[Elecraft_K3] Wanted -XV50
I would like to try modifying the XV50 to our 70MHz band. I wonder if anyone with a new K3 has one that they no longer need as the K3 covers 50MHz. Mike
RE: [Elecraft] XV144 calibration
Hi Guys Thanks Don, Matt and others answering on my issue. I have now seen the light. I was deeply in to a engineering mode, where i tried to do everything according to spec. The spec on the XV144 say IF input from 28MHz to 30MHz and a output from 144-146 MHz. Then the thing need to operate in that area and the natural place for alignment would be 145MHz in the midt of the window. And being in engineering mode my thinking was that the K2 was designed to match the XV144 Now you guys brought me back to real world. Why would I run the transverter with K2 That do not do FM above 144.8, that in Denmark are the border line to the the FM area (144.8 and up.) So trying to cover most used areas for CW and SSB i should properly align at 144.3. Where the output from K2 should be at full level and no issues should be seen. Sometime i guess my education is of no use where looking at all the spec and stuff are the thing to do, when just a little common sense it needed. :-) Br. OZ1BZJ Michael A engineer proberly expirence what one rock band has called a Momentary Lapse of Reason On Tue Feb 21 23:15 , Don Wilhelm sent: Michael, That is normal - the K2 spec for 10 meter coverage is 28.0 to 28.8 MHz at 10 watts output and it falls off more rapidly at the high frequency end than the low end. You may be able to increase the usable coverage at the expense of the maximum available output by peaking the 10 meter bandpass filter at some frequency higher than the 28.2 point that is indicated in the manual. I would suggest peaking at 28.8 or even higher if you need to achieve good power output over the entire 28.0 to 30.0 MHz. If you do that, check the maximum power output at both ends of your chosen band and try to balance the maximum available power at both ends - adjust the peaking frequency up or down to achieve good coverage over your desired range. 73, Don W3FPR -Original Message- The SSB Firmware was ok, version 1.8 so no problem there. Now i have found the issue on the K2, but not the solution. The desribed issue seen on the low power out are comming from the 28-30 Mhz. if i check indicated power by the internal powermeter it drops over the freq. with the power set for 5W i do reach 5.4 W on 28 Mhz at 29 Mhz it is 4,9, still ok but at 30 Mhz it is down at 0,3 W So trying 10 W 29 Mhz only goes to same 4.9, so a rolloff on increasing freq. are seen. Proberly normal, but passband seems to be to narrow ??? Any idea is this normal ?? Thanks in advance Br. OZ1BZJ Michael ___ 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
Re: [Elecraft] XV144 calibration
HI That is also excatly what the userguide are saying. But if it is true what mentioned in this thread, that the power fall off fast approaching 29MHZ then it is hard to do with the K2, as mentioned i can hardly get 1/3 of the 1 mW out at the 145.5 on the Xv or 29.5 on the low power from the K2. and about 1-2 W on a 10 W setting on high power out. So if this is normal behaivur of the K2, then it do not make much sense to me to align at 29.5 MHz. Ofcause the option is that the band filter on my K2 is having wrong centre and that the power fall off quicker then on other K2. So there for my idea of tunning the XV with in the good area of the K2, that still cover all the CW and SSB part in OZ. A issue that would be good to get clear on as i have a XV50 comming to me soon. OZ1BZJ.. Michael. On Wed Feb 22 13:38 , John DAusilio sent: My understanding is that you peak the gain at 145.5 in order to achieve a reasonable compromise between gain and noise figure at the low end of 144 .. de w1rt/john On 2/22/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi Guys Thanks Don, Matt and others answering on my issue. I have now seen the light. I was deeply in to a engineering mode, where i tried to do everything according to spec. The spec on the XV144 say IF input from 28MHz to 30MHz and a output from 144-146 MHz. Then the thing need to operate in that area and the natural place for alignment would be 145MHz in the midt of the window. And being in engineering mode my thinking was that the K2 was designed to match the XV144 Now you guys brought me back to real world. Why would I run the transverter with K2 That do not do FM above 144.8, that in Denmark are the border line to the the FM area (144.8 and up.) So trying to cover most used areas for CW and SSB i should properly align at 144.3. Where the output from K2 should be at full level and no issues should be seen. Sometime i guess my education is of no use where looking at all the spec and stuff are the thing to do, when just a little common sense it needed. :-) Br. OZ1BZJ Michael A engineer proberly expirence what one rock band has called a Momentary Lapse of Reason On Tue Feb 21 23:15 , Don Wilhelm sent: Michael, That is normal - the K2 spec for 10 meter coverage is 28.0 to 28.8 MHz at 10 watts output and it falls off more rapidly at the high frequency end than the low end. You may be able to increase the usable coverage at the expense of the maximum available output by peaking the 10 meter bandpass filter at some frequency higher than the 28.2 point that is indicated in the manual. I would suggest peaking at 28.8 or even higher if you need to achieve good power output over the entire 28.0 to 30.0 MHz. If you do that, check the maximum power output at both ends of your chosen band and try to balance the maximum available power at both ends - adjust the peaking frequency up or down to achieve good coverage over your desired range. 73, Don W3FPR -Original Message- The SSB Firmware was ok, version 1.8 so no problem there. Now i have found the issue on the K2, but not the solution. The desribed issue seen on the low power out are comming from the 28-30 Mhz. if i check indicated power by the internal powermeter it drops over the freq. with the power set for 5W i do reach 5.4 W on 28 Mhz at 29 Mhz it is 4,9, still ok but at 30 Mhz it is down at 0,3 W So trying 10 W 29 Mhz only goes to same 4.9, so a rolloff on increasing freq. are seen. Proberly normal, but passband seems to be to narrow ??? Any idea is this normal ?? Thanks in advance Br. OZ1BZJ Michael ___ 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 ___ 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
RE: [Elecraft] XV144 calibration
Thanks Don Good point, i have proberly been a little careless on this SW requirement, as i got the K2#5111 with all options in one shipment from Elecraft. I guess they normal take good care that the right versions are included when shiping together. But i will indeed check as soon i get home from work if i got the right version. If you are the owner of the XV144 and using it in the Low power setup, could i ask you to use the tune button to TX the transverter with the power set to the full. and the see if your K2 display will show the 1 mW about. In my case it showed something like 0.17mW with the power set to full 1mW, and i tuned the XV144 according to that. Only now i think about if that display was really true i have tuned the XV to deliver max power at 1/5 input. Then maybe if Keying with the mike. are giving the 1mW no wonder i overload the XV. Thanks in advance OZ1BZJ BR. Michael On Tue Feb 21 13:11 , Don Wilhelm sent: Michael, Check the 'Firmware Requirements' section of the K60XV manual. You must have Version 1.07 or later of the KSB2 firmware installed to provide proper power level control when using SSB through the low-power output. It does sound like you have an earlier version of the KSB2 firmware. 73, Don W3FPR -Original Message- A question on the XV calibration. I am trying to align the XV144 using K2 with XV60 to drive the transverter. It is the QRP K2. When doing the alignment, there are several times need to key the K2 at the same time to tune on the transvert=r. For that reason I decided to use the tune on K2=st1:place to transmit as it will TX until I press the key again. All tune= up and the 20 W out was aligned. Now when I have connected a microphone to the K= and try a little USB I seem to drive the XV144 power in the r=d area. And I need turn down the power more then half to not have the red =ed on the XV144 on. So when=PA100 is installed the power transmitted from K2 can be less then the wanted power my the Power setting. Is somet=ing similar the case using the LOW power output of XV60 If so what signal should I then use to tune the XV144 cw or a USB wher= I talk to the microphone? Thanks in advance OZ1BZJ Michael Jensen ___ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.15.11/264 - Release Date: 2/17/2006 ___ 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
[Elecraft] Using K2 with broken D1 on the K60XV
Hi During last night trying to finish op the asssembly of the K60XV i faced MHz) the S the transverter band n i was looking for bad soldering components. I did hit D1, the pind diode that ofca have ofcause placed an order to replace this diode, but it wil not arrive here for the weekend. Beeing a lazzy basterd, i like to use th and put back th it will not be a issue t with a broken or removed diode ifnbs Did i get that wrong ?? If any comments on the S meter showing full signal, they are welcome as Thanks in advance OZ1BZJ Michael ___ 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
