Looking for some help here ... I have been using Lady Heather (LH, v6.xx) for some time now, and I have it working fine with my HP Z3805As ... I recently acquired a Trimble Lassen SK II module (link <http://tom-itx.no-ip.biz:81/~webpage/SBC/GPS/apps/lassensk2_info.pdf>and link <https://docs.ampnuts.ru/eevblog.docs/Trimble/Manuals/Lassen_SK_II.pdf>) and I have it up and running in a system with proper DB9(DE9) serial connectors :-) The final manual for these modules dates from 1999 (same as the Lassen LP module). The Lassen SK II does bidirectional TSIP @ 9600,0,8,1 on its Port 1 and unidirectional (i.e., output only) NMEA @ 4800,N,8,1 on its Port 2. At my location, the Lassen SK II locks with at least 4 GPS satellites in view. It's drawing around 110mA @5V with an active antenna attached, which is pretty close to its specs. I can see the (default) $GPGGA and $GPVTG NMEA strings on Port 2 -- works fine. I can see some sort of binary on Port 1 -- look OK. But I cannot get past the "empty" startup screen in Lady Heather on either. I am connecting to it via a USB-to-serial adapter that is on my COM11. - My command line for LH on Lassen's Port 1 for TSIP: "C:\Program Files (x86)\Heather\HEATHER (2).EXE" /11 /rx /br=9600:8:O:1 /tz=-8pst/pdt - If I set it for auto-detect (/rx) when connected to Port 1, it discovers a TSIP device (though not every time), and then ... LH does nothing. - My command line for LH on Lassen's Port 1 for TSIP: "C:\Program Files (x86)\Heather\HEATHER (2).EXE" /11 /rxt /br=9600:8:O:1 /tz=-8pst/pdt - If I set it for a TSIP receiver (/rxt) when connected to Port 1 , LH... does nothing. - My command line for LH on Lassen's Port 2 for NMEA: "C:\Program Files (x86)\Heather\HEATHER (2).EXE" /11 /rxn /br=4800:8:N:1 /tz=-8pst/pdt - If I set it for NMEA (/rxn) when connected to Port 2, LH also does ... nothing. Any ideas on why LH isn't playing nice with this receiver? --Andrew -------------------------------- Andrew E. Kalman, Ph.D.

- My command line for LH on Lassen's Port 1 for TSIP: "C:\Program
Files (x86)\Heather\HEATHER (2).EXE" /11 /rx /br=9600:8:O:1 /tz=-8pst/pdt
- If I set it for auto-detect (/rx) when connected to Port 1, it
discovers a TSIP device (though not every time), and then ... LH does
nothing.
- My command line for LH on Lassen's Port 1 for TSIP: "C:\Program
Files (x86)\Heather\HEATHER (2).EXE" /11 /rxt /br=9600:8:O:1 /tz=-8pst/pdt
- If I set it for a TSIP receiver (/rxt) when connected to Port 1 ,
LH... does nothing.
- My command line for LH on Lassen's Port 2 for NMEA: "C:\Program
Files (x86)\Heather\HEATHER (2).EXE" /11 /rxn /br=4800:8:N:1 /tz=-8pst/pdt
- If I set it for NMEA (/rxn) when connected to Port 2, LH also does
... nothing.

All: NVM -- turns out I had a misconfigured RC filter on my RS232 interface card that was killing the TSIP commands to the Lassen GPS receiver .. it's all working now. FWIW, I found a very nice piece of free software that is a great complement to Lady Heather -- ProTempis' visual timing studio <https://www.protempis.com/support>. I especially like the fact that I can easily see the traffic between the app and the GPS receiver (as TSIP, for example). --Andrew -------------------------------- Andrew E. Kalman, Ph.D. On Sun, Jan 5, 2025 at 9:06 PM Andrew Kalman <aekalman@gmail.com> wrote: > Looking for some help here ... > > I have been using Lady Heather (LH, v6.xx) for some time now, and I have > it working fine with my HP Z3805As ... > > I recently acquired a Trimble Lassen SK II module (link > <http://tom-itx.no-ip.biz:81/~webpage/SBC/GPS/apps/lassensk2_info.pdf>and > link > <https://docs.ampnuts.ru/eevblog.docs/Trimble/Manuals/Lassen_SK_II.pdf>) > and I have it up and running in a system with proper DB9(DE9) serial > connectors :-) The final manual for these modules dates from 1999 (same as > the Lassen LP module). The Lassen SK II does bidirectional TSIP @ > 9600,0,8,1 on its Port 1 and unidirectional (i.e., output only) NMEA @ > 4800,N,8,1 on its Port 2. At my location, the Lassen SK II locks with at > least 4 GPS satellites in view. It's drawing around 110mA @5V with an > active antenna attached, which is pretty close to its specs. > > I can see the (default) $GPGGA and $GPVTG NMEA strings on Port 2 -- works > fine. I can see some sort of binary on Port 1 -- look OK. But I cannot get > past the "empty" startup screen in Lady Heather on either. I am connecting > to it via a USB-to-serial adapter that is on my COM11. > > - My command line for LH on Lassen's Port 1 for TSIP: "C:\Program > Files (x86)\Heather\HEATHER (2).EXE" /11 /rx /br=9600:8:O:1 /tz=-8pst/pdt > - If I set it for auto-detect (/rx) when connected to Port 1, it > discovers a TSIP device (though not every time), and then ... LH does > nothing. > - My command line for LH on Lassen's Port 1 for TSIP: "C:\Program > Files (x86)\Heather\HEATHER (2).EXE" /11 /rxt /br=9600:8:O:1 /tz=-8pst/pdt > - If I set it for a TSIP receiver (/rxt) when connected to Port 1 , > LH... does nothing. > - My command line for LH on Lassen's Port 2 for NMEA: "C:\Program > Files (x86)\Heather\HEATHER (2).EXE" /11 /rxn /br=4800:8:N:1 /tz=-8pst/pdt > - If I set it for NMEA (/rxn) when connected to Port 2, LH also does > ... nothing. > > Any ideas on why LH isn't playing nice with this receiver? > > > > > > > --Andrew > > -------------------------------- > Andrew E. Kalman, Ph.D. >