TELECOMMUNICATIONS TEST EQUIPMENT - Promax
TELECOMMUNICATIONS TEST EQUIPMENT - Promax
TELECOMMUNICATIONS TEST EQUIPMENT - Promax
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ACCESSORIES<br />
LN-370B Low noise amplifier<br />
The LN-370B is a low noise amplifier which allows the dynamic range of<br />
spectrum analysers and level meters to be extended, to measure weak amplitude<br />
signals.<br />
SPECIFICATIONS<br />
LN-370B<br />
Frequency range<br />
10-2050 MHz<br />
Gain<br />
20 dB ± 2 dB<br />
Flatness<br />
± 1 dB (10-1000 MHz)<br />
±2.5 dB (1000-2050 MHz)<br />
Maximum input level 70 dBµV<br />
Input impedance 50 W (VSWR max. 2:1)<br />
Input connector<br />
BNC female<br />
Output impedance 50 W (VSWR max. 3.5:1)<br />
Output connector<br />
BNC male<br />
Power supply<br />
12 - 18 V (auxiliary connector or input<br />
connector or output connector)<br />
Consumption<br />
25 mA max.<br />
Max. cuurent (no damage) 400 mA<br />
PC-108 Polarizer controller<br />
The PC-108 is a polarizer controller able to drive all type of magnetic polarizers. It is powered through<br />
the input connector without breaking the LNB supply.<br />
SPECIFICATIONS<br />
Voltage<br />
Current variation range<br />
Insertion losses<br />
PC-108<br />
12 to 18 V<br />
From -140 to 140 mA max<br />
< 2 dB (950 - 2050 MHz)<br />
CV-550 Sub-band converter<br />
El CV-550 is a converter from sub-band to VHF so that these sub-band channels can be measured with<br />
standard TV / FM level meters not including coverage for that frequency range as a standard.<br />
SPECIFICATIONS<br />
CV-550<br />
Input frequency range<br />
From 5 to 50 MHz<br />
Conversion loss<br />
0 dB ± 1 dB<br />
Maximum input level 130 dBµV (40 dB attenuator )<br />
Power supply<br />
Internal battery<br />
External 12-18 V<br />
Through output connector<br />
NG-281/NG-282 Noise Generators<br />
The NG-281/NG-282 noise generators are large bandwidth devices especially designed for application in all kinds of television installations, whether terrestrial,<br />
cable or satellite distribution.<br />
Powered by battery or mains adapter, they enable the user to perform measurements in combination with field level meters or spectrum analysers in highly<br />
complex installations. Obtaining the frequency responses of active and passive circuits, measuring impedance adaptation and the relation of standing waves in<br />
combination with a reflection bridge, and the detection of anomalies in transmission lines, are some of the functions where NG-281/NG-282 noise generators are<br />
of great assistance.<br />
SPECIFICATIONS NG-282 NG-281<br />
Frequency range 20-2000 MHz 5-1000 MHz<br />
Output level 50 dBµV ( 70 dBmV (300 kHz bandwidth)<br />
Frequency response<br />
5-1000 MHz ±2 dB<br />
20-1000 MHz ± 2 dB<br />
1000-2000 MHz ± 3 dB<br />
Output impedance 75 W 75 W<br />
Internal supply 6F22 9V battery 9V NiCd CB037 battery<br />
Battery life 1.5 h at 30% on / off operation 1.5 h at 30 % on / off operation<br />
(alkaline battery)<br />
(alkaline battery)<br />
External supply<br />
Voltage range 12 to 18 V DC 11 to 18 VDC<br />
Consumption 200 mA maximum 100 mA maximum<br />
Dimensions W.72 x H.35 x D.121 mm W.72 x H.35 x D.121 mm<br />
Weight 200 g 200 g<br />
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