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[aprssig] Need Loran-C sample data

scott at opentrac.org scott at opentrac.org
Sat Oct 30 00:34:57 UTC 2004


I use SailSoft's GPSSIMUL for most of my bench testing.  It'll do $GPGLL,
which I think is the same as $LCGLL.  Not sure if all Loran-C receivers
output that, though.

Scott
N1VG

-----Original Message-----
From: Joe Della Barba [mailto:joe at dellabarba.com]
Sent: Friday, October 29, 2004 4:40 PM
To: Scott Miller; TAPR APRS Mailing List
Subject: Re: [aprssig] Need Loran-C sample data


Isn't there a GPS simulator program that puts out test NMEA data. Loran data
is almost identical, maybe it could be tweaked to do that too.
This may help you out some:
http://nmeatool.nmea2000.de/eng/e_home.html
http://www.engalt.com/dt-1nmea.htm
 or try this:

For this, I wrote a short simulator  program
in BASIC that does the job, and allows me to program in the  text
I want to send. The connection is different, also. This time  you
will  have  to connect the NMEA signal line to  RS-232  "transmit
data"  (#3 on 9 pin or #2 on 25 pin connectors), and NMEA  ground
to  RS-232 signal ground (as before). In addition,  you  probably
will have to bring the RS-232 "data set ready" (DSR) terminal  to
a  low  voltage. You can do this by inserting  a  jumper  between
"data  terminal  ready" (DTR, normally #4 on 9 pin or #20  on  25
pin) and DSR (#6 on 9 or 25 pin setups).
     Here is the text of my NMEA 0183 simulator program:

5   REM LORAN SIMULATOR PROGRAM - Wayne Simpson, 1991
10  OPEN "com2:4800,n,8,1,RS" FOR OUTPUT AS#1
15  REM setup RS-232 to parameters and disable request to send
100 A$="$LCGLL,4004.22,N,07409.78,W"
110 B$="$LCBWC,,4001.80,N,07403.66,W,100,T,200,M,005.2,N,011"
120 C$="$LCAPA,V,A,0.25,R,N,V,V,300,T,011"
130 D$="$LCVTG,,,268,M,02.1,N,,"
140 E$=""
200 PRINT A$    'print GLL statement to screen
205 PRINT#1,A$  'send GLL over interface
210 PRINT B$    'BWC to screen
215 PRINT#1,B$  'BWC to interface
220 PRINT C$    'APA to screen
225 PRINT#1,C$  'APA to interface
230 PRINT D$    'VTG to scren
235 PRINT#1,D$  'VTG to interface
240 PRINT E$    'empty line to screen
245 PRINT#1,E$  'empty line to interface
300 FOR I=1 TO 12000
310 NEXT
320 GOTO 200
330 REM line 300 provides the 2 second rep rate
340 REM line 320 repeats the transmission over and over
350 REM use ctrl-brk keystroke to terminate transmission

     Load  this program into your computer, substitute  into  the
A$-E$  variables whatever it is you want to say, and run it.  You
are  now speaking NMEA, and can do a fair job of  troubleshooting
interface problems this way.

Joe
73 de N3HGB
----- Original Message -----
From: "Scott Miller" <scott at opentrac.org>
To: "Joe Della Barba" <joe at dellabarba.com>; "TAPR APRS Mailing List"
<aprssig at lists.tapr.org>
Sent: Friday, October 29, 2004 7:19 PM
Subject: Re: [aprssig] Need Loran-C sample data


> Yeah, but it's $20 for shipping.
>
> Really, I don't want a Loran-C... and I'll probably never have more than a
> few users that would ever use the feature anyway... I just want some test
> data.
>
> Scott, N1VG
> http://n1vg.net/opentracker
>
> ----- Original Message -----
> From: "Joe Della Barba" <joe at dellabarba.com>
> To: "TAPR APRS Mailing List" <aprssig at lists.tapr.org>
> Sent: Friday, October 29, 2004 4:09 PM
> Subject: Re: [aprssig] Need Loran-C sample data
>
>
> > Try
> >
>
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=249711211
2&category=26436
> >
> >
> > ----- Original Message -----
> > From: "Andrew Rich" <vk4tec at tech-software.net>
> > To: "TAPR APRS Mailing List" <aprssig at lists.tapr.org>
> > Sent: Friday, October 29, 2004 5:30 PM
> > Subject: RE: [aprssig] Need Loran-C sample data
> >
> >
> > >
> > > http://www.dsts.com/lcs-212.htm
> > >
> > > cool
> > >
> > >
> > > -----Original Message----http://www.dsts.com/lcs-212.htm-
> > > From: aprssig-bounces at lists.tapr.org
> > > [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Scott Miller
> > > Sent: Saturday, 30 October 2004 1:45 AM
> > > To: TAPR APRS Special Interest Group
> > > Subject: [aprssig] Need Loran-C sample data
> > >
> > >
> > > Does anyone have a sample NMEA capture from a Loran-C receiver they
> could
> > > send me off-list?  I don't have access to one anymore, and I'm working
> on
> > > improving the NMEA support in the OpenTracker.
> > >
> > > Thanks,
> > >
> > > Scott, N1VG
> > > http://n1vg.net/opentracker
> > >
> > >
> > > _______________________________________________
> > > aprssig mailing list
> > > aprssig at lists.tapr.org
> > > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> > >
> > >
> > >
> > > _______________________________________________
> > > aprssig mailing list
> > > aprssig at lists.tapr.org
> > > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
> >
> > _______________________________________________
> > aprssig mailing list
> > aprssig at lists.tapr.org
> > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
>






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