SSDR only makes use of the freq. reference, but it will display all the other parameters once per second. Actually, the Maestro seems to synchronize itself to the GPSDO time.
It would add value to my station (and computer network) if the GPSDO could function as an NTPD network time server on the Ethernet. (For NTPD, millisecond accuracy may be enough.) The software to do this is standard, but the most accurate time information is buried in the radio away from our reach as non-SSDR-developers.
My questions are
- has anyone found ways to get accurate time (microseconds, ideally) through the API? and
- does anyone have an idea how to create an NTPD module that would work beside SSDR? Presumably it should come from a "time-nut" rather than from Flex developers.
I have looked at the Waveform interface a little to see if it could possibly work for NTPD. It might be a stretch, but maybe someone can speak to that. I don't see any recent Waveform development. Maybe that's telling us something?
Thanks for your thoughts!
73 Martin AA6E
An observation I have noticed: If I set my PC clock using the net, it is nearly spot on accurate when compared with WWV using a non-SDR. When I compare the PC time with GPSDO time, the GPSDO time is about .3 to .4 seconds behind the actual time. When I compare the GPSDO time with WWV while using the Flex 6700 all is well. So I guess the time it takes to receive the signal and convert it is the lag I am seeing so I have been using the net to set the clock in my PC.
The thing that sold me on the GPSDO was the "proposed" ability to use the time signal to synch packets for diversity reception between a couple of different radios..so as to be able to take advantage of diverse antenna sites.
I suppose its on the to do list... but nothing heard for several years now
What I do want to see is time stamping of the. VITA-49 data packets so we can do diversity with multiple receivers.
I use Meinberg at the moment for my PC, but it sure seems like a waste when the info is just inches away! I may look into the Time Machines TM1000A as mentioned earlier in this thread. That looks as if it would have been a much better way than to have spent the bucks for the GPSDO.
Flex, while you don't seem to want to do this, I think you are missing a marketing opportunity to sell more GPSDO's (as was also mentioned earlier in this thread)!
- 3002 Conversations
- 621 Followers
- 3532 Conversations
- 903 Followers
- 454 Conversations
- 159 Followers
- 946 Conversations
- 142 Followers
- 861 Conversations
- 119 Followers
- 1023 Conversations
- 148 Followers
- 1019 Conversations
- 139 Followers