AS-302U

3 kW CW / 5 kW PEP Coaxial Lightning Arrestor

AS-302 sweep up to almost 900 MHz. This unit was specially hand tuned. We support specifications up to 500 MHz.

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 1200V 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.

Key Features

General

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
Ratings	3 kW, 5 kW, and other values available depending on GDT used
Weather & Water Tight	Heavy duty enclosures using Stainless steel hardware
Safety	Rated and tested GDT
Components	Easily replaced

Specifications

General

Dimensions	2" x 2"x 1.5"inches (50.8 mm x 50.8 mm x 38.1 mm) Connector to connector 3.25" (82 mm)
Weight	0.4 lb (0.2 kg)
Frequency Range	1 to 500 MHz
VSWR	Under 1.2:1
Unique Static Bleed Protection System	Yes
Return Loss	Typically 40 dB
Cable	50 ohms (can be used in 75 ohm systems)
Insertion Loss	(S21) 0.02 dB or less
Power Ratings	3 kW continuous @ 2:1 VSWR 5 kW @ 1.2:1 VSWR
GDT Devices	Certified to UL497B and UL1449
Halogen Free	Yes
Devices Tested	Per ITU K.12 recommendations
Non-Radioactive Materials	Yes
DC Spark-Over Voltage	600 V, 800 V, or 1200 V Depending on GDT installed
10 Operations	8/20 µs 5 kA minimum
1 Operation	8/20 µs 10 kA minimum
Max. Follow Current	During one voltage half cycle at 50 Hz 200 A
Insulation Resistance	At 100 V DC > 10 GO
Capacitance	At 50 MHz < 1 pF
Operation & Storage Temperature	-40°C to +90°C (-40°F to 194°F )
Climatic Category	(IEC 60068-1) 40/ 90/ 21

Lightning Protection

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