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BoatingLAB Tests: VHF Antennas

Everything you need to know about your boat's antennas.
By Randy Vance
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Longer broadcast and reception range is definitely better than shorter range, and longer antennas definitely give better reach.

That was BoatingLAB’s conclusion after lining up five popular antennas and calling to a mobile station at one- and five-mile ranges. Eight-footers, installed seven feet above sea level, all reached our mobile station five miles away, but shorter units lost their reach quickly after one mile. That’s only logical since a VHF signal travels via line of sight and antennas are made to polarize their signals on a horizontal plane.

But we wanted to know if you could  hear a distinction between the signal and sound quality of a higher-priced antenna  and that of a lower-priced antenna. The answer was an inconclusive “not really.”

Aside from signal reach, we found important differences in components that justify  the added expense.

We tested two high-end VHF antennas ideally suited to a ­powerboat from 20 to 40 feet long. We also took a look at one value antenna and two short antennas suited to small boats or sailing vessels.

Pricing for our test antennas came from online retailers whose price points often reflected ­bargain prices on premium products. The ­slider bars on price/value are not influenced by those prices but by our assess­ment of quality components and manufacturers’ product positioning.

Here’s our test.

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Clothing shoes market have special wash suede shoes shoe powder to sell.
Fashion magazines introduced can put eggs green paint on the shoe, wait to dry off, dirt will touch down
After dirty suede leather shoes, if dry clean is indelible. After scrubbing can scrub with wet cloth, first dry in ventilation, shady and cool place. Leather surface seems dry dry, reoccupy bristle brush dips in some suede powder, shoes on the shoe brush, shoe suede will be puffed up. After a blow dry, suede can recover.
Winter is coming, it is estimated that each mm has more than a pair of suede leather shoes. How to maintain is a headache thing. This is I see in a place on this one of the most radical version, hope can help to everybody.
To introduce the specific maintenance methods below, you can give it a try:
Material: brush, shoe stretcher, detergents, renovation, sponge, mothballs.
Steps: 1. Ash. (or vacuum) (mm) is recommended with old rub zao towel, I didn't dare to try.)
2. Use shoes ChengCheng up first. (wooden shoe stretcher can be change with shoe)
3. Use special brush to brush. Pay attention to the main processing copper wire surface besmirch the heavier parts and polished by parts. Brush with rubber face first in one direction, use side seam. Besmirch place emphasis on looped knead, knead it with copper wire.
4. Use wet sponge to clean again, wet shoes. Purpose is mainly dealing with water soluble substances.
5. Shake well cleaner spray on the surface. With rubber brush brush back and forth again and again to make both sides fiber stains are removed, dirty bubble with a wet sponge blot.
6. Air is ten minutes, etc. Hair is a bit dry, and some wet brush with rubber surface in one direction, make hair scattered, finishing.
7. Air is half an hour, after upper dry shoes in newspaper to protect, 15 cm away from the shoes uniform spray update agent. Update agent containing light agent, colloid (enhanced adhesion of other material), pigment, solvent, can dissolve the mixture), etc. Main aim of the spray update agent is complementary. Black shoes to wear for a long time is easy to reverse, it is best to ecru update agent.
After 8. Dry it with a rubber brush again, make the same color.
9. Finally put desiccant collection.

Another great review. Very detailed and clear. Will refer to this when I need to make a purchase.

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