Makes perfect sense to me ... now that I have heard it! Thanks very much, Ron.
-----Original Message----- From: Ron D'Eau Claire [mailto:[EMAIL PROTECTED] Sent: Saturday, July 22, 2006 11:17 PM To: Sanger, Joseph; elecraft@mailman.qth.net Subject: RE: [Elecraft] General Trasverter Operation Question That's normal Joseph. Here's what's happening. The XV output power is determined by measuring the RF voltage at the antenna connector. That is converted into a level that lights the power LEDs. The problem is that the output power measurement is ONLY accurate when the XV is terminated in a 50-ohm non-reactive load. As you adjust your tuner for a low SWR, you are changing the load the XV sees and so its output power indication is thrown off. Simply use enough output power to get a good indication on your SWR meter, then adjust things for the lowest SWR you can get while ignoring the LED power indicator. Then, when you have the SWR set to minimum, set your K2 output for 20 watts (or whatever you want) indicated on the XV. As long as the SWR is very low when you set the power level, it'll be accurate. Ron AC7AC -----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! -- WB2SSB ------------------------------------------------------------------------------ This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email. ============================================================================== _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
