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2MCPl4
Circular Polarized Antenna
SPECIFICATIONS
MODEL NUMBER 2M-CP14
FREQUENCY
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GAIN 10.3 dBd
FRONT TO BACK 20 dB
VSWR 1.3: 1 TYPICAL
BEAMWIDTH
POLARITY
FEED IMPEDANCE
CONNECTOR..
POWER HANDLING 1.5 KW
BOOM LENGTH
NUMBER OF ELEMENTS 14
MAST SIZE
WIND AREA
WEIGHT
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SHIPPING WEIGHT
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DIAMETER
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143-148 MHz
52' CIRCULAR
CIRCULAR
50 OHMS UNBALANCED
'N' FEMALE
10' 6
" I 1 .On
1-112" I 2
1
.I
6
LBS I 8 LBS UPS
"
SQ. FT.
FEATURES
The 2MCP14 is a light, medium performance circularly polarized antenna designed to work across
&
the two meter amateur band. Optimum match and gain are between 144
satellite band. Computer design techniques help keep spurious side lobes low down for optimum
signal to noise ratios. This antenna features the same CNC machined, O
sealed, driven element assemblies common to all
free performance regardless of weather.
A
136R-14C and a 149T-14C model are also available for the ATS satellite users.
7560
N.
Del
Mar
Ave,
Fresno,
CA
~~Yagi antennas. This insures years of trouble
93711 (209) 432-8873
FAX:
147 MHz for the
-
ring and silicone-gel
432-3059
-
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2MCPl4
TOOL REQUIRED FOR ASSEMBLY: screwdriver, 11/32 nut driver or wrench, 7/16" and 112" end
wrenches and sockets, measuring tape.
1. Start by laying out the boom sections using the DIMENSION SHEET as a guide. Use 8
screws and locknuts to join sections. Sections may may be swaged to each other or use 718"
internal splice sections.
ASSEMBLING THE HORIZONTAL ELEMENTS
2. Separate elements by length into two identical sets, "H" and
I
length and position as shown the DIMENSION sheet. Start with the reflector (longest) element.
Balance it on your finger to find rough center and push on a black button insulator to about
center. Push the element through the holes
button, snugging it up into boom. DO NOT BOTHER
this time and DO NOT INSTALL the stainless steel shaft retainers yet. It is easier to do it after all
the horizontal elements are installed in the boom.
3. Install the 3/16" rod DRIVEN ELEMENT as you did the reflector. Then continue with the installation
of the DIRECTORS.
from rear to front, so pay close attention to length and position.
Note that the Director Elements do not consistently diminish in length
Assembly Manual
"V".
Lay out the "H" elements by
112" from the rear of the boom and install the second
ACCURATELYCENTERING the element at
6-2-94
-
32 X 1-114
112" off
4.
Now begin centering the elements. Use a tape measure to EQUALIZE the amount the element
sticking out on each side of the boom. Once you have all the elements centered, sight down the
element tips from the rear comparing each side. Look for any obvious discrepancies and correct if
found.
5.
NOTE: The SHAFT RETAINERS, for securing the elements, should always be used for permanent
and long term antenna installations. For portable or temporary use the retainers may be left off.
The button insulators, normally a tight fit, hold the elements quite securely.
To install the stainless steel SHAFT RETAINERS, use thumb and forefinger to hold the retainer