[NJARC] AR-88 talk at David Sarnoff Radio Club meeting

[Alex Magoun]

Some of you will enjoy Tuesday night's meeting of the David Sarnoff
Radio Club, originally founded at RCA's research labs and now
continuing in various meeting spots in Mercer County. Read below for
details on the AR-88 talk and the club's other activities.

Best, Alex

                   DAVID SARNOFF RADIO CLUB
                     OCTOBER 2016 MEETING

Design History and Restoration of the RCA AR-88 Interception Receiver
                      Joe Jesson W2JEJ

* Tuesday, October 18, 2016, 7:30 PM
* American Red Cross, 707 Alexander Road, Suite 101,
  Princeton, NJ 08540. See http://n2re.org/ for map and directions.

While initially exploring the history of wireless security, Joe presents
the finding, acquiring for the Sarnoff Museum on The College of NJ
campus, and restoring the RCA AR-88. He positions this receiver as
Bletchley Park's preferred interception receiver of German
communication during WWII. He shows the techniques applied to
breaking the NAZI enigma encryption and related methods to wireless
decryption methods today.

Finally, Joe will show how he incorporated the 1941 AR-88 RF design in
his electronics active component lab by having the students simulate,
in PSPICE and LTSPICE the AR-88 tracked RF sections and how the
existing 1941 vacuum tube design compares to a modern FET RF design -
given the AR-88 existing inductors and capacitors but changing the
bias to reflect the differences between the Pentode Vacuum tube and
the FET model.

Joe Jesson W2JEJ (was KC2VGL) is currently the CEO of RFSigint Inc,
a Wireless IP/Patent advisory service. Patent claims are compared
and mapped and expert witness offerings on IoT, M2M, Telematics,
and Telemetry patents. Joe is an engineering researcher on a DOT
grant and teaches, as Adjunct and Visiting Professor at TCNJ,
several engineering classes and Labs.

MEETING SPEAKERS
Every one of our members has interesting skills and knowledge worth
sharing with others. Please contact Rebecca KA3IAX, John NU3E, or
Dennis KC2IMI with your ideas.

UPCOMING AREA HAMFESTS (from http://www.qsl.net/w2vtm/hamfest.html
&http://www.arrl.org/hamfests/)
* Fri 25 Nov - Fair Lawn ARC Ham Radio Auction
  http://auction.fairlawnarc.org/

DSRC WWW HOME PAGE - http://n2re.org/

DSRC REPEATER - N2RE, 146.46 output, 147.46 input (+1 MHz offset),
131.8 PL

DSRC 2 METER FM NET - First Tuesday of each month, 9 PM, DSRC repeater

DSRC 80 METER PSK31 NET - Second Tuesday of each month, 8:30 PM, BPSK,
3580.5 kHz ±

ARES/RACES - Members are encouraged to register themselves with Mercer
County ARES/RACES. To do so, just send an e-mail to the Mercer County
EC, Kip Burnett at kb2egi at arrl.net for more information.

Two local emergency stations are supported by DSRC. N2ARC is the
callsign at the American Red Cross of Central New Jersey, the lead
American Red Cross chapter in the event of a statewide emergency. W2MER
is the callsign at the Mercer County Emergency Operations Center,
located at the Dempster Fire Service Training School.

"Open houses" are held the last Monday of each month (except December
and May) at 7:15 PM at both the American Red Cross, 707 Alexander Rd
(2 blocks east of Rt 1, use rear entrance) and at the Mercer County EOC
located on Lawrence Station Road. Lawrence Station Road is a right turn
off of Quakerbridge Road about one half mile south of Quakerbridge Mall.
Just follow the signs to the fire school. The Mercer County EOC is in
the basement.

MEMBERSHIP - Club membership is open to anyone with an interest in
amateur radio. There are no dues. To become a member, simply attend a
club meeting and fill-out a membership application. If you would like
to receive club announcements via e-mail, please send your name,
callsign, and email address to mailto:nu3e at arrl.net <nu3e at arrl.net>.

~~~
Alexander B. Magoun, Ph.D., Outreach Historian
IEEE History Center
Samuel C. Williams Library 3rd Floor
Stevens Institute of Technology
1 Castle Point Terrace
Hoboken NJ 07030-5991
USA

+1 732-981-3414
a.b.magoun at ieee.org
www.ethw.org
@IEEEHistory
www.ieee.org/history_center

IEEE - Advancing Technology for Humanity
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