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NT30 transmitter

 

 

NT 30

Phase Locked Loop Programmable

30W FM Exciter/Transmitter 87.5 - 108 MHz Range

FCC and Industry Canada Approved!

 

 

Mono: $1975USD    Stereo: $2775USD

 

 

Includes low pass/harmonic filter and can be used as a stand-alone transmitter
Instant front panel programmability in 10 kHz increments
All functions via LCD password protected
Adjustable power output from 2 to 30 W with automatic power control maintaining the output at any pre-set level
Remote control features include: power on/off, fwd & ref metering, modulation metering (optional)
Internal temperature metering
24 Volts power capability
FSK ID Keyer optional
FCC and IC approved
High reliability provided by conservatively rated components
Modular layout with plug-in, easily replaceable circuits and parts

TECHNICAL SPECIFICATIONS

Rated Output Power: 2-30 continuously variable (ALC)
RF Output Connector: "N" type female
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 ±500 Hz
Modulation Type: direct carrier frequency modulation
Spurious & Harmonic Suppression: meets or exceeds all FCC and CCIR requirements
Asynchronous AM S/N Ratio: 65 dB below reference carrier with 100% amplitude modulation at 400 Hz without de-emphasis, no FM modulation present
Synchronous AM S/N Ratio: 55 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: 117 or 230 V, ±10%, 50-60 Hz, single phase
Power Consumption: approx. 130 W from AC
Alternate DC Power Requirement: 15 VDC, 4A
Panel Size: 483 mm (19") W x 88 mm (3.5") H (2 standard rack spaces high)
Overall Depth: 327 mm (13")
Weight: 5 Kg (11 Lbs)
Ambient Temperature Range: 0° to 50° C (32° to 122° F)
Pre-emphasis: for FCC 75 µsec; for CCIR 50 µsec
 

Composite Operation
Composite Inputs: four total, 1 for MPX and 3 for SCA
MPX Input: 1 unbalanced BNC connector
MPX Input Impedance: 10k ohm
MPX Input Level: 3.5 Vp-p (1.237 Vrms/3.64 dBm)
Composite FM S/N ratio: >78 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
Stereo Separation: >40 dB (45 dB typical)
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
Total Harmonic Distortion: <0.09% (0.05% typical)
lntermodulation Distortion: 0.05% or less, measured with a 1 kHz and a 1.3 kHz tone, 1:1 ratio, at 100% modulation

 

 

Contact Information:

Telephone

416-243-2260

 
Fax

973-909-8447

 
 
Address
Wavemach Communications
320 Dixon road, Suite 302
Toronto, Ontario, CANADA
M9R-1S8, buzzer code 131
 
E mail
fm@fmamplifiers.com
 

Contacto:

Teléfono

Para español por favor contáctenos por e-mail

Fax

973-909-8447

 
 
Dirección
Wavemach Communications
320 Dixon road, Suite 302
Toronto, Ontario, CANADA
M9R-1S8, buzzer code 131
 
E'mail
fm@fmamplifiers.com