Don, A GPSDO would suit you fine, perhaps a Thunderbolt as that seems to be well know and respected here, and is a relatively inexpensive way to get a GPS disciplined oscillator. There is plenty of coverage of sats in NZ, I'm in Christchurch and daily track up to 12 on a Z3805A at any one time.
You could always buy your own used Rb oscillator, like an LPRO, as these are easily available on fleeBay from sellers like Bob Mokia (fluke.l) but you would need something to calibrate it with in the first place (possibly someone else's standard). These are used Rb units and have had their planned life already but the telecom's providers that have used them have generally bargained on a reasonable safety margin so you are likely to get a few more years out of them depending on the duty cycle you are using them. Steve On 25/07/2010, Don Collie jnr <[email protected]> wrote: > 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. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Steve Rooke - ZL3TUV & G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
