RE: BC 780 memory expansion

There was a memory expansion mod (Bill Cheek derived) that I did to my
Pro-2006's along with a Linkall which gave me 16 different memory banks of
400 channels each for 6400 channels total, and the Pro-2042 with a Linkall
which gave me 16 memory banks of 1000 channels each for 16000 channels
total.  Nothing like having 16 different memory banks available to switch
between and the Linkall connected to 5 LEDs (4 bit hex plus an enable
indicator IIRC) to display what "scanner" was in use.  Essentially using a
larger capacity memory chip with the same footprint/pin out and controlling
one (or more) memory address lines that the scanner/OE memory does not
utilize.  I remember having to invert one of the Linkall control lines to
get the Linkall working with the Pro-2042.  I'd need much better
magnification to do the SMT memory expansion mod all these years later.  A
lot of mods back then with these scanners, the OptoScan boards, PROgrammit,
AOR AR8K's, and led into early trunk tracking using Trunker / eTrunker
software on a computer, and two scanners -- one with a discriminator tap and
the other being computer controlled.

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Tom Hirsch
Sent: Tuesday, September 11, 2012 8:50 AM
To: [email protected]
Subject: [UnidenBC780XLT] BC 780 memory expansion

Hello again from Florida,

  For those interested in making this fine scanner even better, you can get
additional memory added to these scanners.  I've had the memory expansion
done to 4 of my BC-780s and 2 of my BC-245s.

  This work is done by the Frequency Fan Club, a company in Georgia that
caters to auto racing fans who use scanners at the race tracks to monitor
the racers talking to their pit crews, and other comms at the race tracks.
Website is www.racescanners.com


  The modification adds a complete additional memory or memories to the 780.
You can scan only one memory at a time.  To change memories, you turn off
the scanner, flip a switch to the other memory, then turn on the scanner,
and you instantly have a complete new database.   You can get a doubling,
tripling, or quadrupling of the memory of the 780, which is great if you
need to set up databases for a large geographic area. 

  Details are here:  http://www.racescanners.com/~draley/repairs.htm

  I'm not connected with this firm, nor am I being compensated for these
remarks.   Just trying to help fellow scanner hobbyists.