dB PM 1000 - Page 12

DB ELETTRONICA TELECOMUNICAZIONI S.p.A.
PM 1000 – 1 kW FM Broadcasting Transmitter - USER’S MANUAL
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Stereo operation (with external stereo coder /S option)
MPX input level ............................................................................................... 2.2 Vpp per 75 kHz dev
Input connector ............................................................................................................................. BNC
Input impedance ........................................................................................................................... 10 kΩ
Bandwidth (± 0.25 dB) ............................................................................................... 20 Hz to 100 kHz
MEASURES
Forward power
Reflected power
Vpa units supply
Ipa total of all amplifier units
Deviation
L/R level
PROTECTION
The internal logic circuitry provides proportional feedback protection, without on-air interruptions,
for:
- VSWR
- air over-temperature
- insufficient cooling
- fault of RF stages
AC POWER REQUIREMENTS
Operating voltage ............................................................................... 115/230 VAC ± 10 %, 50/60 Hz
Power consumption ................................................................................................................. 1760 VA
Battery operation (option /VDC) .................................................................................... 48 VDC, 38 A
OPERATING CONDITIONS
Cooling .......................................................................................................... forced air by internal fans
Service ...................................................................................................................... continuous 24/24h
Temperature range ........................................................................................................... -5° to +45° C
Humidity ................................................................................................................................ 95% max.
Max. Installation altitude .................................................................................................. 4000 m a.s.l.
WEIGHT AND SIZE
Weight ........................................................................................................................................... 48 kg
Dimensions (W x H x D) ..................................................................................... 483 x 136 x 522 mm
OPTIONS
External frequency setting (/C)
Stereo coder (/S)
Audio processor (/P)
Remote control (/R)
Battery operation (/VDC)