Re: [Elecraft] XV144 help please
There are internal attenuator adjustments in your transverter. You might want to pop the cover and see what you got. It should easily get up to 20W out with the 1 mW drive, assuming you have the right internal input settings. That is what I use here also, 1mW drive. Since your wattmeter is reasonably close to the XV LED output value, your XV LED power output display calibration is probably OK. - Mike -- View this message in context: http://elecraft.365791.n2.nabble.com/XV144-help-please-tp7570199p7570205.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] XV144 help please
Bob, I use the XV144 here w/ my K3, and my Config:xvtr power is set to L1.00, and that will easily drive the XV144 power LED's into the red. I suspect the issue is not with your K3 settings, but rather with the jumpers inside the XV144 and the setting of R22 that acts as an input attenuator. 73, Dale WA8SRA On 2/21/2013 3:39 PM, kd...@denstarfarm.us wrote: Howdy K3' people: I finally got one of my two 15 el 144 yagis up and thus could try hearing and sending on 2m. I set Band 144 off, so I think that means it looks for the XV144 though I do not have internal 2m anywaY, However I have heard nobody and the guys wgo tried are a few hundred miles away and may not be heard by me anyway. I have a Daiwa wattmeter of questionable quality at 144. It says key-down I have 5w out. The 7w green LED lights on thr transverter. I have Config:xvtr power to L1.50mw . I am not seeing any measurable SWR where I did when I tried my long-wire for reference (duh). shouldn't I see 20 watts out of that baby? I believe Don did when he put it together. At moment I have but one transverter in the line; others are not wired in, are removed for the test. Their settings were set to off also. So: XV144 7w Green LED is all I get, sometimes the 10w Green LED toggles over. Daiwa says 5 watts out. thanks __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] XV144 help please
Bob, It did produce 20 watts with 1 mW input when it was here. And the LEDs are calibrated to what *my* wattmeter was reading. My wattmeter is checked periodically against a calibrated 40 dB power tap and a W7ZOI Power Meter (homebrew, but calibrated). So remove the top cover, and try adjusting R22 (the Input Attenuator) to see if you can bring the power up. Please test it using a good 50 ohm dummy load that is rated for 144 MHz or higher. SWR on the feedline to your new antenna could create a mismatch in the XV144 output Low Pass Filter and result in low power output. Use your 30+ MHz Low Pass Filter between the K3 and the XV144 just in case 144 MHz RF is getting back into the K3 power level detection circuit and causing a false indication of K3 power output. If all else fails, return it to me - it is still under my workmanship warranty and any parts needed should fall under the Elecraft warranty. 73, Don W3FPR On 2/21/2013 3:39 PM, kd...@denstarfarm.us wrote: Howdy K3' people: I finally got one of my two 15 el 144 yagis up and thus could try hearing and sending on 2m. I set Band 144 off, so I think that means it looks for the XV144 though I do not have internal 2m anywaY, However I have heard nobody and the guys wgo tried are a few hundred miles away and may not be heard by me anyway. I have a Daiwa wattmeter of questionable quality at 144. It says key-down I have 5w out. The 7w green LED lights on thr transverter. I have Config:xvtr power to L1.50mw . I am not seeing any measurable SWR where I did when I tried my long-wire for reference (duh). shouldn't I see 20 watts out of that baby? I believe Don did when he put it together. At moment I have but one transverter in the line; others are not wired in, are removed for the test. Their settings were set to off also. So: XV144 7w Green LED is all I get, sometimes the 10w Green LED toggles over. Daiwa says 5 watts out. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
