IsoPole Vhf & Uhf omni-directional antennas has been considered
as a Masterpiece of Design, obtaining a strong reputation through
the years and offering exceptional characteristics compared with
any other type of antennas as:
O degree radiation angle, so the major lobe is oriented on the
horizon giving the maximum gain on the length. Decoupling sleeves
offer greater efficiency than the common radials, producing a
uniform pattern and a great mechanical strength. JI
coverage than other collinear antenna .They can be tuned for commercial,
military or amateur frequencies without re tuning across the entire
band with less than 2:1 of SWR with no compromise for the transceiver.
with the best quality materials available of high resistance corrosion
aluminium alloys, stainless steel mounting hardware, and insulation
resistant to UV mainly manufactured for satellite applications;
the connector is inside the mast fully weather protected, offering
a linear and constant performance.
It is an ideal
choice for repeaters and trunking systems, and can replace arrays
of 4 dipoles in omni directional configuration with similar performance
and saving costs of installation, less wind load area and high
power handling if required.
It has a high
noise threshold, capable of discriminating weak signals of spurious
or static noises, and it is also DC grounded.
of the Spectral is very simple, it requires only a metallic tube
(not supplied with the antenna for a reason of length) of 32mm
(1-1/4in) and 2,5 meter (3 feet) for VHF (137-160) models, model
of higher frequencies accept shorter masts, and the UHF models
are supplied with their own masts and it is only necessary to
spend a few minutes assembling and tuning by a simple length adjusting
according to the chart.