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| To: | RSGB LF Group <[email protected]> |
|---|---|
| Subject: | LF: Mixers - thanks for info. |
| From: | Wolf DL4YHF <[email protected]> |
| Date: | Wed, 05 Jan 2005 22:12:21 +0100 |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Mozilla Thunderbird 0.9 (Windows/20041103) |
Many thanks Brian, Gary, Alberto and Dave, and of course Andy who wrote
the initial message,
> [from G4JNT] I did once make some measurements using an FST3125 bus switch > in a simple a double balanced mixer. >Exactly that was I was looking for - a fast "bus" switch with low on-resistance. Hopefully easier to find than some Plessey ICs.. I will try this in an image-cancelling mixer for my next LF exciter, maybe also in a new receiver. So far, a cheap 4.4336119 MHz crystal, a CMOS 4060 oscillator/divider, and an EXOR gate are all it takes to generate an 138.5 kHz quadrature signal to the two mixers... Regards, Wolf DL4YHF . |
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