XFtp TPNA-1000, Manual

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1.9
TPNA-1000 - Section I: The Basics
Carrier to Noise (C/N) Measurement
The TPNA-1000 measures the Carrier to Noise Ratio of Analog (NTSC, PAL) non-scrambled
channels.
HUM Measurement
The TPNA-1000 measures HUM, a low-frequency interference (also known as Power Supply
Modulation distortion) from power supplies on Analog (NTSC, PAL) non-scrambled channels.
Depth of Modulation
The TPNA-1000 measures Modulation Depth of Analog (NTSC, PAL) video signals to verify
proper performance.
Limit Test
The TPNA-1000 can perform a complete test of all the Analog channels in the User Channel
Plan and compare their values to specified limits. The limits can be set by the user for each
channel. Detailed channel information is displayed at the conclusion of each test.
Autotest Programs
The TPNA-1000 can be set to automatically perform QAM, Level, Spectrum, Tilt (Favorite),
Hum, and Limit tests in user settable time increments. The test result files can be viewed or
uploaded to a PC.
Voltmeter
The TPNA-1000 is equipped with a built-in voltmeter that can be used for troubleshooting
voltage detected on the coaxial cable. The built-in voltmeter can detect and measure AC or
DC voltages automatically. It can accomodate AC or DC voltages up to 100 Volts.
Multiple User Channel Plans
The TPNA-1000 can create up to five User Channel Plans that may contain Digital, Analog, or
a combination of both channel properties.