N1MM and the Omni 6

Setting Omni 6 Plus Filter Selection in N1MM Logger


Page 4 -Roofing Filter for Omni 6 Plus

            Two monitor set up

  N1MM Logger main streen on

                  Monitor 1


Multiplier and Info windows on Monitor 2.


        Filter code setting screen.

N1MM Logger, in my opinion, is one of the most full-featured contesting programs available to contesters. It can be downloaded, free, from www.n1mm.com

 (NOTE: Click on each image to see a larger view.)

Since Logger has many settable screens available to the user, I opted to use two monitors for the program. If your running Win XP, all that is needed to run two monitors is a video card with that capability. I use an nVIDIA FX5500 video card.

Logger, on it's bandmap's allow you to switch 6MHz IF filters on the Omni 6+, by clicking on the 'NAR' or 'WIDE' button at the top of the bandmap. The default switched filters are '500' and '250'. Since I prefered switching between the '1.8' and '500' positions, I had to change Logger's default codes. The process turned out to be quite simple.

The default hex codes for the Omni 6+ are:

Mode   hex                Filter            hex

LSB       00                  2.4kc          02

USB      01                  1.8kc          03

CW      03                   500hz         04

FSK     04                   250hz         05

You can set either the same or different filter selections for either VFO A and/or VFO B. On Logger's main screen, put your mouse cursor in the VFO A bandmap screen and right click on your mouse, which will bring up a menu. Highlight 'Set transceiver filter codes' which will bring up a selection screen. Click on 'CW WIDE' and the filter code setting screen appears, as shown in the bottom picture.The default code will read 254 254 4 224 6 3 4 253. In this hex string, the 6 = Set xcvr mode; 3 = Filter Mode, and 4 = Select Filter. The only hex number you change is the 'Select Filter' code. In my case, I changed the default 4 to the code for the 1.8 filter, which is 03, or simply 3. So the new CW WIDE hex string would now read: 254 254 4 224 6 3 3 253 .

To change the narrow filter from it's default of 250hz to it's new value of 500 hz, you follow the some process as above, except you select the 'CW NARROW' menu selection , and you change the default '5' to the 500hz selection code of 3. When you are finished changing the code, simply click on OK and your done.

To change the filter selection when you are using VFO B, you follow the same process as above, except you start by right clicking the mouse when you have it's cursor in the VFO B bandmap.

A long explanation but in practice, it only takes a minute at the most. Logger allows you to change filter selection (only the 6MHz filters) for SSB and for FSK also, using the same process as above.