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

— 03-04/2015



1. If you need to determine the

accuracy of a meter, it is best to

use it with a calibrated reference

signal. So we set out with crea-

ting a signal at 1000 MHz with a

signal strength of -40 dBm.

2. This signal was measured

with the Spaun Sparos 711 with

a minimal deviation of only 1.4

dBm. But that’s only half the

truth. In addition to its accuracy,

it also presents the 10 MHz

span with a tremendous level of


3. We measured the same signal

with one of our reference meters

for comparison. At the 1000 MHz

frequency the measurement

deviation was even below that

of the reference meter. And we

don’t want to even start with

the Spaun Sparos 711’s 10 MHz

spectrum resolution.

4. We then repeated the test with

a 1500 MHz signal.

5. Here, the measurement result

of the Spaun Sparos 711 was

almost identical to that of our

reference meter.

6. The result with our reference

meter and slightly adjusted filter


7. The last tested frequency was

2000 MHz.

8. With such a high frequency,

signal attenuation caused by

cable length becomes an issue.

The Spaun Sparos 711 perfectly

displayed the exact attenuation.

9. Depending on the used filter,

our reference meter arrived at

the same result.

10. We also wanted to find out

how the Spaun Sparos 711

behaves across the entire band

from 950 MHz to 2150 MHz and

to that end activated the sweep

function of our reference signal

generator in order to create a

signal strength of -35 dBM with

steps of 10 MHz.

11. On the other end of the line,

we turned on spectrum mode

with active Max Hold function

in the Spaun Sparus 711. After

a few minutes the meter had

created the spectrum shown in

the image. The result is nothing

short of impressive, since the

Spaun meter was able to detect

a constant signal with a signal

level of -35 dBM and with only

the slightest of deviation. To be

honest, this result can be expec-

ted from a lab testing instrument

rather than a conventional TV

signal meter!

the Spaun Sparos 711 fully

supports unicable networks,

the specifics of which can

easily be taken care of in the

LNB/DiSEqC menu.

We instantly fell in love with

the main screen in measure-

ment mode, which can be

called up using the TV but-

ton. What’s so special about

it? The Spaun Sparos 711 is

capable of displaying all rel-

evant measurement results,

a section of the spectrum,

live video of the transponder

(unless it is encrypted) and

transponder information si-

multaneously and in real-

time. Actually, this is a great

example of the Spaun Sparos

711 putting its huge screen