Hello Paul, Yes.... I forgot to mention that I have a ferrite resonant antenna with very good SNR. The receiver also displays code in the left digit of the display like the manual says but with about 20% errors which is the digit 4 I don't think the antenna is the problem, I have built nearly 100 of these over the years and they are in use on many different receivers.
I don't a lot about these I&Q detectors and I believe the problem may be in one of those. Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of paul swed Sent: Saturday, May 28, 2011 4:17 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Spectracom 8170 Receiver Trouble Requesting help please Paul I do not own one of these but perhaps soon. Many of the vlf receivers required a pre amplified antenna. Typically a loop. Not saying that yours does. But if it were missing that could make things difficult. Paul WB8TSL near Boston On Sat, May 28, 2011 at 2:38 PM, Paul A. Cianciolo <[email protected]> wrote: > Hello Folks, > > > > This is my first post to the list and I appreciate being able to do so. > > > > I recently acquired a Spectracom 8170 WWVB receiver. > > The manual is available at the Spec. site and I have downloaded it, > and been reading through it. > > > > One of the problems is the lock light comes on almost immediately when > the RX is powered up with no antenna connected. > > Also there is a purple wire on the A2 board, pin 6 of J5 that has been > fitted so it can be removed and reconnected from J5 easily. > > This appears to be the synchronous AGC line back to the preamp board. > > > > In addition R30 on the A2 board has been adjusted. I think this is > carrier null. > > Power supplies are all within .1 volts of 12vdc -12vdc and 5 VDC. > > > > Looking for some direction from owners of this RX. > > > > Thank you > > > > Paul A. Cianciolo > > W1VLF > > http://www.rescueelectronics.com/ > > Our business computer network is powered exclusively by solar and > wind power. > > Converting Photons to Electrons for over 20 years > > > > _______________________________________________ > 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. > _______________________________________________ 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. _______________________________________________ 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.
