[Elecraft] KPA100 Power Surge Advice
Advice would be much appreciated. I would start by saying that I am not very electronically skilled. The power suppy goes from the power supply to a KPA100 in a separate enclosure which I built from a kit, then to the K2 Radio. The KPA100 does not light up, no power. 73 - Larry(G0IKE) __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K2/100
I built my KPA100 14 years ago in a separate enclosure and it still works fine. I wonder if the upgrade kit would provide improved performance. Any feed back will be appreciated. Larry - GOIKE __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K2 Low Power on 12 and 10 Meters
In the past I have looked up various problem fixes in the Old Elecraft Digests, but can no longer find them? I would appreciate suggestion as to how I fix my K2 low power problem on 12 and 10 Meters. I think that there is a pot to adjust? Running the K2 without PA (ATU and Power Meter shows 1:1.1) into a dummy load. I find that all HF bands get a full 10-12 watts output, except 12 and 10 Meters, where I get 7 watts on 12M and less on 10M. This reduced output is reflected on the watt meter when I hook up my external KPA100/KAT100 and use more power. Help will be appreciated in solving the output problem and also where to find the Old Elecraft Digests. 73 - Larry- G0IKE (K2 -2424) __ 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
[Elecraft] KX3 and KPA100/KAT100
I have built the KPA100/KAT100 in a separate enclosure for my K2 and would like to know if anyone has experience of using these two kits with a KX3? 73, Larry - G0IKE __ 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
[Elecraft] K2 external auto ATU
Advice/experience will be appreciated. I have an upstairs shack (ugh) with much RF. Tried to earth without much luck. Should use a balanced antenna, but. I have a windom antenna cut to 20%x80%, overall length 136 feet; used for 80-thru-10 meters. It is fed with vertical twin lead for approximately 20 feet to a 4:1 balum and from there with coaxial to my rig. Whole antenna is 30 feet above the ground. Now my question. I am using a K2, and have built a KPA100 and KAT100 in separate enclosure. I would like to move the KPA100 and KAT100 in separate enclosure to the twin lead from antenna and use as an external auto ATU, then coaxial to shack, the distance being approximately 30 feet from the twin lead. I can locate external auto ATU inside of garage. What would be the problems? RF connection from K2 for 30 feet; control cable from K2 for 30 feet (maximum distance ?); 12v power? Thanks in advance - Larry (G0IKE) k2 - 2424 __ 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
[Elecraft] K2/KPA100
I have started to experience low power on 12 and 10 meters with my KPA100. I get 65 watts on 12 meters with a good SWR (1:1) and 35 on 10 meters with a good SWR (1:1). I initially thought of the low pass filters in the KPA100 but the schematic shows that this would affect 15 meters as well, and 15 meters give out a good 100 watts. The K2 alone into a dummy load is good: 12-14 watts on all bands, except with 10 watts on 12 meters and 8 watts on 10 meters; which if I remember right is correct. Any advice will be appreciated. Larry (G0IKE) K2 - 2424 __ 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
[Elecraft] K2 Must be good
With so few items about the K2 appearing, it must show how stable the K2 is. Larry (G0IKE) K2 2424 __ 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
[Elecraft] Fed-UP with Waffle
I have subscribed to the reflector for a several years and now find it has become a WAFFLE ( re: UI rant dramatised) or a K3 whinge! Please someone sort this worthwihile source of information out. Larry (G0IKE) ___ 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] K2 KPA Low Power on 12 10 Meters
Naked K2 gives me good output on all bands. Problem bands with KPA100 (12 Meters = 13.5 watts and 10 Meters = 10.8 watts). Through the KPA100 into a dummy load gives 100 plus on all bands except; 12 meters = 76 watts and 10 meters 47 watts. This is a new problem and have looked at manual and cannot see a common link? Help would be appreciated before I open up my KPA. Thanks - Larry (G0IKE) K2 #2424 ___ 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] Re: Best way to secure RF ground from 2nd floor
I recently tried this on my multi band offset center dipole and would be interested in any comments. 300 ohm twin feed from antenna to near ground level; box there containing 4:1 balun which connects via RG8 to rig in second floor room. In the box ( one foot above ground) I connected outer shield of coaxial to horizontal copper earth pipes below ground. I was getting RF in shack and poor SWR on 80M band. The result now is that I get good SWR across 80M band and no RF in shack. I am getting good signal reports, but have not had the opportunity to check on the amount of power that is actually getting out of the antenna. Larry (G0IKE) K2 #2424 ___ 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] Re: Best way to secure RF ground from 2nd floor
I recently tried this on my multi band offest center dipole. 300 ohn twin feed to near ground; box there contailing 4:1 balum which connects via RG8 to rig in second floor room. In the box ( one foot above ground) I connected outer sheild of coxial to horizontal copper earth pipes below ground. Result is that I get good SWR across 80M band and no RF in shack. I am getting good signal reports, but have not had the opportunity to check ___ 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] K2 Tuning Knob
Some time ago I purchased a Yaseu FT100 Tuning Knob for my K2, and a friend wants one, but I cannot remember where I got it. I know it was a phone number given on the reflector and wondered if anyone can help me. Thanks - Larry (G0IKE) k2 # 2424 ___ 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] K2 - Replacement Battery
I wondered if anyone in the UK has found a local source for a K2 replacement battery that fits internally? Thanks - Larry G0IKE ___ 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] K2/100
Small bug that I can not work out and can not find error in mauals I have built the KAT100 and KPA100 in separate EC2. Works really fine, BUT often I get message on the K2 display that says 'not in Se or SF' cannot really tell which. Has anyone got a clue for me? Thanks- Larry (G0IKE) ___ 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] Noise Generator
No electronic background, but have successfully followed excellent instructions and completed KAT100 and KPA100 and have these working in an EC2 enclosure. Not bad for a guy who cannot tell the difference between a resistor and a capacitor! Now for dumb question. I would like a noise generator, mainly for setting up CW filters, but also for SSB. Does the 2 T-Gen 2-Tone Test Oscillator work for both, and how do I connect to PC to run with Spectrogram. Thanks in advance - Larry (G0IKE) ___ 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] KPA100 Alignment
I am having a problem getting 100 watts on all bands and would appreciate advice. On low power I get over 10 watts on all bands, except 8.5 on 10M, which I think is OK. On high power I get 100 watts on most bands, but 75 watts on 30M, 90 on 20M and 95 on 10M. I have followed procedures in manual and all adjustment have been made for high power. I have a good external watt meter and a good dummy load, so have ruled these out as to the problem. To set the bias I tried the procedure to put a DMM across R7 and adjust, which seemed OK. Bust as I was getting low watts on some band I tried the method spelled out in the manual, i.e.- put a DMM in line with the positive power supply and found that the adjustment on R6 was somewhat different than the fist method. But, in either case the power on the bands are the same. I looked on Elecraft's web site and see that I am not the first to have this problem. The advice seems to be check transformers and especially T4. I have checked all Toridals and cannot see anything wrong with spacing or number of turns. Any advice? - please. Larry (G0IKE) ___ 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] KPA100 Problem?
I am not an experienced builder, but having purchased a ready built K2, I decided that the experience of building a KPA100 would be good for me. And everything has gone pretty well until I got to page 41 of the manual and conducted the tests. Most (J3 lead, Q1 and Q2, and J2) are fine and the readings are as expected. However, Q9 and D13 readings should be over 10K and I am getting 15Megs on my DMM, which is an older digital type. Granted, 15M is greater than 10K. Q9 (MOSFET) and D13 (Diode) appear OK and I have worked through the schematic, taking resistance checks along the way, and everything appears OK. I am thinking that it could be my DMM and any thoughts from the group would be appreciated. Larry (G0IKE) ___ 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] Low Power ?
I wonder if my K2 (Serial # 2424 with latest mods and software) is set up correctly and would appreciate comments. Output power with CAL CURR set at 3.0 amps is as below. Increasing CAL CURR to 5 amps makes little difference. I know that the K2 is basically a 10 watt rig and I get more on some bands, but the upper bands do not achieve this. When using the K2 with my KW1000 Linear Amplifier a watt or two makes a difference. 80 Meters = 13.0 watts out 40 Meters = 10.0 watts out 30 Meters = 12.0 watts out 20 Meters = 11.0 watts out 15 Meters = 8.0 watts out 12 Meters = 9.5 watts out 10 Meters =7.0 watts out Thanks in advance for your advice - Larry (G0IKE) ___ 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
