[time-nuts] GPSDO Comparison - Never Happened?
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I remember a while back a discussion about people contributing their various GPSDOs to someone who could do some proper (and hopefully unbiased) tests and comparisons. Did I totally miss out, or did the idea just die? The reason I mention this is I recently had to move my office for a few months and I don't have any GPS access, hence all my GPSDOs' and accessories are sitting in storage until I move back. I think it would be really interesting to see how some of the various products compare (that's assuming someone like Tom doesn't already own every last time piece known to man - yet). :) Jason ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] GPSDO Comparison - Never Happened?
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I remember a while back a discussion about people contributing their various GPSDOs to someone who could do some proper (and hopefully unbiased) tests and comparisons. Did I totally miss out, or did the idea just die? Quite a few people responded and have sent me GPSDO already. What I haven't done is finished testing all those that I planned and put the results into a summary web page. The reason I mention this is I recently had to move my office for a few months and I don't have any GPS access, hence all my GPSDOs' and accessories are sitting in storage until I move back. Ah ha, they might as well join the lot here then. Send me email offline about loan logistics. I think it would be really interesting to see how some of the various products compare (that's assuming someone like Tom doesn't already own every last time piece known to man - yet). :) Jason I'm currently going through the large group-buy batch of Trimble Thunderbolts but I have timespace for a few more now that summer is over. /tvb ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Jupiter GPS engine source
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY A while back someone had some Jupiter GPS engines on EBAY. Did they all go? Any one know of a reasonably priced (aka cheap) one? ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Jupiter GPS engine source
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY A while back someone had some Jupiter GPS engines on EBAY. Did they all go? Any one know of a reasonably priced (aka cheap) one? I sold probably 10 or so here and there (both 5V 3.3V Jupiter 8's), I don't know if I have any left or not. I'll dig through my boxes at the office either Monday or Tuesday and let you know. I *think* I sold all my spares though. I can also dig through my eBay emails to see if I can find the person who I bought the lot from before and give you what info I have, maybe they still have some. If you watch ebay for Zodiac GPS there are development kits that pop up from time to time. It's basically the GPS board, interface, case, magnetic mount antenna, cables, etc. I have one and I added a BNC connection on the back for the 10 kHz output. You can also solder a couple wires and add PPS to the serial port. Jason ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] GPSDO Question
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY 73 de K1JOS (Jerry) CCA #11906 CRA #1777 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Saturday, September 01, 2007 12:00 PM To: time-nuts@febo.com Subject: time-nuts Digest, Vol 38, Issue 1 ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Send time-nuts mailing list submissions to time-nuts@febo.com To subscribe or unsubscribe via the World Wide Web, visit https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than Re: Contents of time-nuts digest... Hi Group, I just recently completed a GPSDO inside a HP5328A. I was going to use the Schera board but opted for the VE2ZAZ. At first I tried to cannibalize the HP5328A's internal power supply for either the +/-15VDC or +5/-5.2VDC supply but I discovered the hard way that they would not supply enough current (burnt out CR1 and Q7) or the supplies would not be well regulated. I opted therefore to include inside the case a +/-12VDC swtiching supply powered externally by a 24VDC wall wart. From the +/-12VDC dual supply I cleaned up the rails with an L7805 and L7905. I was able to bring out to the the rear panel the 10Mhz and 5Mhz references plus the SMA GPS antenna connector. On the side panel I put in a momentary pushbutton switch to reset the GPS if needed plus a DB9 RS232 for serial communicatiosn with either the GPS using software like VisualGPS) or to monitor the VE2ZAZ board status. A simple DPDT switch next to the DB9 connector controls the serial selection. I have complete pictures if anyone is interested and it works very nicely. Jerry K1JOS ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
