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

Arjun Bakshi bakshi.11 at buckeyemail.osu.edu
Fri Nov 10 14:04:05 EST 2017


Wanted to further clarify something. Do you mean that a usrp will in most cases stay below acceptable levels, or that my specific setup is safe?

Like TX at 520mhz makes the snr much higher compared to that at 1.2GHz.

Thanks

AB

---- Bakshi, Arjun wrote ----

><!-- P {margin-top:0;margin-bottom:0;} --> 
>
>Thanks for clearing that up.
>
>
>AB
>
>From: Nick Foster <bistromath at gmail.com>
>Sent: Monday, November 6, 2017 3:58:05 PM
>To: Bakshi, Arjun
>Cc: usrp-users at lists.ettus.com
>Subject: Re: [USRP-users] TX power levels. Long term exposure. 
>
> 
>
>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
>
>
>
>_______________________________________________
>USRP-users mailing list
>USRP-users at lists.ettus.com
>http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20171110/1816c227/attachment-0002.html>


More information about the USRP-users mailing list