Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Artek Manuals
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: Wednesday, February 24, 2016 10:37 PM To: Discussion of precise time and frequency measurement Subject: [Bulk] [time-nuts] Z3801A holdover I just took a look at my Z3801A that has been in holdover for some time. I ha

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Joseph Gray
roblem. >> >> Does anyone know anything about how to repair these receivers? >> >> Thanks. >> >> Joe >> WB4BPP >> >> >> >> -Original Message- >> From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of J

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Artek Manuals
anks. Joe WB4BPP -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: Wednesday, February 24, 2016 10:37 PM To: Discussion of precise time and frequency measurement Subject: [Bulk] [time-nuts] Z3801A holdover I just took a look at my Z3801

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Artek Manuals
Joe It would have been helpful to see the graph BEFORE you power-cycled if you still have that data stream I would not jump to any conclusions at this point until the power supply voltages have been checked . Downloading the schematics from KO4BB.com of the power supply and oven control

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread J. L. Trantham
measurement Subject: [Bulk] [time-nuts] Z3801A holdover I just took a look at my Z3801A that has been in holdover for some time. I have been too busy to do anything about it until now. Before looking at the receiver stats just now, my first guess was that the Oncore GPS board went bad. However, I

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Joseph Gray
Dave, Thanks for the tips. I also got a message off list telling me about the EFC issue and that I missed this discussion recently on the list. Last night, I power cycled the Z3801A. It has been running all night. Attached is the graph you requested. If I read this correctly, yes, it looks like

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Bob Camp
Hi The TRAIM error will happen with a small number of sats and a location estimate that is less than perfect. I would not go to crazy about that part. First question — why so few sats? You really need to have full screen of locked sats. That can be a feed line / antenna issue. The old Oncore

Re: [time-nuts] Z3801A holdover

2016-02-25 Thread Artek Manuals
On 2/24/2016 11:37 PM, Joseph Gray wrote: I just took a look at my Z3801A that has been in holdover for some time. I have been too busy to do anything about it until now. Before looking at the receiver stats just now, my first guess was that the Oncore GPS board went bad. However, I see that it

[time-nuts] Z3801A holdover

2016-02-24 Thread Joseph Gray
I just took a look at my Z3801A that has been in holdover for some time. I have been too busy to do anything about it until now. Before looking at the receiver stats just now, my first guess was that the Oncore GPS board went bad. However, I see that it is currently tracking 4 sats. I also see