[Discuss-gnuradio] High packet error and reception problems with XCVR 2450

[udadidd]

Hi
We bought 2 USRP boards very recently and it doesn't seem to work. We have
daughter boards XCVR 2450 and vertical antennas (Black colored) VERT2450. We
also have TVRX daughter board which works properly.

We had been trying usrp_siggen.py, usrp_oscope.py on each of these. Also
digital/benchmark_tx.py and benchmark_rx.py on both of these. 

1) usrp_oscope.py doesn't give me a proper sine wave at all!

2) usrp_siggen.py or even usrp_fft.py doesnt seem to give me satisfactory
results. (I am comparing the results according to the screen shots i saw in
the web page http://staff.washington.edu/jon/gr-osx/gr-osx-usrp.html#using)

3) benchmark_tx/rx do not receive any packets though i give a transmit
amplitude of 30000 and rx-gain of 75. The transmission seems to be sending
666 packets where as i receive only total of around 60 packets on the
receiver end with ok=FALSE Always!! I get a 100% error rate.

Do you think there are any problems with the daughterboards? or the
combination of daughter board with the antennas? Kindly let me know how do i
check the functioning of the daughter boards and/or the antennas!

Kindly help
Udaya



Syed Faisal Shah wrote:
> 
> Matt,
> 
> Thanks for clarifying the matter. My colleague discussed it with you and
> we
> look forward to receive the correct antennas.
> 
> Regards
> 
> -Faisal
> 
> 
>  Just to clarify for everyone, since I get a LOT of calls about this...
>>
>>
>> The VERT2400 antenna is BLACK and made out of PLASTIC. If your "vertical
>> antenna" is copper colored, then you do NOT have a vertical antenna. What
>> you have is the RIGID COAXIAL CABLE which comes with the Quad Patch 2400
>> MHz
>> antenna. This coax needs to be soldered to the GREEN PCB with 4 squares
>> on
>> it labeled "Highgain Antennas 2.4-2.48 GHz". See the datasheet for the
>> Quad Patch antennas for more info on how to do this.
>>
>> To reiterate --
>> The VERT2400 is BLACK PLASTIC
>> The VERT900 is BLACK PLASTIC
>> The VERT400/1200 is a thin BLACK WIRE ANTENNA
>>
>>
>> The copper colored rigid line is RIGID COAXIAL CABLE. It needs to be
>> soldered to the Quad Patch 2400, Yagi 1200, or Yagi 900 GREEN PCB antenna
>> which came with it.
>>
>> Thanks,
>> Matt
>>
>>
> 
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> 
> 

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