HD symbolSD symbolRemote control symbol

Q-Down123

What is it?

Q-Down123 short-delay down converter and distribution amplifierHD/SD short-delay broadcast down converter and distribution amplifier.

Reason to choose it...

A unique level of image quality in its price range (with its sophisticated two dimensional filtering which avoids aliasing while retaining picture sharpness) and a short processing delay which makes your system design much simpler. Then there's the flexible outputs – with two loop-throughs plus three SD outputs configurable as mixtures of analogue and digital.

Ideal for...

Any video-only applications where you want to keep the maximum quality of your HD signals when down converting – at a reasonable cost.

Got a question?

We would be very happy to answer any questions you've got about the Q-Down123. Either send us an e-mail or get an immediate response by speaking to us now on our Live Chat...

 
  • Main features
  • Details
  • Specs
  • What outputs do I get?
  • What do I order?
  • Who's using it?

Main features

  • Short-delay broadcast down converter and distribution amplifier
  • Can down convert 720p HD, 1080i HD and SD at both 50Hz and 59.94Hz
  • Get flexible outputs when down converting: configure the three video outputs as mixtures of SD digital and analogue (composite, Y/C, YUV and RGB)
  • Distribute your input signal: with two reclocked loop-throughs
  • Unique level of image quality at this price level - sophisticated two dimensional filtering gives broadcast results without the complication of looking at multiple fields or movement detection
  • Optimise the performance for your material with four different filter characteristics (sharpest, sharp, soft and softest)
  • Short processing delay (just 16 or 52 SD lines) - no need to compensate audio signals for the video delay
  • Match other delays in system: select one of the three fixed video delay settings (minimum, 52 SD lines or frame)
  • Includes HD to SD aspect ratio converter, with 16:9 Anamorphic, 16:9 to 4:3 Letterbox and 16:9 to 4:3 Full Screen with centre cut
  • Inputs and outputs accessed by using an appropriate rear module (either RM34 or RM45)
  • Housed in Indigo rack frames
  • Space-saving: 100mm x 266mm module allows 12 Q-Down123 in 2U (six in 1U and two in desk top box)
  • Flexible control: board edge, GPI, frame integrated control panel, VisionPanel remote control panel, SNMP, Statesman Lite PC software or the web browser-based VisionWeb Control
  • Five year warranty (with product registration)

Details

Keep the maximum quality of your HD signals

Q-Down123 has been designed for broadcasters who want to keep the maximum quality of their HD signals when down converting and simplify their system design.

It combines the three advantages of outstanding picture quality, short processing delay and competitive pricing.

Q-Down123 can down convert 720p and 1080i at 50Hz and 59.94Hz. The down converter is bypassed when the input and output are the same standard so that the signal is passed without degradation.

Q-Down123 is ideal for use in a mixed High Definition and Standard Definition environment and for any areas being converted to HD.

Flexible analogue and digital output combinations

Q-Down123 offers real flexibility when it comes to configuring the outputs - providing two reclocked loop-throughs of the HD or SD input using the RM34 frame rear module, along with three down converted video outputs.

The three down converted video outputs are individually selectable as mixtures of SD digital and analogue, with the analogue video configured as composite, Y/C, YUV and RGB.

By using an alternative rear module - the RM45 - one of the loop-throughs can be exchanged for a dedicated SDI output, thereby increasing the number of applications.

Unique level of image quality in its price range

Using Crystal Vision's proprietary processing, Q-Down123 provides a unique level of image quality in its price range - avoiding aliasing while retaining picture sharpness.

The sophisticated two dimensional filtering gives broadcast results without the complication of looking at multiple fields or movement detection - resulting in reliable, artefact-free conversion.

There's the choice of four alternative filter characteristics - sharpest, sharp, softest and soft - for those who want to optimise the performance for their material.

Easy to keep everything in sync

With Q-Down123 there is no need to compensate audio or other signals for the video delay. The short processing delay of just 16 SD lines (or 52 lines with Letterbox conversions) keeps everything in sync, making your system design much simpler - and makes it easy to detect real lip sync errors when you're monitoring the video and listening to separate audio.

Match other delays in your system

For those that want to match other equipment delays in the system there are three fixed video delay settings: ‘minimum’ (16 or 52 SD lines processing delay, depending on the conversion), ‘fixed’ (52 SD lines) and ‘frame’.

The ‘fixed’ 52 lines delay allows the aspect ratio to be changed live on air without any picture disturbance, while the ‘frame’ of delay can be used to match a variety of equipment or alternatively to connect with equipment that has no delay.

HD to SD aspect ratio conversion - built in

Q-Down123 includes the ability to deal with any HD to SD aspect ratio conversion requirements. You can select a 16:9 Anamorphic output for 16:9 SD systems and either a 16:9 to 4:3 Letterbox or 16:9 to 4:3 Full Screen with centre cut for 4:3 SD systems.

Save rack space

Crystal Vision frameIntegration with the full Crystal Vision interface and keying range is intentionally easy, with this space-saving 100mm x 266mm module housed alongside any other product in the standard frames - available in 2U, 1U and desk top box sizes - and with up to 12 boards fitting in 2U.

Choose your control

The flexible control options include board edge switches, an integrated control panel on the AE frames, the VisionPanel remote control panel, SNMP, the Statesman Lite PC software and the VisionWeb web browser control.

 

Specs

MECHANICAL

Standard Crystal Vision module 266mm x 100mm

Weight: 180g

Power consumption: 10 Watts

VIDEO INPUT

One HD or SD input with reclocking

270Mb/s or 1.5Gb/s serial compliant to EBU 3267-E, SMPTE 259 and SMPTE 292-1

HD cable equalisation up to 140m with Belden 1694A or equivalent (approx. 100m with Belden 8281). SD cable equalisation >250m Belden 8281 or equivalent

Input return loss: -15dB for 50MHz to 1.5GHz

VIDEO OUTPUTS

Two equalised and reclocked loop-throughs of the HD or SD input and three configurable video outputs using RM34 frame rear module, or one loop-through of the HD or SD input, one dedicated SDI output and three configurable video outputs with RM45 rear module

The three video outputs can be a mixture of SDI and analogue (PAL/NTSC, Y/C, YUV and RGB). Outputs configured using on board links

Output frame rate same as input frame rate

270Mb/s or 1.5Gb/s serial compliant to EBU 3267-E, SMPTE 259 and SMPTE 292-1

Component: YUV and RGB 1 Volt +/- 2% into 75 ohm. Syncs on R, G and B

Composite: 1 Volt +/- 2% with syncs into 75 ohm. Selectable setup and Betacam levels

DOWN CONVERSIONS

720p50 to 625/50

720p59.94 to 525/59.94

1080i50 to 625/50

1080i59.94 to 525/59.94

ANALOGUE COMPONENT PERFORMANCE

Sampling: Video input is 10 bit processed for 12 bit output DACs

Frequency response:

Luminance: +/- 0.3dB to 5.5 MHz

Chrominance: +/- 0.4dB to 2.5 MHz

Noise: <-67dB weighted luminance or chrominance

Gain error: <1%

ANALOGUE COMPOSITE PERFORMANCE

Sampling: Video input is 10 bit processed for 12 bit output DACs

Frequency response:

Luminance: +/- 0.3dB to 5.5 MHz

Chrominance: +/- 0.4dB to 2.5 MHz

Noise: <-67dB weighted luminance or chrominance

Differential gain: <2% typ

Differential phase: +/- 1 degree typ.

PICTURE PROCESSING WHEN DOWN CONVERTING

Sophisticated two dimensional filtering gets broadcast results and avoids the complication of looking at multiple fields or movement detection, resulting in reliable, artefact-free conversion with broadcast filter quality

When down converting the performance can be optimised by choosing one of four alternative filter characteristics (sharpest, sharp, soft, softest)

When the input is SD the board processing is bypassed, so that the signal is passed without degradation

HD TO SD ASPECT RATIO CONVERSION

16:9 Anamorphic (for 16:9 SD systems) and either 16:9 to 4:3 Letterbox or 16:9 to 4:3 Full Screen with centre cut (for 4:3 SD systems)

FIXED VIDEO DELAY

There are three video delay settings available:

‘minimum’ – the video processing delay. With an HD input the delay is 16 SD lines (Anamorphic or Full Screen) or 52 SD lines (Letterbox). With an SD input the delay is 3.8us

‘fixed’ (52 SD lines) – this allows the aspect ratio to be changed live on air without any picture disturbance, for example

‘frame’ – can be used to match a variety of equipment or to connect with equipment that has no delay

LED INDICATION OF:

Power supplies on board

Input present

Aspect ratio selection

Vertical filter/Analogue output filter selected

PRESETS

The current board settings can be saved in one of 16 locations to be recalled as required

GPI INPUT LEVELS

Active pull to ground, pulled up to +5V through 10 kohm

GPI OUTPUT LEVELS

Electrically: Open collector transistors 30V, 270 ohm current limit resistors. Pulled up to +5V through 6800 ohm

GPI INPUTS

Four GPI inputs with no assigned function

GPI OUTPUTS

Two GPI outputs - one indicating loss of input

LOCAL CONTROL

Board edge control via two push buttons

REMOTE CONTROL

RS422/485

19200 baud, 8 bits, 1 stop no parity

Control from integrated control panel on AE frames and remote panel

Statesman Lite allows control from any PC on a network

VisionWeb Control is available via the web server on the frame and allows operation using a standard web browser on a PC or tablet

SNMP monitoring and control available as a frame option

 

What outputs do I get?

Signal inputs and outputs are accessed by using an appropriate rear module.

The rear modules slot on to the back of the frame and typically feature BNC, D-Type, 'easywire' DIN 41612, RJ45 and optical connectors. The single and double slot rear modules can be used with all three frame sizes, while the quad slot rear modules just fit the 2U frames.

There are two rear modules available for the Q-Down123...

RM34 rear module label and connections

More about the RM34

Connectors: 6 BNCs

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: It's the standard rear module for Q-Down123

Also used for: No other boards, although does form a double height rear module (in combination with another rear module) for various boards

Real RM34 rear module

RM34 rear module label for Q-Down123

Q-Down123 inputs and outputs with RM34 rear module

 

RM45 rear module label and connections

More about the RM45

Connectors: 6 BNCs

Frame slots used: 1

Boards in 2U: 12

Boards in 1U: 6

Boards in desk top box: 2

Why use it: If you want to swap one of the loop-throughs for a dedicated SDI output

Also used for: No other boards

Real RM45 rear modules

RM45 rear module label for Q-Down123

Q-Down123 inputs and outputs with RM45 rear module

 

For more visual technical information, download the Q-Down123 block diagram.

What do I order?

Request a quote...

Read the ordering info below then fill in this form to request a quote for the Q-Down123 down converter and distribution amplifier and accessories...

Your contact details
Items for quote

First you need the 100mm x 266mm module...

Q-Down123
Short-delay broadcast down converter and distribution amplifier for HD and SD with two reclocked input loop-throughs and three Standard Definition video outputs

Next choose your frame size and power supplies - from 2U to desk top box...

Indigo 2AE
2U frame with power supply redundancy and active front panel featuring smart CPU and integrated control panel for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC
Indigo 2SE
CoolFlow 2U frame with power supply redundancy and active front panel featuring smart CPU for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC
Indigo 1AE
1U frame with active front panel featuring smart CPU and integrated control panel for up to six Crystal Vision modules. Allows Ethernet connection to a PC
Indigo 1SE
1U frame with active front panel featuring smart CPU for up to six Crystal Vision modules. Allows Ethernet connection to a PC
Indigo 1AE-DP
1U frame with power supply redundancy and active front panel featuring smart CPU and integrated control panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC
Indigo 1SE-DP
1U frame with power supply redundancy and active front panel featuring smart CPU for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC
Indigo DT
Desk top box with passive front panel for up to two Crystal Vision modules. Includes fixed power supply
Indigo DTSE
Desk top box with active front panel featuring smart CPU for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC
PSU-160i
160 Watts power supply for 1U (non-DP) and 2U frames. 1U frames require one PSU-160i (no redundancy). 2U frames require either one PSU-160i (no redundancy) or two PSU-160i if power supply redundancy is required

You need a rear module to access your inputs and outputs...

RM34
Single slot frame rear module. Allows maximum number of Q-Down123 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to two reclocked loop-throughs of the HD or SD input and three video outputs (configurable as SDI, PAL/NTSC, Y/C, YUV and RGB)
RM45
Single slot frame rear module. Allows maximum number of Q-Down123 in frame (12 in 2U, six in 1U, two in desk top box). Gives access to one reclocked loop-through of the HD or SD input, one dedicated SDI output and three video outputs (configurable as SDI, PAL/NTSC, Y/C, YUV and RGB)

Finally - control. Use board edge switches, the integrated control panel if you've selected one of the 'AE' frames, a web browser running the free VisionWeb Control (included within the frame software), or alternatively order one of the items below...

VisionPanel
3U Ethernet remote control panel with touch screen
Statesman Lite
Free-of-charge PC Control System - download the latest version
SNMP
SNMP monitoring and control available as a frame option

 

Who's using it?

Users of the Q-Down range of down converters include...

  • 365 Media (Iceland)
  • 4S (Brazil)
  • Advanced System Integrated Co., Ltd. (Taiwan)
  • Arena Television (UK)
  • Atos (UK)
  • ATG Broadcast (UK)
  • AVC (UK)
  • BBC (UK)
  • BBC Millbank (UK)
  • BBC Studios and Post Production (UK)
  • Chaos Visual Productions (USA)
  • Cheju Technopark (South Korea)
  • Coronation Street/ITV Studios (UK)
  • Crosscam (Switzerland)
  • CTV (UK)
  • CVP (UK)
  • Czech TV (Czech Republic)
  • dB Broadcast (UK)
  • Dega Broadcast Systems (UK)
  • Digital Deluxe (UK)
  • Doordarshan Kendra (India)
  • Duna TV (Hungary)
  • EastEnders (UK)
  • Elektronika (Slovakia)
  • Emmerdale/ITV Studios (UK)
  • EPIC (UK)
  • Fal Trading (UK)
  • Fountain Studios (UK)
  • Gearhouse Broadcast (UK)
  • Habertürk TV (Turkey)
  • Hastings College (USA)
  • HB Communications (USA)
  • Hitachi (Germany)
  • Hollyoaks (UK)
  • Indira Ghandi National Open University (India)
  • ITV (UK)
  • ITV Daybreak (UK)
  • KT Media Hub (South Korea)
  • Lime Pictures (UK)
  • Megahertz (UK)
  • Mitcorp (UK)
  • Molinare (UK)
  • MST (UK)
  • MTVA (Hungary)
  • NASA (USA)
  • News 24 (Albania)
  • ORF (Austria)
  • Parliament of Afghanistan (Afghanistan)
  • PALS (Turkey)
  • Peachtree TV (USA)
  • Pinewood Television Studios (UK)
  • Playbox Technology (UK)
  • Proactive UK (UK)
  • Prolink Television Facilities (UK)
  • ProSiebenSat.1 Media (Germany)
  • Pro Video Sales (USA)
  • Red Bee Media (UK)
  • RTC Télé Liège (Belgium)
  • RTP (Portugal)
  • RTV Slovenija (Slovenia)
  • Scottish Parliament (UK)
  • Sentinel Broadcast (UK)
  • Show TV (Turkey)
  • SIS LIVE (UK)
  • SKAI TV (Greece)
  • Snader (USA)
  • Sony Europe (UK)
  • Studios A/S (Denmark)
  • STV (Spain)
  • TBS (USA)
  • Teddington Studios (UK)
  • Télésambre (Belgium)
  • Televideo (UK)
  • Telewave (Greece)
  • The Hego Group (Czech Republic)
  • The London Studios (UK)
  • The Moving Picture Company (UK)
  • The One Show (UK)
  • TNT (USA)
  • Travel Channel (UK)
  • TRT (Turkey)
  • Turner Broadcasting System, Inc. [Network Operations Division] (USA)
  • TV 2 (Denmark)
  • TVNZ (New Zealand)
  • TV Skyline (Germany)
  • TV SYD (Denmark)
  • University of Central Florida (USA)
  • University of East Anglia (UK)
  • University of Essex (UK)
  • University of North Carolina Wilmington (USA)
  • University of Teeside (UK)
  • University of York (UK)
  • Vermantia Media Group (Greece)
  • Westminster Live (UK)
  • WGGB-TV (USA)
  • West Ent Productions (UK)
  • WMBB-TV (USA)
  • WMGT-TV (USA)
 

Do more...

 

Explore more...

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