RF Specs
HD Radio only: 100 W to 280 W (-20 dB HD signal injection ratio)
FM + HD Radio: 300 W to 700 W (-20 dB HD signal injection ratio)
Exciter: Broadcast Electronics FXi 60 digital FM/HD exciter
HD Radio Only: 40% or better at rated power
FM+HD Radio: 50% or better at rated power
HD Radio only: 20% or better at rated power
FM + HD Radio: 40% or better at rated power
Range: 87.5 MHz to 108 MHz, programmable in 10 kHz steps
Stability: ±150Hz, -10°C to +50°C using high accuracy internal oscillator.
10MHz and 1pps input for synchronization to external (GPS) reference.
Automatic switching to internal oscillator if external reference fails.
VSWR: Rated power into 1.5:1 VSWR, capable of operating in to higher VSWR with automatic power reduction, open and short circuit protected at all phase angles
RF Harmonics Suppression: Internal harmonic filter meets or exceeds all FCC, IC, CE, CCIR and IEC215 requirements. Meets or exceeds standard NRSC-5A emission limits in all operating modes.
Modulation Type: FM digitally synthesized direct to channel, HD digital direct to channel, FM + HD Radio digital direct to channel.
Operation Modes: On the fly mode switching between FM only, FM + HD Radio, and HD Radio only.
FM Modulation Capability: Great than ±300 kHz
Synchronous AM S/N Ratio: 58dB minimum below equivalent 100% amplitude modulation with 75us de-emphasis and 400Hz high pass filter (FM deviation +/- 75kHz by a 400Hz sine wave). 65dB typical below equivalent 100% amplitude modulation with 75us de-emphasis and 400Hz high pass filter (FM deviation +/- 75kHz by a 400Hz sine wave).
Asynchronous AM S/N Ratio: 68dB minimum below equivalent 100% amplitude modulation by 400Hz using 75us de-emphasis (no FM modulation present). 76dB minimum below equivalent 100% amplitude modulation by 400Hz using 75us de-emphasis (no FM modulation present).
Regulatory: Meets or exceeds all FCC requirements
Audio Specifications with FXi 60 Digital Exciter
Modes: Stereo, mono (L+R), L only, R only; remote selectable
Stereo Performance (AESor analog inputs):
Pre-Emphasis: Selectable None, 50 or 75 microseconds
Stereo Pilot Tone: 19kHz ±.03Hz; injection level adjustable 0% to 15% in 0.1% steps; Nominal: 9%; Suppression: 38kHz, 57kHz, 76kHz, and 95kHz; 80dB
below ±75kHz deviation.
Stereo Separation: 65dB or better, 20 to 15kHz
Dynamic Stereo Seperation: 65dB or better, 20 to 15kHz
Amplitude Response: 0.1dB, 20Hz to 15kHz
Signal to Noise Ratio: 87dB or better below 100% modulation at 400Hz; measured in a 20Hz to 22kHz bandwidth with 75us de-emphasis and DIN “A”
weighting.
Total Harmonic Distortion: <.03%; 20Hz to 15kHz, in bandwidth 20Hz to 22kHz; with 75us de-emphasis
Intermodulation Distortion:
CCIF: <.03% or less (14/15kHz 1:1)
SMPTE: <.03%(60 and 7kHz 1:1)
Transient Intermodulation Dist: <.03%; (2.96kHz square wave/14kHz sinewave modulation)
Linear Crosstalk: 90 dB below 100% modulation reference
Non-Linear Crosstalk: 80 dB below 100% modulation reference
Mono Performance (AES or analog input):
Pre-Emphasis: Selectable None, 50 or 75 microseconds
FM Signal to Noise Ratio: 95dB or better below 100% modulation at 400Hz; measured in a 20Hz to 22kHz bandwidth with 75us de-emphasis and DIN “A”
weighting.
Amplitude Response: ±.1dB, referenced to selected pre-emphasis curve.
Intermodulation Distortion:
CCIF: .03% or less (14/15kHz 1:1)
SMPTE: .03% or less (60/7kHz 1:1)
Transient Intermodulation Dist: .03% or less (2.96kHz square wave/14kHz sine wave)
FM Signal to Noise Ratio: 95dB or better below 100% modulation at 400Hz; measured in a 20Hz to 22kHz bandwidth with 75us de-emphasis and DIN “A”
weighting.
Amplitude Response: ±.01dB, 20Hz to 53kHz; ±.1dB, 53kHz to 100kHz
Total Harmonic Distortion: .005% or less over stereo sub band (10Hz to 53kHz) with 75us de-emphasis.
Intermodulation Distortion:
CCIF: .005% or less (14/15kHz 1:1)
SMPTE: .005% or less (60/7kHz 1:1)
Transient Intermodulation Dist: .005% or less (2.96kHz square wave/14kHz sine wave)
Slew Rate: 11.8V/us-symmetrical
Phase Response Variation: ±.05° from linear phase, 10Hz to 100kHz
Group Delay Variation: ±5ns, 22Hz to 53kHz, ±30ns, 53kHz to 100kHz.
External SCA, RBDS Performance:
SCA Format: Externally generated, analog FM subcarriers in the range 53-99kHz.
SCA Sub-band Amplitude Response: ±.5dB; 40kHz to 100kHz.
SCA Channel FM Signal to Noise Ratio: 80dB below +6kHz subcarrier deviation at 400Hz with 150us de-empahasis.
Harmonic Distortion: Less than .2% in audio pass-band of SCA generator
Intermodulation Distortion: SMPTE(60 and 7kHz, 1:1): 0.2% or less, no pre/de-emphasis, SCA generator low-pass filter bypassed.
SCA to Stereo: 80dB below 100% modulation, L or R channel with 75us de-emphasis.
Stereo to SCA: 80dB below 100% modulation referenced to ±6kHz deviation and 150us de-emphasis
SCA to SCA: 80dB below 100% modulation referenced to ±6kHz deviation and 150us de-emphasis per channel.
Dual Internal SCA Performance:
Pre-Emphasis: Selectable: 150us, 75us, 50us, none
Amplitude Response: ±.5dB; 20Hz to 7kHz.
Subcarrier Frequency: 57kHz to 99kHz
Signal to Noise Ratio: 80dB with de-emphasis(150us).
Total Harmonic Distortion: .1% 10Hz to 5kHz
SCA Deviation Capability: 1kHz to 10 kHz; software programmable.
Injection Level: 2% to 15%, software adjustable in 0.1% increments
2nd Harmonic: Better than 40dB below subcarrier
3rd Harmonic: Better than 45dB below subcarrier
All other components: 50Hz to 100kHz: better than 80dB below subcarrier.
RBDS Generator (Internal):
Subcarrier Frequency: 57kHz, ±0.1Hz
Injection Level: 2% to 15%, software adjustable.
Mechanical/Physical
Size: 19"W x 25"D x 21"H (48.3 W x 63.5 D x 53.3 H cm) 12RU for amplifier + 4RU for exciter.
Weight: 103 lbs (46.8 kg)
HD Radio Only: 1100 watts (3755BTU/Hr) @ 300 watts RF output
FM + HD Radio: 1000 watts (3413 BTU/Hr) @ 700 watts RF output
RF Output Connector: Type N Connector, Female
Environmental
Ambient Temperature Range: +32°F to +122°F (0°C to 50°C)
Altitude: To 10,000 feet (3050m) elevation above mean sea level, 60Hz operation; To 7500 feet (2286m) elevation above mean sea level, 50Hz operation
Humidity: To 95% Non-Condensing
Electrical
AC Input Voltage: Single Phase: 196 to 252 VAC, 47-63 Hz
Power Factor: .99 or better at 230 VAC
HD Radio Only: 1400 watts @ 300 watts RF output
FM + HD Radio: 1700 watts @ 700 watts RF output
