Re: [Elecraft] P3 question
On 19 Feb 2015, at 15:02, Phil Anderson aldenmcduf...@sunflower.com wrote: Use the third button down and the right side of the P3 front panel - called SPAN and widen what you are looking at. You can go as wide as 200 kHz. That should do it. I always use the P3 in Tracking mode, and normally my SPAN is set to 11, which gives me a display of + or - 5.2 kHz on either side of the main VFO frequency. This works for most pileups (on CW, where I usually am) except for some of the recent DXpeditions (K1N, TI9/3Z9DX) that seem to like large splits. I have my normal SPAN assigned to FN1 on the P3, so I can return to it easily. For the wider SPAN requirements, I have FN2 set to SPAN 20 kHz (+ or - 10) and FN3 set to SPAN 32 kHz (+ or - 16). I can quickly move to the bandwidth I need using this method. Hope this helps. 73, John K8AJS jebas...@fastmail.fm __ 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
Re: [Elecraft] K3: best roofing filter on RTTY
On 15 Feb 2015, at 22:02, Dick via Elecraft elecraft@mailman.qth.net wrote: Perhaps there is a receiver setting change I can make to the K3 that will improve RTTY decoding when using the 250hz roofer? I've tried various shift settings when the 250hz roofer is engaged and sometimes it improves RTTY reception, but not consistantly. Perhaps there's a setting change I can make to MMTTY? I'm using the MMTTY engine with WriteLog for contesting, and I find the 400Hz roofing filter, used together with the Dual Passband selection gives good RTTY reception along with good results dealing with QRM. Hope this helps. John K8AJS jebas...@fastmail.fm __ 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
Re: [Elecraft] K3 Beta 5r10 and LINK
On 15 Feb 2015, at 09:55, brian als...@nc.rr.com wrote: Question: does anybody really use XFIL? Yes. I would vote YES for keeping XFIL. 73, John K8AJS jebas...@fastmail.fm __ 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
Re: [Elecraft] PSK-D Feature request
I'm interested in learning how you explain to your software that it should listen for PSK and decode it while it's transmitting FSK. 73, John K8AJS jbast...@me.com On 01 Jan 2014, at 6:33 PM, Jim Miller j...@jtmiller.com wrote: While reading the manual to setup PSK using Data-A I now read that PSK-D is actually capable of being driven by FSK keying line already! Missed that one. Jim AB3CV (now RTFMing...) On Wed, Jan 1, 2014 at 11:30 AM, Jim Miller j...@jtmiller.com wrote: I'd like to see PSK-D be supported by the FSK keying line ala RTTY via FSK-D. __ 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] K3/KPA500/KAT500 SWR problem
On 29 Dec 2013, at 5:46 PM, Ray Coles raycole...@gmail.com wrote: I also note that when I start transmitting, power is always less than I have selected and it climbs steadily to the demanded value over time. I have set up ALC as documented. If I set power greater than 40W (this varies a little band to band) the power climbs untilBAM! The SWR of 1 to 1.4 suddenly shoots up into the Red with the KAT500 utility recording values of 5-25! I agree that first you should connect your output directly into a 50 ohm dummy load and see if you see the same symptoms or if everything looks normal. If it's normal there... Your symptoms of SWR jumping up as the power is increased seem very indicative of a bad coax shield connection on your RG58 or RG8 feedline. I would carefully inspect your PL-259s and any barrel connectors that may be involved in the feedline path to the antenna, for looseness in the shield connection to the PL-259. Probably best would be to make up a new coax feedline with new connectors and make sure the solder connections to the shield side are very solid. Hope this helps. 73, John K8AJS jbast...@me.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
[Elecraft] KPA500 affecting 160-meter reception
I’m having an issue with the KPA500 amp and my 160-meter Inverted L antenna; I wonder if anyone on the list has ever experienced something like this or has a suggestion where to look for the problem? My setup is a K3 transceiver, the KPA500 amp and a Ten-Tec 238C antenna tuner, connected to a collection of antennas, switched either in the tuner or using a couple of external coax switches (the tuner only has four outputs). One of the outputs is routed to the 160-meter Inverted L. The KPA500 is seeing about a 1.2:1 SWR to the Inverted L through the tuner. It loads well and shows no problems transmitting, either low power when disabled, or high power when the amp is enabled. The problem is, when I push the button to OPER on the amp, the received signal on 160 drops about 20dB (as evidenced by the signal level display on the P3). There’s no change in the loading, and the amp still puts out full power with no problem, but understandably this makes it much more difficult to hear the station I’m trying to work. All the other antenna selections and bands, using my quad or the G5RV work just fine and I don’t see anything like this happening. I’ve checked grounds throughout, including the connection to the radial system on the Inverted L and haven’t found anything visibly abnormal. I’ve also connected the Inverted L feedline directly to the KPA500, taking the tuner and the coax switches out of the circuit. In this configuration, the amp sees about a 1.7:1 SWR to the feedline. There is no change, I still get a huge drop in received signal strength when I switch in the KPA500. I would appreciate any ideas you may have about where I may have a problem. TIA. 73, John K8AJS jbast...@me.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] K3 Extention speaker
On 06 Sep 2013, at 11:05 AM, Bob Auiler bob.aui...@mvpcollaborative.com wrote: I will second that emotion. Bob Auiler | KW8U I'll also put in a vote for that. I won't speculate on the housing or engineering of it, but I would love to have a good pair of stereo speakers (I use split operation with the sub rx extensively) that would have good communications audio, allowing me to not have to use headphones all the time. I've tried different speakers with the K3, but nothing that I've tried really sounds good or works well. I'm sure the people who engineered the radio could give us the best match and the best performance. 73, John K8AJS jbast...@me.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] K3 For Sale
On 08 Aug 2013, at 7:11 AM, WP4O w...@tampabay.rr.com wrote: Subject: K3 For Sale corrected E mail addy The e-mail address at the end of this message is still not correct. [snip] Contact me off the list at w...@tampbay.rr.com 73, Ed WP4o For anyone interested in this offer, Ed's correct e-mail address is w...@tampabay.rr.com Hope this helps. 73, John K8AJS jbast...@me.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] KPA500 KAT500 in WPX
On 27 May 2013, at 7:53 AM, Ken K3IU kenk...@cox.net wrote: Just thought I'd pass this along in case others may have experienced something similar... Over the weekend in the WPX contest I noticed that I was occasionally being replied to as EA3IU rather than K3IU. After the first couple of times, I noticed that each time that it happened, I had just made a large frequency change on a band and the KAT500 had briefly reacted with a small change. Thinking about it, if the first element of the K ( _._ ) is being shortened by action of the KAT500, then what was being sent would certainly be interpreted as EA( . . _ ) rather than K. I'll do some testing with a separate receiver (my K2) and see if I can duplicate it. I'll also re-read the manual on the KAT500 to see if I can make it less sensitive to in-band freq changes. I know that there are changes in settings that can be made. 73, Ken K3IU What contest software were you using and how were you generating the CW? I noticed the effect you're talking about, running WriteLog software and using PC Generates for CW. The CW was very short and choppy, and you're right about the first part of the first character element being chopped off. The effect was constant and didn't seem to be related to any frequency changes. I worked around it for the contest by using my Idiom Press K3 electronic keyer to generate the CW instead of the computer. It slowed things down a lot, but the CW was good and I didn't have recognition problems. My solution to the problem is going to be to use an external keyer to generate the computer CW instead of the computer itself. In my case, I have a W5XD Multi-Keyer that I used with my Yaesu rigs before I changed to the K3 rig; I had taken it out of service, thinking I didn't need it since I'm no longer going to be running SO2R, but I guess I need it for the CW. And another thought, after your frequency change, is the KAT500 not changing until it sees some RF? It seems that when you make a large frequency change, the KAT500 should be following you and updating when you tune the radio, based on settings it has already determined, not waiting until you start to transmit to make the change. Hope this helps. 73, John K8AJS jbast...@me.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] KPA500 question about cooling
On 26 May 2013, at 4:47 PM, mcduf...@ag0n.net wrote: On Sun, 26 May 2013 16:40:48 -0400, Bill wrote: Is it necessary that the top of the amp be unblocked? I was thinking of the KAT500 being placed on top of the amp. Perhaps the other way around would be better? Any side clearances required? You'll find out when you build the KPA that the top needs to be kept clear. Air intake is at the top, and exhaust at the rear. It moves a lot of air when the fan hits high gear :) Others have put the tuner under the amp. It also helps to hold the tuner down when you hit a button. I'm more than likely going to do the same thing when I get mine. I thought that, too, so when I set up my K-Line I put the KAT500 under the KPA500 on the desk. Then I saw the setup at Dayton, where they had the KPA500 with the KAT500 on top. I asked the person at the booth and he told me that there is no problem running the amp with the tuner on top, that they are designed to have adequate cooling when installed in that position. Hope this helps. John K8AJS jbast...@me.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
