Procom NTA 3E-SHT User Manual
Nta 3e-sht

NTA 3E-SHT
Short Active three-frequency NAVTEX Receiving Antenna
DESCRIPTION
Specially designed for the three NAVTEX frequencies 490 kHz,
518 kHz and 4209.5 kHz.
Built-in low-noise amplifier providing excellent impedance matching to
the 50 ohm downlead cable.
Special band-pass filter based tuning circuitry to optimize the antenna
for the NAVTEX frequencies and protect from possible interference from
e.g. medium wave broadcast radio signals.
RF ground internally AC-coupled to mounting bracket preventing
electrolytic corrosion.
Sturdy design to withstand the roughest weather and climate conditions.
Simple mounting using the 1” revolving nut system.
Wide varity of accessory mounting brackets available.
Junction kit for easy connection to receiver and DC power supply
available (to be ordered separately).
ORDERING DESIGNATIONS
TYPE
PRODUCT NO.
NTA 3E-SHT
110000235
BCL 1-KA Junction kit
110000003
SPECIFICATIONS
ELETRICAL
MODEL
NTA 3E-SHT
ANTENNA TYPE
Active E-field narrow-band three-frequency NAVTEX
antenna
FREQUENCY
490 kHz, 518 kHz and 4209.5 kHz
IMPEDANCE
Nom. 50 Ω
SWR
≤ 1.5
SUPPLY VOLTAGE /
CURRENT
9 to 15 VDC / 20 mA
MECHANICAL
TEMP. RANGE
-30°C → +60°C
CONNECTOR
N-female
WIND SURFACE
Approx. 0.013 m²
WIND LOAD
Approx. 17 N @ 160 km/h
COLOUR
Marine white
MATERIALS
Shroud: Polyurethane-coated glass fibre
Mounting bracket: Chromed brass
TOTAL HEIGHT
Approx. 530 mm
DIA. IN TOP END
21 mm
DIA. IN BOTTOM END
23 mm
WEIGHT
Approx. 350 g
MOUNTING
On 1” RG (G1”-11) threaded water pipe or on optional
mounting brackets (see below)
ACCESSORIES (to be ordered separately)
PROCOM A/S reserve the right to amend specifications
without prior notice.
12/11/13