[time-nuts] Reference source 1E10^8 only ...Ideas

[Mark Spencer]

I use the 10 mhz signal from a simple GPSDO for this application.   I suspect 
that doppler shift would prevent you from consistenly getting the accuracy you 
are looking for from the carrier of  WWVH at your location.  


Regards
Mark Spencer

----- Original Message ----
From: Don Collie jnr <nccollie at vodafone.co.nz>
To: time-nuts at febo.com
Sent: Sat, July 24, 2010 5:33:08 AM
Subject: [time-nuts] Reference source 1E10^8 only ...Ideas

I need a frequency reference for my frequency counters, it needs to be accurate 
to at least +or- 1 part in 10,000,000. 

!0MHz would be OK, but also 5, or 1. Due to technical "improvements", the 
4.43361875 MHz colour subcarrier which is available on the analogue TV system 
here in New Zealand, is no longer referenced to a Rubidium standard, and can be 
about +,- 1Hz in error. I have a communications receiver, and have been thinking 
of using this with Lyssajous 

figures on an oscilloscope, with the receiver tuned to WWVH in Hawaii, but a GPS 
might be a possability, if there is satellite coverage here in Invercargill, 
southern NZ. Bearing in mind I don`t need extreme accuracy, what is my best 
option, please?.................................................Don.
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