Re: [time-nuts] GNS-500A Rubidium

2018-05-25 Thread Clint Jay
It has, in one of the pictures, a damaged label that says FRK so yes, I would think that too. It does look rather sad but could be a fun project perhaps. On Fri, 25 May 2018 3:27 pm Bob kb8tq, wrote: > HI > > Unless I’m missing something, that’s an *old* Efratom. I would not

[time-nuts] GNS-500A Rubidium

2018-05-25 Thread Clint Jay
Just spotted on eBay, a rather sorry looking GNS-500A Rubidium standard, it's not expensive and is up for best offer, May or may not be of use to someone? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Terminators on empty outputs/connectors

2018-05-25 Thread Dana Whitlow
I recommend putting terminators on unused ports, on general principles. But I don't think it would ordinarily be necessary to use big-bucks terms, unless the distro amp is really cheaply made. If you have access to a VNA, it would be interesting to measure the complex transmission coefficient

[time-nuts] Terminators on empty outputs/connectors

2018-05-25 Thread Clay Autery
Putting in a hardware order... Question:  Is it recommended to put terminators on all unused GPS Distro amp ports?  Output ports on GPSDO and NTP servers (10MHz and PPS). Thanks! -- __ Clay Autery MONTAC Enterprises (318) 518-1389

Re: [time-nuts] Terminators on empty outputs/connectors

2018-05-25 Thread Graham / KE9H
As usual, the answer is "it depends." If the output is a single isolated output, then terminating load not required, but no harm providing. If the output is a multiple output, from a single driver, through a resistive or transformer splitter, then the level stability on all ports and the port to

Re: [time-nuts] GNS-500A Rubidium

2018-05-25 Thread Bob kb8tq
HI Unless I’m missing something, that’s an *old* Efratom. I would not count on it working without some significant effort. The price is right though. Bob > On May 25, 2018, at 10:21 AM, Clint Jay wrote: > > Just spotted on eBay, a rather sorry looking GNS-500A Rubidium

[time-nuts] 5950 Crystal impedance meter manual

2018-05-25 Thread tim...@timeok.it
Hi all, Thank you all for the precious answers and the links you sent me. I'm studying them very carefully. I still continue to look for the manual of the 5950 because I like to keep the manuals of all the measuring instruments I have in my laboratory. Thanks again Luciano

Re: [time-nuts] 5950 Crystal impedance meter manual

2018-05-25 Thread Bernd Neubig
Hi Regarding the manuals, I must look in my paper archive. I remember to have two manuals of two types of those "old test sets". I have even one of the test sets in my "museum". It will take a while to dig, as I am going to travel for 10 days. I will come back after that. Regards Bernd

Re: [time-nuts] TrueTime XL-AK Issues

2018-05-25 Thread paul swed
Dick Thats great progress. Certainly its worth digging a bit deeper see whats up on the antenna. The way they sense the antenna is usually a single transistor sensing the current and pulling a line high or low. The micro senses that and reacts. It usually really easy to figure the scheme out.

[time-nuts] FS -hp- 5370 "Time Nuts Processor" board + +

2018-05-25 Thread Dan Rae
Bought some time around 2013 and not used if this is any use to anyone please contact me direct.   No reasonable offer refused.  I also have a 5370B to go with it but that will have to be picked up in Santa Monica CA.  $100 with an A parts unit and a few spare boards rescued from the gold

Re: [time-nuts] TrueTime XL-AK Issues

2018-05-25 Thread Richard Solomon
The second unit locked up and showed 4 satellites at the time I looked. Next step is to replace the battery and see if it saves the setup. In particular, I will be interested in seeing if it stores the date OK. I found in the first unit what looked like a bad solder joint, but after fixing

Re: [time-nuts] FS -hp- 5370 "Time Nuts Processor" board + +

2018-05-25 Thread Dan Rae
Board is spoken for, thanks, Dan ___ 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.