Posts: 825
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OK, more questions.
To align FM radios do I have to have a sweep generator? Can it be done with an RF generator?
If I need one, is this what I want? :
http://www.ebay.com/itm/BK-Precision-302...232ae274b1
Thanks
Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org
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City: Irvington, NY
It depends on the receiver. Some manufacturers specify a sweep alignment with a sweep generator and scope, others just use a simple peaking procedure and zero setting the discriminator output with an on frequency IF signal from a usual RF generator.
A lot depends if the IF transformers are overcoupled for wide bandwidth. Although I have a couple of sweep generators, I have usually been able to do a pretty fair job without using them for FM receiver alignment.
The generator on ebay won't work for aligning a broadcast FM receiver. It is a low frequency sweep/function generator and only goes up to 2 MHz. You need a 10.7 MHz sweep signal.
(This post was last modified: 05-16-2013, 11:35 AM by
Mondial.)
Posts: 825
Threads: 113
Joined: Aug 2012
City: The Villages
State, Province, Country: Florida
Thanks. I'm glad I asked.
Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org