[ICOM] IC211e

[Jim Hargrave]

Richard,

Are you using a switching power supply? 

Have you disconnected all cables going to computer...etc.

Have you tried shorting the Antenna connector?

 

Personal experience:

The IC-211 and IC-245 were notorious for noisy and intermittent PLL
boards.

The PLL board uses a 2 sided circuit board. Feedthroughs were not
plated, instead they soldered "Steel" pins in the holes. They look
like the common straight pin used for sewing. In time the pin heads
corrode and cause havoc. Replacing all (13 - if my memory serves me)
with a short copper wire completely solves the intermittent
operation.

 

Several reviews are posted at eHam:
http://www.eham.net/reviews/detail/926

 

73, Jim - w5ifp at gvtc.com

 

>> -----Original Message-----

>> From: Icom [mailto:icom-bounces at mailman.qth.net] On Behalf Of

>> Richard Bown

>> Sent: Saturday, August 27, 2016 11:17 AM

>> To: icom at mailman.qth.net

>> Subject: [ICOM] IC211e

>> 

>> Hi all

>> Not sure if this is an active list or not.

>> but just incase it is

>> I have an ancient IC211E which I plan to use as an IF for
microwave

>> use.

>> I have noticed a problem on receive and that is on SSB around

>> 144.83 MHz there is a horrible burbling noise . It doesn't seem
to be

>> the PLL going out of lock as the received signal a beacon is T9
and

>> stable. And its still there with the antenna feed disconnected,
so it

>> definitely internally generated.

>> Any known common faults that may be applicable , before I dive in
,

>> as I'm aware that if its in the PLL its like opening Pandoras Box

>> Thanks

>> 

>> --

>> --

>> Best wishes /73

>> Richard Bown

>> 

>> Email :  <mailto:richard at g8jvm.com> richard at g8jvm.com

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