[TowerTalk] Re: Coax Discussions

Curtis, David B david.b.curtis@intel.com
Wed, 12 Apr 2000 16:53:39 -0700


> (1) The gain does not need to be excessive, just the lowest NF you can get


actually... if what you want is the lowest overall system NF, it is very
easy to make the first pre-amp TOO low and actually degrade overall system
NF.  VERY non-intuitive.  I can't remember the formula exactly but system NF
= sqrt(NF1^2 + NF2^2) or some such....

---------

Personally, I'm in the K6LL camp on this thread.

73, Dave N6NZ


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm