These devices are used for protection of Radio Equipment
attached to antennas. They will protect from sand, rain, snow static
buildup on antennas and feed lines which can damage sensitive radio
equipment. They also will protect against damage from nearby and overhead
lightning strikes. And can mitigate damage to radios or large damage
to other equipment from occurring inside buildings, enclosures, and homes.
Based on the design by Industrial Communications Engineers (ICE) 300
Series coaxial arrestors, these arrestors have been improved in performance,
packaging, and mounting hardware. These arrestors are DC blocked and include
static and DC discharge capability just like the famous ICE arrestors. They
also include rated Gas Discharge Tubes (GDT) which can be replaced with
simple tools. Due to the static bleed inductor inside the arrestors
not only does it help to keep the tube from firing extending the life of the
GDT, but by virtue of bleeding off static that is charging the coaxial cable
it eliminates cable discharge noise from the sensitive receiver which can
lower the noise level heard.
The enclosures are machined aluminum small blocks which have convenient
removable bracket to screw the device to a plate. We have also
developed a mounting bracket system which can be purchased as an accessory
to mount directly to ground rods, or plates inside enclosures, or a wall
plate located at a coaxial cable entrance.
They Feature:
1.
Easy Installation, due to the flange
with holes to allow screwing it to a plate, the #8x32 stainless screw mount
included, and the optional AS-300-SB Stacking bracket system
2. 3kW,
5kW, and other values available depending on GDT used
3. Weather
and water tight heavy duty enclosures using Stainless steel hardware
4. Safety
rated and tested GDT
8. Components
are easily replaced
Specifications:
Specifications:
Dimensions 2"x2"x1.5"inches (50.8mm X 50.8mm X38.1mm),
connector to connector 3.25" (8.2cm)
Weight .4 lb (.2kg)
1 to 70 MHz
VSWR under 1.05:1
Return Loss typically 40dB
50 ohms (can be used in 75 ohm systems)
Insertion loss 0.02 dB or less
Power Ratings 3kW Continuous, 2:1 VSWR 5 kW 1.2:1 VSWR
GDT Devices certified to UL497B and UL1449
Halogen free
Devices tested per ITU K.12 recommendations
Non radioactive materials
DC spark-over voltage
Capacitance at 50 MHz < 1 pF
Operation and storage temperature -40 ... +90 °C
Climatic category (IEC 60068-1) 40/ 90/ 21
Performance Plots
SWR RED,
Return Loss Blue, R Orange,
X Green In the above Plot
Insertion Loss Green,
Phase Purple in the above plot
AS-302U/N Arrestor Plot to 500MHz
