Welcome to Murraypro electronics. With 40 years experience developing
broadcast television test, monitoring and generation equipment, our products
are designed for you.
Standard Display connectors
Test Chest is “First out of the blocks” by 10s of seconds…..
SDI Error Logger Tri-level Syncs Gen & analysis 4 Hour endurance
Even ‘out of Gamut’ (illegal) signals are easily displayed
16 channel mode too
a) TRS:  =  SAV or EAV error.  b) CRC:  =  Y or C checksum error. c) ANC:  =   Ancillary data error. d) EDH:  =  AP or FF CRC error. e) STD:   =  Standard format error.                  
User Programmable 3G-HD?  1.5-HD?   720-SD?    CVBS?     HDVI graphics?      Comp Sync?       Tri-Level?        AES?         SPDIF?   “Which-Wire?”      tells you        FAST! Mini in-vision histogram Audio PHASE (Does just what it says!) The handy Audio-POD is included TDR investigation detecting the load anomaly caused by the erroneous insertion of a single ‘50 ohm elbow’ down 100M terminated 75R coax.
Touch-screen control.  Intuitive feedback flags unusual settings.
Audio POD locks securely to Test Chest ‘RAW’ 1080i HD signal and Jitter being    monitored using the  EYE~POD accessory Field programmable IDENTs >...Travelling Puck.........> with   “Flash” and “Click” Award winning Cable length comparator in action Our flash of inspiration Custom case is included Die cut protective foam Bright & clear picture Highest Quality ‘3G’ BNCs USB, Audio & POD i-face Ports Ch 3     =   Muted! Ana’lg   =   Muted! EmB’d  =   NOT Gp1! NO nasty shocks! Test Chest
NOW you will have no worries about ‘which version’ to buy.    With Test Chest  there are no ‘entry level’ options, or any expensive post delivery ‘Option’ shocks. Test Chest IS supplied fully loaded,   and  everything needed is included as standard.
   Quick and very easy to use, the amazing Test Chest boasts instantaneous Audio + Video generation and Monitoring. NO tedious boot-up means Test Chest is “First out of the blocks” every time by 10s of seconds, and it’s intuitive touch-screen speeds Engineers to the required function, saving precious time and giving their investigations a real head start.    10bit precision signal generation is standard with Test Chest, as are the analysis utilities which are displayed on it’s superb 5” high resolution touch screen Monitor screen, and stereo sound too (when present). Ease of use and protection whilst in service are serious matters, so Test Chest is fitted with ‘Ez-Grip’ resillent rubber end sleeves; these  assist grip, and provide additional protection against everyday knocks and bumps.  During transportation your Test Chest’s tough extruded alloy housing is cradled within a customised go-anywhere foam lined ABS Carry-case for complete protection.     Our unique Which-Wire? auto-detect operation has now been extended even further, embracing PC-HDVI sources; so that now your portable Test Chest automatically awakens from slumber, identifying any 3G, HD, SD, CVBS, HDVI, Tri-level/Mix Sync, AES or SPDIF signal that is applied to it’s IP!     Test Chest automatically selects the optimum viewing mode to display the applied signal on it’s  the 800x480 pixel high resolution LCD screen. It matters not whether it be a video image in TV format, a sync signal in WFM mode, or digital audio as a histogram; each is displayed with on-screen information declaring the nature of the detected Source, and it’s standard. ALL THIS in just a couple of seconds from a cold start, which is pretty amazing to watch!    Audio is supported powerfully as well, with the 2W stereo speakers bursting into action when embedded audio is present and the volume control is advanced.    Test Chest uses only the highest quality 75 ohm precision 'in-line' BNC connectors which are characterised for minimum return loss at 3G frequencies; and we only fit connectors that fully support the full length of the BNC’s centre socket too, to prevent contact splaying in service. Nothing else will do! Finger-tip control   The Test Chest is configured by means of the LCD touch screen. If hibernating, the Unit awakens instantly upon a light touch to the panel, and a confirming touch will display the Home Page menu with none of the tedious 'boot-up' delay of a PC.  Test Chest retains it's last test configuration in non-volatile memory and this is instantly recalled at power up, so the TSG is functional even before any menu selections. From this point on, navigation via the intuitive interactive touch-screen Menus to the required mode is both speedy and logical.   The interactive Menu provides instant visual feed back of any ‘unusual’ setting.  May be a configuration has been set that differs from the ‘default’ set up;  perhaps Embedded Audio inserted into Group 3 (rather than the usual Group 1) for example, would be flagged on the Menu in high visibility yellow. NO Boot delays   Flowing initial power initialisation, your Test Chest will be ready for action in a couple of seconds ~ no fibbing! Test Chest's mode-tracking Menu changes to provide you with the next field of context-sensitive options, furnishing virtually instantaneous  configuration to the required mode with only the light "tap" of a finger. When, a few milli-seconds later, the on-screen banner refreshes to confirm your revised setting, that operational mode HAS already changed. With no internal PC engine to tediously configure, it really IS  that quick! There are NO unlabeled "configurable hot-keys" here, just incredibly fast, ’finger-intuitive’ configuration and positive operation. Please take a moment to view our informal video, which briefly introduces the main features of Test Chest, and gives a  real time demonstration of it's amazing speed of operation. SIMULTANEOUS GENERATION & MONITORING   Test Chest's Generation mode and it’s Monitoring mode function are totally independently.  This means for example, that Test Chest has the very powerful ability of being able to operate on two different standards simultaneously, so it is entirely practical to generate a Test signal with embedded audio in perhaps a 3G format, whilst simultaneously examining a Composite video input on the LCD monitor, and monitoring balanced analogue stereo on the twin speakers!     To assist Operational use by Staff when a variety of Standards are in common use, Test Chest supports 10 separate preset set-ups, each instantly recalled from non-volatile memory..........so, pretty versatile?  AUTOMATICALLY IDENTIFY SOURCES   Just plug your unknown source into the "Which-Wire?"  input and Test Chest automatically powers-up to show the picture with embedded sound (when present), and an informative  banner showing the detected standard. That's it, all done and dusted, hands free, in a couple of seconds! Murraypro’s unique “Which-Wire?” BNC input detects SDI inputs at 3G, HD & SD, as well as CVBS, Tri-Level and Composite Sync, Unbal-AES, SPDIF, and now even HDVI sources are detected and identified as such all totally automatically.   When Composite Reference (Black/Colour Black) or Tri-Level Syncs are detected Test Chest will automatically switch it’s display to ‘WFM’ mode for you; after all you won’t learn much about ‘Reference syncs’ by just looking at black level on a TV Monitor!   WW? detects when an AES or SPDIF ‘digital’ audio input is presented, and will automatically preset the Test Chest audio histogram’s metering to the ‘AES Monitoring’ mode for you.   After removal of the Which-Wire?’s input signal your Test Chest will automatically turn off, conserving battery power and ready  to await it's next 'mystery input'.   As a matter of fact, Test Chest’s ‘Stand By’ power drain is so low that it could be waiting for over a year, and still be operational!   NO buttons to press, or forget to turn off.....what could possibly be quicker or easier? VIDEO MEASUREMENT MODES.   Test Chest incorporates powerful WFM and Vectorscope facilities covering operation with ‘finger-free’ auto-selection between HS/SD- SDI & analogue Standards. In SDI modes the WFM may be locked to an External Sync Reference, and the gain of the vectorscope may be increased too, to assist when checking camera Black & White Balance set up.   A neat trick offered by the Test Chest is the ability to listen to an audio signal presented to the main IP, and enabling the Unit to be used as an emergency audio signal tracer. WHY Analogue/Composite? .....WHAT POSSIBLE USE IS THIS IN OUR ‘DIGITAL’ TV STATION?   Consider your Reference Sync distribution, is this not still firmly entrenched in the analogue domain? Whilst it is undeniably true that most operations today are ‘Digital’, your Reference Black or Tri-Level sync trains are ANALOGUE.......only Kit with analogue input capability can function usefully here; use SDI Kit, and you will see nothing!     Now there’s no need to lug a separate Scope with analogue capability around with you when chasing ‘Reference Problems’; using your trusty Test Chest - you’ve already got one! GENERATION MODES.  Test Chest is extremely fast to use when generating signals. Using new-generation PGA Logic, which requires no time-consuming 'boot up', it is configured via the LCD Touch Screen, rather than the tedious process of configuring via soft keys, using an on-board computer.   Test Chest generates Test Signals or performs Measurements for you on any Standard, 3G-HD, 1.5G-HD, SD-SDI or CVBS, immediately following the entry of  your command........no fibbing..........wow!   Test Chest may be Genlocked (Slaved) to an external Reference signal, and used to feed a Mixer input, for example. External Reference signals may be Tri-level, ‘Colour Black’ or Mixed Syncs, and are fed to BNC2.   Test Chest generates a wealth of Industry standard video signals, each with 10 bit precision, in 3G-HD, 1.5-HD or  270MB SD. For all those "down the line" applications, a User-programmed Ident may be overlaid too, providing a unique source identification that is easily field modified. A continuously moving puck may be added to any of the test signals generated, catching downstream MPEG motion artifacts and Synchroniser freezes. A circle of 16:9 or 12:9 format may be inserted, to confirm the aspect ratio of the following Programme material, or for checking local Monitors. A special “Active Picture” cursor may be over-laid on the output video too. This becomes an  especially useful test source when investigating down-stream equipment that is cropping active picture on one, or more edges! On SD 50i & 60i standards, a simultaneous parallel Composite Video output is available too. On any HD standard, the BNC 3 Composite OP will be muted and SUBSTITUTED  with Tri-level syncs of that standard. VIDEO Monitoring   Test Chest embodies waveform monitoring with both conventional WFM and Vector displays, in addition to it's 800x480 TV screen mode. The TV Monitor mode auto-switches to display any input signal, and declares the detected TV standard on a Banner at the top of the screen.   An Audio mini-histogram may also be displayed that indicates the presence, or otherwise, of an accompanying embedded audio input signal, even when the Test Chest internal stereo loudspeakers are muted. The histogram scaling and ballistics may be preset for PPM or VU characteristics, following the configuration pre-selected in the dedicated audio metering menu.   Test Chest’s image processing has been designed to provide optimum quality images on the internal 800 x 480 pixel LCD, whilst mindful of the conflicts between ‘latency’ and battery drain. The maximum LCD latency is normally around 1 field (with interlaced sources). Power hungry interpolation techniques employing multi-frame storage and digital multiplication have been shunned in favour of direct ratio-metric interpolation. This is a neat solution with the 5” panel that trades only a modest increase in interpolation artifacts, against a major improvement in both processing speed and power economy.   Not only does Test Chest switch between SDI and Analogue mode transparently, but unlike rival Products it produces crisp WFM traces of Tri-level/Composite sync or CVBS signals, including the colour burst (where present).   Monitoring of both digital and Composite analogue video input signals embrace the Industry standard Vector display and H & V Waveform modes, whilst alternative YRGB, RGB, or YCrCb sequenced Parades are crisply presented too. The WFM display may be locked to an External  Reference to check phasing.  AUDIO MODES   The ultra-flexible Test Chest satisfies your immediate day-to-day Maintenance audio requirements too, covering Embedded audio, AES/SPDIF  streams, and Analogue Stereo as well.  These  Balanced AES and Analogue Ports are most easily accessed via the versatile AUDIO-POD interface which is included with Test Chest, mating with the audio D25  on the left hand side of the main Unit, and latches with an over-centre toggle clamp to ensure complete coupling security. In addition to the Embedded Audio, Test Chest simultaneously generates AES and balanced Analogue Stereo streams as well.   Either the internal Test generator, or an External signal can be selected for embedding on to the output video stream, and may be selectively enabled or muted on embedded Ch1-4, (on Groups 1-4). Parallel AES  and Analogue OP streams may be selectively enabled or muted as may be desired, to provide a highly versatile audio feature set.     There are two automatic repeating Test sequences:-     Sequence 1 unambiguously identifies Ch1, 2, 3 & 4 within the selected Group.     Sequence 2 sequentially identifies each of the 16 embedded Channels.   Naturally we have provided a 16 channel histogram mode for use with ‘Sequence 2’ above, or when is is required to monitor multi- group audio sources.   Catering too for your other operational requirements, Stereo audio level measurement is standard on the Test Chest in the Digital domain, where measurements may be made between 0 and down to  -80dBFS. Users will be aware that these lower AES levels are particularly handy when checking the functionality of Digital Microphones and their Mixer inputs    A numeric dB readout with heavily slugged response is also provided (shown in the picture on the left) particularly suitable for the measurement of steady state tone; whilst a simultaneous fast acting 4/16 Channel audio histogram, with a choice of Reference Levels, is provided for “real time” audio level measurements. PPM ballistics with selectable BBC, Din, Nordic or Digital scaling, and a VU scale with associated ballistics are menu selectable.   On most meter graticule scales there is menu selection offering a choice of ‘Reference Level’; these are referred to either -18dBFS, often used within the EU Area, or the SMPTE’s -20dBFS, but it is only the histogram that is affected. The numeric reading is a measurement in the declared Units; either dBFS for digital signals, or dBU for analogue measurements. This feature is particularly useful if one wishes to monitor a Programme recorded with -20dBFS SMPTE Reference level on a British style PPM (which is normally calibrated for -18dBFS operation), and then +2dB additional ‘monitoring gain’ may be switched in on the histogram to raise the apparent  SMPTE level to be compatible with the conventional PPM scaling....... at no time is the actual programme level affected, and the Numeric readout is unaffected.   Balanced Analogue audio measurements may be made over a dynamic range that nominally encompasses +/-10dBU. With analogue measurements, the numeric readout is calibrated in dBU, where 0dBU = 0.775VRMS.   Test Chest accepts  48/96/192KHz 75 ohm AES/SPDIF IPs directly on BNC2, and also generates a 110 ohm balanced 48KHz AES OP stream on the D-25. The Audio POD provides a highly intuitive and robust XLR interface suitable for every day requirements, and uniquely contains a very handy  110:75 ohm matching transformer with twin XLRs and BNC interface too, so that every AES matching requirement is covered!  Test Chest provides convenient monitoring of stereo sources on dual loudspeakers. Jacking into the side mounted 3.5mm socket with a pair of  30 ohm headphones  provides automatic LS muting and a quality of audio monitoring that is not possible using the modest front panel mounted loudspeakers. Unlike competitive Products, at no time is the 3.5mm 'headphone' output ever used for any other purpose; after all, just how do you compete with the Test Chest's stereo balanced analogue line I/O XLR ports, purpose-built specifically for that service? In fact, by taking only ‘one leg’ of the balanced OP, a really handy ‘single ended’  signal is available at -6dBU, for testing unbalanced loads.  Using Test Chest’s main video input on BNC1, it is practical to both display analogue audio envelopes on the WFM, and via the audio monitoring selection menu, simultaneously ‘listen in’ on that audio using the local loudspeaker/headphone monitoring too.   AUDIO  PHASE DETECTION   Test Chest includes Audio Polarity error detection for each of Ch1/Ch2 and Ch3/Ch4 pairs of the selected Group.  With embedded audio both channel pairs in the selected Group are presented; whilst with the balanced analogue input only the single Ch1 & Ch2 stereo pair is monitored.  Either detector will instantly "RED" flag a phase inversion of one channel, with respect to the other; and whilst the effect is instantly recognisable with steady state test tones, it could take a moment or two before an error is apparent on Programme Audio, due to the varied nature of the real-world signals encountered.          On normal Programme material, with correctly phased stereo, one would anticipate a substantially continuous "GREEN" flag; whilst in the presence of a stereo signal with phase inversion on one channel, a  "RED" flag would result.   In the presence of an error, with the RED FLAG continuously displayed one is left with NO doubt that a serious audio phasing problem exists, and that immediate remedial action is required. To prevent nuisance triggering of the alarm, amplitude sensitive detector gating is employed, and the Phase display is muted at low signal levels. TESTING AUDIO CABLES for  PHASE & CONTINUITY        The Test Chest + Audio-Pod together are able to test a single 'balanced' (Twin + Screen) cable for ‘Pin 2 & 3’ continuity and alsocorrect wiring phase.     Using a short XLR double ender, simply loop A2 OP to A2 IP on the Audio-Pod. Then plug your 'cable to be tested' into the A1, and link that between IP & OP. Confirm that ‘Analogue’ audio is selected on the the Test Chest’s audio monitoring input switch, and that the audio OP is set for ‘-18dBFS’ = 0dBU     Your 'unknown' cable will then be tested for both continuity AND 2/3 phase reversal. Good Cable:        XLR 1-1, 2-2 & 3-3 Histogram reads "4" (We like PPMs at Murraypro!) Phase = Green = Cable GOOD.     XLR 1-1, 2-3 & 3-2 Histogram reads "4", Phase = Red = Cable BAD (2 & 3 reversed!)     XLR 1-1, 2-o/c & 3-3 Histogram reads -6dB, Phase = Green = Cable BAD (1 leg open circuit).     XLR 1-1, 2-2 & 3-o/c Histogram reads -6dB, Phase = Green = Cable BAD (1 leg open circuit).     XLR 1-1, 2-3 & 3-o/c Histogram reads -6dB, Phase = Red = Cable BAD (1 leg open circuit).     XLR 1-1, 2-o/c & 3-3 Histogram reads -6dB, Phase = Green = Cable BAD (1 leg open circuit).     XLR 1-1, 2-1 & 3-3 Histogram reads -6dB, Phase = Green = Cable BAD (1 leg short circuit).     XLR 1-1, 2-2 & 3-1 Histogram reads -6dB, Phase = Green = Cable BAD (1 leg short circuit).      So, only PPM = "4" + 'Green phase' + GOOD CABLE.     ALL other conditions of Phase and/or -6dB reading = CABLE BAD.     Simple really, and amazingly powerful too!   AES/VIDEO: “Clicks on audio” ~ 48KHz LOCK CONFIRMATION?   Test Chest includes an "AES Locked?" Utility which confirms whether the Word Clock of the external AES signal presented to BNC 2, is synchronous with the Video Reference fed in on BNC 1. Should these signals be asynchronous, the "AES LOCK" flag on the audio monitor page will pulse RED/GREEN  at a 'beat' frequency. This frequency is dependent upon their difference at 48KHz; so that a 1Hz beat equates to a difference of approximately 20 parts per million.   Pleasingly this very useful ‘48KHz lock’ Utility works not only with precise 50 and 60 Hz References (where their numeric relationship is relatively straight forward), but also with 59.94Hz References, where they are not!   Visual Ident Generator   Test Chest includes an Identification banner to uniquely identify outgoing Test Signals. Users are encouraged to overwrite the default Ident with their own, which is stored in NV Memory for use in the future.    VITC   If present on an incoming SDI signal, VITC will be displayed on the local LCD. Video/Audio transit delay   Test Chest includes Clapper Board, Murraypro's unique  Video/Audio delay test tool. Clapper’s  ‘travelling puck, flash frame and audio pulse’ allows errors as low as one TV frame to be detected.   One of the banes of long distance digital signal transport is the distinct possibility of the audio stream suffering a lower transit delay than that of the video stream, due to reduced en-route processing. The inevitable result of this is the distinct possibility of "Lip sync" timing errors which, distressingly, are observable to the Viewer of the Programme. Clapper Board’s travelling puck test signal with audio pulse and screen bright-up at the centre reference point are originated at the source. This sequence is repeated continuously offering an immediate visual indication of the presence of A/V delay errors at the destination. No down-stream equipment requirement more demanding than the presence of a low latency picture Monitor and a Loudspeaker are required. At the destination, due to the repetitive nature of the sequence, an Observer is rapidly able to produce an empirical, but impressively accurate assessment of  delay errors, and whether corrective measures may be required.  Time/division is preset to 100mS, and is independent of the TV Frame Rate being used. Active Picture Area   Not all monitors display the whole of the picture area correctly, and some or even all of the picture ‘edges’ may be truncated. Test Chest can generate an ‘Active Picture’ test signal, and Picture Monitors should display all the horizontal pixels between the SDI ‘Start of Line’ ~ ‘End of Line’, and SDI ‘Start of Picture’ ~ ‘End of Picture’, as seen in the upper  Close-Up of the top-left of an image. The lower Close-Up of the same picture area, demonstrates the loss (in this case) of the extreme left pixels. Sometimes this clipping can be much more severe, with ALL edges lost; and the revised origin points of the corner diagonals can demonstrate how much has been lost.   Murraypro also manufacture “CAGE HD/SD” which is specifically designed to add precision cursors to a signal, so Picture Monitor Users can visually assess whether images conform with ‘Safe Action Area’, ‘Safe Graphics Area’, ‘Shoot-to-Protect 14x9’ and ‘Shoot-to- Protect 12x9’ Zone Requirements etc, as well as the ability to place (and store in NV Memory) movable cursors anywhere on the screen. 16:9/4:3 Aspect   The 800x480 high resolution LCD monitor has automatic processing which ensures that 1920, 1280 & 720 pixel 16:9 sources are displayed with scaling to fit the bright 5” screen. There's a Menu setting too, to correctly scale 4:3 images when required. This is Test Chest’s only non-automatic display mode! HDVI Computer and Graphics display interface.    Test Chest now provides twin HDVI* Graphics Ports which facilitate viewing, testing and monitoring remote Display sources.    Naturally, Test Chest’s "Which-Wire?" capability has been extended too, and additionally it now auto-detects these HDVI* Graphics sources too.     Use of industry-standard connectors enables PC Display, Graphic cabling, and associated interfaces to be swiftly checked out. This useful feature should be regarded as an additional integral facility, significantly expanding "Test Chest's" existing capability, rather than as a substitute for a dedicated Graphics Test Set.     A choice of locally generated HDVI* Test signals may be applied to a Display system under test, an arrangement that enables virtually any multi-sync PC or Graphics monitor to be used. If required, Test Chest can generate a separate SPDIF compatible audio output too from the AES OP stream, via the Audio-POD’s integral BAL/UN transformer.   External Graphics signals generated by remote equipment are fed, using commercially available HDMI# cable, to the Test Chest’s Graphics IP port for evaluation and monitoring. The signal may be presented either as a picture on the LCD panel, examined conventionally in ‘scope mode on the WFM, as a ‘Colour Parade’, or even in vector format. If required the Test Chest can accept SPDIF compatible audio output direct from external equipment via BNC 2.    *  Test Chest is primarily intended for use in Television based Engineering applications, rather than ‘Multi-Media’ entertainment environments. So although industry standard connectors are used for convenience, the generation and display capability is pitched towards confirmation of function with SD and HD  Professional TV related display standards, and a non-exhaustive list of the generally TV related Graphics standards that can be coherently displayed is tabulated in the Specification section. Hence we refer to this interface as our ‘High Definition Video Interface’ (HDVI).   Users should be aware that Test Chest does not embrace the High Definition Multimedia Interface# specification, and some features are not supported, although there is a degree of compatibility with elements of ‘681.   The already extensive HDMI# specification is continuously developing, and it’s scope is constantly being widened and so it can, we believe, only be investigated comprehensively with the use of the latest dedicated, and highly sophisticated Test equipment.   These dual HDVI interfaces are positioned in the panel space occupied by our earlier Test Chest 3G’s high impedance video BNC and DVI connector, which were little used; all other “original 3G” features have been retained.      We believe on balance that the Test Chest’s provision of this HDVI feature is a major bonus, and will prove particularly valuable in the field when checking compatible Multi-Sync display devices, or the output of TV related graphics sources. Cable Length   The Test Chest provides an automatic comparison of coaxial cable length, against a pre-stored internal Reference.   Users might wish to configure this so that for a chosen Clock-Rate and Cable-Type the threshold is, perhaps, 80% of the system's Digital Cliff. After choosing the TV Standard, Test Chest is calibrated using a ‘reference length’ of your selected cable.~ That's it!  When shipped, the Test Chest is preset for 100M of 'Belden 1694 with 1080i 50i. Input signals fed on longer cables than this ‘Reference length’ will flag as “Hi Loss”, whilst shorter cables will flag “Lo Loss”.   A word of caution, "Cable Clones" may not always accurately simulate a nominated cable type, especially at 3G frequencies, and differences could result when using real cable! TDR cable integrity check   Return Loss anomalies on coaxial cables between 5 ~ 180M will be speedily located using the Test Chest’s integral TDR Utility. Needle-like 16nS pulses are launched from Test Chest probing the network under investigation and, very similar to Radar, pulse energy that may be reflected back is detected and displayed on the screen. These reflections enable catastrophic open or short circuits and even minor impedance anomalies in the network to be instantly identified, AND their distance down the cable to be determined to within a couple of %, or so.  Higher local display gain may be selected when TDR Testing longer cables up to 180M, or when resolving more subtle mis-matches on shorter cables.   Distances are indicated in Metric and Imperial units for Belden’s 1694A, with most other HD cables exhibiting similar velocity ratios.   TDR testing has the absolutely fundamental advantage of using the Installation's own coax cable, and indeed the still-mated BNC connection to the downstream equipment, as the actual terminating load. This is generally a far better solution than the temporary imposition of the input of an alien measurement device at the cable’s far end, which would be quite different from the usual configuration of that circuit under test.     This photo taken during a demonstration set-up,  shows the effect of a 50 ohm elbow (erroneously) inserted immediately before a precision 75 ohm termination at the end of 100M of Belden 1694. It is worth appreciating that all the detected energy reflected from the annotated anomaly had in fact traverssed 200M of cable!   It is virtually impossible for "Eye" testing to have localised this problem, or indeed to be capable of showing it at all; let alone, as the Test Chest did, localise this “anomaly” precisely to within a couple of metres, and in a matter of seconds. So, now no more tedious re-terminating the wrong end of a cable, “just in case”! Error Logging       Test Chest incorporates an integral logging utility.   Digital format errors in the fields shown above are automatically detected and counted, then logged against Time of Day and stored in NV RAM. Thereafter events may be recovered  from the memory for later analysis   Li-Po Battery   Test Chest uses a high capacity Lithium Polymer battery, and around 4 hours service can be returned from a fully charged battery. The supplied universal voltage mains charger Unit is used to recharge the battery, and Test Chest’s intelligent on-board controller regulates charge and discharge parameters to maximise service life. The external charger may be left permanently connected, to effectively run Test Chest direct from mains power, with no risk of ‘overcharging’; however under these conditions, Li-Po operational protocol suggests that periodic discharging will extend service life.  External V-Lock Battery Accessory   For applications in the Field where the nominal 4 Hour duration of the Test Chest’s internal battery pack may not be sufficient, we can supply an external battery interface accessory. This is designed to use one of the ‘Industry Standard’ at 14V swappable battery packs that are available from a number of Vendors with capacities up to around 100WH using the “V-Lock” battery fixing. Power is supplied to the Test Chest using a flexible interface lead fitted with the highest quality Lemo Professional grade locking 2 pin connectors.   Integral Flashlight   The integral LED flashlight originally introduced in our now heritage Test Chest ‘SD only’ Unit has been retained. This latest Test Chest continues to support this popular feature, which has been much appreciated by all those Users who have experience of those mysterious dark voids that seem to be a feature of most Installations and ‘Locations’! Custom carrying case   Test Chest is supplied packed in a highly durable ABS carrying case which has been customised internally with precision cut ‘high density ‘foam to provide the maximum protection.  An additional  foam cutout is provided in the lid compartment to accommodate the Audio POD behind an internal hinged flap, which is secured with a quick release Velcro tab. There is room within the lid, adjacent to the POD, for the odd test cable or even  to keep your sandwiches safe and secure! NO “OPTIONS”   Quite unlike rival Products, where attractively priced ‘entry level’ Units often require a number of expensive ‘options’ before they are reasonably functional, Test Chest is supplied ‘fully loaded’ as shipped. NO ‘options’ are required for full Test Chest functionality. EYE~POD is offered as an accessory, and is compatible with both Test Chest, and the earlier ‘Test Chest 3G’ Units that are fitted with appropriate software. There is no charge for upgrading the software of ANY existing Test Chest 3G Unit to incorporate all the latest ”3G” features that are supported. However certain Surface Mount hardware revisions are implicit, and we reserve the right to levy a modest Workshop ‘Bench time’ charge for hardware upgrades, if required. We do urge existing “3G” Users to contact us so we can advise them of the benefits they will gain. EYE~POD accessory for SDI waveform analysis.   Our EYE~POD accessory module embraces 3G, HD and SD SDI, offering ‘false colour’ waveform analysis of both the Raw and Equalised envelopes, to facilitate evaluation and measurement of wave shape, envelope amplitude, rise and fall times with 3 and 10 eye display.   Separate modes are provided, for Timing and Alignment Jitter  with automatic measurement to SMPTE specification displayed on a histogram, with frame related timebase settings to optimise the jitter  display on the WFM. In SDI-SD/HD input modes, the status line displays protocol errors. a) TRS ERR mean either SAV or EAV errors have occurred. b) CRC ERR means Y or C checksum errors in SDI bitstream. c) ANC ERR means errors in ancillary data, eg embedded audio. d) EDH ERR means AP or FF CRC errors in SD video. e) STD ERR means unknown standard.                   Our cost effective Test Chest Unit provides the World’s FASTEST complete & practical one-stop, Test and Measurement solution for all Engineers & Technicians who require INSTANT and reliable results quickly, all day, every day. Specification Test Chest (HDVI) Current Firmware:- PC:1V0,  WPM:1V0,  TSG:1V0 ,  PM: 1V0. Test Chest 3G: Latest Firmware:- PC: 2V95,  WPM: 3V8,  TSG: 3V4,  PM: 3V4 VIDEO STANDARDS 625i 50Hz SD-SDI + CVBS   525i 59.94Hz SD-SDI + CVBS   720p 50Hz, 59.94Hz 60Hz   1080p 23.97Hz 24Hz 25Hz 30Hz 1080i 50Hz 59.94Hz 60Hz   1080ps 23.97Hz 24Hz 25Hz 30Hz 1080pA50/60  50Hz 59.94Hz 60Hz 1080pB50/60  50Hz 59.94Hz 60Hz Tri-Level: Auto-Detection, Display and Identification.     Tri-level sync OP replaces CVBS on all HD standards. ‘Colour Black’: SD only Generation, CVBS OP with ‘Y’ mute on. HDVI IPs: Non-exhaustive list of coherent images include~ 480i @60Hz H:720 420p @60Hz H:720 720p @60Hz H:1280 720p @50Hz H:1280 1080i @60Hz H:1920 1080p @60Hz H:1920 576i @50Hz H:720 576p @50Hz H:720 1080i @50Hz H:1920 1080p @50Hz H:1920 1080p @24Hz H:1920 720p @50Hz H:1280 3D TB 1080p @24Hz H:1920 3D SH 1080p @24Hz H:1920 3D TB 720p @60Hz H:1280 3D SH 720p @60Hz H:1280 3D FP 720p @50Hz H:1280 3D SH 720p @50Hz H:1280 3D TB     (SH = Side/Side Half TB = Top & Bottom FP = Frame Packing)   HDCP# EDID# or CEC# are not specifically supported.. AUDIO OP & Oscillator Oscillator 125Hz, 250Hz, 500Hz, 1KHz, 2KHz, 4KHz, 8KHz   Amplitude 0dBFS -79dBFS,   Analogue +/-10dBU nominal IDENT-a: Ch 1, 2, 3 & 4 sequentially identified. IDENT-b1: Each channel of 16 sequentially identified. IDENT-b2: Each Group sequentially identified:- Gp1@500Hz, Gp2@1KHz, Gp3@2KHz, Gp4 4KHz. Embed to: Group 1, 2, 3 or 4. Muting:      Ch1, 2, 3 & 4 individually selectable. Embed:      Enable or Mute to ‘Digital Silence’. AES:          Enable or Mute to ‘Digital Silence’. Analogue:  Enable or Mute. AES :            110R ac coupled, balanced line. 3Vpp nominal.  Analogue OP: Dual,  balanced low impedance drive  OP amplitude:  -18dBFS = 0dBU.  Bal Analog: OP amplitude limited to +10dBU nominal. Audio IP De-embed from Group 1, 2, 3, 4 AES: 48/96/192KHz, 1V pp nominal on 75ohm BNC 110 ohm balanced (via Audio-POD's AES transformer) Measurements referred to 0dBFS Analogue: Dual (stereo), Balanced Hi Z, lines. +10dBU ~ -12dBU nominal. Measurements referred to 0dBU   Audio-POD* (Interface) Audio IP XLR3-F, stereo pair. Audio OP XLR3-M, Stereo pair. AES OP XLR3-M. Transformer: AES frequencies only. 110R XLR3-M looped XLR3-F.   75R BNC. Test Chest Interfaces via D-25   OP Ports  BNC4:       3G/HD/SD SDI, 75 ohm. BNC3:       CVBS, 75 ohm. BNC2:       TDR Cable test (+75ohm AES IP). Serial          Video OP @ 10Bit precision CVBS        @ 8Bit precision, approx 0.5oDP & 0.5%DG. HDVI            World standard Display connector 19 pin. 800x640 Graphics standard supported with audio. Balanced     Stereo Analogue OP*  AES@ 110 ohm*  Headphone: Stereo 3.5mm Jack;  30 ohm IP Ports  BNC1: WW? @ 75ohm. BNC2: AES @ 75 ohm (& TDR Cable Test). External Video Reference. D-25: POD Interface* Stereo Analogue IP*. 12~24 Volt dc power to internal battery charger.   General Measurement tolerances are nominal, typical values.) Audio level measure with fast bar display, digital IP: + 0.1dB Audio level measure with fast bar display, analogue IP: + 0.25dB Video level measurement with SDI source + 0.1dB Video level measurement with CVBS source + 0.3dB De-embedded audio OP on Stereo LS, AES & Analogue ports. Analogue WFM + Scope: 25Hz-6MHz, +0.5dB, -3dB @ 10MHz 5-180M TDR Cable Fault indicator @ 75 ohm iterative impedance    16nS TX pulse, Distance resolution +2M nominal     Calibrated for Belden’s Brilliance 1694A# Clapper Bd signal generation: Video/Audio frame delay estimator. High resolution 800 x 480 (16:9) Touch screen LCD panel Stereo 80mW Loudspeakers & Stereo Headphone jack. Stereo Phase Error detection and flagging. “AES 48KHz Lock?” detection Utility. High capacity Lithium ion battery & integral power management. White LED flashlight Lower power, “unattended TSG” battery mode. Robust alloy case. Test Chest  Unit  1KG nom Test Chest + Audio-POD  1.5KG nom Test Chest Unit + POD in Carry case  2KG nom External 15W 3 pin IEC-320 mains PSU, permits simultaneous mains operation & battery charging. Harmonised Tariff: 90304000 # Ownership of all relevant Registered Trade Names, and Trade Marks, is acknowledged.
© Murraypro 2017 Click here to request a quote  Click here to request a quote Click here to request a quote  Click here to request a quote Click here to request a quote  Click here to request a quote Demonstration Video.fv4     Demonstration Video.fv4 Demonstration Video.fv4     Demonstration Video.fv4 Parade Vector SDI Exp Frequently Asked Questions  Frequently Asked Questions Frequently Asked Questions  Frequently Asked Questions (You-tube back-up) (You-tube back-up) (You-tube back-up) (You-tube back-up) 3G-HD, 1.5G-HD,    SD + CVBS and   HDVI  interfaces. Magic Which-Wire?   auto-identifies  mystery signals TDR Cable analysis ‘NO Boot’ fast start “EYE~POD”  Eye & Jitter accessory Emb’d, AES &  Balanced Analog Audio capability This is why!
Welcome to Murraypro electronics. With over 45 years experience developing broadcast television test, monitoring and generation equipment, our products are designed for you.
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Product Description
Customer’s Testamonials We put it (Test Chest) to use last week on the Coronation Street live episode and used it on the SIS Scanner, in our central areas to line up the outgoing circuits, in the individual studio areas, and outside in the rubble, checking video feeds. The only problem I had with it was keeping track of it, as each area tried to keep hold of it! It works perfectly for us. Needless to say we'd like to buy! So, I'll send you a PO”. ...........’S.C’, Manchester “I have used a large number of different test units but this one seems to do everything that I need for installation testing in one simple unit”.  ..........‘M.P.’ London All went well this morning, thanks for sorting it all out so quickly, and I was very pleased to have the Test Chest by my side for those final checks”. ............’P.N’ London “Would it be possible to have a quote for a Murraypro Test Chest generator/analyser? The Technical Support team here have been testing different units, and all agreed that the Murraypro unit is the preferred choice. I would like to get an order over to you as soon as possible’. ...........’P.R’ London “The Test Chest has been really useful this week. I now wish that we’d bought this very much sooner!” ...........’R.W.’ London “...and Ref Sync too, amazingly versatile. It’s so fast and easy to use, we just love it!” ...........’N.C.’ New Forest. “........here’s my PO for another Test Chest” ...........’S.M.’ Surrey
ONLY with the World’s FASTEST A+V Tester, will you able be to....... Generate, Analyse, View and Listen to 3G-HD, 1.5-HD, SD-SDI, CVBS & HDVI graphics, SDI Error Log, Tri-level generate and view as quickly as you use your Multimeter. With....... “Which-Wire?” automatic source identification  Analysis of Embedded, AES, SPDIF and Balanced Stereo Audio. TDR Return Loss analysis for Cables 5~180M. and be able to “See in the dark”! Battery Portable Unit 180x140x35mm 750Gm. Anticipate up to 4 HOUR untethered endurance. “EYE~POD” accessory for Jitter and ‘Eye’ analysis                Test Chest          For Folk who have          more sense, than money!                     
Test Chest uses only professional connectors ‘V-Lok’ Power-Plate accessory for  protracted usage TOP & LEFT are shown correctly Here, left edge of picture is lost Analogue measurement to dBU and of course, Digital formats to dBFS Frequently Asked Questions  Frequently Asked Questions Frequently Asked Questions  Frequently Asked Questions
Test Chest  IS the world’s fastest A+V Tester
Analyse & Generate  simultaneously on different standards Integral flashlight CVBS 2H Testing multi-standard equipment is a doddle when using Test Chest’s touch controlled logic CAUTION: Digital Cliff approaching!