[digitalradio] 2 Meter FM Digital Modes

2009-07-14 Thread Phil Williams
Is there anyone out there who is active in using digital modes on 2 meters? 

I would be especially interested in experiences with digital modes such as MFSK 
and DominoEX.  

There has been a number of presentations on this particular aspect of the hobby 
and it would be interesting to know how what is being used for equipment and 
software.

73

philw de ka1gmn



Re: [digitalradio] 2 Meter FM Digital Modes

2009-07-14 Thread mikea
On Tue, Jul 14, 2009 at 09:20:30PM -, Phil Williams wrote:
 Is there anyone out there who is active in using digital modes on 2 meters? 
 
 I would be especially interested in experiences with digital modes such as 
 MFSK and DominoEX.  
 
 There has been a number of presentations on this particular aspect of the 
 hobby and it would be interesting to know how what is being used for 
 equipment and software.
 

Sure. I'm limited to 25W out of a Moxon, and I'm down in a floodplain
where LOS isn't particularly good. Want to set up a sked? 

-- 
Mike Andrews, W5EGO
mi...@mikea.ath.cx
Tired old sysadmin 


Re: [digitalradio] 2 Meter FM Digital Modes

2009-07-14 Thread kh6ty
Phil,

We have been running a 2 meter FM net in FM02 using DominoEx 8 with 
great success for over a year now. Various transceivers are used, such 
as FT-897, IC-746Pro, IC-2000H (FM only) and others. We have had 
checkins from as far away as 200 miles. Antennas are all 
horizontally-polarized beams. Local stations mostly use 2-element quads 
and distant stations use 14 dBi or greater antennas. Software is either 
fldigi, Multipsk, or DM780.

Many signals are under limiting and under the noise threshold, but by 
using DominoEx, we still get good print. The mode is very tolerant to 
mistuning (unlike MFSK16) and fairly resistant to multipath interference.

73

Skip KH6TY


Phil Williams wrote:

 Is there anyone out there who is active in using digital modes on 2 
 meters?

 I would be especially interested in experiences with digital modes 
 such as MFSK and DominoEX.





Re: [digitalradio] 2 Meter FM Digital Modes

2009-07-14 Thread kh6ty
In my reply, IC-2000H should have read IC-2200H.

73, Skip KH6TY

Phil Williams wrote:


 Is there anyone out there who is active in using digital modes on 2 
 meters?

 I would be especially interested in experiences with digital modes 
 such as MFSK and DominoEX.

 There has been a number of presentations on this particular aspect of 
 the hobby and it would be interesting to know how what is being used 
 for equipment and software.

 73

 philw de ka1gmn

 

-- 
*Skip KH6TY*
http://KH6TY.home.comcast.net