[TowerTalk] C-3 & TH7 comparison - a revision
Wed, 29 Apr 1998 10:42:58 -0400
At 11:36 PM 4/28/98 EDT, K7LXC wrote:
>Greetings, TowerTalkians --
> Recently I posted the following information:
>>>I am curious as to how well this antenna C3 or C4
>> compare to the TH7?
>TH7 typical gain (** is really TH11 **)
>20M 2.5 dBd
>C-3 typical gain
>20M 3 dBd
>10M 3 >>
> The TH7 data was in error. It is really the TH11 information. Sorry.
>Here's the REAL TH7 info:
>20M 3 dBd
>15M 5-6 dBd on bottom end of band to 1 dB at top end of band (similar to
>10M 2-3 dBd
Now let's see if I understand this -- we haul 75 pounds of aluminum up to
the top of your tower, for 3-4 dB gain over a dipole at the same height.
Or you stack two of the things, with rotors and other complexities, for
another 2 db. 6 dB = 1 S Unit. Are hams crazy or what?
Actually, what it really demonstrates is how important a dB or 2 can be,
and that the cheapest, quickest way to a better signal is to go QRO (no
73, Pete Smith N4ZR
In wild, wonderful, fairly rare WEST Virginia
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Administrative requests: towertalk-REQUEST@contesting.com