Re: [time-nuts] Eclipse

Bill Interesting on the water fall. To reverse the offsets. Take the difference of the frequency from the supposed center frequency. Then add it to to the supposed center frequency. Flip this process if I have it backwards. Regards Paul WB8TSL On Fri, Aug 25, 2017 at 8:02 PM,

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

Seems like I have more than one problem. Did a voltage check on the Antenna Input BNC and got zero !! Thanks for the reply, 73, Dick, W1KSZ Sent from Outlook From: time-nuts on behalf of Bob kb8tq

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

Dick, I have had a couple of the XL-AK receivers here for several years. They both do not have the down converter option and do put out 5 volts to the antenna jack. It is simple to measure with a volt meter into the antenna jack. While they kind of worked with a hockey-puck antenna, they

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

Hi The older GPS units had a downconverter in the antenna and passed an IF frequency back to the receiver. There also was an era when the standard antenna was fed 12V (rather than 5V) and had 50 db of gain (rather than 20 to 30 db). Most modern hockey pucks will be unhappy with 12V. Bob

[time-nuts] TrueTime XL-AK Questions

I was given two of these about 20 some years ago. At that time they both worked fine, except the "keep-alive" batteries were quite low. But they did lock up to the GPS Satellites. I pulled one out today to try out (slow day !!) but I had this nagging feeling that they required a different

[time-nuts] SA22.c and Lady Heather

I got in a SA22.c rubidium from RDR electronics and one of those interface boards that appeared briefly on Ebay last week (he had 6 for $7 each and they went fast... there is another seller that has one for $80). The X72 code that I added to Lady Heather works with the SA22. I'm still