[Icom] PW1 VL1000 ACOM 2000

Fri, 26 Jul 2002 09:24:44 -0400

Dave,
The amp detects the exact freq. of the transmission from the exciter.  It
will then revert to a memorized setting for any one of 10 antennas for that
freq. and auto tune the output via stepper motors for each 200 khz. band
segment in under .5 seconds.  The amp will handle a 3:1 SWR at full output!
Up to a 5:1 SWR at reduced output.  You do not need an antenna tuner when
using the Acom.  The input to the Acom is a flat perfect 50 ohms, you may
turn your antenna tuner from the transceiver off.
In fact, one of the monitoring functions of the RCU is a frequency counter.
Bruce
K1XR

----- Original Message -----
From: "Dave Edwards" <[email protected]>
To: <[email protected]>
Sent: Thursday, July 25, 2002 11:41 PM
Subject: Re: [Icom] PW1 VL1000 ACOM 2000

> Bruce...I'm still using the old L7 with my PRO, but I was curious...If the
> only cable to the ACOM is the exciter input, how does the amp know that
you
> switched bands??
> ...Dave
> ----- Original Message -----
> From: "Bruce Marton" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, July 25, 2002 10:09 PM
> Subject: Re: [Icom] PW1 VL1000 ACOM 2000
>
>
> > Hello Adam,
> > Yes I remember your experience with HV.  But I warned you about holding
a
> > Martini in one hand while adjusting HV with the other!  You are supposed
> to
> > have the non adjusting hand in your back pocket for safety reasons.  The
> > damp glass only helps in conducting the juice, that is the electrical
> juice
> > back to ground.
> >
> > With the Acom, there is no need to be inside the amp for anything.  It
is
> > completely computerized and all control functions are done via the
> out-board
> > RCU.   In all reality, the Acom is as automatic with your rig as the
PW-1
> > is.  It will sense your frequency segment and band in less than a split
> > second, and auto tune, change bands and if you have the automatic
antenna
> > switch, will select any one of up to 10 antennas to be used on a
> particular
> > segment.  All of this is completed in under .5 seconds!  The only
> > interconnect cable used is your coax from the exciter to the amp.  You
> don't
> > even need an ALC line.
> >
> > The amp will run all day, key down at full legal limit, no problems.
You
> > may monitor any two of twenty parameters on the RCU in addition to the
> > forward and reflected power meters, all at once.
> > The distortion figures are much better than any of the solid state amps
or
> > for that matter even many of the tube amps on the market.  It uses a
pair
> of
> > ceramic tetrodes vs. most other tube amps running triodes.  And the best
> > part of it all is the lack of noise.  My computer makes more fan noise
> than
> > the Acom!  In fact the fan in the IC 781 is louder than my Acom.
> >
> > The entire amp is constructed of heavy duty aluminum, front panel
> included.
> > No plastic like the solid state amps.  Adam, you know me and how I do my
> > advance studies before making a purchase, and the Acom was my first
choice
> > by a long shot.  But this is all just my opinion and I hope this sheds
> some
> > light on the subject for anyone looking to make a lifetime investment in
> an
> > amplifier.  Do look at all the amps out there, then check the Acom last,
> you
> > will end up buying one.
> > Bruce K1XR
> >
> > ----- Original Message -----
> > From: "Adam Farson" <[email protected]>
> > To: <[email protected]>
> > Sent: Thursday, July 25, 2002 7:33 PM
> > Subject: RE: [Icom] PW1 VL1000 ACOM 2000
> >
> >
> > > Hi Bruce,
> > >
> > > It all comes down to personal choice. I have had excellent results
with
> > the
> > > Quadra in the 4 years (almost) that it has been in my station. The
PW-1
> is
> > > somewhat more automated when driven by an Icom exciter - it tracks the
> > > frequency and band selection on the exciter, whilst the Quadra
requires
> a
> > > "stimulus" when changing bands or retuning (F SET or TUNE button).
> > >
> > > The main factor which kept me away from the Acom was that near-fatal
> > > accident at CERN in 1968.
> > >
> > > Best 73,
> > > Adam, VA7OJ/AB4OJ
> > > North Vancouver, BC, Canada
> > > http://www.qsl.net/ab4oj/
> > > Note new e-mail address:
> > > mailto:[email protected]
> > >
> > >
> > > -----Original Message-----
> > > From: [email protected] [mailto:[email protected]]On
> > > Behalf Of Bruce Marton
> > > Sent: July 25, 2002 15:23
> > > To: [email protected]
> > > Subject: Re: [Icom] PW1 VL1000 ACOM 2000
> > >
> > >
> > > Acom 2000 has it over the others, hands down.
> > > Lower distortion, higher output (up to 2.4KW) fully automatic, fully
> > > protected and much cheaper finals to replace if needed.
> > > Makes a 500 watt and up, transceiver.  12 watts drive gets me around
500
> > to
> > > 600 watts output.  75 to 80 watts gets you up around 2 KW plus.  I run
> my
> > > drive down at 12 watts most of the time and around 50 watts if needed
to
> > do
> > > 1.5 KW.  Keep everything fairly cool.  The noise level from the fans
are
> > > almost zero in the Acom.  This is your best value in a full auto tune
> > > operation.
> > > Bruce K1XR
> > >
> > >
> > >
> > > ----
> > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > Icom FAQ: http://www.qsl.net/icom/
> > >
> >
> > ----
> > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > Icom FAQ: http://www.qsl.net/icom/
>
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom FAQ: http://www.qsl.net/icom/
>