[DSP-10] DSP-10 Power-to-Tone recording

[Bob Larkin]

Here is a note about added capability!

The Power-to-Tone (P2T) function has been around for a long while and 
has proven useful for peaking things on both noise and signals.  Info on 
this is at
http://www.janbob.com/kd7ts/v396/7P2T.HTM
I added the capability to record the output level to a file when using 
P2T.  This is a lot easier than trying to remember numbers and jotting 
notes, etc.

This appends to the same UHFA_1.DAT file and when P2T is running, 
CTRL-F toggles record on and off:
http://www.janbob.com/kd7ts/v396/fileform1.htm#FULL_SPECTRUM
There is a different format that is appropriate for P2T.  Data lines are 
entered to the file about every 0.6 sec and look like
"HPT 2020 8 29 1642 2 16.7005556 -0.076"
where the HPT field means it is for the P2T function, and the fields 
that follow are year, month, day, hhmm, second, decimal hour of day (as 
0.0 to 23.99999) and power in relative dB.

The last two items can be easily used in a spread sheet to plot the dB 
level vs time.  It is helpful to make notes of the approximate DSP-10 
time for various measurements, such as Sun, Quiet Sky and Earth.

It is best to enable the ALT-F file record after enabling ALT-V P2T. 
This prevents adding bunch of long HA and HB records from the normal 
ALT-F saves. Likewise, toggle ALT-F turn-off before ALT-F.  If you 
forget, the HPT records will all be on the UHFA_1.DAT file, but with the 
other records before or after.

P2T operation is not affected by the ALT-F file save.

To add this capability, switch out your current DOS program uhfa.exe for 
uhfa397.exe:
http://www.janbob.com/electron/dsp10/UHFA397.zip

Bug reports are welcome.

73, Bob  W7PUA