Re: LF: WSPR

[M0FMT <m0fmt@yahoo.co.uk>]

Hi Johan

 

Thank you for picking up on my mail. In fact it was sent to the LF reflector in error. However in the mean time I have sorted some of my problems out. I only have USB on this machine and use a converter to RS232 which I some times have a problem with. However I have communication with the PIC (Using Comm Pal) and it down loaded the original settings with 3333 3333 in the tone call out. I have down loaded my tone symbols from the WSPR DOS version and organised them on a spread sheet so as to have a permanent cross check. ComPal allows the import of files so I will modify your original file to suit my call etc and load it into the PIC.

 

Question:-  1/ The QRA locator only allows IO91 but not the usual last two letters can that be changed?

Question:-  2/ The symbols table at T can be entered with no gaps? Or do in need to include gaps at each 0,1,2,3, gap 1,2,n.?

 

Yes I read about the one way down load but felt I needed to know what had been entered to give confidence setting the frequency off sets as I am using an Xtal master oscillator not a DDS.

 

Anyway many thanks for the input I will now pess on with the project.

 

 73 es GL petefmt

I support www.NotSpotTelecom.Com your community Telco / ISP.

--- On Tue, 12/10/10, Johan H. Bodin <jh.bodin@telia.com> wrote:

From: Johan H. Bodin <jh.bodin@telia.com>
Subject: Re: LF: WSPR
To: rsgb_lf_group@blacksheep.org
Date: Tuesday, 12 October, 2010, 10:35

Hi Pete,

an older version of WSPR was able to generate the data. I don't know if it is
still available but there is an alternative. You can use the following program
from K1JT to generate the WSPR symbols:

http://physics.princeton.edu/pulsar/K1JT/WSPRcode.exe

Download the program, open a command prompt window, go to the directory
containing wsprcode.exe and type:

wsprcode "SM6LKM JO67 20" > symbols.txt

Press enter.

The output from wsprcode.exe will be saved in symbols.txt. Open this file and
look at the last table labeled "Channel symbols". This is the data you need -
the 162 WSPR symbols. This table should be identical to my example in the file
mjb002ug.pdf (I haven't checked). If it looks OK, just replace callsign, locator
and power with your own numbers.

Write a new text file similar to my "Example download file" on page 6 in
mjb002ug.pdf and replace my message (the table under command character T) with
your own 162 digit message from symbols.txt.

The ugly "HyperTerminal" in window$ can be used to download the file into the
PIC. Set it to 9600 baud, 8 data bits, no parity, 1 stop bit, no handshaking and
use "Send text file" to download the data. Please note that you must start the
download within 5 seconds after PIC reset / power-on (while the green LED is
still lit).

If you don't have a 5V <-> RS232 converter to put between the PC and the PIC,
you can try a one-way download by connecting the PC's TX line to the GPS input
on the PIC board (the transistor will do the necessary logic inversion).
However, you will get no confirmation of download success..

73
Johan SM6LKM

----

M0FMT wrote 2010-10-11 13:45:
> Hi Eddie
> 
> Not seen the call lately hope all is well with you. I need some help please.
> 
> I have built SM6LKM's VCXO directly keyed WSPR circuit MJB.
> 
> The LEDs indicate on switch on and flash when triggered. However I cannot
> communicate using the RS232 connection. What software do I need to run for this.
> I have read all the references but no indication. I initially thought the DOS
> version of WSPR would do it (it works fine as a decoder on the sound card) but
> it doesn't. So I am at a lost to input my data Like TX field :- wspr Tx 10.1386
> 10.140100 1 M0fmt io91 30. The PIC won't talk back to me with P,T,U,V,W,X.
> 
> What software do I need please?
>
> 73 es GL Pete M0FMT
>
> I support www.NotSpotTelecom.Com your community Telco / ISP.
>
>     
>
>