[Elecraft] General Trasverter Operation Question

[Sanger, Joseph]

I wasn't even sure i had a problem ... are you saying that the behavior that i described below ... is abnormal?  should the power indication on the xv-50 not vary as i tune the tuner?  How should it behave as I adjust the tuner?
 
My antenna options are extremely limited at my 3rd floor apt qth ... i can try a vertical as well; next step.
 
Thanks, John.
 

	-----Original Message----- 
	From: John D'Ausilio [mailto:jdausilio at gmail.com] 
	Sent: Sat 7/22/2006 9:34 PM 
	To: Sanger, Joseph 
	Cc: 
	Subject: Re: [Elecraft] General Trasverter Operation Question
	
	

	end-fed dipole doesn't sound like a good idea .. very high impedance 
	fed at the end. Feed it in the middle and your problem will likely 
	disappear 

	de w1rt/john 

	On 7/22/06, Sanger, Joseph <Joseph.Sanger at nyumc.org> wrote: 
	> I am talking about a tuner in between the XV-50 and a rather depressing little end-fed dipole antenna! 
	> 
	>         -----Original Message----- 
	>         From: Don Wilhelm [mailto:w3fpr at earthlink.net] 
	>         Sent: Sat 7/22/2006 9:18 PM 
	>         To: Sanger, Joseph; elecraft at mailman.qth.net 
	>         Cc: 
	>         Subject: RE: [Elecraft] General Trasverter Operation Question 
	> 
	> 
	> 
	>         Why would you need a tuner between the K2 and the XV-50?  The XV-50 has an 
	>         input attenuator that provides a good 50 ohm load, and the K2 should drive 
	>         it just fine with only a piece of coax connected between the K2 and XV-50 - 
	>         the SWR on that coax line should be very close to 1:1. 
	> 
	>         73, 
	>         Don W3FPR 
	> 
	> 
	>         > -----Original Message----- 
	> 
	>         > 
	>         > I am using a cross-needle, MFJ tuner in between my XV-50 and antenna. 
	>         > The interaction between the tune and transverter is confusing me a bit 
	>         > and I was wondering if someone could educate me as to what is going on? 
	>         > 
	>         > 
	>         > 
	>         > I set my transverter output power to something around 20 watts, as 
	>         > measured on the XV-50 LED display ... then put K2 into tune mode ... and 
	>         > then adjust the controls on the tuner to minimize the reflected power 
	>         > and maximize the forward  power, which has the effect of minimizing the 
	>         > SWR (indicated by the crossover poinit of the two needle indicators). 
	>         > At least, that is what I think I am supposed to do.  But as I do this, 
	>         > as I lower the SWR indicator on the tuner, the power output on the XV50 
	>         > goes up into the red zone, lighting up all of the LED's on the front 
	>         > panel.  This worries me, and I then back off the power control on the K2 
	>         > until I am back to 20 watts or so as measured by the XV-50 display. 
	>         > 
	>         > 
	>         > 
	>         > Am I on the right track here?  Or am I doing something stupid? 
	>         > 
	>         > 
	>         > 
	>         > Thanks in advance to the kind soul who may take the time to straighten 
	>         > me out! 
	>         > 
	>         > 
	> 
	> 
	> 
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