[Skimmertalk] [RBN-OPS] RBN nodes using GPS-disciplined/other primary frequency standard?

[Dai NAGAKURA]

de JF2IWL

My external clock of QS1R is made with  MV89 second hand 10MHz OCXO
It is multipiled x 12.5 by 74ALS04 PLL inverter

My friend ( He is a technician of Nippon Telecom) made it for me .
He give assurance under 1mHz at 125MHz without GPS

I will calibrate it future by his calibrated freqency counter periodically.

Dai JF2IWL




On Mon, 12 Oct 2015 08:51:53 -0400
"Pete Smith N4ZR n4zr at contesting.com [RBN-OPS]" <RBN-OPS at yahoogroups.com> wrote:

> To help us update our information, would you -please drop me a note 
> indicating whether you are using anything other than the QS1R's internal 
> clock to calibrate the frequency of your RBN spots, and, if so, what you 
> are using?  I know I've corresponded with some of you about this, but 
> would appreciate a quick answer nonetheless, to make sure our listing is 
> complete.
> 
> Thank you!
> 
> -- 
> 
> 73, Pete N4ZR
> Download the new N1MM Logger+ at
> <http://N1MM.hamdocs.com>. Check
> out the Reverse Beacon Network at
> <http://reversebeacon.net>, now
> spotting RTTY activity worldwide.
> For spots, please use your favorite
> "retail" DX cluster.
> 

-- 
Dai NAGAKURA <ndai at cameo.plala.or.jp>