The Platinum™ HTEL series of low- to medium-power VHF ATSC digital transmitters utilizes the same field-proven amplifier modules as the high-power Platinum Series® of digital VHF TV transmitters. The Platinum HTEL series offers high performance and field-proven reliability in a compact package.
Low-power HTEL systems utilize a single cabinet to house the Apex M2X™ exciter, control system and amplifiers. Medium-power systems use a control cabinet and one or two power amplifier cabinets. The control cabinet houses the system controller, exciter, monitoring, control panel, an optional second exciter and a driver with automatic changeover.
Specifications and designs are subject to change without notice.
| HT EL500LS/HS | |
| Visual Power Output (peak, diplexer out) | 500 W |
| Aural Power (diplexer out) | 50 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | Type N |
| Aural | Type N |
| Physical Size (W x D x H) | 26 x 35 x 45 in. (66 x 89 x 114 cm) |
| Weight | 430 lbs (95 kg) |
| Power Consumption (typical): | |
| Black | 2.7 kW |
| HT EL1000LS/HS | |
| Visual Power Output (peak, diplexer out) | 1 kW |
| Aural Power (diplexer out) | 100 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | Type N |
| Aural | Type N |
| Physical Size (W x D x H) | 26 x 35 x 45 in. (66 x 89 x 114 cm) |
| Weight | 450 lbs (205 kg) |
| Power Consumption (typical): | |
| Black | 3.8 kW |
| HT EL2000LS/HS | |
| Visual Power Output (peak, diplexer out) | 2 kW |
| Aural Power (diplexer out) | 200 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 26 x 44 x 72 in. (66 x 112 x 183 cm) |
| Weight | 800 lbs (363 kg) |
| Power Consumption (typical): | |
| Average | n.a. |
| Black | 7 kW |
| HT EL5LS/HS | |
| Visual Power Output (peak, diplexer out) | 5 kW |
| Aural Power (diplexer out) | 500 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 57 x 61.3 x 72 in. (145 x 156 x 183 cm) |
| Weight | 2,000 lbs (909 kg) |
| Power Consumption (typical): | |
| Average | 10 kW |
| Black | 13 kW |
| HT EL5MSLS/MSHS | |
| Visual Power Output (peak, diplexer out) | 5 kW |
| Aural Power (diplexer out) | 500 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 91 x 61.3 x 72 in. (231 x 156 x 183 cm) |
| Weight | 3,560 lbs (1,618 kg) |
| Power Consumption (typical): | |
| Average | 10 kW |
| Black | 13 kW |
| HT EL10LS/HS | |
| Visual Power Output (peak, diplexer out) | 10 kW |
| Aural Power (diplexer out) | 1000 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 57 x 61.3 x 72 in. (145 x 156 x 183 cm) |
| Weight | 2,640 lbs (1,200 kg) |
| Power Consumption (typical): | |
| Average | 20.5 kW |
| Black | 26 kW |
| HT EL10MSLS/MSHS | |
| Visual Power Output (peak, diplexer out) | 10 kW |
| Aural Power (diplexer out) | 1000 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 91 x 61.3 x 72 in. (231 x 156 x 183 cm) |
| Weight | 4,840 lbs (2,200 kg) |
| Power Consumption (typical): | |
| Average | 20.5 kW |
| Black | 26 kW |
| HT EL10DLS/DHS | |
| Visual Power Output (peak, diplexer out) | 10 kW |
| Aural Power (diplexer out) | 1000 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in. |
| Aural | Type N |
| Physical Size (W x D x H) | 91 x 61.3 x 72 in. (231 x 156 x 183 cm) |
| Weight | 3,560 lbs (1,618 kg) |
| Power Consumption (typical): | |
| Average | 20.5 kW |
| Black | 26 kW |
| HT EL20DLS/DHS | |
| Visual Power Output (peak, diplexer out) | 20 kW |
| Aural Power (diplexer out) | 2000 W |
| Connector Size at Cabinet Output (50 ohms): | |
| Visual | 1-5/8 in.
3 1/8 in. at combiner output |
| Aural | Type N |
| Physical Size (W x D x H) | 91 x 61.3 x 72 in. (231 x 156 x 183 cm) |
| Weight | 4,840 lbs (2,200 kg) |
| Power Consumption (typical): | |
| Average | 41 kW |
| Black | 52 kW |
| Visual Performance | |
| Frequency Range | LS 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 Power2 | 3% or less relative to peak sync |
| Variation of Output3 | 2% or less |
| Frequency Response vs. Brightness5 | ±0.75 dB |
| Modulation Capability | 0% |
| Differential Gain6 | 3% or better |
| Differential Phase6 | 1° 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-Linearity8 | 0.5 dB or better |
| Signal-to-Noise (total random and periodic noise unweighted) | -55 dB RMS or better relative to sync peak |
| 2t K-Factor | CCIR-M 1.5%; 2.0% for other systems |
| 20t Gain and Delay Response | 3% or less total baseline distortion |
| Equivalent Envelope Delay | Per CCIR system standard |
| Video Input Level | 0.7 to 2 V, 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 Level | 1 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 Level | 0 to +16 dBm (adjustable) into 600 ohms |
| Pre-emphasis | Flat, 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 modulation4 |
| Subcarrier (2 inputs) | |
| Input Level | 1 VRMS, nominal (adjustable) into 75 ohms |
| Frequency Response | ±0.5 dB, 20 to 110 kHz |
| Multichannel Audio Sound Systems | |||
| BTSC | Dual Carrier | NICAM | |
| Frequency Response | ±0.1 dB(A) | ±0.5 dB(B) | ±0.5 dB(B) |
| Harmonic Distortion | 0.5% | 0.5% | 0.5% |
| Input Impedance | 75 ohms | 600 ohms | 600 ohms |
| Input Level | 1 V peak | +10 dBm | (C) |
| Stereophonic S/N(D) | 55 dB | (C) | (C) |
| Signal to Noise: (Either Channel) | N/A | 60 dB | (C) |
| Stereo Separation | 40 dB(E) | 40 dB typical
32 dB minimum | (C) (C) |
| Main to Sap Crosstalk | 50 dB | N/A | N/A |
| Stereo to Sap Crosstalk | 50 dB | N/A | N/A |
| Sap to Stereo Crosstalk | 60 dB | N/A | N/A |
| Channel Crosstalk | N/A | 60 dB | 60 dB |
| Carrier Levels(F): | -10 dB | -13, -20 dB | -13, -20 dB |
| Aural Intermodulation Products (G) | N/A | -60 dB | -60 dB |
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 E1A-508. |
| 4 | Response specified for transmitter operating into a resistive load of 1.05:1 VSWR or better. |
| 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 definited as the pedestal level over 4 horizontal lines set to 10%, 50% and 90% of maximum white level with every 5th line activated with standard linearity signal of note 6. |
| 8 | Measured with 5-step staircase signal. Test signal #3 CCIR REC. 421-3. |
| 9 | Derate 3.6° F (2° C) per 1,000 ft (305 m) above sea level. |