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Measuring equipment in CATV networks

Satellite antennas tuning device TELEMANN 1650S

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TELEMANN 1650S is an extended version of the model TELEMANN 1650 where a signal spectrum analyzer mode was added. Owing to a function “span” (stretching), a 120, 240 or 600 MHz wide range section (with reference to the selected current transponder) can be displayed on the screen, facilitating comprehensive signal analysis. The device has a full spectrum of functions to search for a satellite signal, analyze its quality and tune in to a satellite antenna signal (digital or analogue).

The device operates in five modes:

  • Antenna tuning mode – in this mode the satellite name, frequency and the transponder number (or its name) and also the signal level (in the form of histogram and numeral value, both in dB and in % of the set value) and quality (histogram + CNR value) are displayed on the device screen. In this mode the following additional functions are available:
  • a sat-finder type sound tone signal;
  • indication of converter current consumption;
  • measurement of the BER value.
  • Simultaneous measurement mode using the two transponders – transponders can be set both for one and for two different satellites. This allows comparing the signal levels corresponding different polarizations or finding a compromise position of antenna for two satellites being in similar positions with a little divergence.
  • Transponders scanning mode – the device is successively scanning all transponders loaded in memory for the current satellite and displays the results in the form of a signal level data list.
  • Signal spectrum analyzer mode - owing to a function “span” (stretching), a 120, 240 or 600 MHz wide range section (with reference to the selected current transponder) can be displayed on the screen, facilitating comprehensive signal analysis.
  • Setting of the device parameters mode – in this mode the device setting takes place, it can be done both manually and by loading the necessary data (e.g., the lists of satellites) from the computer (RS232C port).

 

Specifications: 

Analogue satellite channel

Range

950 – 2150 MHz

Unit of measure

dB (dBµV, dBmV, dBm) or %

Input impedance

75 Ohm

Frequency resolution

0,1 MHz

Dynamic measurement range

20dBµV (-40dBmV) – 105dBµV (+45dBmV)

Power measurement resolution

0.1 dB

Power measurement accuracy

+/- 2 dB (5 – 50oC)

Digital satellite channel, QPSK

Dynamic measurement range

20dBµV (-40dBmV) – 105dBµV (+45dBmV)

Symbol Rate

1 – 45 Msps

Code Rate

½, 2/3, ¾, 5/6, 6/7, 7/8

BER

2*10-2 – 2*10-8

SNR

3 – 15 dB

Spectrum inversion

Auto

Spectrum analyzer

Dynamic measurement range

30dBµV (-30dBmV) – 105dBµV (+45dBmV)

Span

20MHz, 240MHz, 600MHz, total range

Control feature

DiSEqC

Converter power supply

Output voltage

13 V, 15 V, 18V (+/-1V)

Max. output current

450 mA

Output signal

22 kHz, DiSEqC

General characteristics

Dimensions (HxWxD), mm

190 x 94 x 47

Weight, g

650

Liquid crystal display

128 х 64, backlit

Ni-MH rechargeable battery

7.2 V (1.2V х 6), 2400 mAH

Network adapter

230 V: 12 V, 500 mA

RS232C port

It is possible to load up to 50 satellites from the Internet

Memory functions

50 satellites (70 transponders per satellite)
max. 1500 transponders

Operating temperature

5 – 50oC

An example of a file with the list of satellites for loading in the device can be downloaded here