Hi Guys, I have a couple of Trimble T Lassen 2 boards I bought at a Hamfest - the guy told me they were left over from a contract he had and were brand new. He had a load and i bought a couple for use as a precision 1 PPS output for radio stuff. They were packed in static protection. When I apply power to both units I can hear the oscillator (12.504 MHz) on my comms RX. So I am assuming that they work.
I bought what claims to be a Trimble compatible active antenna on EBay. I hooked it up to one of the boards and applied power, and put the scope on the one pps pin. However after 20 mins (which I assume is much longer than the unit requires to get a lock) I see no 1pps trace on the screen. :-( So my working assumption is that the antenna is not working. The antenna position is fine as my elderly Garmin GPS2 which must be 12 years old sees 6 satellites there. Can anyone recommend a suitable antenna? I have a number of DIY designs I can try (Patch, Turnstile) but the Trimble docs say it needs an active antenna so I guess I'll have to spend money :-( While i am on, can anyone suggest a reasonably priced unit that has a 1pps output, NMEA and a built in antenna. Because I want to use this with an 8 bit embedded system I am probably not going to be able to hack one of the many cheap USB dongle GPS's. Lastly, has anyone found a GPS that will work with an Ipad. What the man in the Apple shop failed to tell me was the non 3g model lacked the built in GPS :-( Thanks in advice.... Steve -- Wisdom demands a new orientation of science and technology towards the organic, the gentle, the non-violent, the elegant and beautiful. E. F. Schumacher _______________________________________________ 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.
