[AMPS] Band Pass Filtering

[Jon Ogden]

>If Jon is trying to protect his receiver, put the filter between the radio
>and the brick.  If you're trying to "clean up" the brick, I'd skip the
>filter and get your money back.

Hi Dave,

Thanks for the note.  With regards to ICE's HF filters, Mike Koss there 
told me today that older designs of their HF filters would fail at less 
than 200 Watts.  They have done some redesigns to their HF units and he 
said that now they could almost be used in 200 Watt broadcast conditions. 
 I have an ICE low pass filter for my HF amp (8KW version) and it is a 
very nice design and well constructed.

Anyhow, back to my current problem....I am trying to do two things.  
First of all, yes I am trying to protect the RX.  I do VHF rover 
contesting at least once a year and all of the radios creates some havoc! 
 So the filtering is to help there.  I also want to make sure I put out a 
clean signal.  I have a neighbor who said I was getting into his business 
band radio.  It's likely that his business band HT just has a wide front 
end and it isn't my fault.  However, I want to be sure and have the 
filter in place so that I can say that the problem isn't due to me.  I 
would like to put out the best signal possible.  I am confident that the 
filter would handle SSB after the amp.  My only other question is if it 
would handle CW (CW as in the mode, not keydown).  But perhaps for what I 
want to do it doesn't make any difference where I put it.

73,

Jon
KE9NA


-------------------------------------
The Second Amendment is NOT about duck hunting!

Jon Ogden
KE9NA

http://www.qsl.net/ke9na 

"A life lived in fear is a life half lived."


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