On Tue, Jul 19, 2011 at 11:20 AM, Josh Blum <j...@ettus.com> wrote: > > > On 07/19/2011 07:37 AM, Eng.Ziedan wrote: >> Dear all >> i have a usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi >> card to the rfx2400 TX/RX port >> i want to pass the stream from the wifi card to the rfx2400 then to the wbx >> to transmit it over the UHF band >> how could i do that ?? >> here is the connection i have created (attached) >> please help me as fast as you can >> thanks >> > > The WBX and RFX TX/RX antenna port is not full-duplex. Perhaps you want > a diplexer for your wifi card. > > From the docs: > > The user may set the receive antenna to be TX/RX or RX2. However, when > using an WBX board in full-duplex mode, the receive antenna will always > be set to RX2, regardless of the settings. > > http://www.ettus.com/uhd_docs/manual/html/dboards.html#wbx-series >
Also, in direct-cabled applications it is good practice to include attenuation between the transmitting device and receiving device. Many commercial wifi cards output 100mW (20dBm) which can damage a WBX. We recommend limiting the WBX input power to -10dBm or less. Jason _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
