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Is it safe to connect TX and RX antennas close to a USRP B200 and transmit at 10dBm?

LT
Luca Torres
Sun, Mar 9, 2025 9:42 PM

Hello friends,

I have been using 2x B200 devices connected together using cables and 30dB attenuators as recommended, to avoid damaging the receivers on each device. This works great.

Now I would like to make the connection wirelessly, that is attach TX and RX antennas directly to each B200 device. (This type https://www.ettus.com/all-products/vert2450/).

My question is: Is it safe to have a TX antenna transmitting +10dBm right next to an RX antenna?

The documentation says "RX power -15 dBm max", and I am concerned having a TX antenna so close to an RX antenna will cause the TX power to enter the RX circuitry and damage it. Now, I've seen photos of people doing this, so I'm kind of unsure about it. I can always attach an attenuator to the RX input if it is needed.

thank you very much,
Luca

Hello friends, I have been using 2x B200 devices connected together using cables and 30dB attenuators as recommended, to avoid damaging the receivers on each device. This works great. Now I would like to make the connection wirelessly, that is attach TX and RX antennas directly to each B200 device. (This type https://www.ettus.com/all-products/vert2450/). My question is: Is it safe to have a TX antenna transmitting +10dBm right next to an RX antenna? The documentation says "RX power -15 dBm max", and I am concerned having a TX antenna so close to an RX antenna will cause the TX power to enter the RX circuitry and damage it. Now, I've seen photos of people doing this, so I'm kind of unsure about it. I can always attach an attenuator to the RX input if it is needed. thank you very much, Luca