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Re: [Amps] Input SWR revisited

To: "'Jim W7RY'" <w7ry@centurytel.net>, <amps@contesting.com>
Subject: Re: [Amps] Input SWR revisited
From: "Gary Schafer" <garyschafer@largeriver.net>
Date: Wed, 14 Jan 2015 21:09:52 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Hi Jim,

Good to hear from you again.

Yet it is true! Some guys earlier were saying that they were using the tuner
inside of their radios feeding their amp. 
And some claimed that the SWR would change when they changed the length of
cable without a tuner between the radio and amp.

Yesterday I ran this on my HP 8753 network analyzer.

73
Gary  K4FMX

> -----Original Message-----
> From: Jim W7RY [mailto:w7ry@centurytel.net]
> Sent: Wednesday, January 14, 2015 8:04 PM
> To: Gary Schafer; donroden@hiwaay.net; amps@contesting.com
> Subject: Re: [Amps] Input SWR revisited
> 
> Not true Gary.
> 
> And we are not talking about using a tuner between the solid state
> exciter
> and the amplifier.
> 
> 73
> Jim W7RY
> 
> 
> -----Original Message-----
> From: Gary Schafer
> Sent: Wednesday, January 14, 2015 11:57 AM
> To: donroden@hiwaay.net ; amps@contesting.com
> Subject: Re: [Amps] Input SWR revisited
> 
> It means that-- if you are looking at the SWR at your radio and there is
> a
> tuner after the SWR bridge, any changes in cable length after the tuner
> will
> show a change in SWR at the radio if you do not touch the tuners tuning.
> This assumes that the load on the end of the cable is not 1:1.
> 
> 2nd, the SWR will always remain the same at the radio no matter what
> length
> of cable is used (except or cable loss) or what the load impedance is as
> long as that load impedance remains the same.
> 
> 73
> Gary  K4FMX
> 
> > -----Original Message-----
> > From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of
> > donroden@hiwaay.net
> > Sent: Tuesday, January 13, 2015 2:01 PM
> > To: amps@contesting.com
> > Subject: Re: [Amps] Input SWR revisited
> >
> > Clear as Mud .........
> > What does it all mean ???
> >
> > Don W4DNR
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> 
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