Re: Error in AP driver

Ajai Sehgal

I have looked at the code and can't see anything that would cause
this. The code is common to all the drivers that I write and so far
no issues have been reported. Here is the code. If someone can spot
the error I am will certainly fix it:

'Get the longitude from the AP and convert it to degress
SiteLongitude = -m_Util.DMSToDegrees(CommandString("Gg"))

' Convert from AP 0-359 westward to ASCOM format +/- 180 +E
If SiteLongitude < -180# Then SiteLongitude = SiteLongitude + 360#

This is the entire AP documentation on the topic (leaves quite a bit
to be desired - as you can see is is VERY open to interpretation:

Command: :Gg#
Response: +DDD*MM# or +DDD*MM:SS# if long format
Gets the current longitude.

It would be helpful if you could send me a serial trace of what the
AP is reporting back when you query the longitude when east (I can't
get to my AP right now because it is in a dome and it is pouring rain
here - can't open the dome to get in - remote computer shut itself
down - sigh).

Please ensure that you have the updated helper2.dll installed from
the ASCOM site. This is required as the old version had a bug in it.


--- In ap-gto@..., "Chuck Faranda" <mail_lists2@...>

FYI: Ajai is investigating the issue and will report ASAP.

Chuck Faranda

----- Original Message -----
I am running the latest driver for AP GTO mounts (4.1.25)
under ASCOM 4. My mount is a Mach1.
The reported site information is incorrect: after a Get
Lat/Long is done, I get a correct value for Latitude, but
Longitude is wrong:
it reports
E 4 10.00
instead of
E 5 50.00
I checked the AP keypad: it's OK there.
So I suspect a wrong conversion... possibly for all of us
sitting E of Greenwich...

Join to automatically receive all group messages.