[1000mp] IMD improvement ALC ???

Red, K1DEU [email protected]
Tue, 16 Apr 2002 18:15:35 -0400


Ed and others; How about devising a real world SSB measurement for off 
chanel crud when modulating with a wide bandwidth Human Voice.

I don't have any faith in rewiews using two tones for off chanel racket. 
I have seen many modern ALC circuits completly  fall apart when hit with 
an real composite, human voice.

The shot noise produced off chanel with  initial audio attack can be 
terrible with most supposed " good "  ALC circuits.

Notice my comments " No ALC might be better on SSB Transmit " about half 
way down the page.

I almost conclude reviews only cover CW, then again klick, klick ??

73  Red, K1DEU, PHD EE

http://www.hamelectronics.com/k1deu/pages/ham/projects/ft-1k/ft-1k_index.html

http://www.mozilla.org/

Hare,Ed, W1RFI wrote:
> Interesting. 
> 
> On the next rig that comes through for Product Review, I will see if we can
> look at the 20 M IMD at different power levels. It might prove to be of
> interest.
> 
> 73, 
> Ed Hare, W1RFI
> ARRL Lab
> 225 Main St
> Newington, CT 06111
> Tel: 860-594-0318
> Internet: [email protected]
> Web: http://www.arrl.org/tis