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Old 16th Sep 2017, 8:28 am   #47
eddie_ce
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Join Date: Aug 2010
Location: nr. Hannover, Germany
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Default Re: Memories and other stories from Pye etc PMR engineers.

Robin, re post #41

I used to come across quite a few 2m-Band (168-174 MHz) handhelds which were quite insensitive. Try as I might, I could not get the front end aligned to spec. Luckily I found the cause after an unmarked police vehicle turned up and the officer duly opened the boot to take out a combination of handheld with a big mag-mount quarterwave which was stored on top of the aluminium case of the radio in its storage box.


After much faffing around, I found that replacing the four tuning slugs in the front end and subsequent realignment brought the front end up to or better than manufacturers spec. Since then I kept a considerable stock of cores as this fault presented itself on serveral more occasions. No one would believe that it was not a good idea to store the mag-mount base on top of the radio because it magnetized the tuning slugs in the radio.
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