Re: [Elecraft] Batteries and transmitters on aircraft
If transmitters are not allowed then arrest everyone carrying a cellphone or laptop with wifi. Batteries? ditto. Those devices don't work very well without a battery. Loose battery might have a question asked. There are sealed batteries that have certification for air travel, but I suspect this is not really a problem. I have carried a ham radio in carry-on many times with no problems (US flights). Cannot comment on international flights. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ 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 CW filter choices
I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op - mostly ragchews, but occasional DX, QRP and QRQ. I wanted each filter to have a (more or less) dedicated purpose. The thinking was: - 2.7k for listening in the background, tuning around, before a QSO - 400 Hz when engaged in QSO. Wide enough for a little elbow room or when someone's slightly off freq - 200 Hz when things hit the fan. So far I don't find it too narrow. I chose the 200 over the 250 because I thought the 250 would be too close to the 400. Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had reservations about switching to 200/400/2.7k. I was very tempted to start with the 250 for that reason. In the end I went for the 200 because when things hit the fan, you need narrow. I was also concerned that the 200 might be too hard on the ears, as even some 250 filters have been in my experience. I don't find this problem at all with the 200. No fatigue. In reality, this trio has worked out perfectly (for my style of operating). I find it highly flexible, yet not so much that I'm wondering which filter to use for a given condition. After using this trio now for a couple years, I doubt I'd ever change it for CW use. Hope this helps. --Andrew, NV1B .. On Fri, Feb 3, 2012 at 10:17 PM, Robert G. Strickland rc...@verizon.netwrote: Well, I'm in for a K3, and I need to pick some CW filters. I've read all the threads, checked the graphs, and now would appreciate some experiential reports/advice. I operate almost exclusively CW, mostly chasing DX, contests, and some occasional rag chewing. SSB only if no other choice/challenge. What have folks been using for (1) brick-wall protection under demanding CW conditions, and (2) looking around and casual chatting? Data modes aren't a consideration at this point. Thanks much in advance. ...robert -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ 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 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 CW filter choices
As you say your are a casual CW operator. Perhaps some feedback from a nearly 100% CW operator of 50+ years would be useful too. 1) Tuning 400 Hz 2) When things get tough 200 or 250 Hz. The utility of the 200 Hz signal has been especially good for pulling out really weak ones on 15-6M. 3) Never anything wider then the above. Not interested in unwanted AGC activation for out of within passband, but nowhere near the listening frequency, signals. With the increased solar flux, many bands are pretty crowded and signals are strong. I do a lot of SP operations and one wants that to be single signal type of operation. Fooling around with filter width in these days of instant packet pileups isn't what I want to be doing. The other thing that helps, even though those with hearing aids may not be able to do it, is earphones. At my age the presence of external noise sources interferes with my ability to focus and copy CW. Earphones eliminate much of that. I suspect the same is true for SSB. In the older days the narrower filters tended to ring. That annoying ringing seems to have disappeared for this generation of filters/dsp. 73 de Brian/K3KO On 2/4/2012 13:12, Andrew Moore wrote: I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op - mostly ragchews, but occasional DX, QRP and QRQ. I wanted each filter to have a (more or less) dedicated purpose. The thinking was: - 2.7k for listening in the background, tuning around, before a QSO - 400 Hz when engaged in QSO. Wide enough for a little elbow room or when someone's slightly off freq - 200 Hz when things hit the fan. So far I don't find it too narrow. I chose the 200 over the 250 because I thought the 250 would be too close to the 400. Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had reservations about switching to 200/400/2.7k. I was very tempted to start with the 250 for that reason. In the end I went for the 200 because when things hit the fan, you need narrow. I was also concerned that the 200 might be too hard on the ears, as even some 250 filters have been in my experience. I don't find this problem at all with the 200. No fatigue. In reality, this trio has worked out perfectly (for my style of operating). I find it highly flexible, yet not so much that I'm wondering which filter to use for a given condition. After using this trio now for a couple years, I doubt I'd ever change it for CW use. Hope this helps. --Andrew, NV1B .. On Fri, Feb 3, 2012 at 10:17 PM, Robert G. Stricklandrc...@verizon.netwrote: Well, I'm in for a K3, and I need to pick some CW filters. I've read all the threads, checked the graphs, and now would appreciate some experiential reports/advice. I operate almost exclusively CW, mostly chasing DX, contests, and some occasional rag chewing. SSB only if no other choice/challenge. What have folks been using for (1) brick-wall protection under demanding CW conditions, and (2) looking around and casual chatting? Data modes aren't a consideration at this point. Thanks much in advance. ...robert -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ 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 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 __ 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] RF on power to K3 question
Dear Group, I have determined that the majority of my RF shack problems were related to RF on the power lead to the K3. Winding 7 turns thru a 1 clamp on #31 ferrite has cured the symptoms. With this choke in place everything is even happy on 160m. So let me explain how I power the equipment and then ask about putting a CAP across the power. The radio and SGC power cube amp are powered by 5 batteries connected in parallel. I use a very small battery tender connected at all times to keep the batteries at a full charge.When using the amp I also float a battery charger set to its mid range position with a max of 15 amps of charge to help maintain the system. From this perspective it works real well for powering the system. But I wanted to be sure that everyone understands how I power the system as I get to my questions below. Plus there is the normal AC stuff like the PC and so on. All equipment is grounded to a single point ground on one of the negative posts of a battery. So now to the RF problem. If you have followed earlier posts I have been chasing RF in my shack for quite awhile and finally started playing around with a clamp on meter and that is what tipped me off to the power feed of the K3. With the power feed determined as a problem (there still could be more). One of the tests I did was to remove all of the chargers and disconnect all the AC equipment and connect the amp output directly to the dummy load. RF was still present even after I attempted to remove all influences to verify if something was putting this on the power leads. So now I believe it is there natively when in TX and is not from a charger or PC or other antenna. Based on my reading about chokes, I put 7 wraps in the 1 big snap on ferrite. This killed the RF and like I stated in the opening paragraph with everything reconnected again the system is now happy at 160m. It now actually works real well. In discussing what I found with others, I have learned that batteries are not filters and all the HF energy goes right thru them. Recommendations have been made to put a ceramic capacitor across the batteries to filter the HF out. I also have been cautioned that there may be a problem with a choke on the power feed to the K3 that could put a power spike on the feed line that could do damage when turning the radio on and off. So here are the questions. Can the choke cause a problem with power spikes that could damage the K3. Should a CAP be placed across the batteries to filter out the HF. If yes how do I determine what size. Also if yes for the CAP will this improve battery life. Also if yes could the CAP have influence that could negatively effect my use of chargers for floating power. Again as always, that in advance for your help from this great group. Cheers Don ~73 Don KD8NNU __ 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] WHAT GREAT SERVICE
Sent an email Wed evening to the Parts dept @ elecraft, had one of the original RF concentric knobs on my K3, # 758, May of 2008 finally split open...Received a email Thursday am that Elecraft would send me replacements, NO CHARGE. They were shipped USPS on Thursday and I checked the tracking # and they will arrive today, Saturday in Michigan, OUTSTANDING Service. Thanks to Lisa and the gang @ Elecraft. Show me any manufacturer that could duplicate that kind of service.. NF8J Paul __ 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] WHAT GREAT SERVICE
I had a similar experience a few months ago. They sent me free replacements for all six sets of knobs in the lower left-hand quadrant of the front panel. You think I would now buy from any other ham transceiver manufacturer/reseller/kit-maker (apart from Doug Hendricks)? Just waiting for the KX3 to start shipping... Cheers, Alan V31FA On 2/4/2012 9:51 AM, Paul VanOveren wrote: Sent an email Wed evening to the Parts dept @ elecraft, had one of the original RF concentric knobs on my K3, # 758, May of 2008 finally split open...Received a email Thursday am that Elecraft would send me replacements, NO CHARGE. They were shipped USPS on Thursday and I checked the tracking # and they will arrive today, Saturday in Michigan, OUTSTANDING Service. Thanks to Lisa and the gang @ Elecraft. Show me any manufacturer that could duplicate that kind of service.. NF8J Paul __ __ 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 CW filter choices
100% agree OZ1CCM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Alsop Sent: 4. februar 2012 14:32 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 CW filter choices As you say your are a casual CW operator. Perhaps some feedback from a nearly 100% CW operator of 50+ years would be useful too. 1) Tuning 400 Hz 2) When things get tough 200 or 250 Hz. The utility of the 200 Hz signal has been especially good for pulling out really weak ones on 15-6M. 3) Never anything wider then the above. Not interested in unwanted AGC activation for out of within passband, but nowhere near the listening frequency, signals. With the increased solar flux, many bands are pretty crowded and signals are strong. I do a lot of SP operations and one wants that to be single signal type of operation. Fooling around with filter width in these days of instant packet pileups isn't what I want to be doing. The other thing that helps, even though those with hearing aids may not be able to do it, is earphones. At my age the presence of external noise sources interferes with my ability to focus and copy CW. Earphones eliminate much of that. I suspect the same is true for SSB. In the older days the narrower filters tended to ring. That annoying ringing seems to have disappeared for this generation of filters/dsp. 73 de Brian/K3KO On 2/4/2012 13:12, Andrew Moore wrote: I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op - mostly ragchews, but occasional DX, QRP and QRQ. I wanted each filter to have a (more or less) dedicated purpose. The thinking was: - 2.7k for listening in the background, tuning around, before a QSO - 400 Hz when engaged in QSO. Wide enough for a little elbow room or when someone's slightly off freq - 200 Hz when things hit the fan. So far I don't find it too narrow. I chose the 200 over the 250 because I thought the 250 would be too close to the 400. Prior to the K3, for 20 years I used the 250/500/1.8k setup, so I had reservations about switching to 200/400/2.7k. I was very tempted to start with the 250 for that reason. In the end I went for the 200 because when things hit the fan, you need narrow. I was also concerned that the 200 might be too hard on the ears, as even some 250 filters have been in my experience. I don't find this problem at all with the 200. No fatigue. In reality, this trio has worked out perfectly (for my style of operating). I find it highly flexible, yet not so much that I'm wondering which filter to use for a given condition. After using this trio now for a couple years, I doubt I'd ever change it for CW use. Hope this helps. --Andrew, NV1B .. On Fri, Feb 3, 2012 at 10:17 PM, Robert G. Stricklandrc...@verizon.netwrote: Well, I'm in for a K3, and I need to pick some CW filters. I've read all the threads, checked the graphs, and now would appreciate some experiential reports/advice. I operate almost exclusively CW, mostly chasing DX, contests, and some occasional rag chewing. SSB only if no other choice/challenge. What have folks been using for (1) brick-wall protection under demanding CW conditions, and (2) looking around and casual chatting? Data modes aren't a consideration at this point. Thanks much in advance. ...robert -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ 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 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4786 - Release Date: 02/03/12 __ 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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This
[Elecraft] RE50B microphone connected to K3
Has anyone had experience in tying pin 3 to pin one in an XLR connector to enable the transition from a balanced microphone to the unbalanced input of the K3? In this regard I have used this arrangement to attach an Electrovoice RE50B to my K3 and, although I have made satisfactory contactswith this arrangement, I ask because many of you respondents appear experienced in audio and may have alternatives to making this interconnection. John Kountz, WO1S/T6EE 2 x K3s __ 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] RE50B microphone connected to K3
RE50b is a low z dynamic mic that is well suited to voice and is an excellent mic should work well for K3. To use this unbalanced you are correct to connect pin1 to pin3 (cold to ground) do not connect the XLR connector body to the ground it should be left floating. I have used many balanced dynamics in this way with many rigs without issue . David Moes VE3DVY www.Facebook.com/PTBOTheatreGuild www.Twitter.com/PTBOTheatre www.YouTube.com/PTBOTheatreGuild --- Original message --- Subject: [Elecraft] RE50B microphone connected to K3 From: John Kountz j...@t6ee.com To: elecraft@mailman.qth.net Date: Saturday, 04/02/2012 11:12 AM Has anyone had experience in tying pin 3 to pin one in an XLR connector to enable the transition from a balanced microphone to the unbalanced input of the K3? In this regard I have used this arrangement to attach an Electrovoice RE50B to my K3 and, although I have made satisfactory contactswith this arrangement, I ask because many of you respondents appear experienced in audio and may have alternatives to making this interconnection. John Kountz, WO1S/T6EE 2 x K3s __ 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 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] FW: K3: CW in SSB mode broken?
My solution for CW is by using a manual PTT on the sequencer when using CW mode sent by hand. This always on VHF or higher with transverters, preamps, ext TR relays and Tx amplifiers involved. When CW is generated by computer (keyboard) the sw I use has built-in TR delay in the PTT command. PTT is controlled by RTS and keying is via DTR. I have the same options selected for my digital sw. On HF I have none of these so sequencing is not engaged and CW keying is not an issue. I suppose some day there will be an HF amplifier for my K3 so not sure how one controls PTT with CW. I suppose the TX DLY setting handles normal situations for this. I guess one needs to check the transfer delay in amp or relays if relying on the delay function. If a long delay is needed QSK might not be usable. I don't use CW on HF enough for that to be a problem for me. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ 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 and Heil Pro Set Plus
The red cable on the foot switch is for keying an amplifier and plugs into the amps PTT or relay. This allows the foot switch to key the amp ahead of the K3 on transmit. Keeps you from talking into a dead amp. On Feb 4, 2012, at 1:21 AM, N6SC roned...@msn.com wrote: I have looked on the headset on the ear phones is just says Heil Pro-set Plus! The flyer that came with the phones stated it has the HC-4 and HC-5 elements. I won't set up bias, and will place it on the high setting. One problem I see with the foot switch is having to plug it in to the PTT plug at the rear. That spot is taken up by the Signatronics PTT line. Could this be used with a y adapter to bring in both lines into the same port? or, would do I need to disconnet the PTT line from the Signatronics, The FT foot switch has a cable for the PTT plug, and a red cable that is supposed to go where? Any help you can give is extremely appreciated. After I get this squared away, I want to get the digital program up and running with DSLab Suite using winwarbler. Ron roned...@msn.com N6SC -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-Heil-Pro-Set-Plus-tp7252264p7253558.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 __ 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] K3 CW filter advice request
Well, I'm in for a K3, and I need to pick some CW filters. I've read all the threads, checked the graphs, and now would appreciate some experiential reports/advice. I operate almost exclusively CW, mostly chasing DX, contests, and some occasional rag chewing. SSB only if no other choice/challenge. What have folks been using for (1) brick-wall protection under demanding CW conditions, and (2) looking around and casual chatting? Data modes aren't a consideration at this point. Thanks much in advance. ...robert -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ 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] RE50B microphone connected to K3
On 2/4/2012 8:42 AM, David Moes wrote: E50b is a low z dynamic mic that is well suited to voice and is an excellent mic should work well for K3. Yes. An RE11 or RE16 is even better, because they are directional and reduce background noise pickup (fans, room noise, etc.) To use this unbalanced you are correct to connect pin1 to pin3 (cold to ground) Yes, Pin 3 to Pin 1 is right, but Pin 1 is the SHIELD, not ground, and Pin One must go to the SHIELDING ENCLOSURE (the chassis) to provide shielding and prevent the Pin One Problem. The distinction between ground which some interpret (wrongly) as a connection to the EARTH, and a connection to the SHIELDING ENCLOSURE is important -- no connection to the EARTH is needed to prevent noise or RFI issues. do not connect the XLR connector body to the ground it should be left floating. Again, this word ground confuses the issue. Inside the microphone, there MUST be a connection between Pin One and the metal shell of the mic -- this provides shielding for the mic itself. AES Standards also call for a connection between Pine One and the shielding enclosure INSIDE EQUIPMENT, but require that there be NO connection between the cable shield and the cable shell. There are very important reasons for this that don't matter here. :) 73, Jim Brown K9YC __ 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 ALC Meter Reading
Issue has been resolved. After digging deeper into my settings I found that I had somehow turned the bias on. Upon turning this off and setting the mic gain to High I immediately had what appears to be normal ALC indication. I suspect this happens when you operate mostly CW and data modes... -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-ALC-Meter-Reading-tp7248383p7254506.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] Linux k3utility RTTY
Adrian, The Linux, Mac and Windows versions of the K3 Utility Terminal all work the same way. As Dick mentioned in his previous response to this same question, the K3 itself will not allow lock on indefinitely: I could remove the code that cuts off diddle upon running out of input buffer, **but the K3's MCU will time out the diddle after a few seconds anyway**, so it won't lock on for an indefinite period. I'm looking into other ways to do this, but there are a lot of things on my task list ahead of this. You might consider FLDigi for a more feature rich RTTY mode app. David, W4SMT --- On Sat, 2/4/12, Adrian vk4...@bigpond.com wrote: I'm not sure if I'm missing something in trying to qso with k3utility terminal in RTTY mode (K3 FSK-D). However I can send the cqdx macro tapping the macro then tapping transmit etc. I get a response, then type in the ops call etc, and tap transmit to get things going, however I cannot type at 45 bps and the tx stops before I'm done. This makes a mess of the qso bigtime. Why can't the tx be locked and still allow rx and tx auto on keyboard input such that I can key in my message without having to re-tap transmit? Adrian ... vk4tux __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
Now I'm really confused. I thought I had it straight in my head, after slogging through all the info in the ARRL posts, etc., that we would NOT be able to have more than one PSK (or CW) QSO going on in a given channel, because we are required to always put the one PSK or CW signal at the same offset within that channel. I remember being disappointed in the idea that we wouldn't be able to use a single channel or two as a virtual CW or PSK mini-band, thus making much more efficient use of the limited spectrum being made available to us. The conclusion I reached was that even if that would be the most efficient use of the spectrum, that it would likely drive the primary users nuts trying to figure out how to shut up a whole crowd of users when they wanted to use the channel, thus the reason for barring us from stuffing the channel with multiple narrow-band signals. Did I somehow misread the whole thing? Thanks, -- Dave, N8SBE On 2/3/2012 10:58 PM, Sandy wrote: Firstly, if you read the Summary of the RO, it specifically states that for FSK emission designator is: 60H0J2D. 60 Hz being the bandwidth of the PSK emissions. Under ideal conditions, I would suppose that about 1.5 khz of space would be usable at least with a normal SSB transceiver on PSK-31. If the tones are much below 0.5khz you run into some distortion that seems to prevail on some transceivers and cause spurious signals, ditto above 2 khz. No doubt some rigs might work OK, some might not. Still several simultaneous QSO's could be accommodated in say a 1.5 =2 khz bandwidth with no problem if there wasn't a Power hog trying to outdo everyone else on the channel. One MUST be a Good neighbor and not run excessive power (even under the 100w PEP ERP requirement) in order for everyone to have his QSO with adjoining stations operating. A normal RTTY station would be much broader than allowed by the emission designator. PSK-31 can be a very delightful and reliable mode but one Lid can wreck a whole band of PSK channels using 2 khz of band space. 97.307 specifically assigns the 60H0J2B bandwidth designator in the addition/revision rules in the Federal Register for part 97. So it seems that PSK-31 WOULD be able to use more than one QSO in the channel space allotted per channel as long as there wasn't any spurious crud outside or inside the assigned channel. Most of the waterfall displays have frequency calibrations which can be very close if one sets up his transceiver's frequency correctly. The space used by each user of PSK-31 is limited to what the emission designator specifies and not the 2.8 khz bandwidth as is specified for PACTOR data. Being much narrower than PACTOR several PSK-31 co-users should be possible per channel. For CW the RO also says the CW signal will be 1.5 Khz above the suppressed carrier frequency used by the USB mode and one would assume that it would have to be within + or - 75 Hz of that center frequency. This would pretty much limit each channel to one CW QSO per channel at any one time. (emission designator for CW is: 150HA1A) Just an observation. We will find out what happens when March 5th comes and the new emissions are tried out. There probably WILL be some growing pains and also newbies who don't understand the problems that will pop up in channelized spectrum space in ham radio. I'm looking forward to operating both CW (and PSK-31 eventually when I get my interface for the FT-990 xcvr built) It should be fun and very useful having these additions to just voice modes on 60 meters! 73, Sandy W5TVW -Original Message- From: Rick Bates Sent: Friday, February 03, 2012 9:14 PM To: 'Sandy' Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. Since PSK is usually sound card based, keeping everything within the required 2.8 KHz means there will be less space (than say 14.07 MHz) for shared channel use. The one caveat I see is if one uses the FSK (or PSK in a K3) mode of the radio. You have to know if it is displaying the suppressed carrier frequency OR is it displaying the MARK frequency and adjust accordingly? For CW, use the channel center frequency (up 1500 Hz from the suppressed carrier frequency). Comments? Rick WA6NHC -Original Message- From: Sandy Hey guys! I am planning on trying CW for the first time on 60 meters on the new channel 3 on 5358.5. Just hope the PACTOR stuff doesn't jump on that channel and claim it. It looks like there isn't ANY normal RTTY authorized, only PSK31. It would be hard to run normal RTTY with only a 60 Hz. bandwidth. 73, Sandy W5TVW - No virus found in this
Re: [Elecraft] RE50B microphone connected to K3
You want to keep pin one separate ... Connect pin 3 to the microphone return in the transceiver (pin 7 in Elecraft/Kenwood transceivers) Connect pin 1 to the chassis - the *SHELL* of the Foster mic plug in most transceiver. If you do it right, you will use shielded twisted pair cable - the twisted pair will provide a high degree of hum/RF rejection and the shield will be the icing on the cake as K9YC likes to point out. Even though the transceiver mic inputs are not truly balanced, treating them as pseudo-balanced inputs with twisted pair cable and an isolated shield goes a long way to keeping things clean. Manufacturers like Icom and Yaesu that use a coaxial lead (shield is the return) for their microphone and then float the mic return across the emitter resistor in the mic preamp or an RF choke are asking for RFI and hum problems. When some third parties then recommend connecting the mic return to the shell of the Foster mic plug with the cut-off component lead they compound the problems by upsetting the bias of the mic preamp! 73, ... Joe, W4TV On 2/4/2012 11:12 AM, John Kountz wrote: Has anyone had experience in tying pin 3 to pin one in an XLR connector to enable the transition from a balanced microphone to the unbalanced input of the K3? In this regard I have used this arrangement to attach an Electrovoice RE50B to my K3 and, although I have made satisfactory contactswith this arrangement, I ask because many of you respondents appear experienced in audio and may have alternatives to making this interconnection. John Kountz, WO1S/T6EE 2 x K3s __ 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 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] WTB K3 700hz Filter
I am looking for a K3 filter, 700hz. If anyone has one for sale please contact me off-list. Thanks! tu...@zoominternet.net 73 Keith N8CEP __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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] WHAT GREAT SERVICE
- Original Message - From: Paul VanOveren p...@nf8j.com To: elecraft reflector elecraft@mailman.qth.net Cc: Sent: Saturday, February 4, 2012 5:51 PM Subject: [Elecraft] WHAT GREAT SERVICE Sent an email Wed evening to the Parts dept @ elecraft, had one of the original RF concentric knobs on my K3, # 758, May of 2008 finally split open...Received a email Thursday am that Elecraft would send me replacements, NO CHARGE. They were shipped USPS on Thursday and I checked the tracking # and they will arrive today, Saturday in Michigan, OUTSTANDING Service. Thanks to Lisa and the gang @ Elecraft. Show me any manufacturer that could duplicate that kind of service.. NF8J Paul Same here. I had an FT847 which developed a fault in the RIT encoder and I asked the dealer for help. He refered me to the manufacturer who said they don't stock spares any more and that I should try Radiospares (!?). I tried to dismantle the front panel to remove the encoder, but I then broke a switch because I only found very limited instructions on how to do it, from a private website. In the end I gave up the FT847 to an old friend who deals in VHF mobile wireless, for him to repair and use. Its still broken. I then ordered the K3 with almost all extras and begun to assemble. I then realized the the K3EXREF board was missing and notified parts. It was sent to me very quickly by first class airmail, free. And I live almost half way around the globe!Eventually after completing the rig I found out that I had distorted audio mainly in CW mode. It turned out that there was something wrong with the speaker and again Elecraft sent me a new one free. Now I have a fully functional K3, awaiting my building of antennas to go on the air (I have moved to a new place)... I chose the K3 because as a kit I would learn all the details of construction and I would also have detailed assembly manuals so I could carry out repair and maintenance myself - it turned out I was quite right. Nice to feel vindicated. Thanks Elecraft! ___ Regards Neoklis - Ham Radio Call 5B4AZ QTH Locator KM64KR Website: http://www.qsl.net/5b4az/ __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
Fred, I am glad you stated the their RTTY = our PSK as I had realized that it wasn't RTTY as we know it but did not know it was PSK which I had assumed was allowed but with the question of one signal vs. many. I have the same questions and understandings, but... One item you didn't explicitly state is the dial frequency for CW operation. Let me make a statement and see if I understand the CW usage settings. For those NOT using a PC and digital display program, the dial would be set to the exact zero beat frequency of the station you ware responding to. Does the digital operator using a waterfall in CW mode (using HRD for example) set the received signal for 600 Hz (if that is what they have set in the radio for tone frequency) below (if in USB) in order to display the received signal at the plus 600 marker on the waterfall so they will transmit on his same frequency? Thanks es 73, de Jim KG0KP - Original Message - From: Fred Jensen k6...@foothill.net To: elecraft@mailman.qth.net Sent: Saturday, February 04, 2012 12:48 PM Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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 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] Fw: FCC 60m Band Change Rules PublishedInFederalRegister On 03 February 2012 - Correction
Sorry, I should have stated the CW signal you are receiving should be exactly ON the CENTER frequency of that channel as would be your transmitted signal. 73, de Jim KG0KP - Original Message - From: Jim Miller KG0KP jimmil...@stl-online.net To: k6...@foothill.net; elecraft@mailman.qth.net Sent: Saturday, February 04, 2012 1:41 PM Subject: Re: [Elecraft] FCC 60m Band Change Rules PublishedInFederalRegister On 03 February 2012 - Correction Fred, I am glad you stated the their RTTY = our PSK as I had realized that it wasn't RTTY as we know it but did not know it was PSK which I had assumed was allowed but with the question of one signal vs. many. I have the same questions and understandings, but... One item you didn't explicitly state is the dial frequency for CW operation. Let me make a statement and see if I understand the CW usage settings. For those NOT using a PC and digital display program, the dial would be set to the exact zero beat frequency of the station you ware responding to. Does the digital operator using a waterfall in CW mode (using HRD for example) set the received signal for 600 Hz (if that is what they have set in the radio for tone frequency) below (if in USB) in order to display the received signal at the plus 600 marker on the waterfall so they will transmit on his same frequency? Thanks es 73, de Jim KG0KP - Original Message - From: Fred Jensen k6...@foothill.net To: elecraft@mailman.qth.net Sent: Saturday, February 04, 2012 12:48 PM Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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 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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:
[Elecraft] K3 CW filters - sri abt double posting
-- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ 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] Fw: FCC 60m Band Change Rules PublishedInFederalRegister On 03 February 2012 - Correction
Jim, With Elecraft gear, set the VFO frequency to the center channel frequency for CW - the note you will hear from the other station should be at the setting of your sidetone pitch, and you will transmit at the channel center frequency. Yes, that is different than the suppressed carrier frequency that you must use in USB. CW in SSB is no help here either - the offset is not 1.5 kHz. 73, Don W3FPR On 2/4/2012 2:55 PM, Jim Miller KG0KP wrote: Sorry, I should have stated the CW signal you are receiving should be exactly ON the CENTER frequency of that channel as would be your transmitted signal. __ 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] [QRO] KPA500 variation of PA current band-by-band
I have recently assembled KPA500 serial number 641. When testing into a dummy load I find that I get a large variation in the DC power input when driving for 500W CW when I go from band to band. My worst band is 21MHz, where I get the highest current (lowest efficiency). The drive was adjusted to give 500W as indicated by the LCD display. Here are my results:- 1.8MHz DC current 10.0A fan hardly ever comes on 3.5MHz DC current 10.0A fan hardly ever comes on 7MHz 12.0A 10.1MHz12.4A 14MHz 14.3A 18.1MHz13.8A 21MHz 16.4A temperature rises rapidly and fan soon gets to full speed 24.9MHz13.5A 29.7MHz12.3A I have no results for 50MHz band as I have no transceiver covering that band. The readings drift as the heatsink (and the dummy load) warm up, and so I took readings quickly and allowed time for the heatsink to cool down between each band. I find that the KPA500 current sensor tends to give low readings. I would be interested in knowing how other amplifiers perform. David Park G3PSV __ 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] [QRO] KPA500 variation of PA current band-by-band
120 or 240 volts supply? On Feb 4, 2012, at 2:27 PM, david park contrast...@yahoo.com wrote: I have recently assembled KPA500 serial number 641. When testing into a dummy load I find that I get a large variation in the DC power input when driving for 500W CW when I go from band to band. My worst band is 21MHz, where I get the highest current (lowest efficiency). The drive was adjusted to give 500W as indicated by the LCD display. Here are my results:- 1.8MHz DC current 10.0Afan hardly ever comes on 3.5MHz DC current 10.0A fan hardly ever comes on 7MHz 12.0A 10.1MHz12.4A 14MHz 14.3A 18.1MHz13.8A 21MHz 16.4A temperature rises rapidly and fan soon gets to full speed 24.9MHz13.5A 29.7MHz12.3A I have no results for 50MHz band as I have no transceiver covering that band. The readings drift as the heatsink (and the dummy load) warm up, and so I took readings quickly and allowed time for the heatsink to cool down between each band. I find that the KPA500 current sensor tends to give low readings. I would be interested in knowing how other amplifiers perform. David Park G3PSV __ 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 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] FCC 60m Band Change Rules Published
Sandy wrote: I am planning on trying CW for the first time on 60 meters on the new channel 3 on 5358.5. Just hope the PACTOR stuff doesn't jump on that channel and claim it. That channel will likely become the favorite 60 meter frequency for the several military and vintage commercial radio USB nets because the carrier frequency 5357 kHz can be precisely entered on units that can be set only in 1 kHz increments. All other 60 meter USB channels require the ability to set the unit on 0.5 kHz increments. It looks like there isn't ANY normal RTTY authorized, only PSK31. It would be hard to run normal RTTY with only a 60 Hz. bandwidth. The rules mention only 60H0J2B and the discussion explains why, due to the J2B designation, it is considered RTTY. The 2K80J2D Data mode seems to refers to PACTOR-III. But isn't PACTOR-III a commercial and proprietary protocol? The FCC seems to include it for some future use with non-ham emergency networks. So, the authorized emissions seem pretty simple: 150HA1A CW Morse telegraphy, transmitter dial on the channel center frequency 2K80J3E USB phone, transmitter dial 1.5 kHz below the channel center frequency 60H0J2B RTTY (PSK-31 sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency 2K80J2D DATA (PACTOR-III sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? I wish conventional 170 Hz FSK RTTY had been authorized. I don't know why that would be worse than USB Phone or PACTOR-III. 73, Mike / KK5F __ 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] FCC 60m Band Change Rules Published
I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? In the discussion part of the Report and Order, the Commission made it clear that the PSK31 signal *must* be located on the channel center - there were not to be multiple signals per channel creating a mini PSK31 band. To comply with the Commission's intent, PSK31 should be operated with a 1500 Hz audio tone and the dial set 1.5 KHz below the channel center. If, as in the case of the K3, the PSK generator uses a subcarrier other than 1500 Hz, the dial frequency must be offset as needed to place the resulting PSK31 signal in the center of the assigned channel. 73, ... Joe, W4TV On 2/4/2012 3:32 PM, Mike Morrow wrote: Sandy wrote: I am planning on trying CW for the first time on 60 meters on the new channel 3 on 5358.5. Just hope the PACTOR stuff doesn't jump on that channel and claim it. That channel will likely become the favorite 60 meter frequency for the several military and vintage commercial radio USB nets because the carrier frequency 5357 kHz can be precisely entered on units that can be set only in 1 kHz increments. All other 60 meter USB channels require the ability to set the unit on 0.5 kHz increments. It looks like there isn't ANY normal RTTY authorized, only PSK31. It would be hard to run normal RTTY with only a 60 Hz. bandwidth. The rules mention only 60H0J2B and the discussion explains why, due to the J2B designation, it is considered RTTY. The 2K80J2D Data mode seems to refers to PACTOR-III. But isn't PACTOR-III a commercial and proprietary protocol? The FCC seems to include it for some future use with non-ham emergency networks. So, the authorized emissions seem pretty simple: 150HA1A CW Morse telegraphy, transmitter dial on the channel center frequency 2K80J3E USB phone, transmitter dial 1.5 kHz below the channel center frequency 60H0J2B RTTY (PSK-31 sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency 2K80J2D DATA (PACTOR-III sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? I wish conventional 170 Hz FSK RTTY had been authorized. I don't know why that would be worse than USB Phone or PACTOR-III. 73, Mike / KK5F __ 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 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] (no subject)
Juan You will also have to have a logging program running to poll the radio for frequency as the cable to the sd100 only has the receive line. This prevents collisions at the rs232 port. 73 Larry K1ZW Juan: The SteppIR picture here shows the connections: http://test.steppir.com/wp-content/uploads/2011/10/Y-Cable.pdf The KPA500 ports are not used for frequency information to the SteppIR. They're used for firmware load of the KPA500, KPA500 operation, and for frequency control with a Kenwood radio. 73 de Dick, K6KR __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
First off, I'm not a lawyer (and reading it provided a headache) but my interpretation is: If USB, select the suppressed carrier on your display (K3). If CW, go to the CHANNEL CENTER (up 1.5 KHz from suppressed carrier). If PSK (RTTY) or PACTOR III, set as per USB; the suppressed carrier. *BUT* make darned sure that your 'data' mode uses USB, not LSB and that your display shows suppressed carrier in USB. (i.e. when in FSK, my TS0940 displays the MARK frequency, which would be WRONG.) Answering a call on exactly the same frequency (in CW) is no guarantee of being correct (or legal). You are responsible for YOUR station only. Pactor III will consume most if not all of the bandwidth, one user per channel at a time. Now there is no (obvious) mention of what tones must be used for PSK; there is only mention of bandwidth (2.8 KHz from suppressed carrier on the UPPER side). So if one station were to use say something in the 500 Hz audio range while another were to use the 900 Hz range while a third used something in the 1200 Hz range; each of those bandwidths is WELL within the 2.8 KHz limit and *should* be legal while allowing three or more QSO's at the same time. If we are limited to using tones in the 1500 Hz range, it limits us to one station at a time. I didn't see such limitations. So since it is unclear, one must pay special attention to the bandwidth and audio frequencies used to ensure the signal is well within the channel limits. I would suspect that this will be hashed about by numerous folks for the next month and hopefully the FCC (informally) or ARRL will clarify before there is an issue. In the meantime, it's mostly a guessing game unless one understands the inverted reverse convoluted legalese used in the RO and resulting post in the Federal Register. In a perfect world, they'd say Here is the channel bandwidth, don't go beyond the edges. They didn't. This appears to be a grand experiment to see if we can share NTIA channels as well as offering a band between 80 and 40 meters for hurricane nets etc. I would suggest EXTREME caution for CW and data ops until this shakes out. If in doubt, don't. Rick wa6nhc Caveat: You're on your own. Period. ;-) -Original Message- From: Fred Jensen I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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
Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
See remarks included below... -Original Message- From: Dave New Sent: Saturday, February 04, 2012 11:55 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction Now I'm really confused. I thought I had it straight in my head, after slogging through all the info in the ARRL posts, etc., that we would NOT be able to have more than one PSK (or CW) QSO going on in a given channel, because we are required to always put the one PSK or CW signal at the same offset within that channel. NO! The PSK-31 signal is not required to stay on a specific frequency. It can be anywhere from the channel low frequency edge plus 100 Hz. up to the high frequency edge of the channel minus 100 Hz. (the confines of the 2.8 Khz channel width. (The channel is 3 khz wide, but there is a 100 Hz. Guard band at the top and bottom of the channel where no signal is emitted within.) On the other hand, the CW carrier frequency IS specified and being in the dead center of the channel and nowhere else! I remember being disappointed in the idea that we wouldn't be able to use a single channel or two as a virtual CW or PSK mini-band, thus making much more efficient use of the limited spectrum being made available to us. No, only the center frequency is available. One QSO per channel on CW, unless band conditions allow two pairs of stations to use the same frequency if they are not interfering with each other. The conclusion I reached was that even if that would be the most efficient use of the spectrum, that it would likely drive the primary users nuts trying to figure out how to shut up a whole crowd of users when they wanted to use the channel, thus the reason for barring us from stuffing the channel with multiple narrow-band signals. Did I somehow misread the whole thing? I see nothing in the info in the federal regiaster poosting about just a single user at once per channel. (Unless there is something there I missed!) 73, Sandy W5TVW : 2112/4788 - Release Date: 02/04/12 __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
All correct! It makes no difference what frequency you use on PSK! As long as the pair of tones are within the 2.8 Khz bandwidth of the Channel. There is a 100 Hz. guard band at the top and bottom edges of the Channel therefore the channel is only 2.8 Khz wide. Sandy W5TVW -Original Message- From: Fred Jensen Sent: Saturday, February 04, 2012 12:48 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2112/4788 - Release Date: 02/04/12 __ 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] RTTY on K3:Some questions
Hi, I just started using RTTY on the K3 and I have some questions that I hope someone can answer. I am using MMTTY and so far I have done the following: Set the radio to LSB and tuned into the signal. This works well, but I can't as yet figure out the frequency I am using especially if I use a spot in HRD. Data mode using AFSK-A mode. MMTTY seems to have a hard time to tune into the signals. One question about this is that wplit is not available in data mode. Does one use XIT instead? What about the FSK mode? Can you use this at the same time as HRD? I've gone through all of the on line guides I can but there isn't anything specific to the K3, or is there? Thanks -- View this message in context: http://elecraft.365791.n2.nabble.com/RTTY-on-K3-Some-questions-tp7254939p7254939.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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
On 2/4/2012 4:52 PM, Sandy wrote: All correct! It makes no difference what frequency you use on PSK! As long as the pair of tones are within the 2.8 Khz bandwidth of the Channel. WRONG! WRONG! WRONG! *Read* the FCC's Report Order - it is far more complete than the rules changes printed in the Federal Register. In the Report Order, the Commission *expressly prohibits* multiple users per channel in both RTTY and CW mode and directs that all signals will be centered in the respective channel. 73, ... Joe, W4TV On 2/4/2012 4:52 PM, Sandy wrote: All correct! It makes no difference what frequency you use on PSK! As long as the pair of tones are within the 2.8 Khz bandwidth of the Channel. There is a 100 Hz. guard band at the top and bottom edges of the Channel therefore the channel is only 2.8 Khz wide. Sandy W5TVW -Original Message- From: Fred Jensen Sent: Saturday, February 04, 2012 12:48 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction I think we all need to be careful. In the case of USB, we put our suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the authorized center frequency. The USB energy is above that and fills the 2.8 MHz channel, and it's one QSO per channel. For CW, we are told to put our keyed RF signal *on* the channel center frequency. There is only one center frequency per channel, so again, it's one QSO per channel. CW and USB seem pretty clear. The two data modes aren't quite as clear. Data, as the FCC uses it is a 2K80J2D emission which wiki.radioreference.com defines as HF PACTOR-III. Again, the emission fills the channel and it's one QSO per channel. The FCC's RTTY is a 60H0J2B emission which radioreference.com defines as PSK31, which precludes what we hams define as RTTY [45.5 baud 170 Hz shift FSK]. What's not clear is where to place your PSK31 signal. If your PSK31 signal extends upward from your dial frequency, then the RO seems to say you put your dial frequency 1.5 KHz below the channel center frequency. Where you actually transmit your PSK31 signal above that doesn't appear to be specified as long as it isn't 2.8 KHz or more, which is a little strange. Given the one QSO per channel philosophy for CW, Phone, and PACTOR-III, I would think that they would want my PSK31 signal centered in the channel and it would be one PSK31 QSO per channel like the other emissions. It just doesn't say that explicitly. There are several references in the RO to various techniques for minimizing interference to Federal users, and that seems to be a driving factor behind the one QSO per channel requirement. If it's just me and you conversing, there will be natural, frequent breaks for a primary user to claim the channel. If the 60H0J2B emission type is intended to allow multiple QSO's within the channel, as happens now above 14070, there will be no breaks and no way for a primary user to claim the channel. I don't have the answer, if someone does I'd really like to hear it, but do I think we all need to be careful as 5 March rolls around. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 2/3/2012 7:14 PM, Rick Bates wrote: Hi Sandy, If I read it correctly, we can use RTTY, Pactor and PSK modes (using USB if AFSK) and are limited to 2.8 KHz. It said we were NOT limited to those modes for data as it would suppress experimentation. __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2112/4788 - Release Date: 02/04/12 __ 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 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] Fw: FCC 60m Band Change Rules PublishedInFederalRegister (RE CW operation, PSK DON'TS)
BTW, most of the transceivers today offset the Receiver to a 600-700 Hz difference from the dial reading, other wise there would be no tone just silence received when the station that keys his rig up on the frequency your dial reads. Read your transceiver manual! This is sometimes a programmable offset, what ever is comfortable for the operator. Yes we are going to have to be careful to avoid any possible problems with Primary users of the channels we use! A further note on PSK-31. It is easy to generate spurious sidebands by over driving the transceiver from the PSK interface! Most people who do this, mostly newbies unknowingly, usually get unholy hell raised with them once or twice before they get things adjusted properly. Other PSK users will also raise hell with you for running TOO MUCH power! MOST IMPORTANT in PSK environments is use only as much as you need to maintain a QSO! Save yourself grief and the guy who might be next to you on the band from some by being very careful about this. It is REAL EASY to misadjust things so your signal isn't clean! Fortunately on 60 meters, your Linear Amplifier isn't allowed! 73 to all, Sandy W5TVW __ 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] Where does my K3 transmit?
I had forgotten that the K3 will transmit PSK31 and RTTY without an external computer. So, MODETX FREQ --- CW What the dial reads USB Supp Carrier at the dial, energy up LSB Supp Carrier at the dial, energy down RTTY??? PSK31 ??? I know on CW, if a station is transmitting on 14050.000 KHz and I set his tone in my cans to 570 Hz [my PITCH frequency], I will be transmitting exactly on his frequency and if you were listening, we'd sound the same to you, and my VFO will read 14.050.000 I don't know how the K3 brings that off, and really don't care, I just know it does. I've never used the paddle -- RTTY or PSK31. Any help on how that works? I didn't find it in KT7X's book, but I'm poking around in the MNQP and didn't spend a lot of time looking, the Minnesota Mobiles change counties fast :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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] FCC 60m Band Change Rules Published
I would presume that the reason they didn't include conventional RTTY is because of the excessive bandwidth. You can do the same thing with PSK-31 and MORE and with less power output. Add to that multiple simultaneous users of the same channel! It’s a natural for channelized bandplan channels. 73, Sandy W5TVW -Original Message- From: Mike Morrow Sent: Saturday, February 04, 2012 2:32 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published That channel will likely become the favorite 60 meter frequency for the several military and vintage commercial radio USB nets because the carrier frequency 5357 kHz can be precisely entered on units that can be set only in 1 kHz increments. All other 60 meter USB channels require the ability to set the unit on 0.5 kHz increments. It looks like there isn't ANY normal RTTY authorized, only PSK31. It would be hard to run normal RTTY with only a 60 Hz. bandwidth. The rules mention only 60H0J2B and the discussion explains why, due to the J2B designation, it is considered RTTY. The 2K80J2D Data mode seems to refers to PACTOR-III. But isn't PACTOR-III a commercial and proprietary protocol? The FCC seems to include it for some future use with non-ham emergency networks. So, the authorized emissions seem pretty simple: 150HA1A CW Morse telegraphy, transmitter dial on the channel center frequency 2K80J3E USB phone, transmitter dial 1.5 kHz below the channel center frequency 60H0J2B RTTY (PSK-31 sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency 2K80J2D DATA (PACTOR-III sent on USB phone), transmitter dial 1.5 kHz below the channel center frequency I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? I wish conventional 170 Hz FSK RTTY had been authorized. I don't know why that would be worse than USB Phone or PACTOR-III. 73, Mike / KK5F __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2112/4788 - Release Date: 02/04/12 __ 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] FCC 60m Band Change Rules Published
Joe, Did you see this indicated anywhere in the information that was in the Federal Register? I saw no indication that the PSK signal MUST be on some specific location within a channel. I do remember some random discussion about there being one user per channel at the same time, but this doesn't make sense for the efficient use of PSK-31. Being able to multiplex several QSO's at one time is a great advantage in a spectrum environment with little space per channel! If you see ANY reference to this in the Federal Register posting, let me know if I have overlooked it! 73, Sandy W5TVW -Original Message- From: Joe Subich, W4TV Sent: Saturday, February 04, 2012 2:45 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? In the discussion part of the Report and Order, the Commission made it clear that the PSK31 signal *must* be located on the channel center - there were not to be multiple signals per channel creating a mini PSK31 band. To comply with the Commission's intent, PSK31 should be operated with a 1500 Hz audio tone and the dial set 1.5 KHz below the channel center. If, as in the case of the K3, the PSK generator uses a subcarrier other than 1500 Hz, the dial frequency must be offset as needed to place the resulting PSK31 signal in the center of the assigned channel. 73, ... Joe, W4TV __ 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] [QRO] KPA500 variation of PA current band-by-band
Given that the poster is in the UK can probably assume 240Vac. Regards, Mike VP8NO On 04/02/2012 17:31, Jack Berry wrote: 120 or 240 volts supply? On Feb 4, 2012, at 2:27 PM, david parkcontrast...@yahoo.com wrote: I have recently assembled KPA500 serial number 641. When testing into a dummy load I find that I get a large variation in the DC power input when driving for 500W CW when I go from band to band. My worst band is 21MHz, where I get the highest current (lowest efficiency). The drive was adjusted to give 500W as indicated by the LCD display. Here are my results:- 1.8MHz DC current 10.0Afan hardly ever comes on 3.5MHz DC current 10.0A fan hardly ever comes on 7MHz 12.0A 10.1MHz12.4A 14MHz 14.3A 18.1MHz13.8A 21MHz 16.4A temperature rises rapidly and fan soon gets to full speed 24.9MHz13.5A 29.7MHz12.3A I have no results for 50MHz band as I have no transceiver covering that band. The readings drift as the heatsink (and the dummy load) warm up, and so I took readings quickly and allowed time for the heatsink to cool down between each band. I find that the KPA500 current sensor tends to give low readings. I would be interested in knowing how other amplifiers perform. David Park G3PSV __ 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 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 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
To all, I no longer have the RO that was issued a few months ago. Can't locate it. Joe you must be RIGHT! My humble apologies! I say its absolutely Stupid but I guess Stupid is as stupid was as that movie saying went! In the Federal Register posting, the new 97.303 (h) states: 60 m. band: (1) In the 5330.5-5406.4 kHz band (60m band), amateur stations may transmit only on the five center frequencies specified in the table below.. THIS will not allow multiple PSK QSO's within the channel! SORRY! MY OVERSIGHT AND MY MISTAKE! To me, it's DUMB...but it will be the law! My apologies to all for getting so excited about this. I guess they are worried about the newbies being able to carry more than one hand grenade at a time! Excuse my dust fellows! 73, Sandy W5TVW -Original Message- From: Joe Subich, W4TV Sent: Saturday, February 04, 2012 4:12 PM To: Sandy Cc: k6...@foothill.net ; elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction On 2/4/2012 4:52 PM, Sandy wrote: All correct! It makes no difference what frequency you use on PSK! As long as the pair of tones are within the 2.8 Khz bandwidth of the Channel. WRONG! WRONG! WRONG! __ 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] FCC 60m Band Change Rules Published
Did you see this indicated anywhere in the information that was in the Federal Register? Among other places it is in the ARRL's report dated 21 November 2011: the requirement is to transmit “only on the five center frequencies specified”. In simple terms, that means the RF emission must be ON the center frequency or equally spaced on either side not just somewhere in the channel. Further, in the FCC's Report and Order: http://transition.fcc.gov/Daily_Releases/Daily_Business/2011/db1118/FCC-11-171A1.pdf, paragraph 33 reads: The NPRM proposed that, for amateur stations transmitting CW emissions and PKS31 data emissions, the carrier frequency [note: FCC refers to the RF frequency of a CW or PSK31 signal as the carrier frequency - they are not referring to the dial or center of channel] shall be set to the center frequency. In paragraph 36 (ibid), the Commission writes: We ADOPT the center frequency requirement as proposed in the NPRM. Because the Amateur Service operates in the 60 meter band on a secondary basis, we pay particular attention to NTIA's position and the interests of Federal agencies that have primary status in the band. We conclude that continuing to restrict amateur stations to TRANSMITTING ON THE CENTER FREQUENCIES (emphasis added) will maintain the limited number of amateur operators using the five channels at any given time and provide certainty as to where such operators can be found. The Report and Order goes on to give the exact language that will be modified in Part 97 and I'm not going to duplicate all of it here. However, the Commission's own discussion of the matter is quite unambiguous - they want only one user at a time on each channel and they want all RF centered on the center of the channel - period. 73, ... Joe, W4TV On 2/4/2012 5:29 PM, Sandy wrote: Joe, Did you see this indicated anywhere in the information that was in the Federal Register? I saw no indication that the PSK signal MUST be on some specific location within a channel. I do remember some random discussion about there being one user per channel at the same time, but this doesn't make sense for the efficient use of PSK-31. Being able to multiplex several QSO's at one time is a great advantage in a spectrum environment with little space per channel! If you see ANY reference to this in the Federal Register posting, let me know if I have overlooked it! 73, Sandy W5TVW -Original Message- From: Joe Subich, W4TV Sent: Saturday, February 04, 2012 2:45 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published I guess the only thing not specified is where the PSK-31 signal shows up above the carrier frequency. Don't most PSK-31 transmissions use something around 1000 Hz? In the discussion part of the Report and Order, the Commission made it clear that the PSK31 signal *must* be located on the channel center - there were not to be multiple signals per channel creating a mini PSK31 band. To comply with the Commission's intent, PSK31 should be operated with a 1500 Hz audio tone and the dial set 1.5 KHz below the channel center. If, as in the case of the K3, the PSK generator uses a subcarrier other than 1500 Hz, the dial frequency must be offset as needed to place the resulting PSK31 signal in the center of the assigned channel. 73, ... Joe, W4TV __ 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] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction
Who is the referee determining the channel is empty? Propagation being what it is, two stations may have QSO's going on and none of the group of 4 thinks hears the other pair. Another observer might hear both QSO's at the same time. Thus a violation has occurred. There is no avoiding multiple QSO's/channel CW,PHONE or PSK. 73 de Brian/K3KO On 2/4/2012 22:52, Sandy wrote: To all, I no longer have the RO that was issued a few months ago. Can't locate it. Joe you must be RIGHT! My humble apologies! I say its absolutely Stupid but I guess Stupid is as stupid was as that movie saying went! In the Federal Register posting, the new 97.303 (h) states: 60 m. band: (1) In the 5330.5-5406.4 kHz band (60m band), amateur stations may transmit only on the five center frequencies specified in the table below.. THIS will not allow multiple PSK QSO's within the channel! SORRY! MY OVERSIGHT AND MY MISTAKE! To me, it's DUMB...but it will be the law! My apologies to all for getting so excited about this. I guess they are worried about the newbies being able to carry more than one hand grenade at a time! Excuse my dust fellows! 73, Sandy W5TVW -Original Message- From: Joe Subich, W4TV Sent: Saturday, February 04, 2012 4:12 PM To: Sandy Cc: k6...@foothill.net ; elecraft@mailman.qth.net Subject: Re: [Elecraft] FCC 60m Band Change Rules Published InFederalRegister On 03 February 2012 - Correction On 2/4/2012 4:52 PM, Sandy wrote: All correct! It makes no difference what frequency you use on PSK! As long as the pair of tones are within the 2.8 Khz bandwidth of the Channel. WRONG! WRONG! WRONG! __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4788 - Release Date: 02/04/12 - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2112/4788 - Release Date: 02/04/12 __ 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] Where does my K3 transmit?
Fred, PSK31 (or any other DATA A modes - the signal frequency is the carrier frequency (indicated by the VFO readout) plus (or minus) the audio frequency on the waterfall display. RTTY will be the same if you are using DATA A mode - if you are using AFSK mode, the displayed frequency will be the mark frequency - but that is not relevant to the 60 meter allocations, only Pactor III and PSK31 will be permitted after March 5, 2012. 73, Don W3FPR. On 2/4/2012 5:20 PM, Fred Jensen wrote: I had forgotten that the K3 will transmit PSK31 and RTTY without an external computer. So, MODETX FREQ --- CW What the dial reads USB Supp Carrier at the dial, energy up LSB Supp Carrier at the dial, energy down RTTY??? PSK31 ??? I know on CW, if a station is transmitting on 14050.000 KHz and I set his tone in my cans to 570 Hz [my PITCH frequency], I will be transmitting exactly on his frequency and if you were listening, we'd sound the same to you, and my VFO will read 14.050.000 I don't know how the K3 brings that off, and really don't care, I just know it does. I've never used the paddle -- RTTY or PSK31. Any help on how that works? I didn't find it in KT7X's book, but I'm poking around in the MNQP and didn't spend a lot of time looking, the Minnesota Mobiles change counties fast :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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 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] FCC 60m Band Change Rules Published
I would believe that the purpose of that requirement is that the primary user can take over the channel without undue effort - contact one user and cause that user to cease and desist will get the task done. 73, Don W3FPR On 2/4/2012 5:56 PM, Joe Subich, W4TV wrote: Did you see this indicated anywhere in the information that was in the Federal Register? Among other places it is in the ARRL's report dated 21 November 2011: the requirement is to transmit “only on the five center frequencies specified”. In simple terms, that means the RF emission must be ON the center frequency or equally spaced on either side not just somewhere in the channel. __ 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] Where does my K3 transmit?
If you are using the K3's CW to data (or data using the KY command), your frequency for PSK31 will be the dial frequency and for RTTY your mark will be the dial frequency. Not that it matters since traditional FSK RTTY is apparently not permitted on 60 meters but if one were using CW to DATA with the K3, it would be necessary to offset the dial frequency by 85 Hz to be properly centered in the channel. 73, ... Joe, W4TV On 2/4/2012 6:11 PM, Don Wilhelm wrote: Fred, PSK31 (or any other DATA A modes - the signal frequency is the carrier frequency (indicated by the VFO readout) plus (or minus) the audio frequency on the waterfall display. RTTY will be the same if you are using DATA A mode - if you are using AFSK mode, the displayed frequency will be the mark frequency - but that is not relevant to the 60 meter allocations, only Pactor III and PSK31 will be permitted after March 5, 2012. 73, Don W3FPR. On 2/4/2012 5:20 PM, Fred Jensen wrote: I had forgotten that the K3 will transmit PSK31 and RTTY without an external computer. So, MODETX FREQ --- CW What the dial reads USB Supp Carrier at the dial, energy up LSB Supp Carrier at the dial, energy down RTTY??? PSK31 ??? I know on CW, if a station is transmitting on 14050.000 KHz and I set his tone in my cans to 570 Hz [my PITCH frequency], I will be transmitting exactly on his frequency and if you were listening, we'd sound the same to you, and my VFO will read 14.050.000 I don't know how the K3 brings that off, and really don't care, I just know it does. I've never used the paddle -- RTTY or PSK31. Any help on how that works? I didn't find it in KT7X's book, but I'm poking around in the MNQP and didn't spend a lot of time looking, the Minnesota Mobiles change counties fast :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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 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 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] OT: Analog Sound
http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/ 52963362/1 http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/5 2963362/1 73, Dick - KA5KKT __ 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] OT: Analog Sound - Repost of Link
http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/ 52963362/1 http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/5 2963362/1 __ 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] OT: Analog Sound - Repost of Link
Hmm.I don't know why the link is broken and why it appears twice. The article is actually about developing digital technology that better replicates analog as I understand it. If interested, you can probably paste the link back together. 73, Dick - KA5KKT __ 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] FCC 60m Band Change Rules
Apologies to those who prefer top-posting- in this case, makes more sense to respond in line. Who is the referee determining the channel is empty? Propagation being what it is, two stations may have QSO's going on and none of the group , of 4 thinks hears the other pair. Another observer might hear both QSO's at the same time. Thus a violation has occurred. No violation occurs, as long as stations are using the appropriate, common frequency, only the potential for interference results- not a violation. There is no avoiding multiple QSO's/channel CW,PHONE or PSK. This is the same situation as on any amateur assigned frequency. 73 de Brian/K3KO 73, Bruce, N1RX __ 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 and Heil Pro Set Plus
So, then, this begs a question. I have a K3 with an Ameritron AL-811H. I key the K3 with a Heil foot switch connected to a Heil ProSet 5. When I tried keying my amp off the red cable on the foot switch, I didn't get any amp keying. When I connected an RCA phono cable between the K3's key out jack and the amp's relay, everything works fine and dandy. Is there some setting on the K3 I missed to allow the amp to key from the foot switch instead of from the rig's TX? Thanks and 73, Ian Kahn, KM4IK Roswell, GA km4ik@gmail.com K3 #281, P3 #688 On 2/4/2012 8:59 AM, Jack Berry wrote: The red cable on the foot switch is for keying an amplifier and plugs into the amps PTT or relay. This allows the foot switch to key the amp ahead of the K3 on transmit. Keeps you from talking into a dead amp. On Feb 4, 2012, at 1:21 AM, N6SCroned...@msn.com wrote: I have looked on the headset on the ear phones is just says Heil Pro-set Plus! The flyer that came with the phones stated it has the HC-4 and HC-5 elements. I won't set up bias, and will place it on the high setting. One problem I see with the foot switch is having to plug it in to the PTT plug at the rear. That spot is taken up by the Signatronics PTT line. Could this be used with a y adapter to bring in both lines into the same port? or, would do I need to disconnet the PTT line from the Signatronics, The FT foot switch has a cable for the PTT plug, and a red cable that is supposed to go where? Any help you can give is extremely appreciated. After I get this squared away, I want to get the digital program up and running with DSLab Suite using winwarbler. Ron roned...@msn.com N6SC -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-Heil-Pro-Set-Plus-tp7252264p7253558.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 __ 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 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 and Heil Pro Set Plus
On Sat, Feb 4, 2012 at 6:43 PM, Ian Kahn - Ham km4ik@gmail.com wrote: So, then, this begs a question. I have a K3 with an Ameritron AL-811H. I key the K3 with a Heil foot switch connected to a Heil ProSet 5. When I tried keying my amp off the red cable on the foot switch, I didn't get any amp keying. When I connected an RCA phono cable between the K3's key out jack and the amp's relay, everything works fine and dandy. Is there some setting on the K3 I missed to allow the amp to key from the foot switch instead of from the rig's TX? Huh? If you have the footswitch connected directly to the amp, how do you expect the K3 to have any control over it?? If your amp is really not keying (how are you determining this?), perhaps the red switch in your footswitch is broken... ~iain / N6ML On 2/4/2012 8:59 AM, Jack Berry wrote: The red cable on the foot switch is for keying an amplifier and plugs into the amps PTT or relay. This allows the foot switch to key the amp ahead of the K3 on transmit. Keeps you from talking into a dead amp. On Feb 4, 2012, at 1:21 AM, N6SCroned...@msn.com wrote: I have looked on the headset on the ear phones is just says Heil Pro-set Plus! The flyer that came with the phones stated it has the HC-4 and HC-5 elements. I won't set up bias, and will place it on the high setting. One problem I see with the foot switch is having to plug it in to the PTT plug at the rear. That spot is taken up by the Signatronics PTT line. Could this be used with a y adapter to bring in both lines into the same port? or, would do I need to disconnet the PTT line from the Signatronics, The FT foot switch has a cable for the PTT plug, and a red cable that is supposed to go where? Any help you can give is extremely appreciated. After I get this squared away, I want to get the digital program up and running with DSLab Suite using winwarbler. Ron roned...@msn.com N6SC -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-Heil-Pro-Set-Plus-tp7252264p7253558.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 __ 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 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 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] OT: Analog Sound
Thanks Dick: The digital revolution has brought us many fantastic capabilities, such as this machine I'm using to compose this reply or the K3 on my operating desk. But all engineering is a study in compromise. Everything comes at a cost. 73 Ron AC7AC -Original Message- http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/ 52963362/1 http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/5 2963362/1 73, Dick - KA5KKT __ 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] RF on power to K3 question
Hello Don: If you have cured your RF problems I'm not sure why you are asking your questions. In general adding a choke or capacitors to your power lead shouldn't hurt anything so give it a try. I will add detail to your questions below. BTW you should indicate how much power you are running and where your antenna is located relative to your K3. FT -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of gold...@charter.net Sent: Saturday, February 04, 2012 7:03 AM To: elecraft@mailman.qth.net Subject: [Elecraft] RF on power to K3 question Dear Group, I have determined that the majority of my RF shack problems were related to RF on the power lead to the K3. Winding 7 turns thru a 1 clamp on #31 ferrite has cured the symptoms. With this choke in place everything is even happy on 160m. So let me explain how I power the equipment and then ask about putting a CAP across the power. The radio and SGC power cube amp are powered by 5 batteries connected in parallel. I use a very small battery tender connected at all times to keep the batteries at a full charge.When using the amp I also float a battery charger set to its mid range position with a max of 15 amps of charge to help maintain the system. From this perspective it works real well for powering the system. But I wanted to be sure that everyone understands how I power the system as I get to my questions below. Plus there is the normal AC stuff like the PC and so on. All equipment is grounded to a single point ground on one of the negative posts of a battery. Do you have an earth ground? That is a ground rod. Depending on your setup that may or may not help. FT So now to the RF problem. If you have followed earlier posts I have been chasing RF in my shack for quite awhile and finally started playing around with a clamp on meter and that is what tipped me off to the power feed of the K3. With the power feed determined as a problem (there still could be more). One of the tests I did was to remove all of the chargers and disconnect all the AC equipment and connect the amp output directly to the dummy load. RF was still present even after I attempted to remove all influences to verify if something was putting this on the power leads. So now I believe it is there natively when in TX and is not from a charger or PC or other antenna. That suggests you may have other, as yet, undetected problems. FT Based on my reading about chokes, I put 7 wraps in the 1 big snap on ferrite. This killed the RF and like I stated in the opening paragraph with everything reconnected again the system is now happy at 160m. It now actually works real well. This is good. FT In discussing what I found with others, I have learned that batteries are not filters and all the HF energy goes right thru them. Recommendations have been made to put a ceramic capacitor across the batteries to filter the HF out. I also have been cautioned that there may be a problem with a choke on the power feed to the K3 that could put a power spike on the feed line that could do damage when turning the radio on and off. So here are the questions. Can the choke cause a problem with power spikes that could damage the K3. No. FT Should a CAP be placed across the batteries to filter out the HF. If yes how do I determine what size. Adding a cap won't hurt but it probably won't help much either. It might make your battery tender happier. It should be pointed out your K3 already has bypass caps across the input power leads. Take a look at the schematic. As for value it is not critical as long as it is a ceramic cap, 50V or greater. Since you are working 160M I would start with an 0.1uF. It is useful to have a combination of values. If I were working 40M I would add a 0.01uF and for 15M and above a 0.001uF. Put them all in parallel. FT Also if yes for the CAP will this improve battery life. No. FT Also if yes could the CAP have influence that could negatively effect my use of chargers for floating power. Again, no. FT Again as always, that in advance for your help from this great group. Cheers Don ~73 Don KD8NNU __ __ 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
