Using the Power Measurement Functions to make Transmitter Measurements

The power menu provides several powerful transmitter measurement functions that are easy to use. The measurements include:

•Occupied Bandwidth

•Adjacent Channel Power Ratio

•Channel Power

These transmitter power measurements can be used to measure analog and continuous carrier digital radios. The transmitted signal can be tones, noise, or a combination of tones and noise, without affecting the measurement accuracy. The power is measured in an rms way, so that power and power ratio values are consistent with power meter results.

The signal or signals being measured should be displayed before activating the measurement. The spectrum-analyzer center frequency should be set to the carrier frequency and the reference level should be set so that the signal is near the top graticule. A power measurement may require the user to enter the channel spacing and/or channel bandwidth before activating the function.

The spectrum analyzer automatically selects all of the other settings for accurate and efficient measurements. There is also a manual mode where the user selects all of the spectrum-analyzer settings. The manual mode should be used carefully since it has limitations and requirements that are necessary to ensure the measurement is accurate.

Power. measurements are made continuously, updating at the end of each sweep. This allows you to make adjustments and see changes as they happen. They can also be made on a single sweep, providing time to study or record the data.

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