View Full Version : BulletM Minimum TX Power
Aveyer
08-15-2009, 02:31 PM
Hey all, Researching on the new Bullet M for the future, whats the minimum TX power that can be set in the BulletM2HP and BulletM5HP?
Thanks.
Aveyer
08-15-2009, 08:14 PM
Can it be reduced any further (say down to3dbm) in the config file?
Aveyer
08-15-2009, 08:33 PM
Maybe Mike could help here :) . The reason I'd need it so low is to stay under the regulatory limit and use the highest gain antenna possible.
HUH? What regulatory limit are you talking about???
Aveyer
08-15-2009, 10:07 PM
In my country the EIRP limit for 5GHz is 2 watts (33.01dbm), so what I was planning on doing if setting up a link is setting the BulletM5HP's TX power to 3dbm and use a 30dbi grid (33dbm=1995MilliWatts), gives better performance, narrower beamwidth and less interference than using lower gain antennas and higher TX power.
UBNT-Mike.Ford
08-16-2009, 10:58 AM
Can it be reduced any further (say down to3dbm) in the config file?
Hello,
No this is not possible.
Thanks,
Mike
jp498
08-17-2009, 10:11 AM
If this product eventually is usable in the 5.4ghz US band, it will be important to be able to lower the power way down. Otherwise, we won't be able to use highly directional antennas in that band due to the low EIRP allowed.
Aveyer
08-20-2009, 06:20 PM
Could it be added to a future firmware to be able to set TX power as low as 2 or 3dbm on the Bullet M and Rocket M?
Thanks.
we won't be able to use highly directional antennas in that band due to the low EIRP allowed.Test question: What is the low EIRP you are thinking of?
UBNT-Edmundas
08-21-2009, 02:33 AM
Could it be added to a future firmware to be able to set TX power as low as 2 or 3dbm on the Bullet M and Rocket M?
Thanks.
No. Radio has physical transmit power amplifier and it do not let to lower transmit power bellow power offset value on driver side. Minimal TX power is equal to radio power offset.