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LF: RE: Simple, low cost, 8.970kHz stable source?

from [Rik Strobbe] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: LF: RE: Simple, low cost, 8.970kHz stable source?
From: Rik Strobbe <[email protected]>
Date: Tue, 26 Oct 2010 20:03:35 +0200
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Thread-topic: Simple, low cost, 8.970kHz stable source?
Roger,
 
an easy (and cheap way) might be CB crystals. Most are 3rd overtone in the range of 26965-27405kHz (= 8988-9135kHz xtal frequency). Divided by 1024 (eg. using a 74HC4060 as oscillator / divider) you get 8777-8921Hz.
 
73, Rik  ON7YD - OR7T
 
Van: [email protected] [[email protected]] namens Roger Lapthorn [[email protected]]
Verzonden: dinsdag 26 oktober 2010 19:04
Aan: [email protected]
Onderwerp: LF: Simple, low cost, 8.970kHz stable source?

What do people think is the simplest, lowest cost, way of generating a stable 8.970kHz frequency that does not require a PC when running? I thought of an HF crystal divided down by 256 (from 2.296320MHz), but have you tried to buy a "made to order" crystal lately?

73
Roger G3XBM
--
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