VHF and Up contesting

N1MM logger has some features which will be appreciated especially by VHF and up contesters. The program supports bands up to the SHF bands 10, 24, 47, 76, 142 and 241 GHz

VHF options

The frequency is shown in the Bandmap and in the Entrywindow. When the frequency is above 1 GHz the band will be shown in cm, not the exact frequency in the Entry window. When entering QSOs it's easy this way to recognize the band in which you log.

Gridsquare Key Assignments (VHF and up)

Call History Lookup

More information about this can be found in the chapter Before the contest

This feature is very useful in VHF contests. Lookup examples are lookups for names (Friends file in RTTY contests), gridsquares for VHF contests, ages in All Asian DX contests etc. With the importing and exporting options the call history table can be updated.

Call history lookup is enabled with the option ('Config | Call History Lookup'). If enabled, it will look up in VHF contests: Grid Square (max 2) and Name.

Updating the Call History file

The program itself does have a function to export the log file to (update) the call history table under 'Tools, Update Call hisotyr with current log'. This fucntion will fill the call history table with the contents of the currently selected log.
Another method used which gives more control is the separate program called 'Thucydides' by Carel, PC5M. Check it out in the links chapter and the chapter Third party Software.

VHF master.dta file

For HF there are several master.dta files which contain callsigns of active contesters. Select the Master Callsign database link on the download page. There are separate files for RTTY and for VHF and up contesting. A very nice tool to create a master.dta file has been written by Alex, VE3NEA. This tool can be downloaded from his site (see the links section) and is freeware! A text file with callsigns is needed. An example master.dta file for VHF is available from the N1MM website in the 'Other Files' menu under 'Downloads'.

Transverter support

N1MM logger has transverter support in the form that per band an offset frequency can be set. Right click on the bandmap and select Set transceiver offset frequency
The offset is saved by the program so after a restart the offset is still there.

An offset can also be added to adjust the transverteror radio to the exact frequency (like when the oscillator is a bit off).
See the 432000,12 example where a correction is being made of 120 Hz. Great to have to be right on the packet cluster spots!

Bandup/Banddown
 If you have a radio that has 160-2m, and you want to use bandup/banddown, you'll need to put entries in for bands that you do not have transverters for, if there are gaps in bands that the radio/transverters cover. You would really have to put a lot of transverters offsets in if you want the frequencies to "wrap".

If the  next band is not defined as offset to a frequency that my radio can handle and bandup/down is used, it goes to an HF frequency (without offset).
.
  • It does not work if your radio does not accept the calculated frequency. i.e. set up for Band: 144000 and IF freq: 28000 and you put in 146100 and your radio can't go to 30100, you will get strange results.
  • Remember to enter the frequency of the transceiver and not that of the transverter when going into split mode (Alt+F7).

VHF Beacons

N1MM logger is capable to show beacons in the bandmaps for a defined period of time. Normally every spot in the bandmaps will disappear after the 'Packet Spot Timeout' which is valid for every spot in the bandmap. The same for beacons coming in as spots. So an extra import option has been added for beacons with where the spot timeout can be set to a much higher value (like days or even weeks).

Importing beacons and showing them in the bandmaps for the bands can be done by importing a text file in a specific format. Enter the text BEACONS in the Entry window callsign field and a file selection dialog will open where a .txt file (with beacons in the correct format) can be imported. An example beacons text file can be found in the N1MM logger program directory (called Beacons.txt). IN the beacons text file lines with a # are remarks, the first line in the text is the timeout for all beacons in hours. Every line with a beacon must contain callsign, frequency (in kHz) and grid locator (4 or 6 digit). A comment per beacon is optional. Note the ; as separator (don't forget one or it won't import). Below an example beacons.txt file.

# Hours to stay in bandmap (mostly > 24 or > 48)
60
# Call beacon;Frequency;Grid;Comments
OZ7IGY/B;144471,1;JO55WM;
PI7CIS/B;144416,2;JO22DC;Should always be heard
DL0PR/B;144486,3;JO44JH;Switches power!
GB3VHF/B;144430.4;JO01DH;QRG with a .
ON0VHF/B;144418,5;JO20;4 digit grid

A file with beacons in the correct format for Europe (Region I) can be found on the N1MM website under 'Other Files' in the 'Download' menu.

Note: No need to add the NCDXF/IARU Beacon Network on 14.100, 18.110, 21.150, 24.930 and 28.200. They are already incorporated in the program and the beacon transmitting at that time (when your PC clock is correct) will be shown in the Entry window statusbar when you are listening on one of these frequencies.

Example Contest setup

Additions are welcome!

Create (days) before the contest

Before starting the program

After starting the program

Have fun during the contest!