Agilent Technologies, Inc. 85710A Digital Radio Personality
Ensure quality transmission on your digital-radio system by using dedicated measurement personalities for HP portable spectrum analyzers. They make it simple to characterize spectral occupancy on microwave terrestrial links.
The HP 8570A digital-radio personality adds mask-comparison, frequency-response, and transient-analysis capabilities to the high-performance HP 8562A and HP 8563A portable microwave spectrum analyzers.This personality allows these digital radio mesurements to be made with single keystrokes.
Built-in Agency Masks
Are the spectral occupancy and filter response of your digital-radio transmitter within regulatory-agency specifications? Find out quickly by using a built-in agency mask. Five major agency masks are available for easy testing to FCC, UK, FRG digital-radio specifications.
Create Custom Masks
Do you need a custom mask? Use the front panel to create one to meet YOUR requirements. Tailor specifiic threshole\d Limits. Limit lines on the HP 85710A are adaptive-- they can change as the reference level, center frequency and span are altered. Masks may be wither realative or absolute. Relative masks referrnce the top of the mask to the peak of the modulated signal. Store up to 12 user-defined masks in the HP 85710A.
Compare to Mask Measurement
This powerful function makes an automatic mean-power level measurement and compares the result to the masks limits. A pass/fail message indicates whether the signal meets specifications. If the comparison fails the masks limits, the marker will be positioned at the greatest difference between the maks and signal, and the screen will display the corresponding amplitude difference.
Measure Mean Power Level
Get quick, acurate, and repeatable readings of the average power of your modulated signal by using the mean-powered -level function of the digital-radio personality. The algorithm used to calculate the mean power level treats the wideband signal as a random noise-like signal. Correctiojn factors are included. To prevent gain compression, additionl RF attenuation automaticlaly switches in if the signal level is greater than 0 dBm.
Frequency Response
Non-intrusive monitoring of your radio-system is simple with the frequency-response measurement. This measurement allows you to set up and store a digital signal as a reference on the spectrum analyzer's display. You can even carry the instrument to another site, where you can compare the frequency to the previously stored refefence trace.
Transient Analysis
Use the digital-radio personality to qualitatively monitor frequency shifts of the digital-radio signal that are causec by EMC or an unlocked LO. The transient-analysis mode looks at the modulated digital-radio signal. In this mode, frequency shifts of the signal are depicted as amplitude variations. An on-screen counter records amplitude variations greater than 5 dB.