= USRP2 - Front end calibration data = == Description == Characteristics of USRP's front end were measured against an RF reference: 1. Agilent ESG Vector Signal Generator (E4438C) for the USRP2's receiver [[BR]] USRP2 receiver measures the frequency and power level of known signals sent from signal generator. 2. Agilent ESA-E Series Spectrum Analyzer (E4405) for USRP's transmitter [[BR]] USRP2 transmitter sends specified signal with frequency and amplitude level that is measured by spectrum analyzer. == Set Up == == Procedures == == Data & Plots for receiver == The data file for plots are also available in the attachments. A brief description of the columns: 1. sgfrequency_in - signal generator frequency (Hz) 2. sgpower_in - signal generator power (dBm) 3. gain_in - usrp receive path gain (dBm) 4. rxfrequency_meas - usrp measured frequency (Hz) 5. rxpeakpower_meas - usrp measure power (dBm) || Node13-8 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node13-8_rx_meas.txt data] || || [[Image(node13-8_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node13-8_5.0GHz_rxpwr.png, width=500px)]] || || || || Node20-20 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node20-20_rx_meas.txt data] || || [[Image(node20-20_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node20-20_5.0GHz_rxpwr.png, width=500px)]] || || || || Node16-16 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node16-16_rx_meas.txt data] || || [[Image(node16-16_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node16-16_5.0GHz_rxpwr.png, width=500px)]] || || || || Node16-5 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node16-5_rx_meas.txt data] || || [[Image(node16-5_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node16-5_5.0GHz_rxpwr.png, width=500px)]] || || || || Node8-13 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node8-13_rx_meas.txt data] || || [[Image(node8-13_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node8-13_5.0GHz_rxpwr.png, width=500px)]] || || || || Node5-16 Receiver -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node5-16_rx_meas.txt data] || || [[Image(node5-16_2.4GHz_rxpwr.png, width=500px)]] || [[Image(node5-16_5.0GHz_rxpwr.png, width=500px)]] || || || == Data & Plots for transmitter == The data file for plots are also available in the attachments. A brief description of the columns: 1. frequency_in - usrp generated carrier frequency (Hz) 2. amplitude_in - usrp specified amplitude (dBm) 3. gain_in - usrp transmit path gain (dBm) 4. frequency_meas - spectrum analyzer measured frequency (Hz) 5. peakpower_meas - spectrum analyzer measure power (dBm) || Node13-8 Transmitter -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node13-8_tx_meas.txt data] || || [[Image(node13-8_2.4GHz_txpwr.png, width=500px)]] || [[Image(node13-8_5.0GHz_txpwr.png, width=500px)]] || || || || Node20-20 Transmitter -- [http://www.orbit-lab.org/attachment/wiki/Documentation/GNURadio/Tutorials/RFCalibData/node20-20_tx_meas.txt data] || || [[Image(node20-20_2.4GHz_txpwr.png, width=500px)]] || [[Image(node20-20_5.0GHz_txpwr.png, width=500px)]] || || ||