[Elecraft] VFO calibration - off air standard

[Dave]

If any of you guys want a circuit for an easy to make 60 KHz off air
standard, drop me an e-mail off line. I've been using one for a year and it
works fine, the outputs are 1 MHz and 10 MHz. Cost was around 40 UK pounds
in parts (that's around $60 US) and would include case, paint and plug top
PSU. There's not much to making one, but you do need a strongish signal on
60 KHz to drive it, I use MSF in the UK, but it all depends on where you
live as to how useful it would be.

Dave, G4AON
K2 #1892, K1 #1154

----- Original Message -----
From: "Ron D'Eau Claire" <rondec@easystreet.com>
To: <elecraft@mailman.qth.net>
Sent: Sunday, December 29, 2002 9:14 PM
Subject: RE: [Elecraft] VFO calibration


> Helm is quite right about WWV not being the "absolute" standard for
> frequency and time.
>
> All serious measurement system calibration in the USA is traceable to
> the National Institute of Standards and Technology (NIST). They are
> responsible for providing the standards against which every sort of
> measurement that is made in the USA can be compared, including frequency
<SNIP>