Platinum™ Analog Series

Solid-State VHF Analog Transmitter

Platinum Series® solid-state VHF Analog television transmitters are accepted as the world standard and are in service in more than 50 countries. Exemplary reliability, low maintenance requirements and excellent performance are some of the key attributes of this design.

Each Platinum system includes a control cabinet and one to six power amplifier cabinets. The control cabinet houses the system controller, exciter, monitoring, control panel and an optional second exciter and driver with automatic changeover.

Platinum transmitters are now able to provide IP-based control and monitoring by using the Harris® eCDi® remote monitoring system tied to the stations LAN or directly to the Internet.

Features

  • Field-proven, ultra-reliable Platinum Series amplifier modules provide unsurpassed system dependability
  • Field-repairable MOSFET amplifiers are designed to provide a long life and low cost of ownership
  • Positive-pressure air cooling system with patented techniques ensure the lowest FET junction temperatures and highest MTBF
  • On-air replaceable modules allow on-air servicing and increased system availability
  • Reliable, distributed control architecture provides outstanding reliability and simple serviceability
  • Regulated linear power supplies manage incoming line fluctuation up to 10% for rock-solid performance
  • Straightforward diagnostics enabled via an easy-to-read display
  • Upgrade path from analog to digital operation
  • Backed by broadcasting’s most extensive factory support, including 24-hour technical assistance, around-the-clock parts and comprehensive training

Specifications

Specifications and designs are subject to change without notice.

HT5LS
Visual Power Output (peak, diplexer out)5 kW
Aural Power (diplexer out)500 W
Connector Size at Cabinet Output (50 ohms):
Visual1-5/8 in.
AuralType N
Physical Size (W x D x H)57 x 61.3 x 72 in. (145 x 156 x 183 cm)
Weight2,475 lbs (1,122 kg)
Power Consumption (typical):
Average11.2 kW
Black13.2 kW

HT5HS
Visual Power Output (peak, diplexer out)5 kW
Aural Power (diplexer out)500 watts
Connector Size at Cabinet Output (50 ohms):
Visual1-5/8 in.
AuralType N
Physical Size (W x D x H)57 x 61.3 x 72 in. (145 x 156 x 183 cm)
Weight2,500 lbs (1,134 kg)
Power Consumption (typical):
Average11.2 kW
Black13.2 kW

HT10LS/HS
Visual Power Output (peak, diplexer out)10 kW
Aural Power (diplexer out)1 kW
Connector Size at Cabinet Output (50 ohms):
Visual1-5/8 in.
AuralType N
Physical Size (W x D x H)57 x 61.3 x 72 in. (145 x 156 x 183 cm)
Weight2,720 lbs (1,234 kg)
Power Consumption (typical):
Average20.5 kW
Black26 kW

HT15LS
Visual Power Output (peak, diplexer out)15 kW
Aural Power (diplexer out)1.5 kW, 3 kW optional
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)91 x 61.3 x 72 in. (231 x 156 x 183 cm)
Weight4,200 lbs (1,905 kg)
Power Consumption (typical):
Average25 kW
Black32 kW

HT15HS
Visual Power Output (peak, diplexer out)15 kW
Aural Power (diplexer out)1.5 kW, 3 kW optional
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)91 x 61.3 x 72 in. (231 x 156 x 183 cm)
Weight4,900 lbs (2,223 kg)
Power Consumption (Typical):
Average28 kW
Black35 kW

HT20LS/HS
Visual Power Output (peak, diplexer out)20 kW
Aural Power (diplexer out)3 kW
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)91 x 61.3 x 72 in. (231 x 156 x 183 cm)
Weight5,000 lbs (2,268 kg)
Power Consumption (typical):
Average40 kW
Black51 kW

HT30LS
Visual Power Output (peak, diplexer out)30 kW
Aural Power (diplexer out)3 kW, 6 kW optional
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Dimensions (W x D x H)125 x 61.3 x 72 in. (318 x 156 x 183 cm)
Weight6,000 lbs (2,860 kg)
Power Consumption (Typical):
Average51.9 kW
Black65.5 kW

HT30HS
Visual Power Output (peak, diplexer out)30 kW
Aural Power (diplexer out)3 kW, 6 kW optional
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)125 x 61.3 x 72 in. (318 x 156 x 183 cm)
Weight6,750 lbs (3,068 kg)
Power Consumption (typical):
Average55 kW
Black69 kW

HT30HSP
Visual Power Output (peak, diplexer out)30 kW
Aural Power (diplexer out)4.5 kW
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)125 x 61.3 x 72 in. (318 x 156 x 183 cm)
Weight7,040 lbs (3,200 kg)
Power Consumption (typical):
Average61.6 kW
Black78 kW

HT33LSP
Visual Power Output (peak, diplexer out)33 kW
Aural Power (diplexer out)4.5 kW
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)125 x 61.3 x 72 in. (318 x 156 x 183 cm)
Weight7,040 lbs (3,200 kg)
Power Consumption (typical):
Average60 kW
Black76 kW

HT40HSP
Visual Power Output (peak, diplexer out)40 kW
Aural Power (diplexer out)6 kW 
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)159 x 61.3 x 72 in. (404 x 156 x 183 cm)
Weight9,240 lbs (4,200 kg)
Power Consumption (typical):
Average79.8 kW
Black101 kW

HT44LSP
Visual Power Output (peak, diplexer out)44 kW
Aural Power (diplexer out)6 kW 
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)159 x 61.3 x 72 in. (404 x 156 x 183 cm)
Weight9,240 lbs (4,200 kg)
Power Consumption (typical):
Average79.8 kW
Black101 kW

HT45LS
Visual Power Output (peak, diplexer out)45 kW
Aural Power (diplexer out)4.5 kW, 9 kW optional 
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Dimensions (W x D x H)159 x 61.3 x 72 in. (404 x 156 x 183 cm)
Weight8,590 lbs (3,896 kg)
Power Consumption (typical):
Average79.8 kW
Black96 kW

HT45HS
Visual Power Output (peak, diplexer out)45 kW
Aural Power (diplexer out)4.5 kW, 9 kW optional 
Connector Size at Cabinet Output (50 ohms):
Visual4-1/16 in.
Aural3-1/8 in.
Physical Size (W x D x H)159 x 61.3 x 72 in. (404 x 156 x 183 cm)
Weight9,313 lbs (4,224 kg)
Power Consumption (typical):
Average81 kW
Black102 kW

HT60LS
Visual Power Output (peak, diplexer out)60 kW
Aural Power (diplexer out)6 kW, 12 kW optional 
Connector Size at Cabinet Output (50 ohms):
Visual3-1/8 in.
Aural1-5/8 in.
Physical Size (W x D x H)227 x 61.3 x 72 in. (577 x 156 x 183 cm)
Weight12,630 lbs (5,606 kg)
Power Consumption (typical):
Average102.7 kW
Black130 kW

HT60HS
Visual Power Output (peak, diplexer out)60 kW
Aural Power (diplexer out)6 kW, 12 kW optional 
Connector Size at Cabinet Output (50 ohms):
Visual4-1/16 in.
Aural3-1/8 in.
Physical Size (W x D x H)227 x 61.3 x 72 in. (577 x 156 x 183 cm)
Weight13,760 lbs (6,242 kg)
Power Consumption (typical):
Average108.2 kW
Black137 kW

Visual Performance
Frequency RangeLS Model:  47 to 88 MHz (Band I)
HS Model: 170 to 230 MHz (Band III)
Carrier Frequency Stability1±100 Hz (maximum variation over 30 days)
±2 Hz with optional precise frequency control
Regulation of Output Power23% or less relative to peak sync
Variation of Output32% or less
Frequency Response vs. Brightness5±0.75 dB
Modulation Capability0%
Differential Gain63% or better
Differential Phase61° or better
Incidential Carrier Phase Modulation6±1.5° or better relative to blanking
Differential Gain vs APL7±5% or better (10% to 90% APL)
Luminance Non-Linearity80.5 dB or better
Signal-to-Noise-55 dB RMS or better relative to sync peak
(total random and periodic noise unweighted)
2t K-FactorCCIR-M 1.5%; 2.0% for other systems
20t Gain and Delay Response3% or less total baseline distortion
Equivalent Envelope DelayPer CCIR system standard
Video Input Level0.7 to 2.0 volts, 75 ohms, -32 dB return loss
Harmonic Radiation-70 dB RMS, relative to peak of sync

Visual Sideband Response:4
CCIR System M/N
-3.58 MHz-42 dB or better
-1.25 MHz and Below-23 dB or better
-0.75 to +3.58 MHz±0.5 dB
+4.18 MHz+0.5 to -1 dB
+4.50 MHz-30 dB or better
+4.75 to +7.75 MHz-40 dB or better

CCIR System B
-1.25 MHz and Below-20 dB or better
-0.75 to +4.8 MHz-23 dB or better
+4.8 to +5.0 MHz+0.5 to -1.5 dB
+5.50 MHz-30 dB or better

CCIR System D/K
-1.25 MHz and Below-20 dB or better
-0.75 to -0.5 MHz+0.5 to -2.0 dB
-0.5 to +5.5 MHz±0.5 dB
+5.5 to +6.0 MHz+0.5 to -3 dB
+6.5 MHz-30 dB or better

CCIR System I
-1.75 MHz and Below-20 dB or better
-1.25 to -0.75 MHz+0.5 to -2.0 dB
-0.75 to +5.0 MHz±0.5 dB
+5.0 to +5.5 MHz+0.5 to -2.0 dB
+6.0 MHz-30 dB or better

CCIR System K1
-1.75 MHz and Below-20 dB or better
-1.25 to -0.75 MHz+0.5 to -2.0 dB
-0.75 to +5.0 MHz±0.5 dB
+5.5 to +6.0 MHz+0.5 to -3.0 dB
+6.5 MHz-30 dB or better

Aural Performance
Frequency Stability±20 Hz, relative to visual carrier frequency
Modulation Capability±120 kHz peak deviation (at any modulation frequency)

Wideband Performance(at ±75 kHz deviation)
Input Level1 VRMS nominal into 75 ohms
Frequency Response±0.1 dB, 50 Hz to 50 kHz
±0.5 dB, 50 to 110 kHz
FM Noise-70 dB or better after de-emphasis
Distortion (THD)0.25% or less, 50 Hz to 15 kHz
0.75% or less, 15 to 50 kHz
Distortion (IMD)0.5% or less, (SMPTE 4:1 test signal)

Monaural Performance(at ±50 kHz deviation system B/I/K1/D at ±25 kHz deviation system M/N)
Input Level0 to +16 dBm (adjustable) into 600 ohms
Pre-emphasisFlat, 50 or 75 µs selectable
Frequency Response±0.5 dB, 30 Hz to 15 kHz
Distortion (THD)0.2% or less, 30 Hz to 15 kHz, after de-emphasis
FM Noise-60 dB or better, after de-emphasis
AM Noise-55 dB relative to 100% modulation
AM Synchronous Noise-40 dB or better, relative to 100% amplitude 
modulation(4)

Subcarrier (2 inputs)
Input Level1 VRMS nominal (adjustable) into 75 ohms
Frequency Response±0.5 dB, 20 to 110 kHz


Multichannel Audio Sound Systems
 BTSCDual CarrierNICAM
Frequency Response±0.1 dB (A)±0.5 dB (B)±0.5 dB (B)
Harmonic Distortion0.5%0.5%0.5%
Input Impedance75 ohms600 ohms600 ohms
Input Level1 V peak10 dBm(C)
Stereophonic S/N (D)55 dB(C)(C)
Signal to Noise: (Either Channel)N/A60 dB(C)
Stereo Separation40 dB (E)40 dB typical
32 dB minimum
(C)
Main to Sap Crosstalk50 dBN/AN/A
Stereo to Sap Crosstalk50 dBN/AN/A
Sap to Stereo Crosstalk60 dBN/AN/A
Channel CrosstalkN/A60 dB60 dB
Carrier Levels (F) -10 dB-13, -20 dB-13, -20 dB
Aural Intermodulation Products(G)N/A-60 dB-60 dB


Service Conditions
Ambient Temperature Range932 to 122° F (0 to 50° C)
Ambient Humidity Range0 to 95% relative humidity, non-condensing
AltitudeSea level to 10,000 ft. (3,048 m)
Electrical mRequirements:208/240 V, ±10%, 3-phase, 60 Hz, 480 V, ±10%, 3-phase, 60 Hz, 380/415 V, ±10%, 3-phase, 50/60 Hz, 4-wire


NOTES:
(A) Wideband 50 Hz to 50 kHz
(B) 30 Hz to 15 kHz
(C) Encoder/decoder dependent
(D) Measured in left or right channel
(E) Equivalent mode
(F) Relative to peak visual carrier
(G) Relative to peak visual carrier. Measured using 2-tone test with carrier levels indicated above


(1) After initial aging of 60 days.
(2) Variation of peak output power with a change in average picture level from black to white (0% to 100%).
(3) Peak-to-peak variation of peak sync voltage during one field using a flat field test signal, per EIA-508.
(4) Response specified for transmitter operating into a resistive load of 1.05:1 VSWR or better with Harris supplied diplexer and diplexer equalizer.
(5) Measured using a 20% peak-to-peak amplitude swept video modulation with pedestal set at 10%, 50% and 90% APL. All percentages relative to a blanking-to-white excursion.
(6) Measured with a 5 step staircase signal from 75% to 12.5% of peak sync level. Subcarrier modulation level at 12.5% peak-to-peak. 
(7) Average picture level defined as the pedestal level over 4 horizontal lines set to 10%, 50% and 90% of maximum white level with every fifth line activated with standard linearity signal of Note
(8) Measured with 5 step staircase signal. Test signal #3 CCIR REC. 421-3.
(9) Derate 2° C per 1,000 ft (305 m) above sea level.

Sales Contacts
  • North America +1 800 231 9673
  • Caribbean and Latin America +1 786 437 1960
  • Europe and Africa +44 118 964 8200
  • Middle East and South Asia  +971 4 433 8250
  • Asia, Pacific Rim +852 2776 0628