Re: [Elecraft] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Hi Wayne: I noticed you are using the big Power Poles for the DC HV. I also note the cable length is listed at 5.5’ and that longer cable lengths will be supported. I have found that high currents cables can be a PITA. I hope that you are using high flex welding cables, hopefully the kind with embedded control lines so that Kelvin sensing can be used for longer cable lengths. Are the fans temperature controlled liked KPA500? I also have not seen the drive requirements listed. Have we gotten around the FCC 13db rule? Finally, you need to proof the FAQ one more time. You have ‘cable’ in place of ‘cabinet’ in one place. 73 Fred, AE6QL From: elecraft...@yahoogroups.com [mailto:elecraft...@yahoogroups.com] Sent: Thursday, April 20, 2017 9:01 PM To: Elecraft Reflector Cc: elecraft...@yahoogroups.com; elecr...@yahoogroups.com Subject: [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply We’re pleased to announce our KPA1500 solid-state amplifier, covering 160 to 6 meters. Max power output is 1500 Watts. Other important features include: - Small RF deck fits on nearly any desktop (~4.5 x 13 x 11.5”, HWD); weighs only ~22 pounds - Separate lightweight switching power supply weighs ~15 pounds (standard cable is 6 feet long) - Styling matches our other K-Line products - Built-in wide-range antenna tuner (ATU) with instant recall of per-band/per-segment settings - Dual antenna jacks - Rich I/O complement including Ethernet - Interfaces to nearly any transceiver; fully integrated with K3 and K3S - Extensive parametric monitoring ensures safe operation - Silent PIN-diode T/R switching (no QSK relays) Introductory price: $5995. For photos and additional information, use the links below: http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf If you’d like to be notified when we begin taking orders, please contact Elecraft. Or add your name to the list at the Visalia DX convention this weekend. Required notification: "This device has not yet been authorized as required by FCC rules. It is not, and may not be offered for sale, or lease, or sold or leased, until authorization is obtained." 73, Wayne, N6KR Eric, WA6HHQ __._,_.___ _ Posted by: Wayne Burdick <n...@elecraft.com> _ <https://groups.yahoo.com/neo/groups/Elecraft_K3/conversations/messages/28388;_ylc=X3oDMTJyN3J1YXRqBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAMyODM4OARzZWMDZnRyBHNsawNycGx5BHN0aW1lAzE0OTI3NDcyOTI-?act=reply=28388> Reply via web post • <mailto:n...@elecraft.com?subject=Re%3A%20New%20from%20Elecraft%3A%20%20KPA1500%20amplifier%20with%20built-in%20ATU%2C%20separate%20power%20supply> Reply to sender • <mailto:elecraft...@yahoogroups.com?subject=Re%3A%20New%20from%20Elecraft%3A%20%20KPA1500%20amplifier%20with%20built-in%20ATU%2C%20separate%20power%20supply> Reply to group • <https://groups.yahoo.com/neo/groups/Elecraft_K3/conversations/newtopic;_ylc=X3oDMTJmYzUydWVtBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNudHBjBHN0aW1lAzE0OTI3NDcyOTI-> Start a New Topic • <https://groups.yahoo.com/neo/groups/Elecraft_K3/conversations/topics/28388;_ylc=X3oDMTM3dXVqMzcyBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAMyODM4OARzZWMDZnRyBHNsawN2dHBjBHN0aW1lAzE0OTI3NDcyOTIEdHBjSWQDMjgzODg-> Messages in this topic (1) _ <https://s.yimg.com/ru/static/images/yg/img/megaphone/1464031581_phpFA8bON> <https://yho.com/1wwmgg> Have you tried the highest rated email app? With 4.5 stars in iTunes, the Yahoo Mail app is the highest rated email app on the market. What are you waiting for? Now you can access all your inboxes (Gmail, Outlook, AOL and more) in one place. Never delete an email again with 1000GB of free cloud storage. _ <https://groups.yahoo.com/neo/groups/Elecraft_K3/info;_ylc=X3oDMTJmZG9yY3N1BF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2Z2hwBHN0aW1lAzE0OTI3NDcyOTI-> Visit Your Group · <https://groups.yahoo.com/neo/groups/Elecraft_K3/members/all;_ylc=X3oDMTJnMW1wOWQzBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDdnRsBHNsawN2bWJycwRzdGltZQMxNDkyNzQ3Mjky> New Members 3 <https://groups.yahoo.com/neo;_ylc=X3oDMTJlZHRhdmw0BF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNnZnAEc3RpbWUDMTQ5Mjc0NzI5Mg--> Yahoo! Groups • <https://info.yahoo.com/privacy/us/yahoo/groups/details.html> Privacy • <mailto:elecraft_k3-unsubscr...@yahoogroups.com?subject=Unsubscribe> Unsubscribe • <https://info.yahoo.com/legal/us/yahoo/utos/terms/> Terms of Use . <http://geo.yahoo.com/serv?s=97359714/grpId=20149428/grpspId=1705063108/msgId=28388/stime=1492747292> <http://y.analytics.yahoo.com/fpc.pl?ywarid=515FB27823A7407E=100013103
Re: [Elecraft] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Excellent point I look forward to deploying more/better copper! :-) __ Clay Autery, KY5G On 4/21/2017 11:32 AM, Alan Bloom wrote: > With 1500W of power, if the SWR is greater than 3:1 you may be > exceeding the ratings of the feedline. For example, Belden 9914 is > rated at a maximum of 300 VRMS, which is 1800W with a 50-ohm feedline > or only 600W with a 3:1 SWR. At 30 MHz, RG-8/213 style coax is > typically rated at 1500W with a 1:1 SWR. > > It's true that you can do more than that with low-duty-factor modes > like CW and SSB, but if you are running much more than 3:1 SWR you may > be in danger of damaging the feedline. > > Alan N1AL > > __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
An excellent point missed by many of the desktop tuner and high feedline SWR advocates who insist on using coax fed antennas. Typically, they blame their failures on cheap coax. 73, Bill - NA5DX On 4/21/2017 11:32 AM, Alan Bloom wrote: With 1500W of power, if the SWR is greater than 3:1 you may be exceeding the ratings of the feedline. For example, Belden 9914 is rated at a maximum of 300 VRMS, which is 1800W with a 50-ohm feedline or only 600W with a 3:1 SWR. At 30 MHz, RG-8/213 style coax is typically rated at 1500W with a 1:1 SWR. It's true that you can do more than that with low-duty-factor modes like CW and SSB, but if you are running much more than 3:1 SWR you may be in danger of damaging the feedline. Alan N1AL On 04/21/2017 06:28 AM, Jim Miller wrote: Wes Can you describe your affected antennas? 73 Jim ab3cv On Apr 21, 2017, at 8:56 AM, Wes Stewartwrote: A couple of points. If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong. If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner. On 4/21/2017 4:34 AM, j...@kk9a.com wrote: The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A __ 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 breede...@cableone.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] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Ease up for a minute Look at it my way. I KNOW I am gonna need an external tuner with massive capability to do the same thing I am doing now only one tuner on the commercial market will tune my 80m loop at 1500W the way the K3s can. I didn't WANT an onboard tuner... I consider the price point fair for an amp only. It would cost me roughly that much to build one from a true kit, boards, or schematic... (Looking forward to it). Tuning full range, full-power, from 160-6m, from more than 3:1 gets expensive, big, and heavy in a hurry MOST folks don't need/want a tuner like that, especially if it takes more money out their pocket. Consider the on-board tuner a bonus extra... and if so inclined send up a prayer the FCC approval is rapidly forthcoming. :-) 73, __ Clay Autery, KY5G On 4/21/2017 7:56 AM, Wes Stewart wrote: > A couple of points. > > If you believe that an SWR of >3 necessarily degrades the efficiency > of an antenna, you are simply wrong. > > If the "tuner" components have to be derated to this extent then > perhaps it should be called a line flattener rather than a tuner > because a lot of guys are still going to need a tuner. > > > > On 4/21/2017 4:34 AM, j...@kk9a.com wrote: >> The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need >> to do some work outside. It will help your signal much more than the >> amp. >> Even when I operated the RTTY Roundup in January after an ice storm my >> antennas were within this amplifiers SWR range. >> >> John KK9A >> >> from: Wes Stewartn7ws >> Fri Apr 21 01:18:59 EDT 2017 >> ] >> Not enough full power tuner range. __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
I'm not necessarily defining a personal situation. But almost any 80 or 160 antenna will suffice as an example. I am currently constructing a vertical for those bands. The model shows 2:1 on 160 at resonance and >3:1 just 60 KHz away and this is with considerable ground loss. Less loss would equal lower BW. With quarter wave resonance on 80 at 3.6 MHz it exceeds 3:1 at 3.8 MHz and is nearly 7:1 at 4.0. Transmission line loss is a non-issue with 7/8" Heliax. On 4/21/2017 6:28 AM, Jim Miller wrote: Wes Can you describe your affected antennas? 73 Jim ab3cv On Apr 21, 2017, at 8:56 AM, Wes Stewartwrote: A couple of points. If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong. If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner. On 4/21/2017 4:34 AM, j...@kk9a.com wrote: The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A from: Wes Stewartn7ws Fri Apr 21 01:18:59 EDT 2017 ] Not enough full power tuner range. __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
With 1500W of power, if the SWR is greater than 3:1 you may be exceeding the ratings of the feedline. For example, Belden 9914 is rated at a maximum of 300 VRMS, which is 1800W with a 50-ohm feedline or only 600W with a 3:1 SWR. At 30 MHz, RG-8/213 style coax is typically rated at 1500W with a 1:1 SWR. It's true that you can do more than that with low-duty-factor modes like CW and SSB, but if you are running much more than 3:1 SWR you may be in danger of damaging the feedline. Alan N1AL On 04/21/2017 06:28 AM, Jim Miller wrote: Wes Can you describe your affected antennas? 73 Jim ab3cv On Apr 21, 2017, at 8:56 AM, Wes Stewartwrote: A couple of points. If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong. If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner. On 4/21/2017 4:34 AM, j...@kk9a.com wrote: The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Wes Can you describe your affected antennas? 73 Jim ab3cv On Apr 21, 2017, at 8:56 AM, Wes Stewartwrote: A couple of points. If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong. If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner. > On 4/21/2017 4:34 AM, j...@kk9a.com wrote: > The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need > to do some work outside. It will help your signal much more than the amp. > Even when I operated the RTTY Roundup in January after an ice storm my > antennas were within this amplifiers SWR range. > > John KK9A > > from: Wes Stewartn7ws > Fri Apr 21 01:18:59 EDT 2017 > ] > Not enough full power tuner range. > __ 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 j...@jtmiller.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] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
John, Don't agree--unless there truly is something wrong with the antenna, connections or feedline. Does your 80 or 160M antenna cover the entire band with <3:1 SWR? If fact, on those bands the extra loss due to SWR is negligible with even 5:1 SWR's with usual coax. On 80M with a 5:1 SWR and 150' of RG8, TLW computes an additional loss of about 0.5 dB. The 4.5 db gain due to the extra power far outweighs the extra feedline loss. Factoring in tuner loss doesn't change the conclusions. Even on 20M, the extra loss for the above would be about 1.3 dB. My experience with ice is much different. Adding ice to a 4 el quad, the resonant frequency on 20M would shift 400 KHz (lower) giving 4:1 SWR's in the phone band. One could load it but run of the mill baluns at the feedpoint would pop at legal limit! 73 de Brian/K3KO On 4/21/2017 11:34 AM, j...@kk9a.com wrote: The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A from: Wes Stewartn7ws Fri Apr 21 01:18:59 EDT 2017 ] Not enough full power tuner range. __ 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 als...@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
Re: [Elecraft] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Wes - Excellent points. One of the locals has very fine antennas, but really appreciates the fact that his PW-1 can make the SWR look a 'bit' better. At my QTH, and TUNER, is absolutely necessary... but that is because I have only one antenna, and it is usable without a tuner on only one band. The internal tuners in most rigs can't handle it... the tuner in my K3, or my KAT500, are perfect on most bands. But a 30' vertical is a HUGE challenge for ANY tuner on 160... and many can't handle it on 80. Dave - K9FN On Fri, Apr 21, 2017 at 8:56 AM, Wes Stewartwrote: > A couple of points. > > If you believe that an SWR of >3 necessarily degrades the efficiency of an > antenna, you are simply wrong. > > If the "tuner" components have to be derated to this extent then perhaps > it should be called a line flattener rather than a tuner because a lot of > guys are still going to need a tuner. > > > > > On 4/21/2017 4:34 AM, j...@kk9a.com wrote: > >> The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need >> to do some work outside. It will help your signal much more than the amp. >> Even when I operated the RTTY Roundup in January after an ice storm my >> antennas were within this amplifiers SWR range. >> >> John KK9A >> >> from: Wes Stewartn7ws >> Fri Apr 21 01:18:59 EDT 2017 >> ] >> Not enough full power tuner range. >> >> > __ > 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 dpbu...@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] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
A couple of points. If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong. If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner. On 4/21/2017 4:34 AM, j...@kk9a.com wrote: The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A from: Wes Stewartn7ws Fri Apr 21 01:18:59 EDT 2017 ] Not enough full power tuner range. __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need to do some work outside. It will help your signal much more than the amp. Even when I operated the RTTY Roundup in January after an ice storm my antennas were within this amplifiers SWR range. John KK9A from: Wes Stewartn7ws Fri Apr 21 01:18:59 EDT 2017 ] Not enough full power tuner range. __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
The Anan SDR folks are doing this using an external coupler feeding one of the receivers in the Anan. Google “Pure Signal”, which is their name for the implementation. I think it’s a VK who is doing the firmware. There are a few YouTube videos showing the end result, and it is really impressive. The basic concept is pretty simple, but as always the devil is in the details. Way above my pay grade :^) Ken K6MR From: 'Stephen Bloom' sbl...@acsalaska.net [Elecraft_K3]<mailto:elecraft...@yahoogroups.com> Sent: Thursday, April 20, 2017 11:20 PM To: elecraft...@yahoogroups.com<mailto:elecraft...@yahoogroups.com> Subject: RE: [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply Ken: How would one implement this. I know that the real weak spot amongst the high power solid state amps available to the Amateur community has been high IMD, due to what I understand are limits to the existing DMOS chips. Thanks/73 Steve KL7SB From: elecraft...@yahoogroups.com [mailto:elecraft...@yahoogroups.com] Sent: Thursday, April 20, 2017 8:48 PM To: elecraft...@yahoogroups.com Subject: RE: [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply The Elecraft folks should be in charge of government secrets… nothing would ever leak :^) One interesting item in the rear panel photo: Tx Sample. Output for “Pure Signal” style IMD improvement using pre-distortion in an SDR radio? Ken K6MR . __,_._,___ __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Not enough full power tuner range. __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Ken K6MRwrote: > One interesting item in the rear panel photo: Tx Sample. Output for “Pure > Signal” style IMD improvement using pre-distortion in an SDR radio? Yes. Wayne N6KR __ 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_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
The Elecraft folks should be in charge of government secrets… nothing would ever leak :^) One interesting item in the rear panel photo: Tx Sample. Output for “Pure Signal” style IMD improvement using pre-distortion in an SDR radio? Ken K6MR From: 'Stephen Bloom' sbl...@acsalaska.net [Elecraft_K3]<mailto:elecraft...@yahoogroups.com> Sent: Thursday, April 20, 2017 9:40 PM To: elecraft...@yahoogroups.com<mailto:elecraft...@yahoogroups.com> Subject: RE: [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply Wow …Wayne and Eric, you do realize, this is the closest thing ever to a unicorn turning real, right? Congrats/73 Steve KL7SB who *will* own 1 or 2 of these puppies __ 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