| Author |
Message |
    
RCI2990
| | Posted on Sunday, May 12, 2002 - 4:18 pm: | 
|
ive always wondered what the bandwidth of the quads they make is? I mean how far above and below the reg 40 will they go before the SWR goves about a 2-1 SWR?
Ive always wondered that. My rakers can go well below and above the reg 40 before they even go abouve a 1.7-1 swr. |
bruce
| | Posted on Sunday, May 12, 2002 - 7:54 pm: |
|
Hey ! rci2990 this guy has a link to building one now his is on 15 meters and he clames 300 khz BW which would be 500 khz at cb for 1.6:1. Well its free information not real tech stuff but nicly done even tossed in a photo.
bruce
http://www.qsl.net/iz7ath/web/02_brew/01_quad/english/pag03_eng.htm
|
bullet/151 southern Indiana
| | Posted on Monday, May 13, 2002 - 12:45 pm: |
|
wabbit,
thier info package says all 40 chls for cb and from 28.00-28.70 mhz for 10 meters.
you should be able to use them 40+ ,reg 40,40-
give or take a few chls and be under 2:1 swr.
mine has more band width than i use any way but you can always buy a good tuner to further your range if needed.(skip the cheap cb types)
73's
bullet |
DeadlyEyes
| | Posted on Saturday, June 08, 2002 - 12:34 am: |
|
One of the reasons that a Quad Type antenna has a bigger gain is the pattern the signal is radiated from the antenna. Using a quarter wave ground plane antenna you radiate your signal in a circular fashion.
However in a quad antenna you radiate your signal broadside to the plane of the antenna with most of the signal power being transmitted in two big lobes.
This focus of transmitted signal causes a better gain over that of the standard utility gain ground plane antenna. |
