Lee Hickok wrote:
> Roger, while you and JB duke it out, mind dropping some pearls of
> wisdom my way? I see yagis and parabolics, 16 dBi or so, for around
> $40. Is that the way to go? Which end? Or both? I understand I need a
> RP TNC Male (Reverse Polarity) into the WRT54G and a RP SMA Male
> (Reverse Polarity) into the WMP 54G. What coax do I need for 10' and
> 15' to the antennae? Is there stuff off the shelf? Many thanks.
Parabolic antennas are usually very high gain (there are exceptions of
course) and yagis work just fine. But for ease of handling, mounting and
appearance, I'd go with panel antennas. If you're not used to them,
think of them as little gray plastic pizza boxes. Look at
www.fab-corp.com for some ideas.
The connection between the radio and the antenna should be kept as short
as possible because signal loss gets worse with the length of the coax
cable. As much as possible, make the connection between the computer and
the radio reach as close to the antenna as you can. That won't hurt the
signal. It's the length of cable between the radio and the antenna that
can cause problems. I'd use nothing less than LMR240 coax but I'd prefer
LMR400 cable for this type of connection.
I'd prefer to use a panel antenna at each end of the connection. This
narrows the signal down instead of spreading it out 360*. For a distance
of 210' I wouldn't think you'd need a really stong antenna, but I'm not
familiar with your particular radios. At the present I'm using a 9dbi
antenna to connect to my access point that's at about two miles away.
I've used 19dbi and 13dbi antennas here and can't really tell any
performance difference, but the 9dbi is much smaller and easier to work
with.
--
The one time I thought it might be a good idea for Ed Williams to pop up
he doesn't show.