[Elecraft] KXPA100 SSB Distortion

Don Wilhelm's advice on this is "spot on" For the Elecraft or any transceiver, get back to basics and do your testing.. Eliminate all connections to computers or other stuff. Check out the radio - then when all is well - add back the other things. A dummy load can be a ham's best friend. Jim -

Re: [Elecraft] KXPA100 SSB Distortion

Ray, Do you have a dummy load and another receiver? If so, connect the dummy load to the KXPA100 and put a short antenna wire on the other receiver. Transmit, and adjust the distance between the dummy load and the other receiver "antenna" to produce an S-9 signal. Does the KXPA100 produce a

Re: [Elecraft] KXPA100 SSB Distortion

I also had some distorted audio reports on my transmitted SSB signal when I first got my K3.  I finally narrowed it down to the fact that I had it connected to my computer (RS-232 for sure and I might have been feeding the receive audio into the computer sound card as well).   I made a K3

[Elecraft] KXPA100 SSB Distortion

Can you describe your antenna(s) and feedline? John KK9A Ray W2RS wrote: My KXPA100 transmits distorted audio on SSB, but works normally on CW and RTTY. With 100 watts output, drain current is 11.7 A and supply voltage is 13.1 V, down from 13.7 V on receive. My power supply is a pre-MFJ

Re: [Elecraft] KXPA100 SSB Distortion

Ray, Do you have a dummy load and another receiver? Borrow the receiver if necessary. You can't tell much by the KX3 monitor. Connect the dummy load to the ANT jack and connect a short wire to the other receiver. Place that wire far enough away from the dummy load to obtain about an S-9

Re: [Elecraft] Elecraft Digest, Vol 168, Issue 25

I spoke with Elecraft at the International DX Convention and it did not sound promising that a kit version would be produced.  A kit is not totally out of the question but due to burn in  and other issues the question is can a kit be marketed at a lower price point that an assembled amplifier. 

Re: [Elecraft] K3: Adjusting SSB modulation for proper PEP rating

Thanks, Don, as I suspected (kind of). Of course in CW PEP=carrier power and makes sense. I never really *asked* this question before as I always had nice reports on my SSB. Gives me confidence running my new *expensive* LDMOS kilowatt amps on 144 and 1296 plus my old-school 16 NLA

Re: [Elecraft] KXPA100 SSB Distortion

Hi Kurt, It's hard to tell because the monitor plays the KX3 audio, which is good. Tnx, Ray -Original Message- From: Kurt Cramer To: rsoifer1 Cc: elecraft Sent: Mon, Apr 23, 2018 8:58 am Subject: Re: [Elecraft]

Re: [Elecraft] KXPA100 SSB Distortion

Does it work correctly into a dummy load. It sounds like RF in the audio, 73 Kurt W7QHD > On Apr 23, 2018, at 8:32 AM, Ray W2RS via Elecraft > wrote: > > > My KXPA100 transmits distorted audio on SSB, but works normally on CW and > RTTY. With 100 watts output,

[Elecraft] KXPA100 SSB Distortion

My KXPA100 transmits distorted audio on SSB, but works normally on CW and RTTY. With 100 watts output, drain current is 11.7 A and supply voltage is 13.1 V, down from 13.7 V on receive. My power supply is a pre-MFJ Astron RS-35A. The KX3 with which I drive it operates normally on all bands

Re: [Elecraft] Packing Peanuts Are Of the Devil!

Folks, this thread was forcefully closed last week. Please, no more peanuts :-) 73, Eric Moderator etc. elecraft.com _..._ > On Apr 22, 2018, at 11:49 PM, Jim Brown wrote: > >> On 4/19/2018 1:34 PM, Tim N9PUZ wrote: >> If packing material you don't happen to like is

Re: [Elecraft] WTB: Loaded KX3

Hi all, still looking for KX3 but... I got several scamming emails upon my WTB post! So be careful guys when you are looking for anything over the ham radio classifieds lists worldwide!!! 73 - Petr, OK1RP - http://ok1rp.blogspot.com -- Sent from: http://elecraft.365791.n2.nabble.com/

Re: [Elecraft] K3: Adjusting SSB modulation for proper PEP rating

Ed, The power you request with the power knob is the PEP level that the K3 will control. That is regardless of mode. The K3 compensates for the mode automatically. The same should be true of the transverter output. 73, Don W3FPR On 4/23/2018 4:56 AM, Edward R Cole wrote: Since the K3

[Elecraft] K3: Adjusting SSB modulation for proper PEP rating

Since the K3 operates so differently (than traditional radios) for proper modulation I thought I'd ask this: In olden days amplifiers were rated in PEP typically as 2x average (or CW) power, so for AM one had to set carrier at 1/4 full carrier output to stay linear. (1/2 carrier for SSB).

Re: [Elecraft] Packing Peanuts Are Of the Devil!

On 4/19/2018 1:34 PM, Tim N9PUZ wrote: If packing material you don't happen to like is the worst thing that happened to you today then it was a pretty fine day overall. Try chasing a big box full of packing peanuts that the wind has blown over 8 acres of mountainous ground and have the balls