" W4NNG" wrote in
:

Hello everyone

Like Mike, I also have the MFJ-1800. And boy was I
surprised when none of my shack full of type N to SMA
adapters didn't work. I can't believe they reversed the
polarity of the center pins for WIFI SMA connectors.
Urrrrgh !!!

The router discussion is interesting I need to keep it
simple. Of my various goals one of them is to passively
receive signals. At least at my level of knowledge it
will be best if the computer links directly to the adapter.

Haven't had the chance to look around but I do like the
Ethernet cable up the tower suggestion. Is there a
particularly good adapter for doing this?




"amdx" wrote in message
...

" W4NNG" wrote in message
...
Hello fellow HRO's

I've got a 50ft tower w/ rotor. Been thinking mounting
a 2.4 Ghz WiFi antenna on the rotor to see what it picks
up in way of WAP / WLAN's

To get around cable loss problem was going to put a USB
adapter at antenna then run USB cable up tower. Have
tested USB at ~ 5X it's spec'd range but
suspect the 60 - 70' run will be way too long.

Anyone know of a way to 'remodulate' so to speak to 802.11
wirelessly link the output from the antenna mounted
adapter back to computer?

Thanks for any thoughts
http://www.youtube.com/watch?v=08eVqpPVGiU

Video instructions on a cheap linksys hack.
This would be work but CHEAP CHEAP.


Bob

W4NNG


Hi Bob,
I have done something similar to what you want to do. I
picked up MFJs yagi
antenna MFJ-1800
http://www.mfjenterprises.com/man/pdf/MFJ-1800.pdf
and a $13.00 wireless USB adapter. I adapted an N connector
to the wireless USB adapter.
(a little troublesome, large connector, small adapter) I
then connected the N connector/adapter assy
to the yagi. I mounted the whole thing in a 4" pvc pipe. I
purchased two 15 ft USB male to female cords.
I found I had intermitent performance, The problem was 30
ft of USB cords,
I cut back to one 15ft cord
and the ass'y works wonderfully. I can see over 20 wifi
signals from where I'm at, only 3 to 4 are strong
signals (over 50%, whatever that means). While trying to
solve the intermitent performance I did find
there are cords available with amplifiers built inline to
extend the usable USB cable length. I did not try
these I just moved my yagi. The others are way ahead of my
knowledge regarding the wireless router and
it's operation on top of your tower.
Mike