Icom R-71A Modifications

Icom R-71A Modifications

Post by Illya » Mon, 23 Mar 1998 04:00:00

Does anyone know the modification proceedure for increasing the number of
memories and lengthening battery life?

 
 
 

Icom R-71A Modifications

Post by Eric F. Richard » Tue, 24 Mar 1998 04:00:00



> Does anyone know the modification proceedure for increasing the number of
> memories and lengthening battery life?


You want to look into the Willco ICM-1024B, which replaces the RAM with
a ROM backup and adds memories.

They have -- or had -- a web page, but I couldn't find it quickly.

--
Eric F. Richards

"The weird part is that I can feel productive even when I'm doomed."
 - Dilbert

 
 
 

Icom R-71A Modifications

Post by Steve Kenne » Tue, 24 Mar 1998 04:00:00


>Does anyone know the modification proceedure for increasing the number of
>memories and lengthening battery life?


Here is a reprint of an old post:

_______________________________________________________________

Path: news.teleport.com!not-for-mail

Newsgroups: rec.radio.shortwave
Subject: Re: R71A Battery Failure
Date: Tue, 23 Dec 1997 18:26:38 GMT
Organization: PacAir Communications
Lines: 43


NNTP-Posting-Host: ip-pdx36-19.teleport.com
X-Newsreader: Forte Free Agent 1.0.82
Xref: news.teleport.com rec.radio.shortwave:106581


>I have an R71A with a failed battery.  I have heard rumors that I can
>replace the battery, hit a reset button, key in a country code, and
>'bingo' the radio is back.  Any information on this rumor will be
>appreciated.  Steve Legge

It isn't that easy.  The IC-R71A as delivered from the factory has its
operating limits stored in volatile memory.  When the battery goes, so
goes the information and the radio ceases to function.  

There are two choices.  One is to send it back to an Icom Repair
Facility and get a new battery installed and the operating limits
reloaded.  This will cost you labor, a battery, and shipping/insurance
both ways and you get the same achille's heel... it WILL happen again!

The second choice is to invest $137.95 (includes shipping) and get the
Willco No-Fail Memory board that replaces the Icom memory board.  This
board has the operating system in non-volatile memory that requires no
battery to keep the radio alive, and provides enough additional memory
for 1024 memory channels if you wish to mod the receiver.  The
standard 32 memory channels are retained if the simple drop-in
substitution is used.

The Willco board also extends the receiver's tuning range to
10kHz-31Mhz.  No more "fooling" the radio with the "tuning-knob" trick
to get it to tune LF!  No more worrying about "losing-it" ever again.

Willco has no web presence (that I know of).  Their contact info is:

Telephone       (815) 723-1874

Fax             (815) 723-1436

I have no connection with them, other than being a customer.

Steve
WB7PSD