[Premium-Rx] Re: Ten-Tec RX-340 ??

[Ka9p at aol.com]

I'm really enjoying reading this thread.

Could someone maybe explain the likely basis for the difference in the SAM 
performance between the HF1000A and RX-340?

After reading the string of posts, since I had the two set up in a comparison 
mode on the same antennas, I wandered away from the standard SWBC fair I 
usually listen to (and I still don't think the 340 SAM is bad for that) and looked 
around for some weak AM stuff, and settled in on the 75 meter DX-60 net this 
morning.  What I found kinda surprised me.

The 340 required about 7 to 10 dbm above the noise level for SAM lock-up, 
while  the WJ remained locked virtually all the time the carrier rose above the 
noise. 

And as various weak AM stations came on, the WJ would take a few seconds but 
lock on them when they were as much as 800 to 900 hertz high or low.  The 340 
refused to lock on anything more than 300 hertz away.  The same results were 
obtained on the 50 KW station on AM1000 about 1.5 miles from here. 

Is this just a difference in algorithm, or is there something in the overall 
design approach/philosophy that contributes to this much difference?

And thanks for the link to the Grayland pictures  ("Honey, come look at this, 
we're not so out of control here, are we ?" )

Thanks for any enlightenment, 

Scott

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