View Single Post
  #18   Report Post  
Old May 5th 07, 04:30 AM posted to rec.radio.cb
Frank Gilliland Frank Gilliland is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 432
Default Hey Antenna Gurus !

On 4 May 2007 16:17:09 -0700, Telspam Electronics
wrote in
. com:

On May 4, 5:44 pm, Frank Gilliland wrote:
Not really. Insertion loss of a [ferrite] balun could negate any gain
you may get by impedance matching. It is also fixed, while a coax stub
can be easily 'retuned' by simply pinning the coax. Not only that,
since the antenna is (hopefully) way up in the air, the coax used for
matching is either incorporated in the line or hung from the side,
making any worries about extra coax "kicking around" a non-issue. You
should be more worried about where you're going to put that nine
square feet of ground plane.


Pure rubbish... a balun would have perhaps 0.1dB insertion loss. The
antenna gain is perhaps twenty times that!



"LOL!"