R V R TX10K-KLC Broadcast Systems FM Stations User Manual

: June 13, 2024
: R V R

Table of Contents

R V R TX10K-KLC Broadcast Systems FM Stations
Product Information
Product Usage Instructions
ORDERING INFORMATION
OVERVIWE
Technical Specifications
References
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R V R TX10K-KLC Broadcast Systems FM Stations

Product Information

The K-KLC Series is a family of liquid cooled transmitters manufactured by R.V.R. Elettronica S.r.l. These transmitters are designed to provide compact equipment solutions with power outputs ranging from 10,000W to 50,000W. The use of high efficiency pumps and a low pressure cooling system allows for high energy savings and eliminates the need for forced ventilation. The K-KLC Series transmitters feature a double pump system with automatic switching and diagnostics.

Models

TX10K-KLC: 10,000W Liquid cooled system
TX15K-KLC: 15,000W Liquid cooled system
TX20K-KLC: 20,000W Liquid cooled system
TX25K-KLC: 25,000W Liquid cooled system
TX30K-KLC: 30,000W Liquid cooled system
TX40K-KLC: 40,000W Liquid cooled system
TX50K-KLC: 50,000W Liquid cooled system

Contact Information

R.V.R. Elettronica S.r.l.
Phone: +39 0516010506
Fax: +39 0516011104
Via del Fonditore, 2/2c, 40138 Bologna, Italy

Product Usage Instructions

To use the K-KLC Series liquid cooled transmitters, follow these steps:

Ensure that the transmitter is connected to a suitable power source.
Connect the audio input source to the transmitter using either a balanced (600 ohm) or unbalanced (10k ohm) connection.
Adjust the transmitter settings according to your desired operation mode (Mono, Stereo, Multiplex, SCA, RDS, DARC, Aux).
Monitor the stereo separation, linear cross talk, non-linear cross talk, total harmonic distortion + noise, and inter modulation distortion levels to ensure compliance with ETSI/CCIR/FCC requirements.
Verify that the digital input impedance is within the specified range.
Check the VSWR (Voltage Standing Wave Ratio) and ensure that it is within an acceptable range (1.41:1 with automatic fold-back at higher VSWR).
Monitor the audio output quality and adjust the deviation levels as necessary to achieve optimal performance.
Regularly check and maintain the cooling system, ensuring that the pumps are functioning properly and there are no leaks or blockages in the low-pressure circuit.
In case of any issues or abnormalities, refer to the diagnostics feature of the double pump system for troubleshooting.

For further assistance or technical support, please contact R.V.R. Elettronica S.r.l. at the provided phone and fax numbers.

TX-MODULAR LIQUID COOLED
With the family of RVR’s liquid transmitters based on the U-KLC series, is possible to realize compact equipments up to 50.000W, with high energy savings thanks to the use of high efficiency pumps and no forcing ventilation.
The Cooling system is with low pressure circuit and double pump in automatic switching and diagnostics.
Scalable Solution from 10.000W to 50.000W.
Best transmission quality, at the best market place.
The most flexible combinations available for high reliability and redundancy.
N+1 Configuration available for 24/7 business continuity.
Tunable over the entire FM band 87.5 – 108 MHz, without tuning. Other bands on request.
WEB, SNMP2, GSM, Serial remote controls (option).
Full compliance with EC, FCC and CCIR standards.

Amplifiers

Single amplifier’s unis: from 10.000W to 50.000W.
High-gain with very low input drive power requirement.
Adjustable power output from 10 to 100 %.
Exclusive “Long Life FET” technology for mosfet life extension.

Exciters:

BLUES, TEX, PTX Series depending on client’s requirements and budget.
Single and Dual Drive with automatic or manual changeover.
Fold-back control for effective “VSRW” protection.
Including IAMLC: Intelligent Automatic Modulation Level Control.

ORDERING INFORMATION

R-V-R-TX10K-KLC-Broadcast-Systems-FM-Stations-
FIG-1

OVERVIWE

R-V-R-TX10K-KLC-Broadcast-Systems-FM-Stations-
FIG-2

Technical Specifications

TX15K-KLC

Parameters U.M. Value| Notes
---|---
GENERALS
RF Output power| kW| 15|
Frequency range| | 87.5 – 108 MHz programmable in 1,10 or 1000 KHz steps|
Frequency stability| ppm| ±1|
Nominal frequency deviation| | ±75 KHz (peak)|
Maximum frequency deviation| | ±100 KHz (peak)|
Class of emission| | 180KF8E|
Stereo transmission| | Acc. To ITU-R / Rec. 450 (Pilot tone)|
RF output impedance| | 50 Ω, Unbalanced|
RF output connector| | 3-1/8” EIA Flange|
VSWR| | 1.41:1 with automatic fold-back at higher VSWR|
Frequency control| | Synthesizer µ processor control|
Modulation capability| | ±150 KHz|
Modulation mode| | Mono, Stereo, Multiplex, SCA, RDS, DARC, Aux|
Pre-emphasis Mode| | 0/50 (CCIR) µs, 75 (FCC) µs|
Asynchronous AM S/N Ratio| | ≥ 70 dB unweight, referred to 100% AM modulation at 400 Hz Pre-emphasis an| d without FM modulation
Synchronous AM S/N Ratio| | ≥ 55 dB, reference to 100% AM modulation at 400 Hz, 50 µs Pre-emphasis with| FM modulation at 75 KHz of deviation
Harmonics suppression and Spurious| dB| Typically 85|
Overall efficiency| %| Typically 70/72|
RF Harmonics| | Exceeds ETSI/CCIR/FCC requirements|
RF Spurious| | Exceeds ETSI/CCIR/FCC requirements|
Max Frequency Tolerance| | As per ITU (R)|
Analogue Input Level ±75 Khz (peak) deviation| | -6 dBu – +6 dBu at 1 Khz, 0 dBu|
Digital Input Level ±75 Khz (peak) deviation| | -20.0 dBFS – 0 dBFS (adjustable) at 1 Khz|
MONO OPERATION
S/N ratio| | > 90dB (typical 92dB), 75KHz deviation (30 Hz to 15 KHz base band) rms, unwe| ighted
Total Harmonic Distortion + Noise| %| Better than 0.15|
nter Modulation Distortion SMPTE| | Better than 0.20% (60 Hz / 7 KHz, 4:1, +4|
Frequency Response| | ±0.2dB (30Hz – 15Khz)|
Audio Input Impedance| | 600 Ω balanced or 10 kΩ unbalanced|
MPX OPERATION
S/N ratio| | >90 dB, 75 KHz deviation rmd, unweight|
Total Harmonic Distortion + Noise| %| <0.02%|
Inter Modulation Distortion SMPTE| | <0.02% 60 hz / 7 khz, 4:1, +4dbu|
Frequency Response| | ±0.3dB, 30 Hz to 100 KHz|
Transient Intermodulation Distortion| | 0.03%, 2.96 KHz square wav end 14 KHzsine wave|
STEREO OPERATION
Audio Input Impedance| | 2 K ohm or more|
Stereo FM S/N Ratio unweighted| | >84 dB, 30 Hz to 15 KHz deviation (L or R), rms|
Stereo Separation ((Sine wave))| | ≥ 60 dB (30 Hz – 15 KHz)|
Linear Cross Talk| | Better than 50 dB, referred to 100% modulation (30 Hz to 15 KHz)|
Non-linear Cross Talk| | Better than 50 dB, referred to 100% modulation|
Total Harmonic Distortion + Noise (L or R)| | <0.02%, 60 Hz / 7 KHz, 4:1, +4dBu|
Inter Modulation Distortion SMPTE (L or R)| | ±0.2 dB, 30 Hz – 15 Khz|
Digital Input Impedance| | 110 Ω|