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TELE-audiovision International — The World‘s Leading Digital TV Industry Publication

— 03-04/2015

kilometres), the Spaun Spa-

ros 711 offers the follow-

ing innovative measurement

method: The main signal is

shown in the centre of the

diagram and all echoes are

given at the corresponding

distances from that central

signal. A marker identifies the

guard interval. This gives you

a streamlined overview of the

real-world signal environment

and Spaun has done an excel-

lent job integrating this fea-

ture, even adding additional

tools such as automatically

numbering all echoes and list-

ing them in a summary table.

If an echo is detected that

is outside the guard interval

limits, experienced techni-

cians should be able to com-

pensate such an echo by using

this meter and two antennas

and by cutting the cable lead-

ing to the second antenna at

a length that precisely offsets

the runtime delay of the in-

terfering transmitter. Doing

those tricks without a top-

notch meter borders on the

impossible, while the Spaun

Sparos 711 is an excellent aid

thanks to its fast and highly

accurate measurement re-


We were in for another sur-

prise when we discovered the

MER vs. carrier measurement

option of the Spaun Sparos

711. This is a measurement

type that has surfaced re-

cently and is currently only

offered by a small number of

professional meters. Basical-

ly, this measurement looks at

the modulation error rate of

To put the Spaun Sparos 711 to

the test, we used it to perfectly

align a prime focus antenna with

a diameter of 1.8 meters. The

meter’s tuner has a very low

threshold and the meter generally

reacts very swiftly to all signal

changes, turning an alignment job

like this into real joy.