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Technical Specifications

 

STX LP 1 kW - Specifications (D)

Nov 24, 2017

RF Specs

Output Power:
Range:
FM250-1100 W
FM+HD (with external exciter)175-700 W (-20 dB); 110-450 W (-10 dB)
HD Only (with external exciter)75-330 W
Accuracy+/-5%
Resolution1 W
Efficiency64% typical
VSWRRated power into 1.5:1
Output Impedance50 ohms nominal
Frequency:
Range87.5 MHz to 108 MHz, programmable in 10 kHz steps
Stability+/-150 Hz, -10 degrees to +50 degrees C
RF Harmonics SuppressionSuppression meets all FCC/IC/ETSI requirements
Modulation:
TypeDirect-to-channel; FM (FM+HD or HD Only with external exciter)
Capabilities300 kHz
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; +/-0.25 dB, 53Hz to 100kHz
Total Harmonic Distortion + Noise0.1%, 20Hz to 53kHz; 0.15%, 53kHz to 100kHz
Intermod Dist0.13%, SMPTE (60/7000Hz, 1:1 ratio)
S/N Ratio80 dB below 100% modulation @ 400Hz
Asychronous AM S/N RatioBetter than 65dB (typical 70dB) below referenced to 100% peak AM modulation
Synchronous AM S/N RatioBetter than 53dB (typical 60dB) below referenced to 100% peak AM modulation; 75 usec de-emphasis with 75kHz deviation @ 400Hz sine wave
SCA1 & SCA2:
External:
Connector TypeBNC un-balanced (2)
Input Level3.5 V p-p nominal for 10% injection level
Impedance10k ohms
Frequency Response+/-0.5dB; 53kHz to 100kHz
RDS:
External:
Connector TypeBNC un-balanced
Input Level3.5 V p-p nominal for 10% injection level
Impedance10k ohms
Frequency Response+/-0.5dB; 53kHz to 100kHz
Pilot Stability+/-0.3 Hz, 0 degrees C to 50 degrees C

FM Audio Specifications (Internal Exciter and Optional Stereo Generator)

ModesStereo, Mono (L+R), Mono L, Mono R
Stereo:
Connector Type:
AESXLR
L&RXLR
Input Level:
AES-2 dBFS for 100% modulation
L&R+10 dBm for 100% modulation into 600 Ohm
Impedance:
AES110 Ohm balanced
L&R600 Ohm or 10K Ohm selectable; balanced
Amplitude Response:
AES+/-0.5 dB, 30Hz to 15kHz
L&R+/-0.5 dB, 30Hz to 15kHz
THD + Noise:
AES0.1% or better
L&R0.1% or better
Intermod Dist:
AES0.1% or better
L&R0.1% or better
S/N Ratio:
AES75 dB below 100% modulation @ 400 Hz
L&R75 dB below 100% modulation @ 400 Hz
Separation:
AES-50dBr 30Hz to 15kHz
L&R-50dBr 30Hz to 15kHz
Preemphasis50us, 75us, none
RDS:
19kHz Output:
ConnectorBNC Un-balanced
Impedance4.7K Ohm min load
Level1 vp-p

Mechanical/Physical

Size:
Unpacked19" W x 5.25" H x 26" D (48.3 cm W x 13.4 cm H x 66.1 cm D)
Weight:
Unpacked44 lbs (20 kg)
Airflow:
Outlet Size75 square inches (493 square cm); Rear of unit
RF Output ConnectorType N Connector, Female

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)
Disconnect Size20 A
AC Wire Size#12 Copper AWG, Type THHN
Current Draw8.5 A Typical (Measured at 208 VAC, 1 kW output)
Power Consumption1.75 kW (calculated)
Cooling Air Requirements200 CFM (5.7 M3/min)
Heat Dissipation750 W at 1 kW RF Output into 50 Ohm load
BTU2560 BTU/H at 1 kW RF Output into 50 Ohm load
Power Factor0.98 at full load
Surge ProtectionSuitable Surge Arrestor Required

All Specifications Subject to Change Without Notice


Click to Download Technical Specs (PDF)

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STX 1kW (D) Discontinued

 

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