RE: [Discuss-gnuradio] RFX900 full duplex limitations

[Per Zetterberg]

I guess the transmitter leaks into the receiver. This may be worse when the frequencies are close - multiples of 64MHz should probably be avoided.  I have also sometimes noticed that the gain of the receiver changes slightly when the transmitter is activitated. This may be no issue in many applications. My guess is that this is due to that the gain of the AD8437 slightly changes when the voltage on the board drops due to an increased power consumption.

 

 

 

BR/

Per

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From: address@hidden [mailto:address@hidden On Behalf Of Newell Jensen
Sent: den 16 december 2008 08:54
To: gnuradio mailing list
Subject: [Discuss-gnuradio] RFX900 full duplex limitations

On the pdf from ettus.com (for the RFX900 daughterboard and the like) it says that:

• Full-duplex capable (with some limitations)

Does anyone know what those limitations are or is there more specific information somewhere?
We were specifically looking at the RFX900 board.

Thanks.

--
Newell

http://www.gempillar.com
Before enlightenment: chop wood, carry water
After enlightenment: code, build circuits