Re: Cell phone reception dead after using amplifier
I had this same problem with a motorola razr some time back. Some cell phones have a built in switch (such as the Razr) inside the external antenna connection. In the case with my razr, I
evidently pushed the adapter into the phone too far. I later had to jump out the switch inside the
phone to make it work with it's internal antenna again. Unfortunately, I could'nt use that same phone with my amp again. Just a thought on your problem.
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If I understand your setup, you've connected the receiver antenna terminal to the output of the antenna amplifier. If this is true, I'd suggest trying the receiver using a plain old FM dipole antenna (available at Radio Shack and other stores) or even just a piece of wire hooked to the antenna terminal. You should be able to pick up some local FM stations then.
What might be happening is that the FM is being filtered out by the amplifier. Some amps made mainly as a TV signal booster have an FM trap designed to block the FM broadcast band. In the analog broadcast days, the FM band was right near the sound part of a TV signal, and the trap was there to prevent interference. It may be filtering out your FM band.It may also be possible that you're just overloading the FM antenna input with the amplified signal. Sometimes a signal can be too strong. Using a simple wire antenna will let you test the receiver by itself.
Other than connecting an antenna you shouldn't have to do any setup for FM reception. If you still get no stations at all when using a simple antenna, then the receiver may need service. But I doubt Circuit City would have sold a floor model that was defective, even at the very end, unless it was clearly marked as such and sold "as-is". I'm pretty sure you'll find that the receiver works with an antenna made for FM.
Keep in mind, poor reception is
not something that your service provider will fix just because you want
them to. It must be justifiably cost effective for them to put up new
towers, which will ultimately be criticized by cities, home owners
associations, etc. Most users think there is nothing they can do to
improve their cell phone reception by themselves. This is most
certainly untrue, and the following will explain what you can do to
ensure great mobile coverage without waiting for a new tower to
Your cell phone uses a lot more power when connecting a call than when
it is on standby. Often, your battery can be strong enough to attempt a
call, but not strong enough to find a signal. If you find you are
having signal problems, try to keep your battery charged to 2 bars or
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Buildings and other large structures are very unfriendly to cell phone
signal. Rather than making calls from deep inside buildings try moving
outside or to a window to place your call. If you are having reception
problems on the street try walking to the nearest intersection as they
typically have better coverage. Cellular band radio waves do not
effectively penetrate earth: if you are underground you will likely
receive no signal.
3Install a cellular repeater.
If you are having cell problems in one location, such as your home or
office, then try installing a cellular repeater. Cell phone repeaters
pick up low cell signal with an antenna, boost the signal and broadcast
it over the coverage area. They typically need at least 2 bars of
signal where the antenna is placed (usually outside or on the roof) but
can substantially improve cell reception, as well as battery life and
data download speeds. Some repeaters might need technical knowledge
such as the frequency of your carrier, and only work for one service
provider. For a less technical approach that improves reception on all
carriers, use a dual-band cell phone repeater.
4Upgrade your antenna.
A few cell phone manufacturers make a "Hi-gain" antenna for their
handsets, which may be changed in-store or by the user at home.
Although these won’t improve signal as much (or at all) as a repeater
these antennas are relatively inexpensive and you are not confined to
Most networks operate independently of one another, using their own
frequencies and constructing their own cell phone towers. Chances are
if the signal is bad with one network you can improve by switching.
Most cellular networks these days allow you to transfer your phone
number when you change provider.
6Hold your phone correctly.
Mobile phone antennas are designed to project a signal outward,
perpendicular to the long axis of the antenna. As such, mobile phones
seek signals in a donut-esque shape around the antenna. Normally, when
a mobile is held upright, this is not a problem. However, if you are
holding your phone in a strange way, such as on its side or upside
down, you will hinder the operation of the antenna. Hold your phone
upright to guarantee that your phone can "see" your carrier signal.
7Host a cell site.
This may take time, but where cell phone reception is inadequate
property owners can host small cell sites on their properties for major
wireless carriers. 3rd parties with Wireless Revenue Programs allow you
to register your property to be eligible. Then when there is carrier
interest in the area you'll be on the short list of places they choose
from and will have optimal coverage. They may even pay your phone bill.
please help me. i nid a restriction code for my LG C1300 from xcingular network USA, i need to use this phone here in the philippines.. pls help.. thank you.
FCC ID: BEJC1300
well it's the same as the days of old, the antenna has a range of reception. the further the sations antenna, the lager your antenna must be. just because you bought an amplified antenna does not mean you will receive the deep fringe station. also the antenna must be UHF and VHF to receive the broadcast in digital. most of the braodcasters have gone with the UHF band because it is more stable for the bandwith of digital broadcast. the UHF band is very directional as well, so you must be pointing to the broadcasters antenna. no set top antenna will work if you are further than 15 miles of the broadcasters antenna. the roof top UHF/VHF antenna with a preamp is the way to go. I have tested every compact antenna and unless you live in the city that the broadcast generates you will get no reception with these. terks are junk, and any small amplified antenna does not work if you are in low lying areas. roof top, roof top,.....ROOF TOP!!!!!