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

Tue Oct 18 11:37:13 EDT 2016

This old laptop seems to have had a hiccup so this is a repost,Jim

      From: "antqradio at sbcglobal.net" <antqradio at sbcglobal.net>
 To: "njarc at mailman.qth.net" <njarc at mailman.qth.net> 
 Sent: Tuesday, October 18, 2016 10:08 AM
 Subject: Re: [NJARC] AR-88 talk at David Sarnoff Radio Club meeting

I guess the "gold standard" for the restoration of the AR-88 family is Henry Rogers'  http://www.radioblvd.com/ar88.htm webpage.  But Joe Jesson of DSRC might have access to material that Rogers didn't so there is always the possibility that "new" material will popup.  If anyone goes to the talk please share anything new.  If the talk is taped, I hope that it will be posted.Regards,Jim

      From: Alex Magoun <a.b.magoun at ieee.org>
 To: njarc at mailman.qth.net 
 Sent: Monday, October 17, 2016 9:53 AM
 Subject: [NJARC] AR-88 talk at David Sarnoff Radio Club meeting

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.~~~
Alexander B. Magoun, Ph.D., Outreach Historian
IEEE History Center
Samuel C. Williams Library 3rd FloorStevens Institute of Technology1 Castle Point Terrace
Hoboken NJ 07030-5991
USA

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

IEEE - Advancing Technology for Humanity

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Reply = Poster
Reply All = Everyone

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