Procom HF 7500-3 - Manual

HF 7500-3
7.5 m Self-Supporting HF Transmitting Antenna for Mast
Mounting
DESCRIPTION
This antenna is intended for transmitting and receiving in the
MF-HF range. It is designed for mast mounting with an open
feeder installation.
The antenna has very low base capacitance for best efficiency. The
power rating of the antenna depends on frequency, but it can very
safely be used with 500 W transmitters over the whole MF-HF band.
Installation is easily carried out by means of the two hot galvanized
mast clamps. The antenna has very small weight and minimum wind
surface, thereby requiring only a minimum of mast strength.
The glass fibre construction gives a stiff and self-supporting structure
with extremely good resistance against the corrosive marine
environment with UV-radiation, salt, exhaust gases and ice formation as
the primary factors.
HF 7500-3 is a maintenance-free and very reliable construction.
ORDERING DESIGNATIONS
TYPE NO. PRODUCT NO.
HF 7500-3 110000179
SPECIFICATIONS
ELECTRICAL
MODEL HF 7500-3
ANTENNA TYPE Self-supporting antenna element
FREQUENCY 1.4 – 30 MHz
STATIC CAPACITY Approx. 90 pF
INSULAT. RESISTANCE Approx. 10 8 Ω
MECHANICAL LENGTH 7.5 m
EFF. ELECTR. LENGTH 7.2 m
MECHANICAL
TEMP. RANGE -30° C → +70° C
CONNECTOR Open feeder. See drawing
WIND SURFACE Approx. 0.128 m²
WIND LOAD Approx. 205 N @ 150 km/h
MAX. WIND SPEED 200 km/h
COLOUR Marine white
MATERIALS Shroud : Glass fibre
Metal parts: Chromed brass
TOTAL HEIGHT Approx. 7.5 m
DIA. IN TOP END 5 mm
DIA. IN BOTTOM END 30 mm
WEIGHT Approx. 4.7 kg, clamps inclusive
MOUNTING On 35 – 65 mm dia. mast tube
CLAMP DETAILS
PROCOM A/S reserve the right to amend specifications
without prior notice.
12/12/12