Richard,

Since you got the tuner used, you might want to find out (if possible) 
what radio the previous owner used it with.

There is an internal jumper that needs to be changed if used with some 
brands of radio.  The default position of the jumper is correct for 
Kenwood and some Yaesu's, but  needs to be removed for some Icom's.


Not trying to make things more complicated.  I think the jumper will be 
in place in most installs, so it is probably there and you will be good 
to go.   If it was removed for some reason it won't interface correctly.

73, enjoy the toy, Steve KW3A


On 12/24/2015 12:26 PM, Richard B. McDonald wrote:
> Hey All!
>
> Boy am I glad I asked this question here.  I asked this of MFJ, and they
> specifically told me that the radio interface cable provides all the power
> needed.  After the replies here, I looked to the manual.  It clearly says
> that you must have the power source connected, and that the radio interface
> cable does not provide power to the tuner.  Indeed, it also says that you
> need to turn on the tuner first before you turn on your radio.
>
> The MFJ-998 I purchased is used.  It does not come with the power cord.  So,
> I just purchased the MFJ-1316 power supply for the MFJ-998.
>
> Many thanks & 73,
> Richard KK6MRH
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Tom Behler
> Sent: Thursday, December 24, 2015 6:49 AM
> To: [log in to unmask]
> Subject: Re: Is the Interface Cable for the MFJ-998 Enough for Power?
>
> Richard:
>
> In addition to the Kenwood interface cable, there is a separate DC power
> cord for the MFJ 998.  That additional power cord should come with your
> unit.  And, you will need a DC power source to power the tuner.
>
> With everything connected properly, the MFJ 998 will not operate unless your
> rig is turned on.
>
> I hope this is stated clearly.  If not, please ask, and I'll try again.
>
> Tom Behler: KB8TYJ
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Richard B. McDonald
> Sent: Thursday, December 24, 2015 7:40 AM
> To: [log in to unmask]
> Subject: Is the Interface Cable for the MFJ-998 Enough for Power?
>
> Hi!
>
>
>
> I have purchased an MFJ-998 auto tuner.  It does not come with the separate
> power supply for it, the MFJ-1316.  However, I plan to use the rig interface
> cable for it, the MFJ-5114K for my Kenwood TS-2000.  So, 1) does the
> interface cable provide enough power to the MFJ-998 while the TS-2000 is
> powered on, and also 2) if the TS-2000 is not powered on can I still turn on
> the MFJ-998 and adequately operate it (e.g., manipulate its menus)?
>
>
>
> 73,
>
> Richard KK6MRH
>