[USRP-users] TX power levels. Long term exposure.

Nick Foster bistromath at gmail.com
Mon Nov 6 15:58:05 EST 2017


Don't worry about it. You are several orders of magnitude below any sort of
permissible exposure limit.

Nick

On Mon, Nov 6, 2017 at 11:21 AM Bakshi, Arjun via USRP-users <
usrp-users at lists.ettus.com> wrote:

> I'm looking to do long duration experiments in a lab which will have
> people in it while I TX and Rx, and I'd like to know what health and safety
> concerns I should keep in mind.
>
>
> I tried looking at FCC and EU for limits on radiation levels, but those
> specs aren't straightforward to understand. It's also difficult to get an
> estimate of absolute power rxed/txed from the USRPs. So I'd like to hear
> from anyone who knows about this stuff.
>
>
> I'm using SBX (max power 100mW), and I'm thinking of using either the
> 500-700MHz or the 1.2-1.3 GHz band. I'll be transmitting for *5ms every
> second for a few hours*. The room is about 6m x 15m. Then antennas will
> be 1-2 meters away from a few people. TX and RX are about 4m apart. With
> gain set to 25dB, my signal has ~30dB SNR.
>
>
> Sorry if this seems a bit odd/specific.
>
>
> Thank you,
>
>
> AB
>
>
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>
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