I would say the main disadvantage is that you need a suitably positioned GPS antenna. I understand that the GPS satellites use Caesium resonators so in theory could be more accurate than Rubidium.
Another alternative is an off-air frequency standard controlled by the Radio 4 transmission on 198kHz at Droitwich, Burghead and Westerglen which is accurate to 2 parts in 10^11. One such device by Quartzlock is currently on eBay (item 180648121165). I can confirm that in field test trials the Quartzlock Model 2A locks the K3 okay. 73 de David G4DMP In a recent message, "Julian, G4ILO" <[email protected]> writes >What are the advantages / disadvantages of this type of frequency standard >over the Efratom LPRO-101 which is a rubidium standard? -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
