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Subject:
Re: How Can I Tell if the "Jumper" is Installed in My Used MFJ-998?
From:
"Richard B. McDonald" <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sun, 27 Dec 2015 15:27:26 -0800
Content-Type:
text/plain
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text/plain (72 lines) 
Hi Tom!

Thanks for your below.  And, I read everyone else's concurrences as well.
Yes, your below is my plan now.

73,
Richard KK6MRH/AG

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Tom Behler
Sent: Sunday, December 27, 2015 9:21 AM
To: [log in to unmask]
Subject: Re: How Can I Tell if the "Jumper" is Installed in My Used MFJ-998?

Richard:

I am not sure whether others will agree, but my approach would be to assume
the jumper is installed, and try to configure the tuner for the TS2000 via
the appropriate menu settings.

This way, if you are lucky, you will be all set without having to take the
cover off the tuner, find the jumper, etc..

I don't believe you could hurt the tuner with this approach.

But again, this is only my opinion.

Tom Behler: KB8TYJ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Richard B. McDonald
Sent: Sunday, December 27, 2015 11:24 AM
To: [log in to unmask]
Subject: How Can I Tell if the "Jumper" is Installed in My Used MFJ-998?

Hi!

 

My used MFJ-998 arrived yesterday.  I am told it looks good.  I do not yet
have the power supply for it; but I have ordered one.  However, the first
thing I must do to ensure it is A-OK for use with my Kenwood TS-2000 is to
ensure that the "jumper" is installed.  Is there some way to do this by
feel, or with sighted assistance by vision; either of which hopefully
without needing power or having to look inside of it?  From the manual,
discussing the rear panel it says:

 

"There is a jumper JP1 inside the MFJ-998 that must be configured properly
when interfacing to the various radios. Normally this jumper is installed
and is the factory default. Remove this jumper when interfacing to an Icom
IC-7000. Make sure this jumper is installed when interfacing to Kenwood
radios and FC-30 compatible Yaesu radios using the MFJ-5114K and MFJ-5114Y
interface cables, respectively. For the other radios, the position of jumper
JP1 is irrelevant."

 

Also, the above is a bit unclear to me about the "position" of this jumper.
Is there a particular position in which it should be, or is its position not
relevant so long as it is in fact installed?

 

73,

Richard KK6MRH/AG

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