3 ms·
To reiterate (because although I had the same thought as you it took me a moment to realize what you meant), OP is measuring the wrong thing for multi-user scen
by colanderman 12y ago
To reiterate (because although I had the same thought as you it took me a moment to realize what you meant), OP is measuring the wrong thing for multi-user scenarios. Losing 10 ft from 1000 ft radius due to a 20% power loss might sound inconsequential (only 1%, right?), until you realize that's ~31,000 ft². That's ¾ acre, or 20% of your users. Nothing to sneeze at.
- ghshephard 12y agoIn my scenario, I'm saying the addition of a diplexor (in this case, a single antenna port to serve both 900 MHz, and 2.5Ghz, so the signal was split to two RF chips - about 3 dB of loss) - the typical distance at 0.1% BER, with the exact same antenna gain, Free Space Loss, LMR400 loss, etc.. dropped from 8 km radius in all directions down to a little over 4 km radius.
- mungoman2 12y agoHow do you get 20%? The area difference between a circle with a radius of 1000 vs 990 is 2%.
- colanderman 12y agoOh shit, you're right. I used 900 instead of 990. That's what I get for doing math at midnight. Too late to edit it now.