Why doesn't the antenna go all the way up?
09-25-09, 07:46 AM
#2
I have noticed that one "level" of the antenna is never all the way up.
You can move it up and down if you want while the mast is up. I do so when I'm cleaning it from dirt and grime.
I've always thought the reason for it is to stabilize the antenna from wind resistance. I think its the best reason why it would be like that...
You can move it up and down if you want while the mast is up. I do so when I'm cleaning it from dirt and grime.
I've always thought the reason for it is to stabilize the antenna from wind resistance. I think its the best reason why it would be like that...
09-25-09, 07:51 AM
#3
The antenna length varies with the frequency (it tunes).
Tune your radio to the lowest station (87.5 I think), then go DOWN...which should roll you around to 107.9ish...and it should change in length (if the car isn't running and you're in a quiet place, like parking garage, you can actually hear the antenna motor run for a second or two while it changes the length of the antenna).
Tune your radio to the lowest station (87.5 I think), then go DOWN...which should roll you around to 107.9ish...and it should change in length (if the car isn't running and you're in a quiet place, like parking garage, you can actually hear the antenna motor run for a second or two while it changes the length of the antenna).
09-25-09, 07:53 AM
#4
Pole Position
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The antennae goes higher or lower depending upon what frequency you are listening to. When you switch to AM it raises because AM frequencies are a lot weaker than FM frequencies, also PhilipMSPT I would be careful when your cleaning it because some of the dirt and grime is actually lubrication that helps the antennae move up and down.
09-25-09, 09:00 AM
#5
Lexus Test Driver
The antenna only goes as high as it has to to get a sufficient reception signal. It is designed this way so the antenna doesn't go so high that there is a heightened risk of it hitting something (e.g. a tree branch) while driving. Therefore it only goes as high as necessary
09-25-09, 10:10 AM
#7
Lexus Test Driver
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05-03-13, 01:17 PM
#11
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On the LX470 there is an antenna raising and lowere switch on the dash which operates in addtion to, and can overide, the automatic tuning height adjustment of the antenna mast.
05-03-13, 02:40 PM
#12
Is there a way to make the antenna just go all the way up every time? Several of the FM stations in Atlanta do not come in as clear in my SC as they do in the crappy cars I've owned in the past. I'm not sure how they determine a 'good signal' but it doesn't seem to be intelligently done.
BTW, I have checked the antenna connection at both ends (mast and head unit) and have verified this with another SC430 in the area.
Any ideas?
ds
BTW, I have checked the antenna connection at both ends (mast and head unit) and have verified this with another SC430 in the area.
Any ideas?
ds
05-03-13, 03:41 PM
#13
Is there a way to make the antenna just go all the way up every time? Several of the FM stations in Atlanta do not come in as clear in my SC as they do in the crappy cars I've owned in the past. I'm not sure how they determine a 'good signal' but it doesn't seem to be intelligently done.
BTW, I have checked the antenna connection at both ends (mast and head unit) and have verified this with another SC430 in the area.
Any ideas?
ds
BTW, I have checked the antenna connection at both ends (mast and head unit) and have verified this with another SC430 in the area.
Any ideas?
ds
The antenna length varies so its tunes to optimum length for frequency selected in your radio.
Higher frequency has shorter wave lengths, therfore shorter antenna . Lower frequencies have longer wave lengths.
JR
02-01-24, 07:01 AM
#14
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The antennae goes higher or lower depending upon what frequency you are listening to. When you switch to AM it raises because AM frequencies are a lot weaker than FM frequencies, also PhilipMSPT I would be careful when your cleaning it because some of the dirt and grime is actually lubrication that helps the antennae move up and down.
LOL WHO TOLD YOU THAT, THAT IS ONE OF THE WELL NOT SO NOT-SO-TRUE THINGS I HAVE EVER HEARD. AM FREQUENCIES ARE STRONGER THAN FM. The wavelength is taller, shorter and a less dense than FM, and this is the reason AM can broadcast so far away. all of the receiving in the antenna is at the tip. You need to not comment on things you know nothing about. There is NOTHING ON THE LEXUX PEA-BRAINED ECM that tells the antenna to go to a certain height.
02-01-24, 09:39 AM
#15
LOL WHO TOLD YOU THAT, THAT IS ONE OF THE WELL NOT SO NOT-SO-TRUE THINGS I HAVE EVER HEARD. AM FREQUENCIES ARE STRONGER THAN FM. The wavelength is taller, shorter and a less dense than FM, and this is the reason AM can broadcast so far away. all of the receiving in the antenna is at the tip. You need to not comment on things you know nothing about. There is NOTHING ON THE LEXUX PEA-BRAINED ECM that tells the antenna to go to a certain height.