[ICOM] Questions for Icom PW1 Users

[Don Moman]

I would have expected someone to answer by now but I'll offer a few
suggestions based on what I see with mine.

First, you do have the later PW-1 that lets the unit function as an antenna
switch even with the power off?  Mine is the later version - serial #1317,
not sure what number they changed at.

I supply +12 v to the PW-1 thru the ACC 1  DIN plug. I am not using the
"jumper 2" method as in the manual.   With this ext 12 v, then the leds on
the controller stay on regardless of main PW-1 power setting or the exciter,
and it functions as a band select and antenna switch.  The tuner does not
function if the PW-1 main power is off, in my case.  But with the PW-1 on
but the AMP function off it does seem to operate OK - the light blinks and
stays on - unlike yours.  The PW-1 will likely tune within the current band
to something previously stored in memory, but that's a preset thing not
really "tuning". Like you, I doubt the statement about generating its own
RF.....

73 Don
VE6JY



----- Original Message -----
From: "Bruce J. Howes" <bhowes at suscom-maine.net>
To: <icom at mailman.qth.net>
Sent: Wednesday, May 25, 2005 23:56
Subject: [ICOM] Questions for Icom PW1 Users


>
> Hello and thanks for reading this message.
>
> I'm confused, after reading the manual and speaking to Icom's normally
> excellent tech support, I have a few questions on this fine amp.
>
> First, I am using the PW1 with my Icom 765, seems like a nice match.
>
>
> 1) In the manual Icom states that the PW1 antenna tuner will function with
> the PW1 main power off, I assume that you mean the exciter is on but the
> main power to the PW1 is switched off, right?
> If so, then my antenna tuner will not function when I press the button for
> more than 2 seconds - as noted in the manual.
> With the 765 on, the LEDs for the antenna input and exciter input work
fine,
> and I can switch between the inputs, but pressing the Tuner button has no
> effect with the Main power switch off on the PW1.
> If I turn off the 765, the PW1 LEDs mentioned above turn off and the input
> switching function no longer works.
>
> Has anyone tried using the internal power supply by setting the PW1 dip
> switch?
> The PW1 manual outlines the procedure, wondering if that is just for
> non-Icom exciters.
>
> 2) Also noted that the tuner function does not seem to work when I have
the
> PW1 power on but the amp off.
> If I have the PW1 main power switch on and then press the tuner button,
the
> tuner light flashes like it is trying to tune, but then goes out.
> Kevin, the tech support rep at Icom told me that the PW1 "generates its
own
> RF for tuning" and the PW1 does not even have to be connected to a radio
for
> the tuner to work. - This sounds odd to me.
> If I try the same thing with 765's the transmit switch on in RTTY or CW,
the
> unit will tune and the tuner light will stay on.
> Is this correct?
>
> Sorry to ask what may seem such simple questions, but I am not certain who
> to believe on this one.
>
> Tnx!
>
> 73 Bruce W1UJR
>
>
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