Built by popular demand, the DX Engineering Ladder Line Surge Protector is ready to be placed in line with your balanced feedline antenna system!
For many years, hams have asked us for a surge protector for use with their 300 ohm and 450 ohm ladder line fed antennas. Decades ago automotive spark plugs or arc gaps were used for shunting lightning pulses from balanced feeders to ground. But, you never really knew if they were going to work, were continuing to work or if they were affecting the tuning.
Here is the modern approach to providing surge protection for ladder line fed antennas. Made with components similar to those used in coaxial protectors, the DXE-LLSP uses much larger capacitors, resistors and gas discharge tubes on each leg of the ladder line to offer excellent surge protection capabilities at high SWR. These components are rated to handle 5 kW, so this protector will easily handle well over legal limit RF power at the high standing wave ratios expected on balanced line. Plus, the Ladder Line Surge Protector bleeds off the static charge that is collected on your antenna from wind driven sand, rain and snow!
The DXE-LLSP Ladder Line Surge Protector is built to sustain multiple minor surges. As with any surge protector, there is no guarantee that a direct hit from lightning will be stopped. A replacement parts kit is also available to refurbish your pulse damaged protector: DXE-LLSP-RP
Features of the DX Engineering Ladder Line Surge Protector:
• Standard size NEMA enclosure; 4 x 4 x 2 in. nominal box dimensions; mounting tab holes on centers: 4.625 x 2.125 in.
• Works with 450 ohm or 300 ohm Ladder Line and 600 ohm open-wire feeder
• Internal Gas Discharge Tubes, Capacitors and Resistors
• Can withstand multiple minor surges and shunts them to ground
• Bleeds off static charge collected from wind driven snow, rain and sand
• Weep holes allow any buildup of internal moisture to drain out
• Handles well over legal limit at high SWR as expected on balanced line
Built by popular demand, the DX Engineering Ladder Line Surge Protector is ready to be placed in line with your balanced feedline antenna system! For… Read more
Official QO-100 International Emergency Frequency! In order to coordinate potential emergency communications during the actual or any other crisis, th… Read more
Chameleon MPAS 2.0 1.8-54 MHz Modular Portable Antenna System IT’S IMPORTANT TO WATERPROOF THE CHA MIL EXT 2.0 BEFORE PERMANENT INSTALLATION Us… Read more
Greyline 16-foot DX Flagpole Antenna, a real Flagpole approved for ham radio in HOA, smart design for Stealth, No Radials, OCF vertical antenna, a ver… Read more
The Army Research Laboratory Atoms in a glass vapor cell are excited with laser beams to Rydberg states. They detect the electric fields (coming from… Read more
On Wednesday, Spaceweather.com reported a new emerging Cycle 25 sunspot in the sun’s Northern Hemisphere, but it was not yet numbered. By the next day… Read more
Just going to run a little power to my shack – should I ground? from r/amateurradio Read more
WEST HOLLYWOOD, California – The number of Americans obtaining their ham radio licenses is soaring as the country comes to grips with the corona… Read more
“The MFJ-2010 off-center-fed dipole (OCFD) looks like a much better candidate for the reference station antenna. This video looks at is features… Read more
In an enforcement case prompted by complaints filed in 2017, the FCC has imposed an $18,000 forfeiture on Jerry W. Materne, KC5CSG, of Lake Charles, L… Read more
Power Genius XL Searching for the highest performing solid state linear amplifier on the market today? If so, then the Power Genius XL (PGXL) amplifie… Read more
Deluxe heavy duty trunk lid/hatchback mount. Strongest, most universal mobile mount available. 2-axis adjustment gives flexibility in mounting locatio… Read more
The post DX Engineering Ladder Line Surge Protector DXE-LLSP appeared first on QRZ NOW – Ham Radio News.