Re: [Elecraft] OT: Vertical antenna ground systems
Ralph Holland VK1BRH did a lot of very similar work and I think came to similar conclusions. David G3UNA - Original Message - From: Jim Brown [EMAIL PROTECTED] To: Elecraft List elecraft@mailman.qth.net Sent: Thursday, November 06, 2008 3:23 PM Subject: Re: [Elecraft] OT: Vertical antenna ground systems On Wed, 5 Nov 2008 18:39:03 -0800 (PST), George Badger wrote: The worst length for a raised radial is a resonant quarter wave. Rudy, N6LF, recently presented some excellent NEW work on this topic at Pacificon. A Power Point is on his website. It's worth chasing down. Google on N6LF to find it. 73, Jim K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Various Items For Sale
Hello All, I have several items looking for a new home: Bencher BY-2 paddles, very lightly used, $80 Elecraft EC-2, unused, $50 Elecraft K2 #3311 with KPA100, KNB2, KAF2, K160X, KSB2, cables and documents. Physically good shape. Never had it on SSB, updated to the latest rev both firmware and hardware $975 Heathkit HR-10, not working, filaments light, case is in good shape, the interior could use a cleaning. My best guess is that there is a bad tube in the HV chain. $50 Th6DXX, on the ground, good condition, pickup only. $200 All prices include CONUS shipping. I can send pictures tonight. I will ship internationally, but we'll need to check on costs/methods. Check or Money Order. 73, Julius Julius Fazekas N2WN Tennessee Contest Group TnQP http://www.tnqp.org/ Elecraft K2/100 #3311 Elecraft K2/100 #4455 Elecraft K3/100 #366 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: Keypad Band Switching - a simple request
The latest firmware providing keypad band switching is much welcomed. In concert with this, I would like to request Elecraft consider adding a CONFIG menu switch to protect memory entries from inadvertant overwriting. This would effectively disable the V M button while active. More than once I've mistakenly hit V M when I intended to recall a memory. Thanks Tom -- View this message in context: http://n2.nabble.com/K3%3A-Keypad-Band-Switching---a-simple-request-tp1469522p1469522.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Keypad Band Switching - a simple request
Or should V M require a loner press (2 seconds) ? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: TomB W1PKX [EMAIL PROTECTED] In concert with this, I would like to request Elecraft consider adding a CONFIG menu switch to protect memory entries from inadvertant overwriting. This would effectively disable the V M button while active. More than once I've mistakenly hit V M when I intended to recall a memory. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Keypad Band Switching - a simple request
Longer (must trype better)... Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Simon (HB9DRV) [EMAIL PROTECTED] Or should V M require a loner press (2 seconds) ? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 SSB Question
Completed K2 s/n 6424 a few months back, am thinking of adding a KSB2 adapter kit I own. I've seen several threads indicating that the SSB performance of the K2 with the adapter isn't very good. Would adding this capability be worthwhile, or is leaving the K2 as CW only a better option? 73, Curt KB5JO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB Question
I've had my K2 (5705) for a couple of years, with the KSB2. Alignment is a little tricky and it is important that it is done correctly, but I've had no problems with it. I've made a good many contacts (been using CW more) and have gotten some complements on the audio, so I think the bad reputation is a little unfair. Bernie W1AZ On Friday 07 November 2008, Curt wrote: Completed K2 s/n 6424 a few months back, am thinking of adding a KSB2 adapter kit I own. I've seen several threads indicating that the SSB performance of the K2 with the adapter isn't very good. Would adding this capability be worthwhile, or is leaving the K2 as CW only a better option? 73, Curt KB5JO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 with N1MM question
I enjoyed last weekend operating SSCW with my new K3/10 and N1MM. Both were a joy to use!! I have one curiosity however. I have the K3 setup for semi-QSK with a delay of 0.03 which works fine for me at about 25 wpm. However, the keying through N1MM operates as though PTT is enabled at the beginning of a transmission and disabled at the end. In other words, I hear no signals during the N1MM transmission. I'm keying through the RS232 port on the K3 from a standard serial port on my PC (same cable as used for the CAT from N1MM). I have PTT--KEY set to OFF-dtr, N1MM set for DTR-CW, RTS-Always off. Is there something I'm missing? 73, Randy, KS4L K3 #2006 K2 #337 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB Question
Curt, I do not know which threads you are referring to. The K2 with the KSB2 is quite good with excellent carrier suppression and will provide an audio passband consistent with the filter width you have installed on the KSB2 board. If you have the older 2.1 kHz filter width, the passband placement becomes critical and may require some experimenting. The 2.4 kHz width has been provided with the KSB2 for several years now and is not as critical. The 2.6 kHz bandwidth gives excellent audio with even less concern for the exact placement of the passband. No matter what filter width you have installed now, it is a simple matter of changing a few capacitors to alter the width - Elecraft provides a kit to do that if you wish. The downside of the KSB2 is that it has no anti-vox, and that fact makes the VOX operation 'touchy' for data modes - it is better to use PTT for data modes, and the KSB2 does have limited microphone gain - it works very well with electret element mics and with the higher output dynamic mics, but if you are planning to use the lower output Heil dynamic mics (HC-4/5 elements), then you may have to add a microphone preamp. Those are the pros and cons that I know about. 73, Don W3FPR Curt wrote: Completed K2 s/n 6424 a few months back, am thinking of adding a KSB2 adapter kit I own. I've seen several threads indicating that the SSB performance of the K2 with the adapter isn't very good. Would adding this capability be worthwhile, or is leaving the K2 as CW only a better option? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 with N1MM question
I was running QSK with N1MM. I usually set the delay to 0. With delay set to zero, I cannot tell a big differnce with QSK on or off (on the K3) when using N1MM to key the rig. David Wilburn NM4M http://www.nm4m.com Randy Moore wrote: I enjoyed last weekend operating SSCW with my new K3/10 and N1MM. Both were a joy to use!! I have one curiosity however. I have the K3 setup for semi-QSK with a delay of 0.03 which works fine for me at about 25 wpm. However, the keying through N1MM operates as though PTT is enabled at the beginning of a transmission and disabled at the end. In other words, I hear no signals during the N1MM transmission. I'm keying through the RS232 port on the K3 from a standard serial port on my PC (same cable as used for the CAT from N1MM). I have PTT--KEY set to OFF-dtr, N1MM set for DTR-CW, RTS-Always off. Is there something I'm missing? 73, Randy, KS4L K3 #2006 K2 #337 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
I had an RF feedback problem when transmitting in digimodes (TX audio via LINE IN). On some bands and at power levels above 20W, my TX audio was distorted. BTW, my previous TRX did not show this problem in the very same setup. Similar to MIC, also LINE IN has an RFC in its GND line (L5 on the KIO3 Audio IO board). After removing it and placing a jumper, my problem was gone! 73, Markus -- View this message in context: http://n2.nabble.com/K3-RF-Feedback-Problem-tp1442033p1469936.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 with N1MM question
Even if I go to QSK and/or set the delay to 0, I still hear the same behavior - like the PTT is enabled throughout the transmission and no signals are heard through the receiver. When sending with my paddles, I hear normal QSK behavior. I must have some configuration parameter set wrong in either the K3 or N1MM, or both! David Wilburn wrote: I was running QSK with N1MM. I usually set the delay to 0. With delay set to zero, I cannot tell a big differnce with QSK on or off (on the K3) when using N1MM to key the rig. David Wilburn NM4M http://www.nm4m.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 with N1MM question
Randy: In N1MM, go to the configurator, hardware tab, and click on the Set button for your K3. Make sure that the Radio PTT via command is NOT checked. 73, Ken K3IU ~~~ Randy Moore wrote: I enjoyed last weekend operating SSCW with my new K3/10 and N1MM. Both were a joy to use!! I have one curiosity however. I have the K3 setup for semi-QSK with a delay of 0.03 which works fine for me at about 25 wpm. However, the keying through N1MM operates as though PTT is enabled at the beginning of a transmission and disabled at the end. In other words, I hear no signals during the N1MM transmission. I'm keying through the RS232 port on the K3 from a standard serial port on my PC (same cable as used for the CAT from N1MM). I have PTT--KEY set to OFF-dtr, N1MM set for DTR-CW, RTS-Always off. Is there something I'm missing? 73, Randy, KS4L K3 #2006 K2 #337 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 with N1MM question
Make sure you have not checked Radio PTT via command in the N1MM set-up of the K3 COM port if you expect to be able to operate QSK or VOX (semi break-in). 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Randy Moore Sent: Friday, November 07, 2008 9:13 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 with N1MM question I enjoyed last weekend operating SSCW with my new K3/10 and N1MM. Both were a joy to use!! I have one curiosity however. I have the K3 setup for semi-QSK with a delay of 0.03 which works fine for me at about 25 wpm. However, the keying through N1MM operates as though PTT is enabled at the beginning of a transmission and disabled at the end. In other words, I hear no signals during the N1MM transmission. I'm keying through the RS232 port on the K3 from a standard serial port on my PC (same cable as used for the CAT from N1MM). I have PTT--KEY set to OFF-dtr, N1MM set for DTR-CW, RTS-Always off. Is there something I'm missing? 73, Randy, KS4L K3 #2006 K2 #337 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 with N1MM question
Randy, KS4L, wrote: However, the keying through N1MM operates as though PTT is enabled at the beginning of a transmission and disabled at the end. In other words, I hear no signals during the N1MM transmission. I'm keying through the RS232 port on the K3 from a standard serial port on my PC (same cable as used for the CAT from N1MM). I have PTT--KEY set to OFF-dtr, N1MM set for DTR-CW, RTS-Always off. Is there something I'm missing? By any chance do you have Radio PTT via Command checked in the N1MM Configurer for the K3 serial port? That would cause exactly the symptoms you observed. Also, in the main Configurer window, make sure that there is only one check mark under CW/Other (the one beside the K3 Radio port). 73, Rich VE3KI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
In fact, several return lines are affected by the same condition on the KIO3 PCB, including: L7 - Mic (J20); L5 - Line In (J21); L3- Line Out (J22); L8 - Phones (J19); and L15 - Speaker (J18). On the Main DSP PCB, L4 (affecting the front panel Mic jack) is bypassed with a jumper and removed. IMHO, the real solution for the KIO3 is to simply disconnect the existing ring return point on the jacks through a trace cut and bond the jack's ring terminal to the chassis with a short jumper. The rings should really be placed at chassis potential as close as possible to the jacks' ring. The RFCs could be left in place with this option since they would removed from the circuit anyway. An alternative option is to remove/bypass the affected RFCs on KIO3 and jumper the associated CN1-CN3 chip caps (e.g., jumper pins 4 and 5 on CN2 for rear panel mic shell grounding). Whatever you decide, it's important to refer to the schematic diagrams prior to making any K3 modification. Paul, W9AC - Original Message - From: hb9brj [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, November 07, 2008 9:46 AM Subject: Re: [Elecraft] K3 RF Feedback Problem I had an RF feedback problem when transmitting in digimodes (TX audio via LINE IN). On some bands and at power levels above 20W, my TX audio was distorted. BTW, my previous TRX did not show this problem in the very same setup. Similar to MIC, also LINE IN has an RFC in its GND line (L5 on the KIO3 Audio IO board). After removing it and placing a jumper, my problem was gone! 73, Markus -- View this message in context: http://n2.nabble.com/K3-RF-Feedback-Problem-tp1442033p1469936.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: Keypad Band Switching - a simple request
Please... nothing else that would make it take longer. !!! I've been lobbying for a setup option that will remap the single press funtion of M1 - M4 and REC to select a band position rather than doing the DVK/keyer memories. That way it's a single press and no way to overwrite anything. Before any cries from the gallery - the default setup from the factory would be the *existing* mapping of those buttons, allowing single press digital voice keying or cw memory keying. By overriding -factory configuration- in SETUP, the user would give up the use of the M1-M4 + REC (maybe they own an external keyer) in favor of using these buttons as single press band selection buttons. M1 would map to tunable band memory 1, corresponding for M2, M3, and M4, and REC would map to band memory 5. I'd like to see the TAP call up band, HOLD of the same key to perform AB. ;-) [Elecraft] K3: Keypad Band Switching - a simple request Simon (HB9DRV) simon at hb9drv.ch Fri Nov 7 08:28:27 EST 2008 Previous message: [Elecraft] K3: Keypad Band Switching - a simple request Next message: [Elecraft] K2 SSB Question Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Longer (must trype better)... Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Simon (HB9DRV) simon at hb9drv.ch Or should V M require a loner press (2 seconds) ? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 + Ameritron AL-811
K6LRG will be operating my K3 with an AL-811 provided by AF6JG for the SB SS. Has anyone used this combination that can provide some recomendations for setup and configuration or cautions that I should be aware of? Thanks, Jim -- View this message in context: http://n2.nabble.com/K3-%2B-Ameritron-AL-811-tp1470443p1470443.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Keypad Band Switching - a simple request
TomB W1PKX wrote: I would like to request Elecraft consider adding a CONFIG menu switch to protect memory entries from inadvertant overwriting. This would effectively disable the V M button while active. More than once I've mistakenly hit V M when I intended to recall a memory. This is a mistake that I've made a lot and it's annoying. It's either because I read Hebrew, which of course goes from right to left, or because I'm a programmer and automatically think of putting the contents of the thing on the right into the thing on the left! I've suggested to Wayne that Elecraft change the buttons to read STO and RCL or something. But in case they don't do this :-) here are some suggestions: 1) If you make this mistake, immediately hit M V which will cancel it without doing anything. 2) Notice the AF REC label under V M. REC means 'record'. 3) I did this: cut a small sticker -- I used a piece of a shiny red bumper sticker -- to fit over the face of the V M key. This has completely solved the problem -- my brain only sees M V so that's the one it chooses. But I have V M available immediately if I need it. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 with N1MM question
Thanks, Ken, and others. That was it! 73, Randy, KS4L Ken K3IU wrote: Randy: In N1MM, go to the configurator, hardware tab, and click on the Set button for your K3. Make sure that the Radio PTT via command is NOT checked. 73, Ken K3IU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 RF Feedback Problem
In fact, several return lines are affected by the same condition on the KIO3 PCB, including: L7 - Mic (J20); L5 - Line In (J21); L3- Line Out (J22); L8 - Phones (J19); and L15 - Speaker (J18). The same issue effects the RS-232 return (DB9, pin 5). In this case, raising the return makes RxD sensitive to RF and results in increased radiated/coupled digital noise from CAT polling. IMHO, the real solution for the KIO3 is to simply disconnect the existing ring return point on the jacks through a trace cut and bond the jack's ring terminal to the chassis with a short jumper. ANY impedance in a signal circuit that returns to ground inside the radio will result in placing any noise from the power supply return (in this case unbypassed RF on the power supply) in series with the signal input. In particular, the chokes in the mic circuits result in about 70 mV of RF in series with the approximately 50 mV from the typical dynamic mic. 73, ... Joe, W4TV -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Christensen Sent: Friday, November 07, 2008 10:31 AM To: hb9brj; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 RF Feedback Problem In fact, several return lines are affected by the same condition on the KIO3 PCB, including: L7 - Mic (J20); L5 - Line In (J21); L3- Line Out (J22); L8 - Phones (J19); and L15 - Speaker (J18). On the Main DSP PCB, L4 (affecting the front panel Mic jack) is bypassed with a jumper and removed. IMHO, the real solution for the KIO3 is to simply disconnect the existing ring return point on the jacks through a trace cut and bond the jack's ring terminal to the chassis with a short jumper. The rings should really be placed at chassis potential as close as possible to the jacks' ring. The RFCs could be left in place with this option since they would removed from the circuit anyway. An alternative option is to remove/bypass the affected RFCs on KIO3 and jumper the associated CN1-CN3 chip caps (e.g., jumper pins 4 and 5 on CN2 for rear panel mic shell grounding). Whatever you decide, it's important to refer to the schematic diagrams prior to making any K3 modification. Paul, W9AC - Original Message - From: hb9brj [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, November 07, 2008 9:46 AM Subject: Re: [Elecraft] K3 RF Feedback Problem I had an RF feedback problem when transmitting in digimodes (TX audio via LINE IN). On some bands and at power levels above 20W, my TX audio was distorted. BTW, my previous TRX did not show this problem in the very same setup. Similar to MIC, also LINE IN has an RFC in its GND line (L5 on the KIO3 Audio IO board). After removing it and placing a jumper, my problem was gone! 73, Markus -- View this message in context: http://n2.nabble.com/K3-RF-Feedback-Problem-tp1442033p1469936.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 + Ameritron AL-811
I have been operation the K3 with a AL-811H. No problems at all. Just connect the key out to the key in RCA cable. Keep the K3's power down around 70 - 80 watts. Dave N1IX - Original Message - From: Jim - W6VAR [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, November 07, 2008 11:25 AM Subject: [Elecraft] K3 + Ameritron AL-811 K6LRG will be operating my K3 with an AL-811 provided by AF6JG for the SB SS. Has anyone used this combination that can provide some recomendations for setup and configuration or cautions that I should be aware of? Thanks, Jim -- View this message in context: http://n2.nabble.com/K3-%2B-Ameritron-AL-811-tp1470443p1470443.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB Question
I used and did some testing with original KSB2 and QRP mode. The SSB signal is readable and useful although neither contest nor HiFi quality. While it does not have RF processing, it has some compression to a degree that outboard speech processors do not help any more. The narrow signal may be an advantage if running QRP where readability is more important than fidelity. I used K2 in my home country, SP, using a 60 ft long wire at 20ft with 2 15ft radials, all directly attached to KAT2. On 80m, I worked many of my old buddies within a 250 miles radius, and nobody had any trouble copying. A feat with a 4 lb self contained radio (powered by 2 x 11V/1.5AH LI-Ion batteries)+ 1 lb bag of accessories. Ignacy, NO9E -- View this message in context: http://n2.nabble.com/K2-SSB-Question-tp1469548p1470600.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: LDG AT-200 Pro going to eBay
I have a -NEW- LDG AT-200 Pro antenna tuner that will go on eBay if not sold here. Bought it to tune a 75' insulated tower on 80/160M, which it does easily, but the need to provide 12VDC to the tower's base makes it impractical to do ... in my situation, anyway. (Tested it with a L O N G extension cord) (;-) Cost $230 ... will deliver via Priority Mail within US for $200.00 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] [K3] Negative ALC Mod
Is this mod only a customer mod? Or is this mod included in recent production? If it is part of recent production, does any know about when it became part of the standard production? Thanks Bob Serwy - N9RS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] switch tone volume
My switch tones are covered up by the audio. Is there a way to increase the volume? Howard..K2HK HK___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] switch tone volume
The tone level is controlled by the Monitor level. 73, Ken K3IU Howard Klein wrote: My switch tones are covered up by the audio. Is there a way to increase the volume? Howard..K2HK */HK/* ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
L5 - Line In (J21); L3- Line Out (J22); These are transformer isolated and not returned to frame or chassis ground specifically to avoid ground loop problems. The inductors are there to help keep RF out. These commons are notational - they are not common with anything. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 vs. HPSDR Mercury receiver
Members of the RSGB may wish to sneak a preview of the December RadCom article on SDR where the authors compare a K3 with a HPSDR Mercury receiver and explain why the SDR sounds better than the K3 (noise through a crystal filter causing phase changes). http://www.rsgb.org/membersonly/radcom/techfeatures/sdr_1208.pdf Before you ask, I will not pass the article to non members as it is copyright material. 73 Dave, G4AON K3/100 #80 and Perseus SDR. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] PF-RX EQ setting on K3
For CW reception of weak 160m DX, I recently tried tweaking up the RX EQ so that the sidetone frequency is enhanced and other frequencies are attenuated. I think this works quite well as a primitive extra audio filter. While the settings are great for CW, they are no good (obviously) for speech. Does anyone know if such a home brew AF filter CW response curve setting could be stored using say PF1 button, and then be reset to a flat response using say PF2? Otherwise it gets fiddly and time-consuming to keep tweaking each of the eight filter frequencies. This would be handy 73 Geoff G3XGC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
I have just received my K3 factory built and been playing with it for the last two days. I immediately discovered RF feedback problem which was cured by connecting pin 7 of the mike plug to the shell of the connector. I do plan to use rear mike and audio connectors as well but I am getting a bit confused with what exactly needs to be modified to avoid RF feedback. I would really like to get inside only once. May be Elecraft can officially issue recommendations for the mod regarding this RF feedback issue. Hopefully the one that would require minimum surgery on the radio. 73, Igor UA9CDC L5 - Line In (J21); L3- Line Out (J22); These are transformer isolated and not returned to frame or chassis ground specifically to avoid ground loop problems. The inductors are there to help keep RF out. These commons are notational - they are not common with anything. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
L5 - Line In (J21); L3- Line Out (J22); These are transformer isolated and not returned to frame or chassis ground specifically to avoid ground loop problems. Lyle, That's right. I should have looked off page on the preceding schematic to see that -- although the issue still stands on the other stated jacks. What's odd is that his RFI problem went away with the removal of L5. I would not have expected that result on the transformer output although one line is shared commonly between two transformers. Paul, W9AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
FW: [Elecraft] K3 + Ameritron AL-811
-Original Message- I received a used 811-H that I had won on eBay Friday night and used on Saturday in the ARRL-SS-CW. I got the five states I needed for WAS CW with no problem. With 500 to 600 watts output I got answers to my calls immediately. Key out and no alc. Keep the drive down, 50 to 63 watts. I was using two resonant antennas, 40 and 20 meters so tuning was not an issue. Now that the contest is over I have been trying to use the amp with my legal limit MFJ 989D tuner for the non-resonant bands. So far the internal K3 ATU has easily found 1 to 1 matches for all bands from 80 on up. The MFJ tuner and amp are having a harder time on 80. Perhaps what I am learning is how inefficient the matches are on some bands. Anyway, the amp is great for the price! The only caveat is you have to manually switch antennas and bands and settings!! Jack, AE6GC -Original Message- ORIGINAL MESSAGE*** K6LRG will be operating my K3 with an AL-811 provided by AF6JG for the SB SS. Has anyone used this combination that can provide some recomendations for setup and configuration or cautions that I should be aware of? Thanks, Jim *** ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] PF-RX EQ setting on K3
In fact digi setting can also be different. May be saving EQ settings along with other settings as profile in M1-M4 would be handy. Rec button could be used for resetting to default. 73, Igor UA9CDC For CW reception of weak 160m DX, I recently tried tweaking up the RX EQ so that the sidetone frequency is enhanced and other frequencies are attenuated. I think this works quite well as a primitive extra audio filter. While the settings are great for CW, they are no good (obviously) for speech. Does anyone know if such a home brew AF filter CW response curve setting could be stored using say PF1 button, and then be reset to a flat response using say PF2? Otherwise it gets fiddly and time-consuming to keep tweaking each of the eight filter frequencies. This would be handy 73 Geoff G3XGC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 vs. HPSDR Mercury receiver
One way to get better-sounding audio, both on transmit and receive, is to use a wider-bandwidth crystal filter and let the DSP do most of the filtering. Because the digital filter is linear-phase it will sound much more natural than an analog non-linear-phase filter. That's why I leave ESSB enabled all the time on transmit, with the bandwidth set for minimum. Al N1AL On Fri, 2008-11-07 at 10:55, Dave G4AON wrote: Members of the RSGB may wish to sneak a preview of the December RadCom article on SDR where the authors compare a K3 with a HPSDR Mercury receiver and explain why the SDR sounds better than the K3 (noise through a crystal filter causing phase changes). http://www.rsgb.org/membersonly/radcom/techfeatures/sdr_1208.pdf Before you ask, I will not pass the article to non members as it is copyright material. 73 Dave, G4AON K3/100 #80 and Perseus SDR. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 N1MM and the second Band Map
Guys, I can't find any where on the reflector the info I need so here is my problem. I'm using N1MM and I'm trying to get the second band map to work and I can't seem to get it going. The second band map is present but does not display VFO-B frequency. N1MM is connected via MicroHam USB to serial converter. I do have a second RX in the K3. Regards, Berni G0IDA -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 vs. HPSDR Mercury receiver
On Fri, 2008-11-07 at 13:44, Julian, G4ILO wrote: If crystal filters distort the phase enough to make an audible difference on speech how the heck do we ever manage to receive PSK through them? Most of the phase distortion tends to occur at the band edges. As long as the PSK signal is significantly narrower than the crystal filter, distortion is minimized. Al N1AL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 vs. HPSDR Mercury receiver
If crystal filters distort the phase enough to make an audible difference on speech how the heck do we ever manage to receive PSK through them? The phase distortion is most pronounced near the corner frequency of the crystal filter. PSK, at least PSK31, is a very narrow mode and the chang ein delay (phase) through the filter over such a narrow bandwidth is usually minor, as long as you don't operate at a corners. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Keypad Band Switching - a simple request
Longer (must trype better)... Don't worry about spelling. Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe -- View this message in context: http://n2.nabble.com/K3%3A-Keypad-Band-Switching---a-simple-request-tp1470398p1472201.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft Accessories for Sale
I have the following for sale (prices include Priority Mail): KBF3 (General Coverage module) --- $110 1.8 khz filter --- $110 6.0 khz filter --- $110 Jim K4JAF 850-527-0267___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 TX equalizer messes up PSK
On Thu, 6 Nov 2008 01:05:51 -0800 (PST), Julian, G4ILO wrote: It might actually be more useful if the equalizer was bypassed when LINE IN is used, rather than by mode. That's a very BAD idea. Equalization often needs to be applied to Line In audio, both for playback of voice messages and to reduce the effect of hum pickup in the Line In Xfmr. It WOULD, however, be good to have EQ programmable by mode. 73, Jim Brown K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] No On/Off for COMP EQ?
As far as I can tell, there appears to be no ON/OFF function (button, menu, etc.) for the compression and equalization on the K3 other than returning the respective controls to zero settings. Is that true?. 73, Barry, K6RM___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Breathless with Anticipation
Oh, Happy Dance. Oh, Happy Dance. A Katie-Gram for me!!! Cheers, Colin - AC0S___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] Switch Tone Volume
I would like to know how the MONitor level is used to change the switch tone volume... Go to CW mode, press the CMP|PWR|MON knob until MON is displayed in VFO B and adjust the level. Switch tones will be at that level. 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] [K3] CW monitor tone adjustment presents difficulty
I've been using some stereo speakers that require a high volume setting, which means turning up my sidetone a lot higher than I would like for phones. This causes a problem when I switch from one to the other. I start keying and it's either way too loud or I can barely hear myself sending. This would be easy to deal with if the monitor adjustment didn't furnish a constant CW tone that mutes the audio and makes it impossible to change while using the radio. I'd like to be able to turn that tone off. I could either judge by the numbers on the display or listen to it as I'm keying, but the way it is now if I have it wrong I can neither send nor receive while I'm adjusting it. Another solution would be a selectable audio gain change when phones are plugged in, but I'd be happy twiddling knobs as needed. 73 and thanks for listening, Carl, WS7L K3 #486 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
