[HCRA] FW: Fwd: Experimenter HF net organizing

[Daniel Sullivan]

----Original Message Follows----
From: Richard Rucker <rrucker at verizon.net>
To: Ch91 outreach
Subject: Fwd: Experimenter HF net organizing
Date: Tue, 01 Aug 2006 04:02:58 -0400


From: hal <hfeinstein at cox.net>
Date: July 31, 2006 9:30:50 PM EDT
To: tacos at amrad.org
Subject: Experimenter hf net organizing

Dick Cramer and myself are beginning to organize an hf experimenter  net 
whose purpose is to support both voice and data experiments in  the hf band. 
  We would like to work in the 17meter band, on 18.140  and a second channel 
(not yet chosen) in the 20m band.

The ideas of this net is to bring together hams interested in  building and 
performing hf communications experiments. At some point  we would like to 
automate this process to use unmanned automatic  "robot" stations that 
receive their orders over hf and listen and  collect data transmitted by an 
experimenter. But until we can design  the robot participating hams can 
collect the data and send it back to  the experimenter for analysis.  If 
collection software is required  the experimenter is responsible for writing 
these routines and  distributing them to participating stations, perhaps via 
a designated  web site.

I have talked to several hams about the network and they said they  are 
willing to participate, at first as collection stations for other  
experimenters and then as experimenters themselves.

The main purpose of the net as a "platform" for experimenters.  And  second, 
but equally important purpose, is to allow the participants  to understand 
the experimenter's approach, the technology and how the  experimenter will 
use the data collected by net members. I don't know  yet how to support this 
part of the net but it is just as important  for participants to understand 
and comment upon the experimenter's  approach as is the experiment itself.

This week we are starting to assemble equipment and antennas for the  17m 
and 20m channels and in a short time we will initiate trial  contacts 
between members in NoVirginia, SC and Florida to get a  better idea of the 
propagation.  Paul R has provided us with an  VOACap propagation model to 
use for this purpose.

Perhaps one of the first experiments will be to test out an idea of  using 
turbo code FEC on hf to see how noisy the path can get and  still allow 
relatively error free communications to get through.

Net participants who have expressed  interest include
   Dick Cramer    rwcfl at NOSPAMearthlink.net    florida
   Hal Feinstein  hfeinstein at NOSPAMcox.net     No Virginia
   Terry Fox         wb4jfi at NOSPAMamrad.org      Columbia S.C

Several others have spoken to me about participating. If your  interested 
please drop a line to Dick, Terry or myself for the latest  info. (delete 
the NOSPAM to reply to the address)

hal, wb3kdu

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