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COMPACtenna
20m/2m/440

Antenna

Order #6078
Your Price: $99.95
                 

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COMPACtenna 20m/2m/440

A 20 inch antenna for 20 meters? Impossible! Until now . . .
The revolutionary COMPACtenna 20m/2m/440 uses a patented design which includes magnetic-field-enhancement. This allows the extremely short antenna to perform amazingly well for its height. Coverage includes 20 meters, 2 meters and 440 MHz! Power capacity is 100 Watts HF, 85 Watts 2m and 50 Watts 440. This break-through antenna was designed by Dr. Jack Nilsson N8NDL and offers superior performance on three popular amateur bands.

This antenna employs a unique magnetic field resonator (for less receiver noise), and features Electric/Magnetic Field Diversity Science & Technology design. This provides superior performance in non-line-of-sight obstructed environments, such as buildings, hills, in valley location, and indoor installations. This technology provides for a unique low-cost easy installation base station antenna in an attic as well as a variety of limited-space locations.

The 20m/2m/440 antenna require a 3/8"-24 mount not included (see below). This antenna may be used successfully with a very small ground plane. A simple 3/8x24 magnetic mount can be set on a 36 by 48 inch galvanized metal plate (available from Home Depot) or even a metal table! The result is a compact, yet effective antenna for a variety of applications.

Mounting the antenna to a small flat metal sheet or mesh that is only 3 feet by 3 feet provides good (V)SWR’s and performance.
[Note: For standard type technology antennas, a ground plane this small would be inadequate for the 20 Meter band, potentially resulting not only in poor (V)SWR’s but also RF on the outside of the coaxial shield coming back down toward the radio. This is undesirable for a number of reasons including unpredictable signal patterns with the outside of the shield of the coax acting as a poor counterpoise radiator, as well as noise, and transceiver/amplifier possible concerns.]

(V)SWR: Nominal:  < 2:1 14.15 - 14.35 MHz (20 Meter Band); 144-148 MHz (2 Meter Band); 420-450 MHz (440 Band)

One year limited mfg. warranty. Each antenna is quality tested. Made in the U.S.A.         _

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MFJ-335BT
MFJ-335BT
Magnet Mount
for indoor use only!
Base: 3/8-24
Coax: 17 ft. RG58
Connector: PL259
Order: #2073
Price: $16.95  $15.95 
VIEW LARGER & INFOSSM-2 Hustler SSM-2
Ball Mount only
Stainless Steel
Base: 3/8x24
Coax: None
Connector: None
Order: #2004
Price: $38.00  $30.95 
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Opek HDM1B
HDM1B
Hole Mount

Base: 3/8-24
Coax: None
Connector: SO239
Order: #4283
Price: $13.88  $10.95 

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 SS750DH
SS750DH
Hole Mount
Heavy Duty
Base: 3/8x24
Coax: None
Connector: SO239
Order: #3617
Price: $16.00  $14.95 
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Opek SM1
SM1
Hole Mount

Base: 3/8x24
Coax: None
Connector: SO239
Order: #5349
Price: $5.10  $3.95 

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Opek SM2
SM1L
Hole Mount
Right Angle
Base: 3/8x24
Coax: None
Connector: SO239
Order: #4584
Price: $12.00  $9.95 


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