Antenna Battery

[Trd123]

Recently, I had difficulty having to hear any radio station. Only be able to hear when I fully extend my radio antenna..Heard from one of the mechanic is due to the fact the antenna battery has die off..Is it true?? How much to change one?

[Freakman]

huh?? antena got batter meh??

[Genie47]

Entennas have no batteries. However, do note that a fully extended entenna can increase your FC!

[Elfenstar]

Have you thought of putting a reception booster in???

[Virusted]

Increase FC?? care to explain more??

[Virusted]

how much will that cost?

[Genie47]

Aerodynamic drag. That is why Americans are told to be patriotic by not putting flags on their entennas. It will increase the draw even more. Dunno what the Malaysians were thinking.

 

Anything that sticks out like a sore thumb from your car's outline will increase FC. Roof cross bars (that is why cars only come with roof rails), big side mirrors and super long vertical entennas. Most cars entennas are angled to reduce their profile. Those with fixed entennas usually change to short ones. In Singapore, those with fixed entennas usually get the same reception with a short entenna.

[Elfenstar]

Sorry I dunno the price. I'm guessing around $20 to $30.

[Muddy]

"Zhoon boh"???

 

A little rod like the antenna, how much drag does it has? The angled antenna is to match the shape of the car and probably has no consideration of drag at all. Those that comes long antennas were changed to shorter ones are probably for vanity.

[Potheader]

There is still drag. The antenna disrupts laminar flow.

[Muddy]

Maybe you want to go to another mechanic to ask for second opinion.

 

The reception depends on a number of parts, right from the antenna to your head unit. Under normal situation, it is probably at those points with joints that may be faulty. A simple dry-solder may start to fail after some time. The wire itself is seldom at fault.

 

Another thing is the head unit(HU) that may be faulty. What car are you driving? Car's age? Agent? Warranty for car and HU?

[Muddy]

Errmm... I mean there is. But negligible right? Compare to other drags the car has?

[Potheader]

Ya.. the drag is rather small, BUT it still contributes to at least an increase of 2-3% of FC. Similar to opening windows and travelling above 80kmh.

 

Main drag is your windscreen.