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Re: [Discuss-gnuradio] RFX900 Filters

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] RFX900 Filters
Date: Fri, 18 Apr 2008 09:44:58 -0700
User-agent: Thunderbird (X11/20080226)

Wireless Monster wrote:
Hi all,

Does anybody know if the ISM filter on the RFX900 board affects both the Rx and Tx paths or only the Rx?
Is there a easy way to disable it?

The filter affects both TX and RX, but not the auxiliary RX path (RX2). If you just want to receive, use the 2nd SMA port and make sure to set that in the software. If you want to bypass the filter for transmit, you will need to put a cap of about 50 to 200 pF in the path, and cut the traces to the filter.


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