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#1
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PS:
High 1st IFs like 55.845 MHz aren't quite uncritical, particularly with very compact receivers - you easily get leakage around the 1st IF crystal filter. You can observe this very nicely with Sony's ICF-SW7600 (-910 kHz rejection ~20 dB) or ICF-SW7600G/GR (~30-40 dB rejection). It would be interesting to know the performance of the little ICF-SW07 in this regard. Stephan -- Meine Andere Seite: http://stephan.win31.de/ PC#6: i440BX, 1xP3-500E, 512 MiB, 18+80 GB, R9k AGP 64 MiB, 110W This is a SCSI-inside, Legacy-plus, TCPA-free computer ![]() Mail to From: not read, see homepg. | Real gelesene Mailadr. s. Homep. |
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#2
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I was disappointed in the strong images in my FP200. Then I realized that
should there be interference on the desired frequency, the image just might be in the clear for solid listening. G Bill, K5BY |
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#3
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High 1st IFs like 55.845 MHz aren't quite uncritical, particularly with
very compact receivers That's high? ![]() My radio's first IF is 240.1 MHZ. you easily get leakage around the 1st IF crystal filter. Good information. I didn't know that before. And just the other year or so, I didn't know anything about IF frequencies or radio image frequencies. I still don't know much about them. |
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