K1DEU
160 ft Rohn 45g Tower
Premium
join:2007-10-30
Stamford, VT
edit:
October 4th, @07:58PM
| Converting less expensive 2.4 GHz Grids to 1.9 MHz Grids
This applies for the Parabolic Grids that measure 39 wide by 23 1/2 inches assembled. I purchased the very expensive Andrew/CommScope 26T model 26T-1900F.
like »awapps.commscope.com/catalog/pro···id=6478#
Andrew uses the same grid reflector and driven element dipole inside black PVC in all three of their models the T-2400, T127 and T1900 with grid slot spacing of just over 3/4 inches in all models. The only difference is that in their lowest frequency T-1900 1.7 -2.1 GHz model they include a plastic spacer that spaces out the small aluminum 3 slot reflector at the focal point a additional 1/2 inch from the driven element for lower S.W.R. The spacer is notched at each end to keep the reflector parallel to the driven element. I would just use all temperature glue and a longer sheet metal screw with any insulated spacer.
The 2.4 GHz (Wi-Fi frequency) Parabolic Grid antennas are much cheaper being manufactured and sold in very large quantities. Many sellers carry these similar looking grid antennas
Regards John
--
»www.spiritualpeaceproject.com |
