[ICOM] 718 Receiver

[John Geiger]

I think that AM would be at 40 watts, but RTTY should
be at 100.  I had this problem once with a 746, all of
a sudden it was only transmitting at 50 watts.  Called
up Icom, and the service dept told me to check the
soldering on the end of the power cord where it
attached to the PS-as I had an Astron PS and had
soldered ring lugs on each end.  I did that, and
resoldered both, and it worked fine after that. 
Sounds like that is not a problem with the Icom supply
as the cord is wired into the supply, but it is just a
thought.

73s John NE0P

--- awallacejr at sbcglobal.net wrote:

> Thanks George. That may be the answer since I was
> using RTTY to transmit a 
> carrier. I will check with Icom. And again, that 718
> is one neat little 
> radio--not a toy at all.
> 
> Andy K5VM
> 
> 
> ----- Original Message ----- 
> From: "George Lee" <geokr5c at cablelynx.com>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Sunday, December 05, 2004 11:03 PM
> Subject: Re: [ICOM] 718 Receiver
> 
> 
> > Andy, I am not all that familiar with the 718 but
> was wondering if there 
> > is a way the transmit is locked in the AM or RTTY
> mode?
> >
> > Probably not so but, it sure sounds as if it is
> somehow locked on the 1/2 
> > power level often found on 100 watt radios when in
> the AM, FM, RTTY mode.
> >
> > Good luck guys.
> >
> > 73, George
> >
> > ----- Original Message ----- 
> > From: <awallacejr at sbcglobal.net>
> > To: "ICOM Reflector" <icom at mailman.qth.net>
> > Sent: Sunday, December 05, 2004 11:49 AM
> > Subject: Re: [ICOM] 718 Receiver
> >
> >
> >> Thanks Gary. It is a new Icom power supply with a
> dedicated connection to 
> >> the radio and he is also using an Icom 180 auto
> tuner properly hooked up. 
> >> We also did two hard resets of the radio CPU to
> no avail. Also checked 
> >> the antenna SWR with a MFJ meter--it is under 1.5
> with no tuner. Will try 
> >> the dummy load approach for impedence problems
> but it is interesting that 
> >> the radio puts out exactly 1/2 its rated power;
> not close to 1/2 but 
> >> exactly 1/2 or 50 watts key down on RTTY.
> >>
> >> You may know Sandy-N5NBW--who owns the radio.
> >>
> >> BTW, the little radio is a lot of fun to operate
> and seems to be a lot of 
> >> bang for the buck--especially if we can get 100
> watts out ;-)
> >>
> >> Andy K5VM
> >>
> >>
> >> ----- Original Message ----- 
> >> From: "Gary Fiber" <g.fiber at verizon.net>
> >> To: "ICOM Reflector" <icom at mailman.qth.net>
> >> Sent: Sunday, December 05, 2004 11:16 AM
> >> Subject: Re: [ICOM] 718 Receiver
> >>
> >>
> >>> What are you using for a power supply?
> >>>
> >>> I had this happen on an FM transceiver once and
> found the binding posts 
> >>> even though real finger tight were loose.  The
> transceiver was current 
> >>> starved. Tightening up with a wrench solved the
> trouble.
> >>>
> >>> Have you got a dummy load to use in place of the
> antenna. A low SWR does 
> >>> not always equate to the correct impedance.
> >>>
> >>> Its unlikely it would come from the factory so
> low on output power. 
> >>> Possible a bad final could be the problem though
> they are pretty good.
> >>>
> >>> Gary K8IZ
> >>>
> >>>>Hi All-
> >>>>
> >>>>Have a friend with a new 718 that I helped him
> set up. No matter what 
> >>>>transmit power setting we use ( including
> transmit= H ), we can't get 
> >>>>the radio to put out more than 50 watts. Have
> very low antenna SWR and 
> >>>>received S-9 SSB reports from Calif ( we live in
> Texas ). Key down in 
> >>>>RTTY shows exactly 50 wattts on radio's power
> meter.
> >>>>
> >>>>Any thoughts? Could it have a bad power
> transistor?
> >>>>
> >>>>Thanks, Andy K5VM
> >>>
> >>> Gary Fiber K8IZ
> >>> GROL PG-19-6691
> >>> Washington State Resident
> >>>
> >>>
> >>> ----
> >>> Your Moderator: Dick Flanagan K7VC,
> icom-owner at mailman.qth.net
> >>> Win a new Icom IC-756PROIII and help QSL/QTH.net
> >>> Details at: http://mailman.qth.net/
> >>>
> >>
> >>
> >> ----
> >> Your Moderator: Dick Flanagan K7VC,
> icom-owner at mailman.qth.net
> >> Win a new Icom IC-756PROIII and help QSL/QTH.net
> >> Details at: http://mailman.qth.net/
> >>
> >
> >
> > ----
> > Your Moderator: Dick Flanagan K7VC,
> icom-owner at mailman.qth.net
> > Win a new Icom IC-756PROIII and help QSL/QTH.net
> > Details at: http://mailman.qth.net/
> > 
> 
> 
> ----
> Your Moderator: Dick Flanagan K7VC,
> icom-owner at mailman.qth.net
> Win a new Icom IC-756PROIII and help QSL/QTH.net
> Details at: http://mailman.qth.net/
> 



		
__________________________________ 
Do you Yahoo!? 
The all-new My Yahoo! - What will yours do?
http://my.yahoo.com