KA7OEI's blog

Random musings - usually on a technical (nerdy) subject - perhaps related to amateur radio and things found at ka7oei.com and modulatedlight.org. No AI is used to generate this content.

Wednesday, March 24, 2021

Using the QRP Labs "SoftRock" as a possible crystal replacement in "rock bound" VHF and UHF radios

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As technology moves on, it is getting more difficult to find custom-made quartz crystals. Why would one need a quartz crystal in these day...

2 comments:

Sunday, February 14, 2021

The appearance of the "Chinese Woodpecker" on the HF bands

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Listening about on 40 meters this morning I heard a familiar sound - the "putt-putt-putt" of what sounded very much like the infam...

Sunday, February 7, 2021

RFI (Radio Frequency Interference) sleuthing with the TinySA - Part 1: The gear

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Although focused on the use of the TinySA, the techniques and equipment described in this article may be applied to using any other type of ...

9 comments:

Thursday, January 28, 2021

Using surplus GE Mastr II and Exec II transmitters as amateur radio beacon transmitters

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Back in 2000, a friend of mine (Glen, WA7X) wanted to place VHF and UHF propagation beacons at his cabin located in remote central Utah. O...

Sunday, December 20, 2020

Locking the Icom IC-910H to an external 10 MHz (GPS) reference

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In late 2009 my friend Bryan, W7CBM, came to me with a project that he had in mind: "Can we lock my Icom IC-910H to my 'Z-box'...

6 comments:

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