Webchat showing Unknow Location, with no gps hooked to the pi4.

[pd2ch 2CH]

Hi all,

my first message here. Thx for the software Craig, nice to experiment with it on APRS.

During my experiments I noticed two things:

-It looks like the time was/is set correctly during initialize. Mine was set to London as I should have Amsterdam causing two hours of. (location was set fine at set up.)

Fixed it in raspi-config.

When I sent a beacon out first, and then ask ISS next n 2, I get no thumbs up, al dough I see in pktlog an auck coming in and a message with predicted passes of the ISS.

But the passes ar not for my location. It was more for a location In California instead of SW Netherlands. In the webchat I see all the time location unknown. What does this mean....?

I thought when no GPS is hooked up to digipi, the fixed location and system-time is used, or am i wrong?

73's de pd2ch Kees

[Craig]

Hi Kees,

All of your observations are normal, but probably deserve some
explanation inline,

On 9/26/25 2:14 PM, pd2ch 2CH wrote:
> Hi all,
> my first message here. Thx for the software Craig, nice to experiment
> with it on APRS.

I'm looking forward to bringing my HT to my next trip to Amsterdam/Hague.

>
> During my experiments I noticed two things:
> -It looks like the time was/is set correctly during initialize. Mine
> was set to London as I should have Amsterdam causing two hours of.
> (location was set fine at set up.)
> Fixed it in raspi-config.

Time is set by the internet, falls back to GPS.  Like most ham radio
stuff, the Time Zone is GMT
and you change it in raspi-config (after running sudo remount)

>
> When I sent a beacon out first, and then ask ISS next n 2, I get no
> thumbs up, al dough I see in pktlog an auck coming in and a message
> with predicted passes of the ISS.

Webchat is only listening on RF.  the "ig>tx" lines are from the
internet and are ignored by WebChat.
The upside is that you know your packet got out on RF.

> But the passes ar not for my location. It was more for a location In
> California instead of SW Netherlands. In the webchat I see all the
> time location unknown. What does this mean....?

"location unknown" is the location of the station you're talking to on
webchat.  when you
click update it sends a packet to REPEAT, asking for the remote
station's distance and bearing.

>
> I thought when no GPS is hooked up to digipi, the fixed location and
> system-time is used, or am i wrong?

Raspberry Pi has no system time, no rtc.  once your'e on the internet
you get time.  if not internet,
it gets time from GPS at boot.

best,
-craig
KM6LYW