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Technical Specifications

 

STX LP 3kW G2 - Specifications

Nov 24, 2017

RF SPECIFICATIONS

Output Power:
Range:
FM750-3300 W
FM+HD (with VPe XG)2,335 W @ -20 dB; 1,670W @ -14 dB; 1,335W @ -10dB (All powers approximate. Actual power levels dependent upon installation and frequency)
HD Only (with VPe XG)1000W (Typical. Actual output power dependent upon installation and frequency)
Accuracy+/-5%
Resolution1 W
Efficiency63% typical AC to RF (FM Only)
VSWRRated power into 1.5:1 @ 3000w
Output Impedance50 ohms nominal
Frequency:
Range87.5 MHz to 108 MHz, programmable in 10 kHz steps
StabilityInternal TCXO: +/-100 kHz, +/-4ppm aging/temp, -10 degrees C to +50 degrees C External Input: +/- accuracy of reference source
RF Harmonics SuppressionSuppression meets all FCC/IC/ETSI requirements
Modulation:
TypeDirect-to-channel digitally generated FM (no analog up-conversion); FM only,HD Radio only, or HD Radio + FM, DRM+
Capabilitiesup to 300 kHz
Audio InputsAES, L&R analog, composite, SCA/RBDS/RDS external generator input,SCA audio inputs(2)
Asynchronous AM S/N RatioBetter than -65dB (-70dB Typical) referenced to average peak-to-peak carrier amplitude. 75uSec de-emphasis
Synchronous AM S/N RatioBetter than 60dB referenced to average peak-to-peak carrier amplitude. 75kHz deviation @400Hz
Spurious and Harmonic85dB or better; low pass filter standard
Power Factor0.98 or better
RegulatoryMeets all FCC/IC/CE and IEC 215 safety requirements

FM AUDIO SPECIFICATIONS WITH INTERNAL EXCITER

Composite:
Connector TypeBNC un-balanced
Input Level3.5 V p-p nominal for 75 kHz deviation
Impedance10k ohms
Amplitude Response+/-0.03 dB, 30Hz to 53kHz; +/-0.1 dB, 53kHz to 100kHz
Total Harmonic Distortion + Noise0.005% or less @ 400Hz, 10-22kHz bandwidth, 75uSec deemphasis
Intermod Dist0.13%, SMPTE (60/7000Hz, 1:1 ratio), DIM-B: 0.008% (14KHz)
S/N Ratio85 dB below 100% modulation @ 400Hz
AES Input:
Connector XLR Female
Impedance110 Ohms, balanced
Level-2 dBFS for 100% modulation
Amplitude Response:+/-0.03 dB, 30Hz to 53kHz; +/-0.1 dB, 53kHz to 100kHz
THD + Noise:
Stereo0.01% typical @ 400Hz, measured 10-22kHz, 75uSec deemphasis
Mono0.005% typical & 400Hz, measured 10-22kHz, 75uSec deemphasis
SNR
Stereo80dB below 100% modulation @ 400Hz
Mono85dB below 100% modulation @ 400Hz
Stereo Separation:-74dB below 100% modulation @ 400Hz
Preemphasis50us, 75us, none
ModesMono L, Mono R, Mono L+R, Stereo
Analog L/R
Input Level3.5V p-p for 100% modulation into 10k Ohms
Impedance600 Ohms or 10k Ohms, selectable, balanced
ConnectorXLR Female
Amplitude Response+/-0.25 dB, 30Hz to 53kHz
Stereo Separation-70dB, 30Hz to 15kHz
THD + Noise
Stereo0.01% typical @ 400Hz, measured 10-22kHz, 75 uSec deepmhasis
Mono0.008% typical @ 400hz, measured 10-22kHz, 75uSec deemphasis
SNR
Stereo80 dB below 100% modulation @ 400Hz
Mono83dB below 100% modulation @ 400Hz
Modes Mono L, Mono R, Mono L+R, Stereo

PILOT OUTPUT (19kHz)

Stability Internal TXCO +/-0.018Hz Factory Calibration, +/-4ppm aging/temp, -10 to +50 degrees C; External Input +/- Accuracy of Reference Source
ConnectorBNC un-balanced
Level+/-5% 1V p-p into high impedance

10MHz INPUT

ConnectorSMA un-balanced
Level1 to 3V p-p, nominal 2.8V p-p (13dBm)

1 PULSE PER SECOND INPUT

Connector SMA un-balanced
Level5V TTL Rising Edge

SCA/RBDS/RDS (EXTERNAL)

Input Level3.5V p-p for 10% deviation
Impedance10k ohms unbalanced
ConnectorBNC
Amplitude Response+/- 0.1dB; 53KHz to 100kHz
THD+N0.15% 53khz to 100kHz

MECHANICAL/PHYSICAL

Size:
Unpacked19" W x 26.25"(15RU) H x 26" D (48.3 cm W x 66.7 cm H x 66.1 cm D)
Weight:
Unpacked170 lbs (77.1 kg)
Airflow:
Outlet Size175 square inches (1129 square cm); Rear of unit
RF Output Connector1-5/8" EIA Flange and 1-5/8" 90 degree Elbow provided.

ENVIRONMENTAL

Temperature-10 degrees to +50 degrees C
Altitude10,000 ft (3,048 M)
Humidity95% Non-Condensing

ELECTRICAL

AC Input Voltage180-260 VAC, 47-63Hz (Single Phase) or 180 to 260 VAC 3 Phase Delta or 311 to 449 VAC 3 Phase 4 Wire Wye
Disconnect Size60 A
AC Wire Size#4 Copper AWG, Type THHN
Current Draw22.9A Typical
Power Consumption4.75 kW (calculated)
Cooling Air Requirements800 CFM (22.7 M3/min)
Heat Dissipation1762 W at 3 kW RF Output into 50 Ohm load
BTU6012 BTU/H at 3 kW RF Output into 50 Ohm load
Power Factor0.98 at full load
Surge ProtectionSuitable Surge Arrestor Recommended

All Values Apply to FM Only Mode


Specifications Subject to Change Without Notice


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