Re: [Elecraft] Headphone jack impedance
Most ear buds are fairly high impedance Kevin, the AF amp will drive them fine. Being moderately deaf [or worse if you ask my wife], I have also found that they vary greatly in sound pressure level. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 7/21/2018 7:39 PM, kevinr wrote: I am just starting my search for a good set of ear buds to replace those I'm using. Is there a standard headphone jack output impedance for the family of K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head phones or ear buds and want them to be the best match. I know I could find all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. Or is it more efficient? Kevin. KD5ONS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Headphone jack impedance
I find just the opposite. I can wear Etymotic ear buds for as long as I need to. Headphones, a few hours max. They stay in my ears and block out external noises more than enough. Although I will admit my operating position is likely much quieter than most. Amps are in the closet away from the desk and the radios don’t make any noise. Suum cuique! Ken K6MR From: elecraft-boun...@mailman.qth.net on behalf of Grant Youngman Sent: Saturday, July 21, 2018 9:55:11 PM To: kevinr Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Headphone jack impedance Earbuds drive me nuts. Great for hifi listening, but unpleasant for ham radio — especially for extended use over several hours. Impedance isn’t all that important. Most hifi type headsets or earbuds will work. My personal suggestion — if you want to move up a step from the common CM500 headset (which is ok and inexpensive, flimsy, and does not block out external noise in any useful way), would be to look at the new “portable” headsets from Arlan Communications — the RS10SL (headset only) or RS50SL (headset mic). Neither are expensive relative to “high end” earbuds (which are wasted in the usual ham application anyway). And if the new Arlan’s are even anywhere close to the RS60CF, they’ll be about as good as it gets. I use the RS60CF on both a K3 and KX3 at home and in the field Thinking about adding the 50SL for field use specifically, although the 60CF isn’t really that much to carry and fits in my equipment case. I’ve used very high end Shure earbuds in the past because I had them. They’re compact, and wonderful for a concerto or two, or an hour’s worth of listening. But for several hours of continuous ham radio use, really uncomfortable and bothersome. Grant NQ5T > On Jul 21, 2018, at 10:39 PM, kevinr wrote: > > I am just starting my search for a good set of ear buds to replace those I'm > using. Is there a standard headphone jack output impedance for the family of > K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head > phones or ear buds and want them to be the best match. I know I could find > all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. > Or is it more efficient? > >Kevin. KD5ONS > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoung...@gmail.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 Message delivered to k...@outlook.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Headphone jack impedance
Earbuds drive me nuts. Great for hifi listening, but unpleasant for ham radio — especially for extended use over several hours. Impedance isn’t all that important. Most hifi type headsets or earbuds will work. My personal suggestion — if you want to move up a step from the common CM500 headset (which is ok and inexpensive, flimsy, and does not block out external noise in any useful way), would be to look at the new “portable” headsets from Arlan Communications — the RS10SL (headset only) or RS50SL (headset mic). Neither are expensive relative to “high end” earbuds (which are wasted in the usual ham application anyway). And if the new Arlan’s are even anywhere close to the RS60CF, they’ll be about as good as it gets. I use the RS60CF on both a K3 and KX3 at home and in the field Thinking about adding the 50SL for field use specifically, although the 60CF isn’t really that much to carry and fits in my equipment case. I’ve used very high end Shure earbuds in the past because I had them. They’re compact, and wonderful for a concerto or two, or an hour’s worth of listening. But for several hours of continuous ham radio use, really uncomfortable and bothersome. Grant NQ5T > On Jul 21, 2018, at 10:39 PM, kevinr wrote: > > I am just starting my search for a good set of ear buds to replace those I'm > using. Is there a standard headphone jack output impedance for the family of > K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head > phones or ear buds and want them to be the best match. I know I could find > all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. > Or is it more efficient? > >Kevin. KD5ONS > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoung...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Headphone jack impedance
Best earbuds bar none: Etymotic. Not cheap. Nothing really good is. Ken K6MR From: elecraft-boun...@mailman.qth.net on behalf of kevinr Sent: Saturday, July 21, 2018 7:39:31 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Headphone jack impedance I am just starting my search for a good set of ear buds to replace those I'm using. Is there a standard headphone jack output impedance for the family of K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head phones or ear buds and want them to be the best match. I know I could find all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. Or is it more efficient? Kevin. KD5ONS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@outlook.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] TS520S and KPA500/KAT500
And will need to do that tuning repeatedly on each band. 20w drive is about right On Sat, Jul 21, 2018 at 19:55 Don Wilhelm wrote: > Bill, > > Since the 520S is a tube output transceiver, I think you need to tune > the PA stage into a 50 ohm dummy load so it matches the input of the > KPA500. > > Yes, then start at low power and bring it up until you have your desired > power out of the KPA500. > > 73, > Don W3FPR > > On 7/21/2018 9:59 PM, Nr4c wrote: > > I want to use a Kenwood 520S with my KPA500 amp. I have the cable from > the 520 Remote connector to amp PTT IN. > > > > I assume I should tune up radio with dummy load and then turn Drive down > low and switch amp to Operate. Now turn up drive to get desire amp output. > > > > Now I ask, “What have I forgotten (or never knew about tube radios))?” > Anything else I need to pay attention to or what am I missing? > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w3tb@gmail.com -- 73 de Ted Edwards, W3TB and GØPWW and thinking about operating CW: "Do today what others won't, so you can do tomorrow what others can't." __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft] Coax Switches for KPA1500
One option in my thinking is to use the coax switch on the input of the KPA1500. Then one can switch between the K3 and K2/100 and not need a high power switch. The KPA1500 in standby is then in bypass mode and one doesn't have concerns about switching high power. Oh what the heck do I know. I only run a KPA500 with switching between two radios to the input. Also have PTT interfaced accordingly. 73 Bob, K4TAX On 7/21/2018 4:52 PM, j...@kk9a.com wrote: I have had a Daiwa two position switch for decades. It is not part of my permanent setup however I have used it on many occasions running legal limit on HF without issue. It appears to be a well made switch. If they did not discontinue the four position one I would have purchased one for a DXpedition. Power ratings are frequency related, your switch is rated up to 600MHz and perhaps the UHF connectors are the limiting factor. At what frequency is it rated for 1KW CW? You did not specify what bands you operate, if you want the best manual coax switch look at a Bird. John KK9A Elecraft] Coax Switches for KPA1500 Dauer, Edward edauer at law.du.edu What sort of mechanical coax switches are available for 1500 watts continuous power? The one item I haven't yet upgraded since putting the KPA1500 amp in place was a two-position coax switch. I have the K3/KPA1500 on one side and a standby rig - a K2/100 - on the other, switching either one to the antenna feed. The Daiwa CS-201A that I have in place now is rated to 2.5 KW SSB but only 1.0 KW CW. The Daiwa 201GII has a 1.5 KW CW power rating, but it comes only with N-type connectors. I could use that with three N-to-UHF adapters, I suppose, or redo three coax terminations; but thought I'd ask first if anyone knows of a manual switch with high isolation, unused side grounded, 1.5 KW continuous power capability, and UHF-F connectors. My Internet search came up empty. Thanks in advance, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Headphone jack impedance
Kevin, The impedance does not matter much. What is important with ear buds is the SPL rating - the higher the number, the more response you will get from them. Where impedance matters is only in low impedance speaker connections. For instance the K2 internal speaker is a 4 ohm impedance. If you connect an 8 ohm speaker to the EXT SPKR jack, you may have inadequate audio because the audio amp cannot put enough power into an 8 ohm load. Headphones OTOH tend to be higher impedance devices, and the voltage produced by the audio amplifier will be the determining factor. The K2 has limited audio (by design) because the audio amplifier is typically the culprit for receive current drain. The K2 was designed for QRP portable operation with low receive current drain. 73, Don W3FPR On 7/21/2018 10:39 PM, kevinr wrote: I am just starting my search for a good set of ear buds to replace those I'm using. Is there a standard headphone jack output impedance for the family of K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head phones or ear buds and want them to be the best match. I know I could find all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. Or is it more efficient? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft CW Net Announcement
Good Evening, It was a very pleasant day; sunny and mild. The spiders are much smaller than they will be later in the season. I had already raided the backyard and there were no more ripe black berries left. I was on a quest for more. So I walked in areas of my land I had not traveled in a few years. There was one spot where the elk had been bedding. It smelled like a barn which was got my attention. It was well shaded so the alder branches had died and broken off far above ground level. While I am much taller than our native deer the elk need taller trails which are a comfortable fit for me. I only found a few spots with black berries but did find a lot of huckleberries. Now the waiting for the thimble berries. Maybe two weeks. Twenty-four days without a spot on the sun. The solar flux index seems stuck on the same spot it's been at for months. This leads me to believe the conditions will be quite similar to what they have been for the last few weeks. Low noise but weak signals with deep QSB. Good thing I live in a very low noise area; it helps a great deal in who I can hear. A stream of solar wind is on the way for the 24th, by Wednesday conditions may be better. Please join us tomorrow on: 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7045 kHz at z Monday (5 PM PDT Sunday) 73, Kevin. KD5ONS _ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] TS520S and KPA500/KAT500
Bill, Since the 520S is a tube output transceiver, I think you need to tune the PA stage into a 50 ohm dummy load so it matches the input of the KPA500. Yes, then start at low power and bring it up until you have your desired power out of the KPA500. 73, Don W3FPR On 7/21/2018 9:59 PM, Nr4c wrote: I want to use a Kenwood 520S with my KPA500 amp. I have the cable from the 520 Remote connector to amp PTT IN. I assume I should tune up radio with dummy load and then turn Drive down low and switch amp to Operate. Now turn up drive to get desire amp output. Now I ask, “What have I forgotten (or never knew about tube radios))?” Anything else I need to pay attention to or what am I missing? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Headphone jack impedance
I am just starting my search for a good set of ear buds to replace those I'm using. Is there a standard headphone jack output impedance for the family of K2, K1, KX1, K3, KX3, and KX2 transceivers? I plan to buy a set of head phones or ear buds and want them to be the best match. I know I could find all this data by opening and doing a ctrl-f on all the manuals but I'm lazy. Or is it more efficient? Kevin. KD5ONS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Sunspots - More patience required . . .
Those of us who study solar physics actually view the 11 years as half of the 22 years it takes for the magnetic cycle to complete. A peak or minimum is not a complete cycle. 73 Leroy AB7CE -Original Message- From: Dauer, Edward Sent: Saturday, July 21, 2018 4:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Sunspots - More patience required . . . This month’s Scientific American has an interesting one-page article on sunspots. The 11-year cycle (the Schwabe cycle) is the one we tend to focus on, but there are 88 year cycles (the Gleissberg), occasional 200 year peaks (Suess-DeVries), and a 2,400 year (Hallstatt) cycle as well. The longer cycles look like modulation envelopes with the shorter cycles constrained within them. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] TS520S and KPA500/KAT500
I want to use a Kenwood 520S with my KPA500 amp. I have the cable from the 520 Remote connector to amp PTT IN. I assume I should tune up radio with dummy load and then turn Drive down low and switch amp to Operate. Now turn up drive to get desire amp output. Now I ask, “What have I forgotten (or never knew about tube radios))?” Anything else I need to pay attention to or what am I missing? Sent from my iPhone ...nr4c. bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Sunspots - More patience required . . .
The article is on-line: https://www.scientificamerican.com/article/the-sunspot-cycle-is-more-intricate-than-previously-thought/ 73, Randy, KS4L > On Jul 21, 2018, at 5:47 PM, Dauer, Edward wrote: > > This month’s Scientific American has an interesting one-page article on > sunspots. The 11-year cycle (the Schwabe cycle) is the one we tend to focus > on, but there are 88 year cycles (the Gleissberg), occasional 200 year peaks > (Suess-DeVries), and a 2,400 year (Hallstatt) cycle as well. The longer > cycles look like modulation envelopes with the shorter cycles constrained > within them. > > It seems from the graphic that we are only a few hundred years off the low of > the 2,400 year cycle as well as suffering the bottom of the 11 year. The > last peak of the 2,400 year looks like it was at about the year 300 CE (a/k/a > AD). So the next Hallstatt peak should be due in around 600 years, if I am > interpolating from the graphics correctly. I should probably replace all the > coax by then. > > The article is non-technical but visually striking. I have no way to post > it, and shouldn’t without SA’s permission anyway; but I can send a pdf copy > by return e-mail attachment if anyone wants one. Request off line please > since this is sort of OT. > > Ted, KN1CBR > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wrmoor...@gmail.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 Message delivered to arch...@mail-archive.com
[Elecraft] Sunspots - More patience required . . .
This month’s Scientific American has an interesting one-page article on sunspots. The 11-year cycle (the Schwabe cycle) is the one we tend to focus on, but there are 88 year cycles (the Gleissberg), occasional 200 year peaks (Suess-DeVries), and a 2,400 year (Hallstatt) cycle as well. The longer cycles look like modulation envelopes with the shorter cycles constrained within them. It seems from the graphic that we are only a few hundred years off the low of the 2,400 year cycle as well as suffering the bottom of the 11 year. The last peak of the 2,400 year looks like it was at about the year 300 CE (a/k/a AD). So the next Hallstatt peak should be due in around 600 years, if I am interpolating from the graphics correctly. I should probably replace all the coax by then. The article is non-technical but visually striking. I have no way to post it, and shouldn’t without SA’s permission anyway; but I can send a pdf copy by return e-mail attachment if anyone wants one. Request off line please since this is sort of OT. Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Changing defective KX3 VFO B encoder
Scott, There is no need to remove the membrane switch assembly to replace the encoder at the VFO B location on the KX3. I just examined a CP board assembly to verify this. However, a lot of heat (not high temperature! they aren't the same!) is needed to unsolder the frame mounting lugs. My approach would be to melt a small amount of ChipQuik on the 5 pins as well as the two lugs using a soldering iron set too a temperature too low low to melt regular solder, ensuring the ChipQuik has blended with the solder. Might need a bit more at those pesky lugs. Then use a hot-air gun to warm those pads simultaneously. The VFO B encoder should then easily come off the board without damaging or loosening any other parts. I would be very hesitant to do this without using ChipQuik or its equivalent to lower to melting point temperature at those seven connection points. Repairing a heat-damaged PCB can be quite expensive. 73, Lyle KK7P (who designed this particular board in the KX3 product) On 7/21/18 3:06 PM, Scott Manthe wrote: The VFO B encoder in my KX3 is defective. I've decided that I'd to try and change it myself. My question is has anyone removed rubber button membrane/pad from the circuit board. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Changing defective KX3 VFO B encoder
The VFO B encoder in my KX3 is defective. I've decided that I'd to try and change it myself. My question is has anyone removed rubber button membrane/pad from the circuit board. I believe there is a Mylar sheet under the buttons, and it the button membrane seems to be adhered to the the PCB. Is the button pad removable without damage to it or the Mylar membrane? Thanks in advance- Scott, N9AA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft] Coax Switches for KPA1500
I have had a Daiwa two position switch for decades. It is not part of my permanent setup however I have used it on many occasions running legal limit on HF without issue. It appears to be a well made switch. If they did not discontinue the four position one I would have purchased one for a DXpedition. Power ratings are frequency related, your switch is rated up to 600MHz and perhaps the UHF connectors are the limiting factor. At what frequency is it rated for 1KW CW? You did not specify what bands you operate, if you want the best manual coax switch look at a Bird. John KK9A Elecraft] Coax Switches for KPA1500 Dauer, Edward edauer at law.du.edu What sort of mechanical coax switches are available for 1500 watts continuous power? The one item I haven't yet upgraded since putting the KPA1500 amp in place was a two-position coax switch. I have the K3/KPA1500 on one side and a standby rig - a K2/100 - on the other, switching either one to the antenna feed. The Daiwa CS-201A that I have in place now is rated to 2.5 KW SSB but only 1.0 KW CW. The Daiwa 201GII has a 1.5 KW CW power rating, but it comes only with N-type connectors. I could use that with three N-to-UHF adapters, I suppose, or redo three coax terminations; but thought I'd ask first if anyone knows of a manual switch with high isolation, unused side grounded, 1.5 KW continuous power capability, and UHF-F connectors. My Internet search came up empty. Thanks in advance, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 CAT connection to SPE Amplifier information needed
My new Serial Box (or "S-BOX") is specifically intended to be a flexible interface between the K3/K3S, KX2, KX3 and an SPE Amp's CAT port. It will also do the same for an ACOM CAT port or an Elecraft KPA1500 3.5 mm stereo "PC DATA" connector (for non-Elecraft radios). A serial Y-Cable alone on the P3 may not work unless you take care to make no connection from the SPE amp's CAT port to Pin 3 (TXD) of the P3's "PC RS232" port. I would need to see a schematic of the CBLP3Y to make sure, but I think TXD line from the K3 must be connected to the P3 there, which means you cannot connect anything else. Has anyone ever found a CBLP3Y schematic? If so, please share. SPE amps use a DA-15 "CAT" connector. To follow the K3's frequency data, they require on that 15 pin connector: Pin 1 = RS232 RXD (DE-9 pin 2) Pin 4 = Ground (DE-9 pin 5) Pin 9 = RS232 TXD (DE-9 pin 3) (*) (*) The TXD line should only be connected if the amp. *alone* is going to "poll" the K3 for frequency data. You cannot use a logging program on the USB port to poll the radio at the same time as the amp, and you cannot connect two TXD lines to each other in parallel. To get the amp. to always track the radio, you will need to have a logging programming polling the radio continuously, or use CONFIG:AUTOINF 1, while letting the amp. "just listen" on the RXD pin. The S-BOX will be sold with a new 100% shielded Amphenol cable that has all 15 pins wired straight through. It connects the DE-15 connector on the S-BOX to the DA-15 connector on the SPE CAT. One can then break out any pin on the SPE CAT connector via internal jumpers in the S-BOX, providing easy access to any pin required (e.g. RXD RS-232, TXD RS-232, RXD-TTL, TXD-TTL, Signal Ground, Amp Relay, Remote Power ON, ALC, TX Inhibit, etc.). Connect any SPE pin to an RCA connector on the S-BOX or to the proper pins on the DE-9 serial connectors, using the jumper wires provided. Stay tuned for more info. about the new S-BOX. 73, Bob, N6TV On Fri, Jul 20, 2018 at 8:43 PM, Barry Simpson wrote: > Thank you to all those of you who replied to my earlier query regarding > band data information. > > I am now also looking for a way to provide a CAT interface to the SPE > amplifier without using a separate computer program. > > My set up is a K3 fully upgraded with the RJ45 serial port which connects > via the Elecraft custom cable to a P3. > > Both connectors on the P3 are DB9, ie normal serial connectors. > > As such, can I simply insert a further Y cable between one of the P3 serial > ports and the incoming cable from the K3 and then use the extra leg (with a > DB9 on the end) to connect to the SPE amplifier for CAT control ? > > Or is that idea too simple ? > > Any advice would be appreciated. > > Thanks and 73 > > Barry VK2BJ > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@arrl.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Coax Switches for KPA1500
The Alpha Delta 2B fills the bill. Don't know how I missed it in the Google search. Pricey at $75 but they have another advantage -- both sides grounded when the switch is in the "COM" position. That isn't the case for the Daiwas. If I have done the math right, 50 db isolation yields 15 milliwatts down from 1500 watts - should be OK for a K3/KPA1500 on one side and a K2 on the other. Thanks! Ted, KN1CBR On 7/21/18, 1:49 PM, "hawley, charles j jr" wrote: Alpha Delta. It comes in N and also alternatively, SO239 connectors. https://www.dxengineering.com/parts/alf-delta-4b actually... https://www.dxengineering.com/search/product-line/alpha-delta-coax-switches?autoview=SKU&sortby=Default&sortorder=Ascending Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Dauer, Edward [eda...@law.du.edu] Sent: Saturday, July 21, 2018 2:38 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Coax Switches for KPA1500 What sort of mechanical coax switches are available for 1500 watts continuous power? The one item I haven’t yet upgraded since putting the KPA1500 amp in place was a two-position coax switch. I have the K3/KPA1500 on one side and a standby rig – a K2/100 – on the other, switching either one to the antenna feed. The Daiwa CS-201A that I have in place now is rated to 2.5 KW SSB but only 1.0 KW CW. The Daiwa 201GII has a 1.5 KW CW power rating, but it comes only with N-type connectors. I could use that with three N-to-UHF adapters, I suppose, or redo three coax terminations; but thought I’d ask first if anyone knows of a manual switch with high isolation, unused side grounded, 1.5 KW continuous power capability, and UHF-F connectors. My Internet search came up empty. Thanks in advance, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Coax Switches for KPA1500
Alpha Delta. It comes in N and also alternatively, SO239 connectors. https://www.dxengineering.com/parts/alf-delta-4b actually... https://www.dxengineering.com/search/product-line/alpha-delta-coax-switches?autoview=SKU&sortby=Default&sortorder=Ascending Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Dauer, Edward [eda...@law.du.edu] Sent: Saturday, July 21, 2018 2:38 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Coax Switches for KPA1500 What sort of mechanical coax switches are available for 1500 watts continuous power? The one item I haven’t yet upgraded since putting the KPA1500 amp in place was a two-position coax switch. I have the K3/KPA1500 on one side and a standby rig – a K2/100 – on the other, switching either one to the antenna feed. The Daiwa CS-201A that I have in place now is rated to 2.5 KW SSB but only 1.0 KW CW. The Daiwa 201GII has a 1.5 KW CW power rating, but it comes only with N-type connectors. I could use that with three N-to-UHF adapters, I suppose, or redo three coax terminations; but thought I’d ask first if anyone knows of a manual switch with high isolation, unused side grounded, 1.5 KW continuous power capability, and UHF-F connectors. My Internet search came up empty. Thanks in advance, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] More real serial ports on the K3
Thank you. Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Clay Autery [k...@montac.com] Sent: Saturday, July 21, 2018 9:07 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] More real serial ports on the K3 Oh, for heaven's sake HERE!!! http://montac.com/images/misc/O4202799.JPG __ Clay Autery, KY5G (318) 518-1389 On 21-Jul-18 07:52, hawley, charles j jr wrote: > Do you have a photo where one doesn’t have to log into Google and share info > with Google? > > Chuck > KE9UW > > Sent from my iPhone, cjack > >> On Jul 20, 2018, at 10:48 PM, Bob Wilson, N6TV wrote: >> >> Sorry for the trouble; this is a direct link to the photo of the new S-BOX >> taken at Visalia: >> >> https://photos.app.goo.gl/57MkD6TQhL8cKLpv8 >> >> 73, >> Bob, N6TV >> >>> On Fri, Jul 20, 2018 at 8:24 PM, Bob Wilson, N6TV wrote: >>> >>> Hmm. Try https://bit.ly/Visalia2018 and scroll down to about photo #34. >>> >>> 73, >>> Bob, N6TV >>> On Fri, Jul 20, 2018 at 8:13 PM, Tim Herrick wrote: Sorry Bob, I get: 403. That’s an error. We're sorry, but you do not have access to this page. That’s all we know. when I tried to access. 73 Tim, KQ8M k...@kq8m.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 >> Message delivered to c-haw...@illinois.edu > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k...@montac.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 Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Coax Switches for KPA1500
What sort of mechanical coax switches are available for 1500 watts continuous power? The one item I haven’t yet upgraded since putting the KPA1500 amp in place was a two-position coax switch. I have the K3/KPA1500 on one side and a standby rig – a K2/100 – on the other, switching either one to the antenna feed. The Daiwa CS-201A that I have in place now is rated to 2.5 KW SSB but only 1.0 KW CW. The Daiwa 201GII has a 1.5 KW CW power rating, but it comes only with N-type connectors. I could use that with three N-to-UHF adapters, I suppose, or redo three coax terminations; but thought I’d ask first if anyone knows of a manual switch with high isolation, unused side grounded, 1.5 KW continuous power capability, and UHF-F connectors. My Internet search came up empty. Thanks in advance, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] S Meter Lite Problem
You are most welcome! 73s and thanks, Dave (NK7Z/NNR0DC) https://www.nk7z.net ARRL Technical Specialist ARRL Official Observer Coordinator, for Oregon On 07/21/2018 07:11 AM, Steve Mollman via Elecraft wrote: Problem solved. Thank you to NK7Z-Dave Cole, who walked me through the correct configuration and as a bonus offered tips on the program's features. All is well! Steve Mollman-KD9HL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB sound card problem
Do you have anything connected to the "Line In" jack on the K3S? Doing so will disconnect the output of USB Audio CODEC and substitute the Line In audio. 73, ... Joe, W4TV On 2018-07-21 10:54 AM, Mike Dodd wrote: On 7/21/2018 10:23 AM, Glenn Anderson wrote: Make sure that you have the K3 sound card selected as the output sound device in MMTTY. Yes. I forgot to mention that. If I select the PC speakers as the output device and hit TX in MMTTY, I can hear the FSK tones. But if I select USB Audio Codec as the output device, the tones are not sent to the K3s. I have done this repeatedly, with the same result -- no audio is reaching the USB sound card to key the K3's VOX or modulate the transmitter. --- Mike __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB sound card problem
On 7/21/2018 10:23 AM, Glenn Anderson wrote: Make sure that you have the K3 sound card selected as the output sound device in MMTTY. Yes. I forgot to mention that. If I select the PC speakers as the output device and hit TX in MMTTY, I can hear the FSK tones. But if I select USB Audio Codec as the output device, the tones are not sent to the K3s. I have done this repeatedly, with the same result -- no audio is reaching the USB sound card to key the K3's VOX or modulate the transmitter. --- Mike __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB sound card problem
If checking and if necessary correcting the output sound device selection in MMTTY doesn't solve the problem, here are a few other things to look at: The Windows sound card level setting on the USB audio codec (playback side) The K3S's MAIN:MIC SEL setting while in AFSK A (it should be LINE IN) The K3S's Mic gain setting while in AFSK A The K3S's MAIN:VOX GN setting while in AFSK A (if you get an indication on the ALC meter but it doesn't trigger PTT) 73, Rich VE3KI WB5TUF wrote: Make sure that you have the K3 sound card selected as the output sound device in \ MMTTY. Original message From: Mike Dodd Date: 7/21/18 \ 09:13 (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft] K3s USB sound \ card problem I'm trying to get my K3s with built-in USB sound card working with \ MMTTY in data mode AFSK A. I had this set up and working FB in the past, but now I can't transmit. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB sound card problem
Make sure that you have the K3 sound card selected as the output sound device in MMTTY. Original message From: Mike Dodd Date: 7/21/18 09:13 (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft] K3s USB sound card problem I'm trying to get my K3s with built-in USB sound card working with MMTTY in data mode AFSK A. I had this set up and working FB in the past, but now I can't transmit. Since the last time I used RTTY, I have installed a KPA500 and KAT500, with their associated factory cabling. But Elecraft Support says these have no effect on the USB sound card. I'm running Windows 8.1 Pro. I am convinced that audio from an application is not reaching the USB sound card. In Control Panel I can test the speakers by playing a sound. If I do this test with the computer speakers, I hear the sound. But if I test with the USB audio codec, the K3 doesn't go into XMIT (VOX is on), and there is no indication on the ALC meter. I have rebooted the PC several times. The K3 Utility communicates with the K3s, and the Terminal can transmit in the FSK D mode. But I assume Terminal does not send audio FSK tones, so it's of no help there. I have unplugged and re-plugged the USB cable from the Elecraft equipment to the PC, but this did not solve the problem. Windows Control Panel says the audio device is working correctly. But it doesn't receive audio from Windows applications. Does anyone have any suggestions? Thank you. -- 73, Mike N4CF Louisa County, VA USA Elecraft K-Line: K3s / P3 / KPA500 / KAT500 Carolina Windom up 45' http://n4cf.mdodd.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 Message delivered to wb5...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3s USB sound card problem
I'm trying to get my K3s with built-in USB sound card working with MMTTY in data mode AFSK A. I had this set up and working FB in the past, but now I can't transmit. Since the last time I used RTTY, I have installed a KPA500 and KAT500, with their associated factory cabling. But Elecraft Support says these have no effect on the USB sound card. I'm running Windows 8.1 Pro. I am convinced that audio from an application is not reaching the USB sound card. In Control Panel I can test the speakers by playing a sound. If I do this test with the computer speakers, I hear the sound. But if I test with the USB audio codec, the K3 doesn't go into XMIT (VOX is on), and there is no indication on the ALC meter. I have rebooted the PC several times. The K3 Utility communicates with the K3s, and the Terminal can transmit in the FSK D mode. But I assume Terminal does not send audio FSK tones, so it's of no help there. I have unplugged and re-plugged the USB cable from the Elecraft equipment to the PC, but this did not solve the problem. Windows Control Panel says the audio device is working correctly. But it doesn't receive audio from Windows applications. Does anyone have any suggestions? Thank you. -- 73, Mike N4CF Louisa County, VA USA Elecraft K-Line: K3s / P3 / KPA500 / KAT500 Carolina Windom up 45' http://n4cf.mdodd.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] S Meter Lite Problem
Problem solved. Thank you to NK7Z-Dave Cole, who walked me through the correct configuration and as a bonus offered tips on the program's features. All is well! Steve Mollman-KD9HL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] More real serial ports on the K3
Oh, for heaven's sake HERE!!! http://montac.com/images/misc/O4202799.JPG __ Clay Autery, KY5G (318) 518-1389 On 21-Jul-18 07:52, hawley, charles j jr wrote: Do you have a photo where one doesn’t have to log into Google and share info with Google? Chuck KE9UW Sent from my iPhone, cjack On Jul 20, 2018, at 10:48 PM, Bob Wilson, N6TV wrote: Sorry for the trouble; this is a direct link to the photo of the new S-BOX taken at Visalia: https://photos.app.goo.gl/57MkD6TQhL8cKLpv8 73, Bob, N6TV On Fri, Jul 20, 2018 at 8:24 PM, Bob Wilson, N6TV wrote: Hmm. Try https://bit.ly/Visalia2018 and scroll down to about photo #34. 73, Bob, N6TV On Fri, Jul 20, 2018 at 8:13 PM, Tim Herrick wrote: Sorry Bob, I get: 403. That’s an error. We're sorry, but you do not have access to this page. That’s all we know. when I tried to access. 73 Tim, KQ8M k...@kq8m.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 Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@montac.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] More real serial ports on the K3
Do you have a photo where one doesn’t have to log into Google and share info with Google? Chuck KE9UW Sent from my iPhone, cjack > On Jul 20, 2018, at 10:48 PM, Bob Wilson, N6TV wrote: > > Sorry for the trouble; this is a direct link to the photo of the new S-BOX > taken at Visalia: > > https://photos.app.goo.gl/57MkD6TQhL8cKLpv8 > > 73, > Bob, N6TV > >> On Fri, Jul 20, 2018 at 8:24 PM, Bob Wilson, N6TV wrote: >> >> Hmm. Try https://bit.ly/Visalia2018 and scroll down to about photo #34. >> >> 73, >> Bob, N6TV >> >>> On Fri, Jul 20, 2018 at 8:13 PM, Tim Herrick wrote: >>> >>> Sorry Bob, I get: >>> >>> >>> 403. That’s an error. >>> >>> We're sorry, but you do not have access to this page. That’s all we know. >>> >>> when I tried to access. >>> >>> 73 >>> Tim, KQ8M >>> k...@kq8m.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 > Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
