Re: calculation of the real transmitted signal power if --tx-amplitidue is set dynamically


#1

----- Forwarded Message ----
From: Bill S. removed_email_address@domain.invalid
To: Matt E. removed_email_address@domain.invalid
Sent: Friday, January 30, 2009 5:39:18 PM
Subject: Re: [Discuss-gnuradio] calculation of the real transmitted
signal power if --tx-amplitidue is set dynamically


From: Matt E. removed_email_address@domain.invalid
To: Bill S. removed_email_address@domain.invalid
Cc: removed_email_address@domain.invalid
Sent: Friday, January 30, 2009 12:54:11 PM
Subject: Re: [Discuss-gnuradio] calculation of the real transmitted
signal power if --tx-amplitidue is set dynamically

Bill S. wrote:

Hello, all!

We are using RFX2400 to transmit some signals. As known, transmit power of that board is said to be 50mW shown on the datasheet and the default value of --tx-amplitude in benchmark_tx.py file is 12000. Can we say the real transmitted signal power is 50mW which is correspoding to 12000 for --tx-amplitude? Is the transmitted signal power changing with the parameter --tx-amplitude linearly? Could any friend give me a hint? Thanks a lot!!!

Like any transmitter, the power out will vary depending on many factors,
like the exact frequency and board and component tolerances. If you
really care about the exact power, you’ll need to measure it.

Matt

Thanks Matt. We will test the transmitted power via oscilloscope!

Bill