
2 comments:
Monday, January 10, 2022

Exorcism Not Quite Complete -- Thinking of Other Options

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As often happens, I may have jumped the gun in declaring the exorcism of my 17 meter transmitter to be a success. As readers of this blog wi...
11 comments:
Thursday, January 6, 2022

Roy Lewallen W7EL Gives Us All EZNEC for FREE! Thanks Roy! (Video)

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Free download here:  https://www.eznec.com/ Thanks to Roy Lewallen W7EL for this great gift to the amateur radio community.   And thanks to ...
Tuesday, January 4, 2022

Exorcism Completed! Getting Rid of the Spur in my 17 meter SSB Transmitter using a TinySA (video)

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To re-cap:  The problem became evident when trying to "net" or "spot" my transmitter onto my receive frequency.   Arou...
5 comments:
Monday, January 3, 2022

1BCG -- The 100th Anniversary of the Trans-Atlantic Test

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Thanks to the Antique Wireless Association for this really wonderful video, and for their involvement in the 100th anniversary event.  Speci...
Sunday, January 2, 2022

SolderSpace! N2CQR from Geostationary Orbit

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  Farhan VU2ESE kindly invited us to talk to his Lamakaan Amateur Radio Club.  They did a simulcast through the QO-100 Geostationary Satelli...
1 comment:
Saturday, January 1, 2022

Straight Key Night 2021/2022 (Videos) -- Happy New Year!

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I made a few contacts on 40 meter CW using my old Hallicrafters HT-37 and Drake 2-B.  Happy New Year to all!  73   Bill 

An Interview with Paul Lutus (Audio)

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https://corecursive.com/remote-developer/ Thanks to Bob Scott KD4EBM for alerting us to this wonderful interview. 
1 comment:
Friday, December 31, 2021

Troubleshooting Apollo: 23 MHz Crystals in a NASA Ground Receiver

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More amazing Apollo stuff from CuriousMarc.  Here we see them struggling to find the proper frequency for one of the oscillators in a dual c...