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Manufacturers of Audio Products for AV,
Installed Sound, Broadcast Radio & Broadcast TV

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Audio Interfaces - Tone Generators


RB-TGHDX
RB-TGHDX Iso
RB-TGHDX Front
RB-TGHDX Rear
Iso View
Front View
Rear View
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High resolution image of front view >>
High resolution image of rear view >>


The RB-TGHDX Multi-Channel High Definition Tone Generator.

24 bit 192kHz logo RM-RK3 logo

RB-TGHDX Multi-Channel High Definition Tone Generator

The 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 0dBu to +24dBu in 1dBu 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.

GLTS Stereo Line-Up Sequence Chart

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EBU R49 Stereo Line-up Sequence Chart

See larger image >


BLITS Stereo Line-up Chart

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BLITS Channel Identification Sequence Chart

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Phase Sequence Chart

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EBU R49 Channel Identification Sequence Chart

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SCi logoThis product has settings that can be adjusted using the Sonifex SCi (Serial Control Interface) software. To download a copy of the SCi software, please use this link >

SCi Screens


Sci image - RB-TGHDX

Control Screen.

Sci image - RB-TGHDX

User Sequence Screen.

Sci image - RB-TGHDX

Miscellaneous Screen.

Technical Specification For RB-TGHDX

Analogue Output Impedance:
<50Ω
Digital Output
Impedance:
110Ω balanced
75Ω 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
Phase
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
   

Equipment Type

RB-TGHDX Multi-Channel HD Tone Generator with XLR Digital Outputs
   

Physical Specification

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

Accessories

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

More Information About This Product

  • Brochure
  • Handbook
  • Accessories & Spares
  • Software Updates
  • Example Of Usage

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Sonifex Ltd. 61 Station Road, Irthlingborough, Northants, NN9 5QE, UK. Tel: +44 (0)1933 650700 Fax: +44 (0)1933 650726 EMail: sales@sonifex.co.uk