Vision frame systemHD symbolSD symbolRemote control symbol

VDA-VF

What is it?

VDA-VF analogue video distribution amplifierHD/SD analogue video distribution amplifier with remote control.

Reason to choose it...

You'll get up to 12 outputs – that's the most we've ever had on an analogue DA. Plus you can use it to distribute any analogue source - whether HD or SD, video or reference. You get remote control of gain, equalisation and clamp too.

Ideal for...

Distribution of SD Black and Burst or HD tri-level syncs reference or analogue video. In fact it's perfect for supplying the station reference to up to 12 Vision frames, with the frame then distributing that reference to each card that needs it. See who's using our VDAs.

Control it...

Try out the VDA-VF VisionWeb demo (opens in new window) – you'll see how easy it is to operate the VDA-VF from your web browser, while exploring the full functionality of the product.

Got a question?

We would be very happy to answer any questions you've got about the VDA-VF. 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

  • Analogue video distribution amplifier with remote control
  • Use it to distribute SD Black & Burst or HD tri-level syncs analogue references, or SD or HD analogue video (composite and component)
  • Provides multiple outputs of analogue source - maximum of 12 outputs with a loop-through of the differential input
  • Suitable for long cable runs: correct distortion to the analogue signal with high quality equalisation for up to 300m cable length
  • Gain adjustments of +/-3dB in 0.1dB steps
  • Use the clamp to compensate for differences in ground voltage and remove hum on the signal
  • Inputs and outputs accessed by using an appropriate rear module (either VR17 or VR18)
  • Housed in Vision rack frames
  • Space-saving: 96mm x 325mm card allows up to 20 VDA-VF in 3U (ten with VR17 rear module fitted)
  • Flexible control and monitoring: frame integrated control panel, VisionPanel remote control panel, SNMP, ASCII and JSON protocols or the web browser-based VisionWeb Control
  • Five year warranty (with product registration)

Details

Distribute any analogue source

The VDA-VF video distribution amplifier has been designed to provide multiple outputs of analogue sources.

Its main application is to distribute SD Black and Burst or HD tri-level syncs reference. With the Vision 3 frame including a common dual reference, the VDA-VF can be used to distribute the station reference to the frame itself – with one VDA-VF able to supply a reference feed to up to 12 Vision frames and the frame then distributing that reference via the backplane to each card that needs it.

The VDA-VF can also be used to distribute SD analogue composite or HD or SD analogue component video. Should you need to distribute RGB, YUV and Y/C video, multiple VDA-VF will be required (one for each component).

Get up to 12 outputs

The VDA-VF gives a maximum of 12 analogue outputs.

Decide how many outputs you need and how many boards you'd like to fit in a frame, and then select the rear module that meets those criteria. Using the single slot VR18 gives five analogue outputs, while 12 outputs (the most Crystal Vision has ever offered on an analogue DA) are possible with the dual slot VR17.

The VDA-VF includes a loop-through of its differential input, which is independent of the VDA-VF and so allows you to remove the card without losing the looped-through source – and potentially your station syncs feed.

Maximise the quality of your signal

The VDA-VF ensures a high quality signal with the differential input removing waveform distortion as well as protecting against crosstalk from the mains.

Further signal improvements can be achieved using the gain adjustments of +/-3dB in 0.1dB steps, along with high quality equalisation which will correct any distortion to the analogue signal caused by up to 300m of cable length, making the VDA-VF suitable for applications involving long cable runs.

The inclusion of a very effective clamp means it can compensate for differences in ground voltage by removing hum already on the signal. The clamp can be switched off should you not want anything to change your signal or if your signal is not standard analogue video.

An automatic sync filter removes chroma information from the sync separator input on SD signals to prevent large negative excursions adversely affecting the DC restoration.

Crystal Vision frameSave rack space - and get flexible control

Fitting in the standard Vision frames (currently available in 3U size), the VDA-VF is a space-saving 96mm x 325mm card that sits in one frame slot - allowing up to 20 DAs in 3U, depending on the rear module fitted.

All control is done remotely. The control and monitoring options for the VDA-VF include an integrated control panel on the Vision frame, the VisionPanel remote control panel, our ASCII and JSON protocols, SNMP and the VisionWeb web browser control.

In addition to the remotely adjustable gain, equalisation and clamp, there is remote indication of input present and input format.

 

Specs

MECHANICAL

Standard Vision card 96mm x 303mm (96mm x 325mm including finger pull)

Weight: 150g

Power consumption: 4 Watts

ANALOGUE VIDEO INPUT

One differential SD or HD analogue input

SD composite video input, 1 volt with syncs. SD or HD component video up to 30MHz bandwidth. SD Black and Burst or HD Tri-level syncs reference

Analogue composite video formats: PAL 625i/50  and NTSC 525i/59.94 and 525i/60

Analogue component video formats: SD 625i/50, 525i/59.94 and 525i/60. HD 720p50, 720p59.94, 720p60, 1080i 50, 1080i59.94, 1080i60, 1080p23.98, 1080p24, 1080p25, 1080p29.97 and 1080p30

Passive loop-through does not require VDA-VF to be fitted. Loop-through requires external 75 ohm termination

ANALOGUE VIDEO OUTPUTS

Up to 12 analogue outputs depending on frame rear module used: five outputs with VR18 and 12 with VR17

PERFORMANCE

Input Return Loss: >31dB to 10MHz

Output Return Loss: >42dB to 10MHz

Frequency Response: +/-0.1dB 0 to 6MHz,+/-0.2dB 6 to 10MHz, +/-1.5dB 10 to 30MHz

Differential Gain: <0.3% at 5MHz

Differential Phase: <0.6 degrees at 5MHz

Signal to Noise Ratio: >66dB to 6MHz

Cable equalisation: Belden 8281 adjustment up to 300m

Gain adjustment: +/-3dB adjustment in 0.1dB steps

Adaptive clamp can be switched on (DC-coupled) or off (AC-coupled)

Automatic sync filter removes chroma information from the sync separator input on SD signals (only) to prevent large negative excursions adversely affecting the DC restoration

DELAY THROUGH BOARD

20ns

LED INDICATION OF:

Power okay

REMOTE CONTROL

Control from integrated control panel on Vision frames and remote panel

VisionWeb Control is available via the web server on the frame and allows control and monitoring using a standard web browser on a computer, tablet or phone

SNMP monitoring and control available as standard

Control using ASCII and JSON protocols

Remote indication of input present and input format (HD, SD or unknown) and remote adjustment of gain, equalisation and clamp

NB. No board edge control available

 

What outputs do I get?

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

The Vision rear modules slot on at the back of the frame and typically feature BNC, Micro BNC, D-Type and LC fibre connectors.

There are two rear modules available for the VDA-VF...

VR17 rear module label and connections

More about the VR17

Connectors: 14 BNCs

Frame slots used: 2

Boards in 3U: 10

Why use it: Use it when you want the maximum number of outputs (12) and you're happy to use two frame slots

Also used for: No other boards

 

VDA-VF inputs and outputs with VR17 rear module

RM41 + RM34 rear module label for 3GDA111R

 

VR18 rear module label and connections

More about the VR18

Connectors: 7 BNCs

Frame slots used: 1

Boards in 3U: 20

Why use it: You want to fit the maximum number of cards in the frame and only need five outputs

Also used for: No other boards

 

VDA-VF inputs and outputs with VR18 rear module

RM41 + RM34 rear module label for 3GDA111R

 

For more visual technical information, download the VDA-VF 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 VDA-VF video DA and accessories...

Your contact details
Items for quote

First you need the 96mm x 325mm card...

VDA-VF
Analogue video distribution amplifier with up to 12 outputs and remote control

Next select your frame...

Vision 3
3U frame with active front panel featuring smart CPU and integrated control panel for up to 20 Crystal Vision cards from the Vision range. Includes two PSU3-VF power supplies for redundancy. Allows Ethernet connection to a PC

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

VR17
Two slot frame rear module. Allows ten VDA-VF in 3U. Gives access to one differential HD or SD analogue input, 12 HD or SD analogue outputs and an analogue loop-through (NB. Passive loop still available when VDA-VF removed)
VR18
Single slot frame rear module. Allows 20 VDA-VF in 3U. Gives access to one differential HD or SD analogue input, five HD or SD analogue outputs and an analogue loop-through (NB. Passive loop still available when VDA-VF removed)

Finally - control. Use the frame's integrated control panel, the VisionWeb web browser control or SNMP (both included in the frame for free), or alternatively order the item below...

VisionPanel
3U Ethernet remote control panel with touch screen

 

Who's using it?

With Vision being a brand new system, users of the VDA analogue video distribution amplifiers in the Indigo range include...

    • ABN (Malaysia)
    • Advanced Broadcast Services (UK)
    • Advanced System Integrated Co., Ltd. (Taiwan)
    • A.F.M. Medientechnik (Germany)
    • Al Basrah University (Iraq)
    • Al Jazeera (Qatar)
    • Al Rai Media Group (Kuwait)
    • Altered Images (UK)
    • ANTV (Vietnam)
    • Arabsat (Saudi Arabia)
    • Arqiva (UK)
    • ART TV (Greece)
    • Astro (Poland)
    • ATG Broadcast (UK)
    • AVC (UK)
    • Bắc Ninh TV (Vietnam)
    • Bath Spa University (UK)
    • BBC (UK)
    • BBC Millbank (UK)
    • BBC Northern Ireland (UK)
    • BBC Scotland (UK)
    • BBC Studios and Post Production (UK)
    • Services Sound & Vision Corporation / BFBS (UK)
    • BFE Studio (Austria)
    • BFE Studio (Germany)
    • British Telecom (UK)
    • Calvary Chapel Melbourne (USA)
    • Channel 9 (Greece)
    • Channels Television (Nigeria)
    • Chelsea TV (UK)
    • Chicopee Telecom (USA)
    • Church Conference Centre (Malaysia)
    • Church of Ressurrection (USA)
    • City of Glasgow College (UK)
    • City University London (UK)
    • Closed Caption Latina (Colombia)
    • Comux (UK)
    • Coronation Street/ITV Studios (UK)
    • Crete TV (Greece)
    • Custom Consoles (UK)
    • CVP (UK)
    • Czech TV (Czech Republic)
    • Daktronics (Turkey)
    • dB Broadcast (UK)
    • Dega Broadcast Systems (UK)
    • Denel (South Africa)
    • Digital Garage (UK)
    • Doordarshan Kendra (India)
    • DS Video (UK)
    • Duna TV (Hungary)
    • EastEnders (UK)
    • Elektronika (Slovakia)
    • Emmerdale/ITV Studios (UK)
    • EMMRC - Educational Multimedia Research Centre (India)
    • EMS (UK)
    • Encore Broadcast Solutions (USA)
    • ENGs – Electronic News Gathering Services (Greece)
    • EPIC (UK)
    • ERT (Greece)
    • ESPN Star Sports/Fox Sports (Singapore)
    • E to E (UK)
    • FAL Systems (UK)
    • FB TV (Turkey)
    • Feltech (UK)
    • Finnair (Finland)
    • FMTV (Thailand)
    • FOR-A Italia (Italy)
    • Fountain Studios (UK)
    • Fuji TV (Japan)
    • Gems TV (India)
    • Gems TV (UK)
    • Gibraltar Broadcasting Corporation (Gibraltar)
    • Giga-Com (UK)
    • GigaSat (UK)
    • GMTV (UK)
    • Habertürk TV (Turkey)
    • Hai Duong Radio and Television Station (Vietnam)
    • Hangzhou Justtong Network Technology (China)
    • Hangzhou TV (China)
    • Hanoi TV (Vietnam)
    • HB Communications (USA)
    • HD Vietnam (Vietnam)
    • Hollyoaks/Lime Pictures (UK)
    • Houses of Parliament (UK)
    • Ideal Shopping Direct (UK)
    • INA TV (Greece)
    • Indira Ghandi National Open University (India)
    • INDOTEL (Dominican Republic)
    • International Criminal Court (Netherlands)
    • Interspot (Austria)
    • IPE (UK)
    • IQ Broadcast (UK)
    • JKS Inc. (USA)
    • Kanal 2 (Estonia)
    • Konatus (Turkey)
    • KT - Korean Telecom Media (South Korea)
    • Links Broadcast (UK)
    • LoveWorld TV (UK)
    • Luminus Media (Jordan)
    • Media Broadcast Technology (Vietnam)
    • Mediaspec (UK)
    • Megahertz (UK)
    • MEGA TV (Cyprus)
    • Mitcorp (UK)
    • Molinare (UK)
    • MST (UK)
    • MTV (Greece)
    • MTV+ (Greece)
    • MTVA (Hungary)
    • MTV (UK)
    • National Assembly for Wales (UK)
    • NetPlay TV (UK)
    • News24 (Albania)
    • Nova TV (Bulgaria)
  • ORF (Austria)
  • Oxford Sound & Media (UK)
  • Panorama PVS Ltd. (Jordan)
  • Pinellas County Communications (USA)
  • Playbox Technology (UK)
  • Plazamedia (Germany)
  • PLD Production (Greece)
  • Polish National Film & TV School (Poland)
  • Precision Broadcast Ltd. (UK)
  • Proactive (UK)
  • Prolink Television Facilities (UK)
  • ProSiebenSat.1 Media AG (Germany)
  • Ragdoll Productions (UK)
  • RAI (Italy)
  • Rondo Media (UK)
  • root6 (UK)
  • Roundhouse (UK)
  • Royal College of Music (UK)
  • Royal Opera House (UK)
  • RTC Télé Liège (Belgium)
  • RTP (Portugal)
  • RTVS (Slovakia)
  • Russia Today – London Bureau (UK)
  • RUV (Iceland)
  • Salford City Council Media Enterprise Centre (UK)
  • Sanoma Publishing (Hungary)
  • Sat-Comm (UK)
  • Show TV (Turkey)
  • Siemens (UK)
  • SIS Live (UK)
  • SKAI TV (Greece)
  • Skynet Solutions SRL (Italy)
  • Soc Trang TV (Vietnam)
  • Soico Televisão (Mozambique)
  • South African Air Force (South Africa)
  • Smart TV (UK)
  • Sport TV (Greece)
  • STV (Spain)
  • STV (UK)
  • S.U.-News (Germany)
  • Supersonic TV (Albania)
  • SuperSport (South Africa)
  • SZTV - Szombathelyi Televízió (Hungary)
  • TBS (Taiwan)
  • TCS Telecom e Serv. Srl (Italy)
  • Telemedia (South Africa)
  • Télésambre (Belgium)
  • TeleStudio Modena (Italy)
  • Teltechco (Vietnam)
  • Telewave (Greece)
  • The Hospital Club (UK)
  • The Vígszínház (Hungary)
  • Tinopolis (UK)
  • TJK (Turkey)
  • Toshiba (Poland)
  • Toshiba (UK)
  • The Church of Resurrection (USA)
  • The London Studios (UK)
  • The Military Broadcasting Centre (Vietnam)
  • The One Show (UK)
  • The Reality TV Channel (Greece)
  • TNP Broadcast (UK)
  • TRC (Italy)
  • TRT (Turkey)
  • TSL (UK)
  • Türkmeneli Televizyonu (Turkey)
  • TV 2 (Denmark)
  • TV3 (Spain)
  • TV 360 (Turkey)
  • TV AlHijrah (Malaysia)
  • TVNZ (New Zealand)
  • TVP (Poland)
  • TV Skyline (Germany)
  • UiTM (Malaysia)
  • United Broadcast & Media Solutions LLC (UAE)
  • United Studios (Israel)
  • Universal Media Services (USA)
  • University of East Anglia (UK)
  • University of Essex (UK)
  • University of York (UK)
  • Videocation (Germany)
  • Video Design (UK)
  • Video Europe (UK)
  • Video Tape Products (USA)
  • Viettel (Vietnam)
  • Vinh Puhc TV (Vietnam)
  • Vislink (UK)
  • Visuals (Switzerland)
  • Vizrt (Austria)
  • VSC (UK)
  • VSI (UK)
  • VTC (Vietnam)
  • VTV5 (Vietnam)
  • Vysoká škola Danubius (Slovakia)
  • Westminster Live (UK)
  • WGGB-TV (USA)
  • William Hill (UK)
  • WIN Television (Australia)
  • WJHG-TV (USA)
  • WMBB-TV (USA)
  • WTS Broadcast (UK)
  • Wurmser Aids (UK)
  • Yen Ban (Vietnam)
  • YFM (South Africa)
 

Do more...

 

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