SISTEL Prodotto 4

SISTEL di Ing. Re Claudio

The new TS9000 replaces the T980AP. It features greater accuracy and runs from and is powered by a USB port. No power adaptor or mobile power cable is required, making World wide use possible.

The unit samples the Multiplex signal at 240KHz at 12bits precision. This data is passed via the USB cable to the PC, where all measurements and calculations are performed in software. The T980AP was sampled at 8bits, with analogue computation.

Modulation Power measurement is now calculated with 32bit floating point precision

Basic measurements:

	Deviation +ve and -ve
	Modulation power
	Pilot 19KHZ
	RDS carrier 57KHz
	Signal Strength
	Multipath

Multiplex signal accuracy:

A wider 280KHz bandwidth and a new LC IF equalization circuit provide a much ‘flatter’ frequency response: A 5 pole Butterworth filter provides out of band suppression.

	20Hz to 80KHz < -0.25dB
	100KHz < -0.4dB
	200KHz > -65dB

Deviation accuracy:

0 to 75KHz < +/-1.5% (1KHz test sinusoid)

Spectrum Analyser:

The software includes a FFT Spectrum Analyser covering 0.1Hz to 100KHz with a range >90dB

This can be used to inspect the Multiplex signal or can be used as a stand alone audio analyser using the external BNC input. This also has a software selectable 20dB pre-amplifier, increasing the effective range to >110dB. Various sample windows can be applied i.e. Hanning, Hamming, Blackman-Harris etc, providing a versatile measurement instrument. See picture below for spectrum analyser set showing 0.1Hz to 70KHz of the FM multiplex signal:

Oscilloscope:

The Multiplex signal can be viewed in the time domain with an oscilloscope type display. The timebase can be set from 10ms/div to 10us/div. The Y-axis has a x10 function. The trigger point can be user set or automatic. The picture below shows typical trace with positive and negative deviation bar graphs. These can be arithmetically rectified to give absolute readings.

Main screen:

Deviation histogram window:

Modulation power window:

Antenna attenuator:

Software switched -10dB, -20dB and -30dB

Band switching:

Wideband 280KHz for multiplex measurements

Narrowband 230KHz for signal strength scanning

THD and SNR:

Total harmonic distortion is typically 0.2%, with a signal-to-noise >80dB

Left and Right channel monitoring:

The low impedance XLR balanced outputs, will drive line or 8 ohm loudspeakers at 0.4watts/channel for audio monitoring.

Signal connectors:

	BNC Antenna input 50ohms
	BNC IF input at 10.7MHz
	BNC Analyser input 15K 0dBm (Multiplex in or Spectrum analyser)
	BNC Multiplex output 50ohms 0dBm at 75KHz
	XLR Audio left and right, balanced. Line or loudspeaker.
	Jack Headphone or sound card
	USB 1.1

System requirements:

	TS9000 software runs under Windows98/2, Me, 2000 and XP.
	Minimum usable system: Windows98/2 running on a 300MHz Pentium/Athlon
	Recommended system: Windows2000/XP 800MHz Pentium/Athlon
	A fast graphics card is also recommended as this provides for a fast update of the Spectrum Analyser and Oscilloscope traces.

Dimensions:

225mm * 200mm * 72mm

TS9000 package:

TS9000 unit

USB cable

CD software

Installation instructions

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