[INRAD] Problem with IC-718

[Clark Savage Turner]

Was this filter purchased from another ham?  The filters from INRAD 
have instructions, or you can get a copy easily.

You shouldn't have to solder in the filter if there is a socket there.  
Wiggle the filter to see if it becomes active, if you find it is 
continuity by wiggling, you have your answer.

You may also get a resistor of the proper value to simulate the filter 
impedance and "jump" the filter position for CW.  Then when you switch 
to CW, if the receiver goes dead, you know that it is your menu setup 
or the filter switching that is the problem.  I've done this to test 
filters and have found some bad ones.

Where do you live?  If you're near the mid coast of CA, lets get 
together and set this thing up!

Clark
WA3JPG

On Aug 23, 2005, at 12:40 PM, Bill Lawlor wrote:

> I recently bought a 116 filter for my IC-718. No instructions
> accompanied the filter. I consulted the Icom manual and plugged the 
> filter
> into the "option filter" socket. The Inrad catalog says the 718 
> filters are
> "drop
> in".
>
> I can't get the filter to work using any of the menu setup 
> combinations.
> When the CW mode is active and I push the FIL button the receiver goes
> dead-no sound at all. The same thing happens when the filter is 
> removed.
>
> Does this mean I have to pull the main board and solder the filter 
> pins? Or
> does this mean the filter is defective?
>
> Please respond. This is frustrating.
>
> Thanks, Bill Lawlor