Yes the power budget stays the same and balanced it the TX power can also be increased on both ends. The one factor to consider however, is that as the gain of an antenna increase, typically the beam width decreases. So that may actually work in your favor because you are limiting the areas for which you can receive noise. Lower noise will increase your SNR and performance even if the signal levels stay the same. This factor is one of the reasons the RF elements horns show such an increase in performance for operators. It’s not any increase in power or antenna gain (in fact in many cases antenna gain is lower) it’s the rejection of unwanted signals because their antenna pattern is so tight and the front to back ratio is so good. Most links using their antennas tend to increase the SNR performance which in the end is all that matters.
Thank you, Brian Webster www.wirelessmapping.com From: AF [mailto:af-boun...@af.afmug.com] On Behalf Of Daniel White Sent: Friday, June 12, 2020 1:54 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Antenna gain vs transmit power You also assuming the CPE is in the main lobe (and that lobe shape isn't different between the sectors). Antenna Gain > TX Power Gain. Not only because it is bi-directional but there are plenty of benefits to increasing antenna gain and not TX power. But as Adam said... a dB is a dB photograph <https://atheral.co/wp-content/uploads/Atheral-Logo-Vertical-Grad-150px-x-86px.png> Daniel White Co-Founder & Managing Director of Operations phone: +1 (702) 470-2770 direct: +1 (702) 470-2766 Adam Moffett wrote on 6/12/20 11:22: A db is a db, but an antenna works in both directions and tx power only works in the tx direction. So they'll perform the same in one direction only. On 6/12/2020 1:20 PM, Josh wrote: If you have two ptmp antennas with the same sector width and same model ap attached to them, and one antenna is 4 db less gain then the other. If additional 4db of transmit power is applied to the lower gain antenna, would the two sectors perform roughly the same? Is one db of radio transmit power truly equivalent 1 db of antenna gain, or is there more to it? Josh Heide Operations Manager 209-838-1221 | <http://velociter.net/> velociter.net <mailto:j...@velociter.net> j...@velociter.net 1525 2nd Street, Escalon, CA 95320
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