It will act as a RF shield. (see: https://en.wikipedia.org/wiki/Electromagnetic_shielding )
Not a recommended way to protect yourself from strong EM waves, but it does make a good joke. Regards, Kyeong Su Shin On Tue, Nov 7, 2017 at 11:01 AM, Kevin Hung via USRP-users < usrp-users@lists.ettus.com> wrote: > Hmm, I am just curious. What does the metal hat do? > > On Mon, Nov 6, 2017 at 11:38 PM, Dan CaJacob via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> But if you want to have some fun with your co-workers. Put on a metal hat >> whenever you TX. If they ask what's going on, say "Don't worry about it" :) >> >> On Mon, Nov 6, 2017 at 4:49 PM Bakshi, Arjun via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> Thanks for clearing that up. >>> >>> >>> AB >>> ------------------------------ >>> *From:* Nick Foster <bistrom...@gmail.com> >>> *Sent:* Monday, November 6, 2017 3:58:05 PM >>> *To:* Bakshi, Arjun >>> *Cc:* usrp-users@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@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@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >> -- >> Very Respectfully, >> >> Dan CaJacob >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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