DSNG Selection Method

This is a description of the author's experience in understanding

The purpose.

Requirement.

Design constrains.

Design.

Manufacturing.

And effective use of

DSNG-VANS.

DSNG selection process

Satellite news gathering .

Dsng system architecture.

'quality ' & 'efficiency' of digital satellite news gathering.

the time to location (ttl).

accessibility of the vehicle.

Vehicle type-Compact vehicles.

Vehicle type-Light Compact vehicles .

Vehicle type-Lcv / Large LCV.

Vehicle Dimension selection-L/W/H.

Chassis selection.

DSNG selection process-Questioner

Satellite news gathering . What type of SNG should I use?

Dsng system architecture. What is the level of instrumentation required?

'Quality ' & 'efficiency' . What are the operating QE industry parameters?

The time to location (ttl). What & how do I attain TTL?

Accessibility. What is the terrain & access in my operations?

Vehicle type. What vehicle to use to attain Ttl ,it's cost & advantage Vehicle Dimension . What is my optimum dimension?

Chassis selection.

Dsng-Van

Digital Satellite News Gathering-Van :

They are specially modified trucks or vans used to back-haul the remote signal to the studio. They are characterized by there dish that points skywards towards one of the geostationary communications satellites.

The process of digital news gathering is in a evolutionary as well as a self-obsoleting cycle from ENG to 3G/4G

ENG Electronic news gathering.

SNG Satellite news gathering.

DSNG Digital satellite news gathering.

3G/4G Mobile technology.

Dsng system architecture:

'Quality ' & 'Efficency'of

Digital Satellite News Gathering

The quality & efficiency of any digital satellite news gathering(DSNG)system depends on

The time to location (TTL)The level of instrumentation.The up linking frequency.The satellite used.The down linkThe base antenna at ground station.

The time to location (TTL)

The time to location (TTL) permissibly varies from as soon as possible ( ASAP ) for news channels ,to reach when you can(RYC) for program channels.

The variables that affect the TTL on ASAP are

Availability of manpower and machinery.

Knowledge of location & route map

Accessibility of the vehicle.

Accessibility of the vehicle.

The access of the vehicle is mainly depended on the

- the engine power.(wt/power - ratio) .(62 kg/bhp-72 kg/bhp-82 kg/bhp)

- dimension of the vehicle (length x breadth x height)

based on dimension ,vehicles are classified into

Compact - Tata 207,Mahindra cabking,tempo trax,..............

Lcv - Mahindra load king,Tempo excel,.............

Large LCV - Eicher 10.90,Tata 709,...........

Bus chassis- leyland lynx,stag............

Chassis Built - Tata 207, Mahindra Cabking, Tempo trax.Company Built - Toyota Innova, Tevera, Ford endevour.

(+) Are good for city traffic & congested by lanes.(+) Less on cost of ownership & operation.

(+) Less complicated.

But are

(-) Cramped for space.(-) Limit to antenna & other equipment size.(-) Limit to long distance travel & larger crew size.

Compact vehicles (length<=4M x Width<= 2M x Height<=2.5M)

Chassis Built - Mahindra load king,Tempo excelCompany Built -

(+) are good for city traffic.(+) Rough use.(+) Tight parking.(+) Long travel.

(+) Heavy duty use.(+) And more space.

But are

(-) poor vibrational characterestics.(-) poor asthetics.(-) poor safety on high ways.

Light Compact vehicles LCV(length<=5M x Width<= 2M x Height<=3.1M)

Chassis Built - Mahindra load king,Tempo excelCompany Built -

(+) are good for city traffic.(+) Rough use.(+) No Tight parking.(+) Long travel.

(+) Heavy duty use.(+) And more space.

But are

(+) better vibrational characterestics – with air suspension.(-) poor asthetics.(+) better safety on high ways – as larger vehicle.

Large Light Compact vehicles-LLCV (length<=6M x Width<= 2M x Height<=3.5M)

lcv / large lcv platform selection.

The main construction method used in LLCV/LCV construction are

Modular Construction Method - ( box type) - MCM.

They are easy and fast to fabricate. Less expensive to construct & maintain Re-moved and chassis used easily.

Integral construction Method - (Bus type) - ICM.

They have better safety ,aesthetics,space utilization. Vibrational characteristics are good. Long distance travel good for larger crew.

Dimension selection-L

After the platform is selected MCM/ICM the vehicle dimensions are

arrived at

Length(L) of vehicle depends on the following parameters.

@ roof height

Ac,Antenna,Radiator dimension & layout.

@ Floor height

Ups,Rack,Generator,Ac

outdoor,equipment,

seating dimension & layout.

@ below floor height

Hydraulic jack & fitment ,dickey,plugging

panel dimension & layout.

Dimension selection-W

After the platform is selected MCM/ICM the vehicle dimensions are

arrived at

Width(W) of vehicle depends on the following parameters.

@ roof height


@ Floor height


outdoor,equipment,


@ below floor height



Dimension selection-HAfter the platform is selected MCM/ICM the vehicle dimensions are

arrived at

Height(H) of vehicle depends on the following parameters.

@ roof height & above (Fixed)


@ Floor to roof height (floating)


outdoor,equipment,


@ below floor height (Fixed) on Tyre size.



Chassis selection

Thus after the following process of

Selecting the best method used for satellite news gathering.

Studying the DSNG architecture & selecting the best applicable.

Understanding the quality & efficiency in using DSNG.

Fixing a permissible/practical ( TTL)-time to location.

Studying the terrain of probable use & it's accessibility.

Studying the factors affecting accessibility.

Understanding vehicle types,dis/advantage,building & selecting.

Studying the parameters affecting vehicle dimensions.

A suitable chassis ,construction method,dimension,

level of instrumentation is arrived at.

Documents

DSNG Selection Method