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DSRC Meeting @TCNJ
March 21, 2023 @ 7:30 pm – 9:00 pm EDT
Software Defined Wireless Spectrum Servers, Joe Jesson W2JEJ
MEETING AT: The College of New Jersey, 136 Armstrong Hall, Ewing, NJ 08628
2000 Pennington Road /Route 31 (1.5 miles south of I-295 exit 72)
Parking: Armstrong Lots 1&2 gates should be open; otherwise Lot 5
offers open parking. https://tcnj.edu/about/campus-info/campus-map/
Local Map: https://tcnj.edu/about/campus-info/campus-map/
This month we will meet in-person. We will simulcast the meeting on
Webex (see club e-mail) for those unable to attend.
Program:
The advance of inexpensive software-defined radio modules, FFT and
demodulation software libraries and low-cost servers (RasPi or Ubuntu
Linux), enables the remote visualization, selection, and demodulation
of RF signals. The history, SP theory, and architecture of this novel
remote spectrum receiver will be covered and solutions demoed. What
makes this discussed spectrum monitoring solution unique is that the
User Interface is any (HTML5) standard web browser!
The idea of a RF spectrum server on the internet technology was
initially pioneered by the NSA to remotely capture and analyze
transmissions of interest but this idea was prototyped at a fraction
of the cost by DSP signals experts, and amateur radio club members at
the University of Twente (The Netherlands) and fellow communications
students, created WebDSP.org. This Linux-based application software
was distributed to international experimenters and amateur radio
enthusiasts, eager to see their transmitted signal power spectra at
a distant location. .This was followed by a Hungarian engineering
student, Andras.Retzler, who rewrote code and released his open-
sourced version known as OpenWebRX (earned both his BSEE Senior
Project and MSEE Thesis from this project).
Take a sneak peak: https://www.receiverbook.de/map?type=&band=
Joseph Jesson, W2JEJ, is currently CEO of RFSigint Group and has over
35 years experience with Motorola, British Petroleum, Oak Technology,
and General Electric
Other meeting topics:
We will also review our club events in March: the Pi Day special
event N3P on 3.14, and the TCF Ham Cram followed by an ARRL VEC exam
session sponsored by DSRC on Saturday, March 18.
All are invited to join an informal pre-meeting dinner at Yummy Sushi
600 Campus Town Drive #303, Ewing Township, NJ 08638 at 6:15 PM.
This restaurant serves sushi, teriyaki, and other classics, plus
Pan-Asian favorites. The restaurant is a 2 minute walk from Armstrong Hall, literally just across the street. http://yummysushiewing.com/