Empathy List Archives

K

k1jos@att.net

Tue, Nov 30, 2021 4:06 AM

I have an Oncore UT+ for a project and found that it works fine after
updating the almanac and getting a 3D fix but it never stores my location
coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat,
Lon, Alt for about an hour or so until it finds satellites. With Lady
Heather I tried entering my coordinates and this leads to faster tracking.
Is this normal Oncore UT+ behavior? Any advice other than a battery backup.

Jerry NY2KW

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I have an Oncore UT+ for a project and found that it works fine after updating the almanac and getting a 3D fix but it never stores my location coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat, Lon, Alt for about an hour or so until it finds satellites. With Lady Heather I tried entering my coordinates and this leads to faster tracking. Is this normal Oncore UT+ behavior? Any advice other than a battery backup. Jerry NY2KW -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

PK

Poul-Henning Kamp

Tue, Nov 30, 2021 7:43 AM

k1jos@att.net writes:

I have an Oncore UT+ for a project and found that it works fine after
updating the almanac and getting a 3D fix but it never stores my location
coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat,
Lon, Alt for about an hour or so until it finds satellites. With Lady
Heather I tried entering my coordinates and this leads to faster tracking.
Is this normal Oncore UT+ behavior? Any advice other than a battery backup.

As far as I know, the EEPROM (Flash?) is only used for code. The almanac
and other changing info is in battery-backed NOVRAM.

--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

-------- k1jos@att.net writes: > I have an Oncore UT+ for a project and found that it works fine after > updating the almanac and getting a 3D fix but it never stores my location > coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat, > Lon, Alt for about an hour or so until it finds satellites. With Lady > Heather I tried entering my coordinates and this leads to faster tracking. > Is this normal Oncore UT+ behavior? Any advice other than a battery backup. As far as I know, the EEPROM (Flash?) is only used for code. The almanac and other changing info is in battery-backed NOVRAM. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.

W

wbeam@gci.net

Tue, Nov 30, 2021 8:16 AM

----- Original Message -----
From: Poul-Henning Kamp phk@phk.freebsd.dk
To: Discussion of precise time and frequency measurement time-nuts@lists.febo.com, k1jos@att.net
Sent: Tue, 30 Nov 2021 02:43:03 -0500 (EST)
Subject: [time-nuts] Re: Oncore UT+ EEPROM -

k1jos@att.net writes:

I have an Oncore UT+ for a project and found that it works fine after
updating the almanac and getting a 3D fix but it never stores my location
coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat,
Lon, Alt for about an hour or so until it finds satellites. With Lady
Heather I tried entering my coordinates and this leads to faster tracking.
Is this normal Oncore UT+ behavior? Any advice other than a battery backup.

As far as I know, the EEPROM (Flash?) is only used for code. The almanac
and other changing info is in battery-backed NOVRAM.

--
And therefor your UT+ needs backup battery installed. Some do and some don't.
It's an easy DIY.
Bill Beam
NL7F

----- Original Message ----- From: Poul-Henning Kamp <phk@phk.freebsd.dk> To: Discussion of precise time and frequency measurement <time-nuts@lists.febo.com>, k1jos@att.net Sent: Tue, 30 Nov 2021 02:43:03 -0500 (EST) Subject: [time-nuts] Re: Oncore UT+ EEPROM - -------- k1jos@att.net writes: > I have an Oncore UT+ for a project and found that it works fine after > updating the almanac and getting a 3D fix but it never stores my location > coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat, > Lon, Alt for about an hour or so until it finds satellites. With Lady > Heather I tried entering my coordinates and this leads to faster tracking. > Is this normal Oncore UT+ behavior? Any advice other than a battery backup. As far as I know, the EEPROM (Flash?) is only used for code. The almanac and other changing info is in battery-backed NOVRAM. -- And therefor your UT+ needs backup battery installed. Some do and some don't. It's an easy DIY. Bill Beam NL7F

A

Angus

Tue, Nov 30, 2021 8:44 AM

Off-board battery back up on these old receivers is easy as the back
up battery supply pin takes very little current. I usually used a
non-rechargeable lithium coin cell.
Keeping it separate from the GPS allows it to be easily disconnected
to clear the memory.

On Mon, 29 Nov 2021 23:06:31 -0500, you wrote:

I have an Oncore UT+ for a project and found that it works fine after
updating the almanac and getting a 3D fix but it never stores my location
coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat,
Lon, Alt for about an hour or so until it finds satellites. With Lady
Heather I tried entering my coordinates and this leads to faster tracking.
Is this normal Oncore UT+ behavior? Any advice other than a battery backup.

Jerry NY2KW

Off-board battery back up on these old receivers is easy as the back up battery supply pin takes very little current. I usually used a non-rechargeable lithium coin cell. Keeping it separate from the GPS allows it to be easily disconnected to clear the memory. On Mon, 29 Nov 2021 23:06:31 -0500, you wrote: >I have an Oncore UT+ for a project and found that it works fine after >updating the almanac and getting a 3D fix but it never stores my location >coordinates in its EEPROM. Each time I power up it shows all zeroes in Lat, >Lon, Alt for about an hour or so until it finds satellites. With Lady >Heather I tried entering my coordinates and this leads to faster tracking. >Is this normal Oncore UT+ behavior? Any advice other than a battery backup. > > >Jerry NY2KW

PS

paul swed

Tue, Nov 30, 2021 2:36 PM

The answers are the same that I have add a backup battery off board.
However I do something just a bit different. I use 2 X AAA batteries in a
holder external to the box. For easy inspection, voltage checks and super
easy battery exchange.
Save deracking and such. (Lazy)
Good luck
Paul
WB8TSL

On Tue, Nov 30, 2021 at 5:50 AM Angus via time-nuts <
time-nuts@lists.febo.com> wrote:

Off-board battery back up on these old receivers is easy as the back
up battery supply pin takes very little current. I usually used a
non-rechargeable lithium coin cell.
Keeping it separate from the GPS allows it to be easily disconnected
to clear the memory.

On Mon, 29 Nov 2021 23:06:31 -0500, you wrote:

I have an Oncore UT+ for a project and found that it works fine after
updating the almanac and getting a 3D fix but it never stores my location
coordinates in its EEPROM. Each time I power up it shows all zeroes in

Lat,

Lon, Alt for about an hour or so until it finds satellites. With Lady
Heather I tried entering my coordinates and this leads to faster tracking.
Is this normal Oncore UT+ behavior? Any advice other than a battery

backup.

Jerry NY2KW

time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send
an email to time-nuts-leave@lists.febo.com
To unsubscribe, go to and follow the instructions there.

The answers are the same that I have add a backup battery off board. However I do something just a bit different. I use 2 X AAA batteries in a holder external to the box. For easy inspection, voltage checks and super easy battery exchange. Save deracking and such. (Lazy) Good luck Paul WB8TSL On Tue, Nov 30, 2021 at 5:50 AM Angus via time-nuts < time-nuts@lists.febo.com> wrote: > > Off-board battery back up on these old receivers is easy as the back > up battery supply pin takes very little current. I usually used a > non-rechargeable lithium coin cell. > Keeping it separate from the GPS allows it to be easily disconnected > to clear the memory. > > > On Mon, 29 Nov 2021 23:06:31 -0500, you wrote: > > >I have an Oncore UT+ for a project and found that it works fine after > >updating the almanac and getting a 3D fix but it never stores my location > >coordinates in its EEPROM. Each time I power up it shows all zeroes in > Lat, > >Lon, Alt for about an hour or so until it finds satellites. With Lady > >Heather I tried entering my coordinates and this leads to faster tracking. > >Is this normal Oncore UT+ behavior? Any advice other than a battery > backup. > > > > > >Jerry NY2KW > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-leave@lists.febo.com > To unsubscribe, go to and follow the instructions there. >