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Showman 5000
5100 SERIES - OFF AIR RECEIVER-DEMODULATOR


Download the PDF brochures for this product (4 Parts)

In an attempt to rationalize our Showman range of products, we have withdrawn the under mentioned units. It should be noted that the stereo versions of the appropriate model will be perfectly satisfactory when used in mono mode. However, where applicable, NICAM Error Count now comes as standard on the SM5000 series instead of as previously, an optional extra.

The following Showman type numbers have now been withdrawn:

    The SM5112 B/G (mono)
    The SM5116 B/G (mono)

    The SM5126 PAL D/K (mono)

    The SM5123 is available to order on a minimum quantity of 12 pieces.

For the monitoring of off air signals in OB applications, or in Studio and Cable Head End applications, the use of high quality off air receiver is essential.

 

In order to meet a number of applications and differing requirements for the various world wide television signal standards, it has been necessary to build into the ubiquitous SHOWMAN a number of 'optional extras' as standard equipment.

 

The SHOWMAN now has 198 preset and easily selectable channels, IF output and an 'F' type antenna input socket. There are Serial as well as Parallel remote control D type connectors. Most of the front panel controls can be remoted via the remote control sockets.

 

By utilizing a lightweight, compact, and reliable switch mode power supply, the SHOWMAN can be operated in most parts of the world as it will accept input voltages of 85 to 260 VAC, 50 or 60 Hz. without the need to change voltage tappings or fuse ratings.

 

The unit meets IEC 850 Safety standards, and also, under the provisions of EU Directive(s) 89/336/EEC and 92/31/EEC, meets the following:

EN 50081-1 General Emissions Standard for light industrial applications
EN 55013 Sound and Television Broadcast Receivers and Associated Equipment
EN 55082-2 Generic Immunity Standard for industrial applications

By offering 4 video outputs, and 4 audio outputs, SHOWMAN obviates the need for output distribution amplifiers, thus reducing installation costs.

SHOWMAN is compact, simple to operate, and offers excellent value for money.

 

Technical Features
TUNING HEAD
 The latest synthesized Tuning Head provides a low noise front end with a good sensitivity, stability and conforming to the latest CENELEC standards. A micro-controller directly accessing the Tuner Head provides a very accurate and stable channel selection.
IF STAGE A phase locked video IF stage has true synchronous demodulation with active carrier regeneration. This gives ultra linear demodulation, good inter modulation performance and excellent pulse response.
VIDEO OUTPUT STAGE The video stage has a high performance amplifier with first class video specification, capable of driving four 75 Ohm outputs.
AUDIO OUTPUT STAGE A quasi split sound processor is incorporated which suits all FM standards including I, B/G and D/K. The FM demodulator is also compatible with the B/G, FM Stereo/Dual Mono system, featuring sound carriers at 5.5 and 5.74 MHz. All audio outputs are electronically balanced and of low impedance. The IEC/EBU 958 Digital Audio Interface is compatible with the industry standard for digital for digital audio as used in CD players, D.A.T's and DCC's. Four XLR output connectors can be user configured to give: dual NICAM o/p, Dual FM plus NICAM o/p, or for the NICAM to default to either FM audio or silence in the absence of a NICAM carrier.
NICAM The NICAM output has an automatic mute which silences digital data and may switch to conventional FM sound when the error rate exceeds the user defined limit. State of the art Bitstream Conversion DAC combined with an integrated 4 times oversampling digital filter gives near CD quality NICAM audio. This obviates the need for a 15KHz low pass filter with inherent phase distortions at higher frequencies. A NICAM QPSK (6.552 or 5.85 MHz) carrier output, and NICAM data and clock outputs are available.
Television standards catered for:
VISION AUDIO MODEL
PAL I FM MONO 5111
PAL B/G FM MONO 5112
SECAM D/K FM MONO 5113
PAL B/G FM STEREO 5114
PAL I FM MONO + NICAM 5115
PAL B/G FM MONO + NICAM 5116
SECAM D/K FM MONO + NICAM 5117
PAL B/G FM STEREO + NICAM 5118
SECAM L AM MONO 5121
SECAM L AM MONO + NICAM 5122
PAL M/N FM MONO 5123
PAL D/K FM MONO + NICAM 5126
 

Consult factory for other options including IF Input models (no tuner)
Techical Specifications

TUNER
Frequency Range 45.25 Mhz to 860.25 MHz (vision carrier)
Frequency Accuracy To within ± 36 KHz of programmed frequency.
Frequency Stability Crystal controlled
Channels Up to 198 Channels, preprogrammed to 'system specific' channel allocations or to consumer requirements.
Input Level 0.2 mV to 30 mV min/max. (-14 dBmV to +29dBmV)
2.0 mV to 10 mV recommended (+6dBmV to +20dBmV)

IF Output
Vision Carrier 38.9 MHz
Impedance 75 Ohms (nominal)
Output Level 0 dBm (typical) for RF inputs > 6dBmV

Sound Carriers

1st. FM

2nd. FM

NICAM
System B/G/H 33.4 MHz 33.16 MHz 33.05 MHz
System I 32.09 MHz - 32.348 MHz
System D/K/K1 33.4 MHz 33.16 MHz 32.5 MHz

Overall Video Performance
Output Level 1 Volt p to p into 75 Ohms
Output Return Loss Ratio > 30 dB (10KHz to 6MHz)
Differential Phase ± 1° (typical)
Differential Gain ± 1% (typical)
Adjacent Channel Rejection >50 dB

Group Delay
System B/G/H CCIR correction applied
System I Flat ± 50nS
System D/K/K1 Flat ± 50nS

Frequency Response ± 1.5 dB 10 KHz to 4.2 MHz
2T Pulse, K Factor <1% (typical)
Pulse to bar Ratio 95 to 105%

Chrominance/Luminance Gain 85 to 105%
Chrominance/Luminance Gain ± 50 nS (no group delay correction applied)

Signal to Noise -53 dB p to p (typical) relative to 700 mV
(+6dBmV RF Input -45 dB rms (typical) 10 Khz to 5 MHz
Audio Standards
MODEL SYSTEM DEMODULATORS
5111 I FM MONO*
5112 B/G FM MONO*
5113 D/K FM MONO*
5114 B/G FM STEREO**
5115 I FM MONO + NICAM
5116 B/G FM MONO + NICAM
5117 D/K FM MONO + NICAM
5118 B/G FM STEREO+NICAM
5121 L AM MONO*
5122 L AM MONO + NICAM
5123 M/N FM MONO*
5126 D/K FM MONO + NICAM
  * On FM Mono units only, the demodulation of a second system standard FM Mono audio can be provided as an optional extra
** Two carrier (Zweiton/IRT) FM Dual Mono/Stereo system.


FM Audio
De-emphasis Time Constant 50 µS
Frequency Response 40 Hz to 15 Khz (<-3dB)
Output Impedance 22 Ohms (electronically balanced output)
Output Level 0 dBm (nominal for ± 17KHz deviation
(0dBm = 0.775 into 600 Ohms)
Total Harmonic Distortion < 1%

Crosstalk Stereo Mode > 30 dB (40KHz to 15KHz)
Mono Mode > 70 dB (40KHz to 15KHz)

Signal to Noise > 63 dB (relative to +50 KHz deviation)
(CCIR 486-3 weighted)

AM Suppression >48 dB
Showman - Ideal for OB Vehicles

Picture courtesy of Sony Broadcast Professional
General Specification
Front Panel
Click image to enlarge.

  • Channel Number Indicator
  • Signal Strength Indicator
  • Programme Select (10)
  • Programme Store
  • Tuning Up/Down
  • Stereo/Mono1/Mono2 Audio Output Select
  • Audio Status Indicators
  • Headphone Selector
  • Headphone Volume Control
  • Power Consumption 30 VA
  • Height 44 mm
  • Width 483 mm
  • Depth 350 mm
  • Weight 3.5 Kg
Rear Panel
Click image to enlarge.

  • Mains Input Connector (IEC) 85-265V AC, 50/60Hz
  • 4 Video Outputs (75 ohm BNC)
  • Antenna Input 'F' Type connector
  • NICAM Data and Clock Output (75 ohm BNC)
  • IEC/EBU 958 Digital Audio Output (75 ohm BNC)
  • NICAM QPSK (6.552 or 5.85 MHz) (75 ohm BNC)
  • FM Audio Outputs (XLR)
  • Stereo Audio Outputs (XLR)
  • 9 Way 'D' Type Serial Remote Control
  • 9 Way 'D' Type Parallel Remote Control
  • NICAM demodulated quadrature signals (75 ohm BNC)

 

 


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11409 West Bernardo Court
San Diego, CA 92127
US Phone: (858) 613-1818 Fax: (858) 613-1815
European Phone and Fax: +44-800-471-9988
NOTE: NEW European Shipping Center - Rotterdam, NL




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