Diamond Antenna A144S10 Manuel utilisateur

A144S5 & A144S10

2 Meter Yagi Antenna

Specications

Frequency:

:niaG

Power Rating:

Impedance:

VSWR:

Front To Back Ratio:

Boom Length:

Longest Element:

Driven Element diameter:

Parasitic Elements diameter:

Max. Mount diameter:

Weight:

Connector:

Antenna Assembly

(1) Remove antenna from package and adjust elements to proper position.You will nd a small mark on the center of each

element to aid in its positioning. Tighten each wingnut after verifying proper positioning.

(2) Weatherproong connections. As coaxial cables tend to absorb moisture through their connectors, it is recommended

that the connector be sealed. There are several products available for this purpose, including a good grade of electrical type

or a rubber compound tape.

Figure 2

DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY

435 S. Pacic S treet San Marcos, CA 920 78 (770) 614-7443

www.diamondantenna.net

←6” →

Fabricated

extension

↑

Figure 1

A144S5 (5 Element) A144S10 (10 Element)

144-148 MHz

9.1dBi

100W PEP, 50W FM

50 Ohms (Nominal)

1.4:1 (Nominal)

More than 14 dB

37.4” 950mm

42.9” 1090mm

0.50” 12.7mm

0.37” 9.4mm

1.5”

1.8 lbs. 0.81 kg

SO-239 UHF Female

144-148 MHz

11.6 dBi

100W PEP, 50W FM

50 Ohms (Nominal)

1.4:1 (Nominal)

More than 15 dB

83.8” 2130mm

42.9” 1090mm

0.50” 12.7mm

0.37” 9.4mm

1.5”

2.4 lbs. 0.81 kg

SO-239 UHF Female

The Diamond 2 Meter Beam Antennas are easy to assemble and install. Only a few cautions are necessary in their installation.

TheA144S5 may be installed for either vertical or horizontal polarization.

(a) Vertical polarization (preferred for FM operation): If mounting to a vertical support or pole at the boom center, be

sure this support is non-metallic.Aberglass or waterproofed hardwood extension should work satisfactorily. End mounting is a

good option, as the coax cable may be run along the boom and down the vertical support. The idea is to minimize the eects of

metal in the vertical plain. It will be necessary to fabricate an extension capable of sliding inside the boom, being secured by the

screw passing through the boom (at the reector element). Another way of mounting vertical beams is on a bracket to position

beam away from the vertical support in order to reduce its eects. Coax should be run away from the beam at right angles (or o

the reector end). See Figure 2.

(b) Horizontal mounting to the vertical support is easily accomplished with center boom mounting.

connector. Length approximately 2140 mm / 84 inches. Beam separation of approximately 40”-48” is recommended.

Note that the two antennas are mounted to the stacking boom in the same position. The cable connection must enter

each from the same side as shown in Figure 4.

Figure 3

Tighten Wingnuts

Position element for

center marker

Figure 4

Ce manuel convient aux modèles suivants

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