[Mobile-Portable] Question about HF mobile

[David S McCallum]

AMENNNNNNNNNNNNNNNNN. Mac

On Thu, 19 Jul 2007 01:39:31 +0000 W8WEJ <w8wej at citynet.net> writes:
> put the rig in cw , key it and see what you get..
>  
> if you are actually getting 100 watts ssb pep out, it may well 
> show(on 
> your meter) a lower amount as the meter may not be indicating  the 
> peak 
> reading, but average  ..the real teckies can get in to this more
> I would ground the rig with a good braid,,, short path,  make sure 
> the 
> antenna ground is good,,not a wire, not the antenna coax.. and see 
> what 
> gives.. you may well not have the problem that you think you have..
> mobile is another world... but doable..and, lovable..after 52 yrs 
> would 
> not be with out it
> good luck  73 john w8wej
> 
> 
> 
> needhame1 wrote:
> > ---- Original Message ----
> > From: ka5bkg at sbcglobal.net
> > To: mobile-portable at mailman.qth.net
> > Subject: Re: [Mobile-Portable] Question about HF mobile
> > Date: Wed, 18 Jul 2007 17:14:30 -0500
> >
> >   
> >> Ok all I have another question abt my HF mobile setup.
> >>
> >> I'm about to run out of ideas.
> >>
> >> I put a MFJ-269 analyzer on my 40m Hustler antenna the other day, 
> the
> >>
> >> analyzer shows 1.1:1 at 7277, flat SWR but yet I go to transmit 
> and
> >> might be 
> >> getting 70 watts PEP out.
> >>
> >> If I had known HF was this tricky, never would have even 
> attempted to
> >> try.
> >>     
> >
> > Not really tricky, but some things to pay attention to.  These 
> rigs
> > are putting out 100 watts when everything is set up right, so 
> power
> > requirements aren't quite the same as with a 25 watt 2 meter rig.  
> We
> > might have already discussed this, but is your power cabling up 
> to
> > snuff?  How big is it?
> >
> > And how are you measuring the power out?  Some meters read high, 
> some
> > read low, the metering in a typical HF rig can easily be out of
> > adjustment 30 watts or more.
> >
> > I've already deleted the earlier messages about your setup, would 
> you
> > mind giving us the rundown again, i.e. what type of coax, how long 
> a
> > run, size of power wires, etc.?
> >
> > 7 3
> > Earl
> > KD5XB
> >
> > KD5XB -- Earl Needham
> > Clovis, New Mexico DM84jk
> > http://groups.yahoo.com/group/cw_bugs
> > ZUT
> >
> > ----
> > Your Moderator: Dick Flanagan K7VC, 
> mobile-portable-owner at mailman.qth.net
> >
> >
> >
> >   
> ----
> Your Moderator: Dick Flanagan K7VC, 
> mobile-portable-owner at mailman.qth.net
> 
> 


David S. McCallum, USAF RET. CMSGT. (W7SAC)