Yes, the Mirage will do RF sensed keying, so there is
no reason you have to hard key the amp using this
jack.
73s John AA5JG
--- k4gun@comcast.net wrote:
> Thanks to all for the responses. Between the
> replies that made it to the list and the private
> replies, I've been given some great information. I
> should probably explain why I went with the amp.
> I'm aware that the difference between 50 and 100
> watts isn't dramatic. The antenna I am using is
> claiming a 6.8 dBd gain and I'll have it at roughly
> 19' above the ground. Allowing for loss and
> optimism, I had figured on 6 being closer to real
> world gain. That means ERP of 200 versus 400 watts.
> Given the choice, I'd prefer 400.
>
> That wasn't the only reason though. During my
> practice runs, I noticed that some stations would
> boom into my radio but others were barely audible,
> even with the volume at maximum. Even though the
> preamp in the Mirage isn't optimal, its better than
> nothing and could mean the difference in copying and
> not.
>
> It came down to a realization that I would get a
> modest improvement in TX and a modest improvement in
> RX and would only cost $100. I can always sell it
> and upgrade later but this seemed like a good place
> to start. I'll also be upgrading the antennas for
> the next one as well.
>
> One private reply was from a guy who owns this exact
> combination of amp and radio. From what he said, I
> shouldn't have to use the remote at all. The rf
> output of the radio will key the amp. I'll give
> this a shot and see how things function.
> Apparently, I shouldn't blow anything up this way as
> long as I have the rf out to minimum on the radio.
>
> As usual, this list has been quite helpful and I
> appreciate all of it.
>
> Steve
> K4GUN
>
> -------------- Original message --------------
> From: "Ellen Rugowski"
> <ellenjoanne2003@sbcglobal.net>
>
> > Honestly, I doubt it's worth it to even add the
> amp. Remember an S-unit of
> > difference is about 6 dB of gain. So, to get an
> addtional S-unit of
> > performance gain in the case of your IC-7000,
> you'd have to boost power 4
> > times - to 200W. You;ld be better off just going
> to a higher gain antenna.
> >
> > 73,
> > Ellen - AF9J
> >
> > ----- Original Message -----
> > From: "Rogers, Ron"
> > To: ; "VHF contesting list"
> >
> > Sent: Saturday, January 05, 2008 10:20 AM
> > Subject: Re: [VHFcontesting] Dumb question about
> Mirage amp
> >
> >
> > > The IC-7000 is already capable of 50 watts
> output on 144 MHz.
> > >
> > > The Mirage is capable of 100 watts
> > >
> > > Are you sure you want to go through the effort
> of adding this amplifier
> > and keying hardware, etc. for only 3db gain.
> > >
> > > Ron
> > > WW8RR
> > > ________________________________
> > >
> > > From: vhfcontesting-bounces@contesting.com on
> behalf of k4gun@comcast.net
> > > Sent: Sat 1/5/2008 9:57 AM
> > > To: VHF contesting list
> > > Subject: [VHFcontesting] Dumb question about
> Mirage amp
> > >
> > >
> > >
> > > I am aware that this is a dumb question. I'm
> asking it here because this
> > crowd seems to be a lot easier on new guys than
> some of the boards and you
> > guys are a lot more likely to actually know the
> answer. My question is
> > about hooking up a Mirage amp to my IC7000. I
> found a model B-310G for $100
> > shipped and figured for that price, I couldn't
> miss.
> > >
> > > So here is my problem. There are three
> connections on this unit. The
> > SO239 connectors are clearly marked for the radio
> and antenna. The third
> > input is marked "Remote Keyer" and it appears to
> be a 3.5mm jack. Not
> > wanting to mess anything up, I went to the Mirage
> web site to see what I was
> > supposed to do with this. I downloaded the manual
> and discovered its a
> > remote keyer port. I'm serious. That's all the
> manual says. There are no
> > instructions on when this should be used.
> > >
> > > So the question is, do I need this? If I do,
> which port do I insert it
> > into in the back of the IC7000? I have a keyer
> port and a "remote" port
> > back there, both with 3.5mm jacks. Finally, will
> just a standard audio
> > cable with two 3.5mm plugs work or do I need
> something else?
> > >
> > > I feel retarded for having to ask this. Its my
> first amp and I really
> > don't want to mess anything up. I wish the manual
> gave a better description
> > of how to hook up and use the unit.
> > >
> > > Steve
> >
> > _______________________________________________
> > VHFcontesting mailing list
> > VHFcontesting@contesting.com
> >
>
http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
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>
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