|
|
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 |
|
|
|
