On 10/11/2010 01:34 PM, Jorge Miguel wrote:
Hi everybody!
I read a lot of posts about XCVR2450 and I am still confused about its
performance.
I would like to set up a pulse doppler radar application around 2.4 GHz
with USRP2 + XCVR2450
My simple questions are:
Does XCVR2450 work in full duplex mode?
If yes: Does anybody know the
isolation between tx and rx (Whole daughter board:
transceiver,amplifier and RF switch) ?
If not: Does anybody know the time that XCVR2450 takes to switch from
tx to rx state ?
Many thanks in advance,
Jorge.
The XCVR2450 suports same-frequency full-duplex, which would be perfect
for radar applications. It uses a MAX2829 802.11 world-band
transceiver chip, which has only a single VFO in it, so the RX and TX
sides have to be on the same frequency.
The TX/RX isolation, based on reading the spec sheet for the switch, a
HWS383, gives 29.5dB isolation for the 2.4Ghz range, and about
20.5dB isolation for the 5GHz side.
I suspect that your application will be just fine on this card, using
full-duplex, same-frequency mode.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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