[Elecraft] Transceiver Test Bed at W3LPL

[donovanf at starpower.net]

Hi Barry, 


Good ideas. It will be an interesting challenge to eek out the best possible 
performance from each radio-under-test. We'll learn a lot. 


tks 


73 
Frank 
W3LPL 

----- Original Message -----

From: "Barry" <barrylazar2 at gmail.com> 
To: donovanf at starpower.net, elecraft at mailman.qth.net 
Sent: Tuesday, March 31, 2020 7:49:50 PM 
Subject: Re[2]: [Elecraft] Transceiver Test Bed at W3LPL 

Frank, 
I can't speak to the other radios, but you do need to fiddle the 
values of the AGC on the K3s to get the best out of the radios. I think 
the defaults are just to see if the radio works or is where it was left 
while undergoing QC at Elecraft. 

BTW: I'm glad one of us is doing something worthwhile. ;-) 

73, 
Barry 
K3NDM 

------ Original Message ------ 
From: donovanf at starpower.net 
To: elecraft at mailman.qth.net 
Sent: 3/31/2020 3:39:44 PM 
Subject: Re: [Elecraft] Transceiver Test Bed at W3LPL 

>Hi Jim, 
> 
> 
>Very good ideas! I'll also use my FTdx5000s as QRM radios and 
>also try the K3s to see if the there is a measurable difference 
>in QRM 
> 
> 
>tks 
> 
> 
>73 
>Frank 
>W3LPL 
> 
>----- Original Message ----- 
> 
>From: "Jim Brown" <jim at audiosystemsgroup.com> 
>To: elecraft at mailman.qth.net 
>Sent: Tuesday, March 31, 2020 7:31:10 PM 
>Subject: Re: [Elecraft] Transceiver Test Bed at W3LPL 
> 
>On 3/31/2020 10:44 AM, donovanf at starpower.net wrote: 
>> I welcome constructive comments about my test bed, test procedures and 
>> results. 
> 
>Hi Frank, 
> 
>A worthwhile experiment. Suggestions. Use dirtier QRM rigs. Low cost 
>(less than FTDX5000) Yaesu rigs have lots of RF IMD on SSB, even when 
>not badly adjusted. W4TV has documented the cause(s) of this within the 
>radios. Also, set both QRM rigs and intended signal rigs for relatively 
>high distortion audio. Also try intended signal rig with no low-cut EQ, 
>no HF boost. 
> 
>73, Jim K9YC 
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