[hpsdr] ALEX - Input protection

[Graham Haddock]

Ray Anderson wrote:
>
>> Graham-
>>
>> Also see the following message posted in March 2007 on the subject by
>> Achim, DH2VA.  
>>
>> http://lists.hpsdr.org/htdig.cgi/hpsdr-hpsdr.org/2007-March/003847.html
>>
>>
>>
>> -Ray   WB6TPU
>>
>> ___
Ray:

Thanks for the reminder.  I think this would work great as a suppressor 
for a ham band receiver,
but this suppressor will trend towards a very low impedance below 500 
kHz, as you get below
the design frequency of the transformer.  I am leaning toward the ProTek 
suppressors. They are
a low voltage bidirectional diode array in a single package about the 
size of an 0805 chip cap.

--- Graham

==

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