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Sonifex RB-TGHDX
Mutli-Channel HD Tone Generator with XLR Digital Outputs


Sonifex's RB-TGHD is an 8-channel audio tone generator that provides line identification for multi-channel audio systems...
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Sonifex RB-TGHDX 1
Sonifex RB-TGHDX 2
Sonifex RB-TGHDX 3
Sonifex RB-TGHDX 4
Our Price: $1,370.00
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Sonifex RB-TGHDX
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Sonifex's RB-TGHD is an 8-channel audio tone generator that provides line identification for multi-channel audio systems, including 5.1 and 7.1 surround sound typically used in high definition television broadcasts.  By using a range of widely accepted industry standard tone sequences such as the EBU R49, GLITS and BLITS tones, channel identification and associated levels can be determined easily.  Correct channel configuration in fold-down mixes can also be highlighted when a broadcaster needs to mix several audio channels into a stereo feed.

The RB-TGHD caters for 2-, 4-, 6- and 8-channel configurations and all of the available audio tone sequences for each channel configuration can be cycled through automatically, or selected manually, and a loop mode allows patterns of tones to be repeated.  A bank of 4 pushbuttons on the front panel sets these options and the associated LEDs indicate the current setting.  A set of 8 LEDs on the front panel indicate which channel is currently outputting audio with the LEDs numbered as both 1-8 and as L, R, C, LFE, LS, RS, LR and RR.

The RB-TGHD is available in two variations, each providing both analogue and digital audio outputs.  The RB-TGHDX offers balanced AES/EBU digital audio outputs on 3-pin XLR connectors and the RB-TGHDB has unbalanced digital audio outputs on BNC connectors.  Both types provide 8 balanced analogue outputs on 3-pin XLR connectors.

A wordclock synchronising input on BNC connector allows the digital outputs to be synchronised to an external signal.  Optionally, an RB-SYA or RB-SYD video sync board can be fitted, to synchronise the unit to either an analogue or digital sync signal.  A SYNC LED on the front panel indicates when the unit is synchronised to the external signal.

The audio level line-up of the RB-TGHD can be adjusted from 0 dBu to +24 dBu in 1 dBu steps (ref FSD) to suit different environments via the front panel mounted DIP switches.  Changing the audio line-up does not affect the gain relationship between each channel, ensuring that correct levels through the target system can be maintained.  These switches also provide settings for digital sample rate which ranges from 32 kHz to 192 kHz, and digital sample width which is either 16-bit or 24-bit.

The serial port allows the RB-TGHD to be connected to a PC running SCi, the Sonifex Serial Control Interface.  This allows full control of the unit and the ability to generate a user defined audio tone sequence.  In addition, a remote port on the rear provides a simple interface to control the unit and has several outputs to indicate which tone sequence is active.

NOTE: This product has settings that can be adjusted using the Sonifex SCi (Serial Control Interface) software.

Technical Specifications:

  • Analogue Output Impedance: <50 Ohms
  • Digital Output Impedance: 110 Ohms balanced, 75 Ohms unbalanced
  • Dynamic Range: >100dB
  • Max Output Level: +24dBu
  • Distortion & Noise: <-85dB THD+N at 1kHz
  • Crosstalk: <-110dB (20Hz to 20kHz) for analogue outputs

Front Panel Controls:

  • Channels: 2, 4, 6 or 8
  • Sequence Mode: Auto or Manual
  • Sequence:
    EBU R49 stereo line-up
    GLITS stereo line-up
    BLITS stereo line-up
    EBU R49 channel ID
    BLITS channel ID
    User defined (using SCi)
  • Sequence Loop Mode: On or Off (enables looping of current sequence)
  • Digital Sample Frequency: 32kHz, 44.1kHz, 48kHz, 88.2kHz 96kHz, 176.4kHz or 192kHz (via DIPswitches)
  • Digital Sample Width: 16bit or 24bit (via DIPswitches)
  • Audio Line-Up: 0dBu to +24dBu in 1dB steps ref FSD (via DIPswitches)
  • Channel Identification: LEDs indicating 1-8 and L, R, C, LFE, LS, RS, LR and RR

Rear Panel Connections:

  • Analogue Outputs: 8 x XLR 3 pin male (balanced)
  • Digital Outputs: 4 x AES/EBU XLR 3 pin male (balanced) or 4 x BNC female (un-balanced)
  • Digital Input: Wordclock on BNC
  • Remote I/O Port: 25-way ‘D’-type socket 17 inputs, 7 tally outputs
  • Serial Comms Port: 9-way ‘D’-type socket
  • Mains Input: Filtered IEC, continuously rated 85-264VAC, 47-63Hz, 60W peak, 30W average
  • Fuse Rating: Anti-surge fuse 1A 20 x 5mm

Physical Specifications:

  • Product Dimensions*: 19" W x 6.2" D x 1.7" (1RU) H (48 x 15.8 x 4.3 cm)
    *Note that this product is deeper than standard Redboxes
  • Dimensions in Box: 23.2" W x 10.8" D x 4.3" H (59 x 27.5 x 11 cm)
  • Net Weight: 2.9 lbs (1.3 kg)
  • Gross Weight: 4.2 lbs (1.9 kg)

Accessories (SOLD SEPARATELY):

  • RB-SYA: Analogue video sync board (NTSC, PAL & SECAM)
  • RB-SYD: Digital video sync board (SD-SDI & HD-SDI)
  • RB-RK3: 1RU Rear panel rack kit for large Redboxes

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