Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018
33
Specifications:
Antenna type:
Four right angle triangular loops sharing a common vertical
side that doubles as part of the mast.
UNI-directional Pattern:
Slightly sharper than a cardioid pattern for horizontally
polarized signals and much sharper than a cardioid pattern
for vertically polarized signals. Electronically steerable on
eight directions.
Peak front-to-back:
Greater than 30 dB (35-40 dB for SAL-30 Mark II
RX antenna impedance:
50 ohms nominal (At the controller’s RCA output to the
radio)
Delay Line impedance:
75 ohms
Frequency range:
AS-SAL-12: 500 kHz to 28 MHz
AS-SAL-20: 300 kHz to 14 MHz
AS-SAL-30: 100 kHz to 7 MHz
Note that the antennas do work below and above these
frequency ranges to some extent with less gain or a
different pattern.
Number of Directions:
Eight directions
Direction control:
Through feed line coax, no control lines
RF connection (antenna):
Type-F (RG-6) connectors at control box and outdoor relay
box.
RF connection (radio):
RCA connector output to receiver external antenna input
Power requirements:
+12 - 15 V DC, 1000 mA linear regulated RF-quiet power
supply provided, 2.10 mm coaxial jack
Switching Unit Preamp:
Socketed
Dual Stage Preamplifier
Size:
AS-SAL-30: 33 ft (10.06 m) tall, 33 ft (10.06 m) radius
AS-SAL-20: 22 ft (6.71 m) tall, 25.5 ft (7.77 m) radius
AS-SAL-12: 14 ft (4.27 m) tall, 20 ft (6.10 m) radius
NOTE: If the outer stakes are not used and non-conductive posts are used to anchor
the loops’ outer corners, the footprint of the antenna can be reduced as follows:
AS-SAL-30: A square of 35.4 feet (10.79 m) on a side
AS-SAL-20: A square of 24.75 feet (7.54 m) on a side
AS-SAL-12: A square of 14.85 feet (4.53 m) on a side
