ACOM L-PROT 2000 | Lightning Protector
ACOM L-PROT 2000 | Lightning Protector
Application area
ACOM L-PROT 2000 is a lightning protection device of TX/RX equipment in the range of 1.8‑54 MHz / 2 kW with coaxial cable not used for (DC) power supply.
Protective action
L-PROT 2000 provides excellent protection against static electricity accumulation in the antenna and eliminates white noise in the receiver during wind, rain, or snow. It also prevents any DC current flow between the input and output. Besides, the two chokes DC short-circuit the ports and prevent charges from accumulating. The air spark gaps limit the back EMF.
Easy use
The device is bi-directional and works equally in both directions. The coaxial connectors of both ports are marked the same: "IN/OUT" since they are mirror-identical and interchangeable by design. The device is equipped with a grounding stud and wing nut which must be grounded.
How it works
The main energy amount of electromagnetic pulses induced by a lightning strike is spread in the frequency spectrum below 100 kHz (LW/VLF band), approaching DC. Suppression of LW/VLF components effectively
attenuates the strike energy and completely blocks the pulse DC component. In the rare event of a very close strike, the pulse voltage is limited by the two massive hemispherical air spark gaps. These voltage limiters withstand greater surge current and multiple strikes, and last much longer, than commonly used GDT arresters.
Installation
L-PROT 2000 is designed primarily for installation in an electrical cabinet or on the wall, outside the radio shack. It should be installed low at the building foundation, close to the building's lightning protection grounding system.
Warranty terms
The ACOM Terms of Business (General Conditions of Sale and General Service Conditions) are available as PDF files under the Support -> Terms of Business menu.
By purchasing ACOM products, the Customer (Dealer or End User) declares acceptance of the above-mentioned ACOM Terms of Business.
Operating Frequency Range
- From 1.8 MHz to 54 MHz;
IN/OUT Ports
- Two 50 Ω nominal-impedance coaxial RF ports of mirror-identical and interchangeable design, with UHF PTFE connectors (SO-239A), either used for input or output;
Power Handling
- Maximum input RF power, PEP or continuous carrier, at antenna SWR up to 3: 2000 W;
Attenuation and Mismatch of the Useful RF Signal in the Operating Frequency Range
- RF useful-signal attenuation: 0.03 dB maximum;
- Standing Wave Ratio (SWR) - 1.1 maximum;
- Return Loss: -26,5 dB RL maximum;
DC Resistance from Each Port to the Grounding Stud
- 12 mΩ maximum;
Rated Discharge Pulse
- 20 kA, 8/20 µs, 100 shots on each port;
Maximum Discharge Pulse
- 500 A, 10 μs / 1 ms, 1000 shots on each port;
Maximum DC or AC current, 0 to 60 Hz, each port to ground
- 25 Arms continuous, 100 Arms for 1 s;
Frequency Response Slope in the LW/VLF Range
- 60 dB/dec typ.;
LW/VLF Range Attenuation
- @ 100 kHz: 50 dB min;
- @ 30 kHz: 80 dB min;
- @ 10 kHz: 100 dB min;
- below 3 kHz: 120 dB min;
- DC: negligible leakage current;
Frequency Response Slope in the VHF/UHF Range
- -40 dB/dec typ.;
VHF/UHF Range Attenuation
- @ 100 MHz: 30 dB min;
- above 300 MHz: 50 dB min;
Size & Weight (operating, excluding connected cables)
- WxDxH: 175x66x193 mm, Approx. 0.8 kg (6.9x2.6x7.6 inches, Approx. 1.8 lbs.);
Shipping Size & Weight
- Please, contact us for shipment details;
Operating environments
- Temperature range: -40 to +60 degrees Celsius (-40 degrees F to 140 degrees F);
- Relative air humidity: up to 98% @ +35 degrees Celsius (95 degrees F);
- Height above sea level: up to 3050 m (10000 ft).
Coffee/tea mug :-)
This is the only guarantee for successful DXing and a happy life :-)
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Brochures & Manuals
ACOM L-PROT 2000 Brochure | December 2024 | PDF file
ACOM Product Catalog | October 2023 | PDF file
NEW for ACOM Enthusiasts and Admirers:
ACOM L-PROT 2000 Wallpaper image 1920x1080 dpi | JPG file
