Return to Home Page

COMPACtenna
28-450

10/6/2m 220/440 Antenna

Discontinued


COMPACtenna
27-450

11/10/6/2m 220/440 Antenna

Discontinued!

Return to Base Antennas

Base/Mobile Antennas 

COMPACtenna logo

 

COMPACtenna 28-450

The COMPACtenna 28-450 uses a patented design which includes magnetic-field-enhancement. This allows the extremely short antenna to perform surprisingly well for its height. This revolutionary antenna was designed by Dr. Jack Nilsson N8NDL and offers superior performance on five popular amateur bands. Coverage includes CB, 10 Meters, 6 Meters, 2 Meters, 220 and 440 operation! Power capacity is 150 watts on 10, 6 and 2 meters and 100 watts on 220 and 440 MHz. The antenna is only 2 feet tall (with 4 inch diameter coil and resonator). Gain is +3 dBi nominal.
The 28-450 has been replaced by the 27-450 (see below).
(V)SWR: Nominal
< ~2:1 50-54 MHz, 144-148 MHz, 219-225 MHz 420-450 MHz < ~2:1 28.3-29.4 MHz
< ~3:1 28.0-28.3/29.4-29.7 MHz
(V)SWR’s can vary with shape and size of vehicle and vehicle panels.
Best (V)SWR’s are generally seen when mounting at corners of the vehicle roof/trunk lid/quarter panel; on a bracket mount; or on a (light) bar.
Signal pattern is substantially omni-directional with these mounting options.

The new COMPACtenna 27-450 is essentially the same design, but additionally covers 11 meters CB.
(V)SWR: Nominal
<2:1 50-54 MHz, 144-148 MHz, 219-225 MHz, 420-450 MHz  <2.5:1 27-27.4 MHz, 28.3-28.5 MHz.

The 28-450 and 27-450 antennas require a sturdy 3/8"-24 mount not included. This antenna may be used in as a mobile or base antenna with an appropriate mount and ground plane. In a mobile scenario, the vehicle provides the ground pane. In a base scenario, a ground plane must be supplied. In the example shown above, a simple 3/8x24 magnetic mount has been set on a 36 by 48 inch galvanized metal plate (available from Home Depot). The result is a compact, yet effective antenna for CB, VHF amateur, scanner monitoring and preparedness applications.

One year limited mfg. warranty. Made in the U.S.A.

Click here for video demonstration

VIEW LARGER & INFO
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 
VIEW LARGER & INFO
Opek HDM1B
HDM1B
Hole Mount

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

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

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

INFO
Opek SM1l
SM1L
Hole Mount
Right Angle
Base: 3/8x24
Coax: None
Connector: SO239
Order: #4584
Price: $12.00  $9.95 


Copyright 2017-2018, Universal Radio, Inc.