[Elecraft] Transceiver Test Bed at W3LPL

[donovanf at starpower.net]

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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