Antennas Direct C2 - Manual (Page 2)

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6.
Helpful Tips:
• If your cable run is greater than 75’, A pre-amplifier may be required.
• UHF signals are line of sight. Get as much elevation as practical.
• Attic Installations will cut 40% -50% of your signal strength.
• KEEP ANTENNA AWAY FROM POWER LINES
5. ClearStream 2
Gain and VSWR vs Frequency
Gain is a measure of an antenna’s ability
to concentrate radiated power from a
particular direction. Unlike other anten-
nas that claim high peak values, The gain
of the C2 is not only extremely high but
nearly uniform across the DTV spectrum
VSWR ( Voltage Standing Wave Ratio).
The method used to compute losses from
impedance mismatches. The lower the
number the better. If the VSWR = 1 then
there is no loss.
The efficiency of an antenna is how much
signal received by the antenna actually
makes it to the cable.
The C2 is an extremely efficient antenna.
At its optimum frequency, the mismatch
loss for the C2 is very low - less than .1 dB.
6. ClearStream 2
Horizontal Plane Reception
Patterns
The ClearStream 2 has very forgiving
aiming characteristics with more than 70
degrees of beamwidth across the main
lobe as well as a powerful secondary
rear lobe. This allows the C2 to receive
signals from multiple directions with a
single fixed installation.
Performance
5.
7
8
9
11
10
6
1
2
3
4
5
VSWR
Gain
Ch 27 Ch 14 Ch 52 Ch 43 Ch 35 Ch 19
dB
400 MHz 750 MHz
Core DTV spectrum 470 MHZ - 698 MHz