M2 Antenna Systems DCN100-500 Manuale utente

M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722

Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com

Rev.00

Model .........................................DCN100-500

Frequency Range.......................100 To 500 mHz

*Gain ..........................................2 dBi Nominal

Beamwidth ...............................360 Omnidirectional

Polarity .......................................Vertical

Feed type ...................................Direct feed

Maximum VSWR........................2.2:1 Max

Input Connector ..........................“N” Female

Power Handling ..........................1 kW

Height / Dia.................................51” / 45”

Mast Size....................................1.5” to 2”

Wind area / Survival ...................0.5 Sq. Ft. / 120 MPH

Weight / Ship Wt.........................13 Lbs. / 20 Lbs.

M2 Antenna Systems, Inc.

Model No: DCN100-500

FEATURES:

The M2 100-500 MHz Discone antenna is no toy and is ideal for use where broadband omnidirectivity is required. This

is a heavy commercial grade antenna designed for many years of trouble free operation. Machined components, 6061-

T6 aluminum materials and an “O” ringed connector means this unit is as weather proof as we can make it. All hardware

is stainless steel.

SPECIFICATIONS:

*Subtract 2.14 from dBi for dBd

DNC100-500 ASSEMBLY MANUAL

It is easiest to install the coax feedline to be used first. Therefore route coax feed cable

through the 1-1/2” x 48” mast extension and mast flange. Tighten the cable connector

securely and then install the mast flange to the hub assembly with cap screws. Next slide

the mast extension tube fully into the mast flange and secure with set screws.

Tools required for installation: 7/16” wrench, 1/2”

socket and socket wrench.

NOTE: It is recommended that each screw, rod

and tube connection be assembled using

Penetrox (zinc oxide paste) or equivalent. The

paste or grease lubricates the screw threads and

helps seal the aluminum to aluminum joint from

moisture. This will insure long lasting joints even

in harsh environments as well as aiding in

disassembly should it be required.

DNC100-500 ASSEMBLY MANUAL

Insert the 10-1/2” top hat rods one at a time into the top hub and and tighten the set screw

DNC100-500 ASSEMBLY MANUAL

NOTE: THERE ARE TWO DIFFERENT LENGTH “REFLECTOR RODS”, (4) 40” AND (4)

42” RODS. Insert a longer, 42” element into any hole and tighten the set screw. Next to

that reflector rod, insert a shorter 40” reflector rod and tighten the set screw. Continue

alternating length until all 8 reflector rods are installed and tightened. If the mast has not

been installed at this point, the antenna can “sit” on its “cone” legs.

At this point everything is assembled but it is a good idea to go back over every set screw

and re-tighten to be sure everything is secure.

DNC100-500 MOUNT TO YOUR MAST

M2 ANTENNA SYSTEMS, INC.

4402 N. SELLAND AVE.

FRESNO, CA 93722

(559) 432-8873 FAX: 432-3059

www.m2inc.com Email: [email protected]

Install the 2” and 1-1/2” U-bolts to

the Boom to Mast Plate using the

supplied 5/16” nuts and

lockwashers.

Slide on the Boom to Mast Plate

onto the 1-1/2” X 48” Mast

Extension Tube. Tighten the u-

bolts securely.

Now install the entire assembly

onto your main mast (1-1/2” , 2”

O.D.).

The feedline may be attached to

the mast with tape or simply

wrapped around the mast.

DCN100-500 VSWR PLOT

ANTENNA MAINTENANCE:

1. Check the tube connections at the spokes for any loose connections. If the connection

appears clean or otherwise free of corrosion or oxidation, re-tighten. If dirt, grit or corrosion is

found, dis-assemble the affected parts and clean, removing any corrosion or oxidation with a

file or wire brush.

2. Re-assemble, using Penetrox or equivalent at each screw, rod and tube joint.

TYPICAL VSWR CURVE

1.5:1

150 100200250

2.0:1

300350400450500

DCN100-500 PARTS & HARDWARE

DESCRIPTION ................................................................... Qty

DCN100-500 Hub Assembly .......................................................... 1

Mast Flange....................................................................................1

Top Hat Rod, 1/4” x 10.5” aluminum,............................................. 8

Reflector Rod, 3/8” x 40”, aluminum ..............................................4

Reflector Rod, 3/8” x 42”, aluminum ..............................................4

Mast Extension Tube, 1-1/2” x .058 x 48”, aluminum ....................1

Boom to Mast Plate, 4” x 6” x .250” (M2ADC0100) .......................1

U-bolt and cradle, 2”.......................................................................2

U-bolt and cradle, 1-1/2”................................................................2

Penetrox cup, 1 oz. ........................................................................1

Assembly Manual........................................................................... 1

IN HARDWARE BAG ......................................................... Qty

Lockwasher, 5/16, SS ...................................................................8

Nut, 5/16-18, SS ............................................................................8

Socket Head Cap Screw, 1/4-20 x 3/4" SS.................................... 4

Set Screw, 1/4-20 x 1/4” SS..........................................................12

Set screw, 8-32 x 1/4”, SS .............................................................8

Allen Wrench, 5/64”........................................................................ 1

Allen Wrench, 1/8”..........................................................................1

M2 ANTENNA SYSTEMS, INC.

4402 N. SELLAND AVE.

FRESNO, CA 93722

(559) 432-8873 FAX: 432-3059

www.m2inc.com Email: [email protected]

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