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Re: [Discuss-gnuradio] What does access code in benchmark_tx.py do?

From: Hoo-chang Shin
Subject: Re: [Discuss-gnuradio] What does access code in benchmark_tx.py do?
Date: Thu, 7 Aug 2008 00:04:34 -0700 (PDT)


after you have changed the 'packet_utils.py' in the gnuradio folder, you should

../make install

it again to see the change.

Hoo Chang.

----- Original Message ----
From: call5_99 <address@hidden>
To: address@hidden
Sent: Wednesday, August 6, 2008 8:07:58 PM
Subject: [Discuss-gnuradio] What does access code in benchmark_tx.py do?

       I was trying to send and receive packets with the programs
benchmark_tx and benchmark_rx. I have two USRP connected to two different
computers. My current understanding is, that access code is for
synchronization.  I changed the default access code completely on the
transmitter side from the file, packet_utils.py, whereas I didn't change the
default access code on receiver side. However, I am still able to receive
the packets sent by the transmitter correctly on the receiving side! So my
questions are-

1) Why is nothing affected when the access code is not the same on
transmitting and receiving side? 
2) Since the synchronization was not affected when I changed the access
code, how exactly is synchronization happening in benchmark_tx.py and

Thank you.

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