The PMRC Digital Education Net

PMRC repeater: 147.030 PL 91

A voice and data net to discuss digital modes

Every Tuesday evening at 1900 (7:00 PM)

The first 60  minutes of tonight's net will be an  FLDIGI  (no microphone) net using  THOR 22  for checkins, and  8PSK500F   for traffic,
or  MFSK 128  for images.   Please have  FLAMP  open and running, as I will send out a  csv  spreadsheet using  FLAMP.
Maybe we will have some political news.....

After the digi net, around  8 pm, we will continue to explore the newest version of 
WSJT-X  (2.0)  and take a second look at the new features  in  FT8  mode.
Please download the latest version at the  WSJT-X  home page  at  Princeton university.
We can practice on 2m  and  on  80m for those capable of HF operation.

I tuned in this morning to  14.078  (USB dial freq)  and listened for about ten minutes, and heard stations from all over Europe and NA  on the mode  FT8.
Remember to first synchronize your computer clock with a standard internet signal....  you   MUST  be within one second of true UTC  to work the  JT  modes.

My antenna on 20m  was a simple  17 ft home-made vertical with alum tubing,  about  10 ft above ground, with two horizontal  17 ft radials.....  the antenna lashed to a big tree.
Feedline was  100 ft of  RG213  with a tuner in the shack.
Simple and inexpensive antenna,  but it puts out (and catches) low-angle signals from all over the world.

Here is a sample screen capture with  FT8.   I tried a few times to snag the 
9H1ET  station from  Malta .... no luck, using 20W.  His signal at my qth was  -22 dB  (yes, FT8 works at that signal level).
Note the MENU:    UTC time,  the
received signal strength (dB) and the difference in clock times (DT) and the audio frequency (pitch) on the waterfall  (Freq), then the message.
The  GREEN  highlighted signals are the  CQ's.
My transmissions are highlighted in blue.

The waterfall was teaming with signals.


The waterfall shows about 15 different stations all crammed into a  2 kHz  bandwidth!

CU all tonight on the  DEN
Barry  k3eui


Allstar is a voice over IP communication mode based on the Asterisk PBX platform.  An analog type transceiver is connected to other Allstar nodes via the Internet.  Doug, WA3DSP, developed the code to run Allstar with an inexpensive Raspberry PI.  For more information see:

Thanks to Doug and the Philmont club for setting this up.


On a side note if anyone is interested in HF NBEMS nets there is a new group called Pa NBEMS Net.  To join the group click here:

Then click Join This Group.  NBEMS stands for Narrow Band Emergency Messaging System and the Pa NBEMS Net meets every Sunday morning at 0800L using Fldigi.  Barry, K3EUI, is the net manager.  We would like to see more participation from the DEN members.