23 December 2008

NDB CAS

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Back to an old passion: VLF NDB hunting. But this time, "live". Right next to a swimming pool I noticed a weird tower with a capac...

FT817 CAT interface, a clarification on the wipeout warning

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So far I have noticed very little interest in my keypad. I hope it is not because of the explicit warning about possible radio settings wipe...
09 December 2008

Surplus source for CAT cable

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Since soldering MiniDin8 connectors is a tough job, I have found out that in the past there were two commercial applications using these cab...
05 December 2008

FT817 keypad - a suggested assembly

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This is the first (and last) keypad I made not for personal use. It is on a veroboard/perfboard and takes about 5x5 cm. I have used a 4 way ...
28 November 2008

Inside Terminator's eye

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Don't panic. After you've seen the optical receiving system, the transmitter will look horrible. The plate is a CD-ROM player cover,...
26 November 2008

Terminator's eye

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Finally we've made it! Simone and I could arrange a first complete equipment test. The OPT201 receiver had been boxed (plastic) and prep...
25 November 2008

FT817 keypad - real memories, not presets

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It is still beta-code, but the keypad is now able to remember your favorite frequencies rather than offer you my factory programmed preset...
20 November 2008

FT817 keypad - automatic whistle

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Two more functions have been tested: - up/down scan (mimics microphone up/dn buttons), with stop too - "quick tune" for automati...