Most people don't know that units like the Efratom FRK "FM" the laser to keep it on frequency in a simple control loop and this can cause issues depending on your use case. The other thing that most don't realize is their is a difference between stability and accuracy. You'd ideally like both to be great for some things but what most people
>From a convenience, power, etc I certainly prefer my GPSDO's. Ettus makes a plug in unit for their SDR's and Flex 6700's will have provision for inclusion of the GPSDO. Now if anyone has a spare working Hy Maser....... I would like to recommend a paper/design for DIY-ish GPSDO. James Miller, G3RUH, polymath extraordinaire did this work: http://www.jrmiller.demon.co.uk/projects/ministd/manual.pdf Bob N4HY On Mon, Feb 18, 2013 at 10:39 PM, Dave <rocke...@gmail.com> wrote: > Now a RbO that is GPSDO is the cat's meow. > > Like my Trak 9100. Makes a nice time server on the network as well. > > Also have a couple of older Efratom units. > > Dave > wo2x > > > > On 2/18/2013 10:35 PM, Richard Solomon wrote: > >> I also have both (two RbO's and 4 GPSDO's). I'll take the GPSDO any day. >> >> 73, Dick, W1KSZ >> > > > ______________________________**_________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/**mailman/listinfo/flexradio_**flex-radio.biz<http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz> > Archives: > http://www.mail-archive.com/**flexradio%40flex-radio.biz/<http://www.mail-archive.com/flexradio%40flex-radio.biz/> > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > -- Bob McGwier, N4HY Flexradio Systems, Inc. Consultant _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/