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Nowadays, there are so many products of ll-1 4:1 ladder line balun in the market and you are wondering to choose a best one. You have searched for ll-1 4:1 ladder line balun in many merchants, compared about products prices & reviews before deciding to buy them.
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Here are some of best sellings ll-1 4:1 ladder line balun which we would like to recommend with high customer review ratings to guide you on quality & popularity of each items.
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MFJ-18H100 100ft 450 Ohm Ladder line, 2-18
100′ MFJ 450OHM Ladder Line, 18GA, Solid (non-stranded) copper-clad steel
Unadilla W2AU 4:1 Ladder-Line Transition Balun HF 160-6 Meters
W2AU 4:1 Ladder-Line Transition Balun Long the standard of the industry the W2AU baluns are built to last! 2 KW PEP (at SWRs of less than 3:1). W2AU Baluns are transformer designs with ferrite cores to provide 95% minimum coupling efficiency. Each has a built-in lightning arrestor, and 600 lbs of pull-apart strength in a weatherized, rugged package using only stainless steel hardware and quality materials. USAGE NOTE: Since many Hams are the inventive types, it should noted that they also tend to not read the instructions and succeed in achieving their goals. In any event, the matchbox is a tuner and all it does is make the transmitter believe it has an antenna with a lower SWR than it really has. This way it will introduce more power to the antenna than it can typically radiate. A random length antenna, one not tuned to any one frequency is a compromise antenna. Anywhere it is not resonant it will produce significant SWR above 3:1. With 200 watts of continuous key down CW it would heat up the core of the W2AU balun, at the feed point,and damage it, but that is the extreme example. Many Hams understand this and do it anyway with care. Also, note that new solid state equipment further limits your operating options never contemplated over 50 years ago when these instructions were made. The equipment manufacturer dictates the parameters of your operating ability. It is suggested that if using ladderline, no balun, because a balun at the feedpoint, would interfere with the radiation that the offset antenna needs from the ladderline. Instead use a W2AU 4:1 Ladder Line Balun at the end of the ladder line transitioning the ladder line to a coax entry into your shack. A 4:1 extends resonances available. Some hams use a 1:1. These are some ideas in using an offset antenna.
Ohuhu 12.5 FT Aluminum Telescopic Extension Ladder, ONE-BUTTON RETRACTION New Design Telescoping Ladder, ANSI Certified Extendable Ladder with Spring Loaded Locking Mechanism, 330 Pound Capacity
- ✅ One Button Retraction: Convenience is key! That’s why we’ve designed this ladder with easy one button retraction. Simply press down on the thumb buttons and the ladder will slide down effortlessly.
- ✅ Premium Aluminum Alloy: The Ohuhu Telescopic Extension Ladder is crafted from high-quality aluminum alloy. It’s lightweight and easy to carry without sacrificing strength.
- ✅ Rock-Solid Stability: This ladder is as sturdy as they come, with a weight capacity of up to 330lbs! Non-slip end caps hold the base firmly in place, while extra-wide steps ensure safe climbing. We’ve also made sure that this ladder is compliant with EN131 and SGS European safety standards to give you some peace of mind.
- ✅ Safe to Use: No more pinched fingers! The telescoping ladder’s high quality construction ensures that each section expands and retracts safely. Intelligent locking pins hold the sections in place and prevent sliding, and the ladder will retract smoothly and slowly.
- ✅ Extreme Versatility: This telescopic ladder is the homeowner’s best friend. Thanks to its maximum height of 12.5 ft (3.8m) , the Ohuhu Telescope Extension Ladder is perfect for all of your specific needs. Use it to help paint the walls, change the light bulbs, clean the windows, and everything in between.
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Luisladders Aluminum Telescoping Telescopic Extension Ladder 330 Pound Capacity (12.5 Feet)
- MADE TO LAST: Made from corrosion-resistant quality aluminum alloy, it has the sturdy frame and slip-resistant rungs for 330 lbs weight capacity and is resistant to corrosion and rust. It’s qualified with the EN131 certificate for safe materials, environmentally-friendly and high performance.
- SAFE AND RELIABLE: double couplings on every rung guarantee your hands in right position to avoid pinching
- bottom caps on the feet can avoid tipping over. The height can be adjusted to your needs.
- PORTABLE AND CONVENIENT: lightweight and compact size, easy to transport and store
- a heavy duty securing strap secures the ladder firmly and with the grip handle, you can easy to carry the ladder with one hand. Great for Home/Building maintenance, Washing window, Exterior/Interior Decorating, Painting etc.
- EXTENSION AND RETRACTION DESIGN: with inward slide latches, you can adjusts rung by rung in one-foot increments to reach and retract any desired height without effort
- protection spacers avoid bumping and friction during retraction
- Durable, and rustproof it’s well worth the money. Scientific design on extension and lock mechanism with thumb buttons to click smoothly and effortlessly. 4-way combination ladder system. Heavy duty strap to fasten up for better storage.
Description:
3.8m (12.5 ft) foldable telescopic style climb ladder
Foldable design, convenient to use and easy to carry around
Great helper for both indoor household use and outdoor activities
Safe and compact—-black anti-slip rubber sleeve on the bottom of ladder step
and stable locking key between two neighboring steps to avoid bumping and friction
Number of Ladder Step: 12
Step Interval: 30cm/11.8"
Net Weight: about 11.3kg / 25lbs.
Max. Load: 150kg / 330lbs.
Mainly made of premium aluminum alloy
Color: just as the pictures show
Approx. Size: 87cm x 48cm / 34.3" x 18.9" (Folded–L&W);3.8m/12.5′ (Unfolded Height)
Slight deviation may occur during measurement, please take care and thanks for your understanding
Package included:
1 x Folding Telescopic Ladder & User Manual
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