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Used AM Transmitters

 
Used FM Transmitters
 
 
 
 
 
 
 
 
 

Nicom NTi 5000 - 5kW Transmitter
Phase Locked Loop Programmable
FM Exciter/Transmitter 87.5 - 108 MHz Range

With TCP/IP control

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 TECHNICAL SPECIFICATIONS
Rated Output Power: 10-5000 Watts continuously variable (ALC)
RF Output Connector: 7/8 EIA Flange
RF Output Impedance: 50 ohm
Frequency Range: 87.5 MHz to 108 MHz
Frequency Programmability: direct from front panel in 10 kHz increments
Frequency Stability: better than 5 ppm ( 500 Hz)
Modulation Type: direct carrier frequency modulation
Emission class: F3E
Spurious & Harmonic Suppression: < - 80 dB or better
Stereo Separation: 55 dB @ 1 Khz
Distortion: < 0.1 % (typ. 0.05 %)
Asynchronous AM S/N Ratio: 65 dB below reference carrier with 100%amplitude modulation at 400Hz
without de-emphasis, no FM modulation present
Synchronous AM S/N Ratio: 60 dB or better below reference carrier with 100% amplitude modulation at 400 Hz, without de-emphasis, FM modulation = 75 kHz at 400 Hz
AC Power Requirement: 200-240 VAC, 10%, 50-60 Hz, single phase (Internally Selectable)
Power Consumption: approx. 6500 W from AC
Panel Size: 483 mm (19") W x 132 mm (7") H (5 standard rack spaces high)
Overall Depth:  540 mm (21")
Weight: 30 Kg (66 Lbs)
Ambient Temperature Range: 0 to 50 C (32 to 122 F)
Pre-emphasis: for FCC 75 μsec; for CCIR 50 μsec internally selectable
Composite Operation
Composite Inputs: four total, 1 for MPX and 3 for SCA
MPX Input: 1 unbalanced BNC connector
MPX Input Impedance: 2k ohm
MPX Input Level: 3.5 Vp-p (1.237 Vrms/3.64 dBm)
Composite FM unweighed S/N ratio: >68 dB below 75 kHz deviation at 400 Hz measured in a
30 Hz to 100 kHz bandwidth with 75 μsec de-emphasis (RMS)
Composite Total Harmonic Distortion: 0.05% typical
Composite Intermodulation Distortion: 0.05%, measured with a 1 kHz and a 1.3 kHz tone, 1:1 ratio, at 100% modulation
Baseband: 30 Hz – 60 Khz within 0.15 dB
Crosstalk: Main to stereo subchannel and stereo subchannel to main >55 dB (60 dB typical)
SCA Inputs: 3 unbalanced BNC connectors
SCA Input Impedance: 10k ohm
SCA Input Levels: 0 dBm (775 mVrms/2.2 Vp-p) nominal for 7.5 kHz deviation, adjustable
SCA Amplitude Response: 0.8 dB, 40 kHz to 100 kHz
Crosstalk: 67 kHz SCA to main or to stereo subchannel >65 dB
Crosstalk: 92 kHz SCA to main or to stereo subchannel >70 dB
Monaural Operation
Audio Input Impedance: 600 ohm balanced or unbalanced; 50 dB common mode suppression
Audio Input Level: 0 dBm (775 mVrms/2.2 Vp-p) for 75 kHz, adjustable
FM S/N Ratio: >70 dB below 75 kHz, deviation at 400 Hz measured in a 30 Hz to 20 kHz bandwidth with 75 μsec de-emphasis (RMS)
Audio Frequency Response: 0.8 dB, 30 Hz to 15 kHz
lntermodulation Distortion: 0.05% or less, measured with a 1 kHz and a 1.3 kHz tone, 1:1 ratio, at 100% modulation