Antennas Direct C1 - ClearStream 1 Assembly Manual

Antennas Direct
Brand
Antennas Direct
Model
C1 - ClearStream 1
Type
Assembly Manual

This manual is also suitable for

Antennas Direct C1 - ClearStream 1 is an antenna designed to receive UHF signals. It has a high gain and a low VSWR, which means that it can receive signals from multiple directions with a single fixed installation. The C1 is also very efficient, with a mismatch loss of less than .1 dB at its optimum frequency.

The C1 comes with a 75 ohm transformer, a threaded bolt, and an adjustable mast clamp. It can be attached to any kind of mast or mount up to 2” in diameter. The 75 ohm coax connector is in the center rear.

Here are some tips for using the C1:

  • If your cable run is greater than 75’, a pre-amplifier may be required.

Antennas Direct C1 - ClearStream 1 is an antenna designed to receive UHF signals. It has a high gain and a low VSWR, which means that it can receive signals from multiple directions with a single fixed installation. The C1 is also very efficient, with a mismatch loss of less than .1 dB at its optimum frequency.

The C1 comes with a 75 ohm transformer, a threaded bolt, and an adjustable mast clamp. It can be attached to any kind of mast or mount up to 2” in diameter. The 75 ohm coax connector is in the center rear.

Here are some tips for using the C1:

  • If your cable run is greater than 75’, a pre-amplifier may be required.
C1 - ClearStream 1
Antenna Assembly
1. The ClearStream 1 antenna comes with:
• 1reector
• 1taperedloopelement
• 75ohmtransformer(internal)
• 1threadedbolt
• 1adjustablemastclamp
2. FeedthesuppliedboltthroughholeinU
clampassembly.
2.
4. Assembly complete.AttachtheC1
antennatoanykindofmastormount
(upto2”indiameter)withtheadjustableU
boltclamp.The75ohmcoaxconnectoris
inthecenterrear.
3.
3. Alignthetwohalvesoftheseparatingcolumnandattach
thereector(grid)totheantennaelement(Taperedloop)by
threadingtheboltthroughthecenterofthecolumn.Tighten.
1.
4.
dB
877-825-5572
1699WestFifthStreet
Eureka,MO63025
www.antennasdirect.com
6.
Helpful Tips:
• Ifyourcablerunisgreaterthan75’,Apre-amplier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 1
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 C1 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 C1 is an extremely efficient antenna.
At its optimum frequency, the mismatch
loss for the C1 is very low - less than .1 dB.
6. ClearStream 1
Horizontal Plane Reception
Patterns
The ClearStream 1 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 C1 to receive
signals from multiple directions with a
single fixed installation.
Performance
VSWR
Gain
Ch27
Ch14
Ch52
Ch43
Ch35
Ch19
400MHz
750MHz
CoreDTVspectrum470MHZ-698MHz
5.
11
5
10
9
8
7
4
3
6
2
1
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Antennas Direct C1 - ClearStream 1 Assembly Manual

Antennas Direct
Brand
Antennas Direct
Model
C1 - ClearStream 1
Type
Assembly Manual
This manual is also suitable for

Antennas Direct C1 - ClearStream 1 is an antenna designed to receive UHF signals. It has a high gain and a low VSWR, which means that it can receive signals from multiple directions with a single fixed installation. The C1 is also very efficient, with a mismatch loss of less than .1 dB at its optimum frequency.

The C1 comes with a 75 ohm transformer, a threaded bolt, and an adjustable mast clamp. It can be attached to any kind of mast or mount up to 2” in diameter. The 75 ohm coax connector is in the center rear.

Here are some tips for using the C1:

  • If your cable run is greater than 75’, a pre-amplifier may be required.
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