I live 4.5 miles from the closest node and the 2nd closest node is 6.5 miles away and am just off center of the two. i built a 5 element beam and it was great for analog systems in the next county but no help locally. I could null the data channel some but not even to stop the multipath problem.
With a portable GRE PSR-500 I was getting frustrated as 50 to 70% packet loss on a 800 quarterwave and the elevated quarter wave and stock antennawas worse. The best antenna was larsen yellow tip 150mhz 10 inch koolduck it worked vhf and 800 adequately but was still 30 to 40% packet loss on P25.
THE BEST SOLUTION (for me)
If the pringles can works on 2.4 GHZ then a 6 to 7 inch coffee can should work on 800 MHZ. Separate a RG-58 for 3.5 inches... drill a hole in the can 3.5 inches from the bottom along the side. I used the seam insert the 3.5 inch center of the coax with the clear insulation still on it take the braided side and SOLDER a 1 inch piece of it to the can (2.5 inches can be discarded. This is a super corner reflector directional antenna or a quasi wave guide that will HELP shield any signals coming in from the side. ITS NOT PERFECT But Im in the 95% copy mode right now and actually able to hear completed messages on my PSR-500. As a bonus I can still copy the analog statewide system. Not perfect but a near free compromises that is working.............Have to use a 2nd conventional scanner for the 450 and below stuff..
With a portable GRE PSR-500 I was getting frustrated as 50 to 70% packet loss on a 800 quarterwave and the elevated quarter wave and stock antennawas worse. The best antenna was larsen yellow tip 150mhz 10 inch koolduck it worked vhf and 800 adequately but was still 30 to 40% packet loss on P25.
THE BEST SOLUTION (for me)
If the pringles can works on 2.4 GHZ then a 6 to 7 inch coffee can should work on 800 MHZ. Separate a RG-58 for 3.5 inches... drill a hole in the can 3.5 inches from the bottom along the side. I used the seam insert the 3.5 inch center of the coax with the clear insulation still on it take the braided side and SOLDER a 1 inch piece of it to the can (2.5 inches can be discarded. This is a super corner reflector directional antenna or a quasi wave guide that will HELP shield any signals coming in from the side. ITS NOT PERFECT But Im in the 95% copy mode right now and actually able to hear completed messages on my PSR-500. As a bonus I can still copy the analog statewide system. Not perfect but a near free compromises that is working.............Have to use a 2nd conventional scanner for the 450 and below stuff..
A possible solution to P25 simulcast reception
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