[amsat-bb] Re: LVB Tracker 1 Nova fix

[Howard Long]

Thanks Stefan,

Just to add one further thing to avoid any confusion, although HDR1 and HDR3
are referred to, there are in fact only two headers! HDR2 doesn't exist, it
was removed early on in a board revision.

73, Howard G6LVB

-----Original Message-----
From: Stefan Wagener [mailto:stefan_wagener at hotmail.com] 
Sent: 27 May 2008 00:48
To: 'Howard Long'; amsat-bb at amsat.org
Subject: RE: [amsat-bb] Re: LVB Tracker 1 Nova fix

Thanks Howard,

It worked fine. 

Did the programming via serial port.

Used the PicProg.exe file from your website and placed it in C: directory
together with the "LVBTrack.hex" file.

Used the "Command Prompt" feature in WinXP and the following command:

C:\>PicProg LVBTrack.hex \\.\COM7 

This is a slight different command line as stated in your documentation
since the new hex file has a different name. 

Also, for those of you that would like to do that, please use your own com
port number (mine was 7)

The program will ask you to set HDR1 and HDR3. These are the 3-way and 2-way
headers with the little contact bridges. The 3-way header is actually HDR 1
and is next to the J4 buttons. Both headers have a program (PGM) position.

I left the LVB tracker connected to the YAESU G5500 control box as a power
source. 

Thanks,

Stefan VE4NSA


-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Howard Long
Sent: May-26-08 1:05 PM
To: 'Howard Long'; amsat-bb at amsat.org
Subject: [amsat-bb] Re: LVB Tracker 1 Nova fix

Folks

Sorry, the URLs I gave were a bit wrong, they should be:

http://www.g6lvb.com/Articles/LVBTracker/LVBTrack.hex
http://www.g6lvb.com/Articles/LVBTracker/LVBTrack.c 

Cheers, Howard

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Howard Long
Sent: 26 May 2008 11:39
To: amsat-bb at amsat.org
Subject: [amsat-bb] LVB Tracker 1 Nova fix

Folks

A few weeks ago my attention was drawn to a compatibility problem with Nova
and the LVB Tracker 1. I believe that I have found the fault, but it is not
clear why it has taken so long for this problem to occur, especially as Nova
has been my tracking program of choce for many years! It may only affect
more recent versione of Nova.

I have adjusted the LVB Tecker's Baud Rate Generator slightly to be much
closer to 9600bps. I must have made an error in my calculations all those
years ago, so it was only operating at 9259bps. I have adjusted the BRG by
one to make 9616bps and things seem to be much better now. Technically, we
were only 3.5% out anyway which normally would be OK (ISTR that 5% timing
error is the limit).

Anyway, new 0.9 binaries and source here:

http://www.g6lvb.com/Articles/LVBTrack.hex
http://www.g6lvb.com/Articles/LVBTrack.c

73, Howard G6LVB

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