Re: [Elecraft] The amp I would like to see Elecraft build.

for the PS From: Lewis Phelps <l...@n6lew.us> To: Elecraft Mailing List <elecraft@mailman.qth.net> Subject: Re: [Elecraft] The amp I would like to see Elecraft build. Message-ID: <bc645231-1777-48e9-9004-026c33758...@n6lew.us> Content-Type: text/plain; charset=utf-

Re: [Elecraft] The amp I would like to see Elecraft build.

FALSE. CW is 100% modulation of a carrier by a rectangular wave, and that modulation, like ANY amplitude modulation, produces sidebands, which will excite distortion in a non-linear amplifier. I don't know enough about Warren's Pure Signal system to know if it could be used on CW. IM

Re: [Elecraft] The amp I would like to see Elecraft build.

Yes but CW (and FSK/RTTY) are dead according to the FCC and ARRL. Now its all modes that require linear amplification over at least 2.7 KHz. Better get used to it! 73, ... Joe, W4TV On 8/2/2016 10:11 AM, brian wrote: Of course if one sticks to CW this isn't necessary. 73 de Brian/K3KO

Re: [Elecraft] The amp I would like to see Elecraft build.

Of course if one sticks to CW this isn't necessary. 73 de Brian/K3KO On 8/2/2016 12:45 PM, Joe Subich, W4TV wrote: On 8/2/2016 1:32 AM, Ken K6MR wrote: > While making these changes would help, they pale in comparison to a > SDR implemented pre-distortion system like Pure Signal. SDR based

Re: [Elecraft] The amp I would like to see Elecraft build.

brings new problems as antenna tuners are larger, and or resonant antennas limit band coverage. Ignacy, NO9E -- View this message in context: http://elecraft.365791.n2.nabble.com/The-amp-I-would-like-to-see-Elecraft-build-tp7620988p7621110.html Sent from the Elecraft mailing list archive

Re: [Elecraft] The amp I would like to see Elecraft build.

On 8/2/2016 1:32 AM, Ken K6MR wrote: > While making these changes would help, they pale in comparison to a > SDR implemented pre-distortion system like Pure Signal. SDR based predistortion are most effective if the individual stages are as clean as possible. That means 24/48V amplifiers for

Re: [Elecraft] The amp I would like to see Elecraft build.

Century. Ken K6MR From: Wes Stewart<mailto:wes_n...@triconet.org> Sent: Monday, August 1, 2016 21:41 To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] The amp I would like to see Elecraft build. I'm not always on the same page as Joe, but this

Re: [Elecraft] The amp I would like to see Elecraft build.

I'm not always on the same page as Joe, but this time I could not agree more. As someone who has measured the TX IMD of both my kit K3/100 and a factory built K3S/100 I can attest to this. First of all, they like every other manufacturer and the ARRL fudge the numbers by 6 dB (in their favor

Re: [Elecraft] The amp I would like to see Elecraft build.

uce a 500 watt amplifier that worked from an exciter with any level of >>> drive, even less than 1 watt. >>> >>> 73, Ron AC7AC >>> >>> >>> >>> -Original Message- >>> From: Elecraft [mailto:elecraft-boun...@mailman.

Re: [Elecraft] The amp I would like to see Elecraft build.

watt. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dan Baker Sent: Sunday, July 31, 2016 5:31 PM To: elecraft@mailman.qth.net Subject: [Elecraft] The amp I would like to see Elecraft build. Once the FCC removes the 15 dB

Re: [Elecraft] The amp I would like to see Elecraft build.

[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dan Baker Sent: Sunday, July 31, 2016 5:31 PM To: elecraft@mailman.qth.net Subject: [Elecraft] The amp I would like to see Elecraft build. Once the FCC removes the 15 dB gain limitation on amateur amplifiers *Petition for Rule Making* (*RM-11767

Re: [Elecraft] The amp I would like to see Elecraft build.

an exciter with any level of drive, even less than 1 watt. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dan Baker Sent: Sunday, July 31, 2016 5:31 PM To: elecraft@mailman.qth.net Subject: [Elecraft] The amp I would like to see Elecraft

Re: [Elecraft] The amp I would like to see Elecraft build.

Then Elecraft can build us a 12 volt version of the KPA500. Heaven help us, NO! The 12V amplifiers are marginally clean enough at 100W. A 500W 12V amplifier is likely to have IMD be much poorer than -30 dB PEP. What we really need is a 48V final for the K3/K3S (maybe at 200W) so we can see

[Elecraft] The amp I would like to see Elecraft build.

Once the FCC removes the 15 dB gain limitation on amateur amplifiers *Petition for Rule Making* (*RM-11767* ) Then Elecraft can build us a 12 volt version of the KPA500. That would give us the ability to run our KX’s as a very effective mobile