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Ant warning lite comes on above ch 13- 40 but is off on ch 1-13

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Hi, my name is John. Some radios are tuned a little different than others, have someone check your SWR on your antenna. They can do it for free at Radio Shack. Nothing really to worry about, make sure your getting a good ground on it. Rate this solution on the thumbs.thanks.John

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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1 Answer

Adjusted mag mount antenna w/a swr meter. When checked it w/the meter on the '06 uniden pc78 elite, ch 40 was a lot higher. Which is correct ?


The coax jumpers between the meter and the radio can change the SWR a little bit. It is very unlikely the the antenna can be that low on 1 and 40. Set it for the lowest on 20 via the radio and as long as you are under a 2 on 1 and 40 then it should be OK.

Oct 10, 2016 | Uniden Radio Communications

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The spot for brakes on the dashboard has an IP lite up on it. what does that mean?


CHECK OR HAVE SOMEONE CHECK BRAKE FLUID LEVEL, BE SURE PARKING BRAKE IS NOT ON!

Jan 22, 2016 | Cars & Trucks

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Low pwr on xmit,weak rec,swr alert lite on xmit swr 1:4-1 on ch 20


you have no power because your radio is not tuned to your antenna.You get a new radio and put junky coax and a decent antenna and you expect it to work right. Get 75 ft of rg-213 and you will see a change.

Jan 08, 2013 | Galaxy Radios DX-2547 40-Channels Base CB...

1 Answer

I've got a Cobra 29 with WX and BT, the antenna light comes on, the swr meter barely moves and it doesn't seem to send or receive, still gets weather. May have been run with a bad antenna, got a new...


Please make sure you are tuning the antenna correctly.



It is important to tune your CB radio antenna to the proper length. The length must exactly match the wavelength of the frequency you transmit on. Or be really really close.

All Cb antenna's have a way to adjust the length of the antenna. If it's a mag mount, the metal whip can be slid in and out of a metal collar. Usually a set screw. If its a fiberglass whip, the way to tune it is on top. It either has a small metal rod with a set screw to adjust the length, or it threads in and out to adjust length.

Either type you have it will need to be adjusted for proper length. Here is how to tune the antenna to lowest SWR.

Some radios have a built in SWR meter. Some do not. If yours doesn't have an SWR meter, then you have to use an external SWR meter. Radio shack carries one, and you can find them cheap on ebay.

If you have a built in SWR meter or external, the procedure is the same:

1. Turn the radio to CH 20.(This is the center of the band.)
2. Switch the meter switch to CAL. (CAL stand for calibrate.
3. Key the radio. (Important. Do not talk while keying the radio.)
4. turn the CAL knob up until the meter hits the CAL mark.
5. Now while still keying the radio flip the meter switch to SWR.

Where the meter falls after that point is you SWR reading. If its above 3, that is real bad. 2 is not gonna kill your radio but its not the greatest. 1.5 and under is a good place to be, but the lower the better.

If your SWR is high, Here is how to find out if your antenna is too long or too short.

1. Turn to CH 1
2. Repeat SWR procedure. You must calibrate every time you do it.
3. Remember the SWR reading.
4. Turn to CH 40.
5. Again repeat SWR procedure.
6. Compare the reading between CH 1 and CH 40.

Now if the SWR is higher on channel 1 then channel 40 your antenna is too short. You must make it longer.

If the SWR is longer on channel 40 then on channel 1, then the antenna is too long, you need to make it shorter.

Make height adjustments about an eight inch at a time, and take reading each time.

once the SWR is significantly lower and the reading on channel 1 and 40 are about the same, you a about matched. At this point turn the radio to the center of the band, channel 20 and take an SWR reading.

You should now have a low SWR reading, 1.5 or under. If you are 1.5 or under, you are good to go.

If you cannot get the SWR to an appropriate level, there may be an antenna problem.






Now: If you have adjusted the antenna properly and you still get the antenna warning light, then the antenna warning circuit may be out of whack. Use an external SWR meter.

You may also be getting common mode current. Its when RF comes down the outside of the coax. If the swr goes up with modulation then it's common mode.

Here is how to stop common mode.

As close to the antenna as you can while still inside the vehicle, take about 6 to 8 inches of the coax, and coil it up into tight even coils and secure into shape with electrical tape.

This is an RF choke, and will stop the common mode current.

If all other radio's are fine and no ant light come one, and are all showing low swr, then turn VR6 back to disable the ant warning light. "only do this if the ant light comes on when SWR is lower then 1.5 and does not swing up with modulation showing that the ant warning light is miss aligned.

Nov 07, 2010 | Cobra 29 LTD CB Radio

1 Answer

TO SETUP MY SWR, SHOULD I USE THE METER IN THE RADIO OR AN EXTERNAL SWR METER . THE SET IS THE NEW 29LTD BT. ALSO AT TIMES THE ANT LITE COMES ON WHEN TRANSMITTING. IS THIS NORMAL?


Always use an external meter to set SWR. If the ant. warning light comes on it indicates a problem with the SWR. Check it with external meter.

Oct 19, 2009 | Cobra 29 LTD CB Radio

1 Answer

Tv/video mode with no remote


you should have a menu button on the
frount of the tv press it and then select
with the (ch up) (ch dn) to highlight the
input/sorce or ant select with the enter
button then (ch up ) ( ch dn) highlight
video 1 or 2 press enter .

If this was not helpful tell me the
model # and look it up on my data base.


Rob

Sep 21, 2009 | Microsoft Xbox 360 Console

1 Answer

My tv just started to look like if I didn't have cable it has a breeze


must be off channel, if using cable box make sure its on ch 3, also check Ant switch on remote if two ant inputs

Aug 28, 2009 | Maxent MX-42XM11 Television

3 Answers

ANT lite coming on for the first time when you key up and will it hurt radio


The type of coax and antenna should not matter in this case. What that light is telling you is your SWR is above a safe working level. You need to tune your antenna using an external SWR/power meter. It may also mean that there could be a bad ground or a bad connector. You probably just need to tune it up. Anything below a 2.0 SWR is acceptable.

Jul 07, 2009 | Cobra 29 LTD CB Radio

1 Answer

I do not have remote 2 year old threw it down heating vent. I have universal remote but really does nothing. TV is set to aucun signal YPbPr1. When I push imput I see the choices and have tried each...


Press input repatley until you get to (ant 1)
or (ant 2) then press the chanel up/down to
get to ch 3 make sure the converter box is
conected to ant input.

Jun 24, 2009 | Televison & Video

2 Answers

Only get about 4 channels


Make sure in the on screen menu that the tuner is set for CABLE or AIR depending on whether you have cable or an antenna. The channel frequencies are the same for ch 2 thru ch 13 but everthing above that is different depending on your source.
Hope Ya Fix It!

Feb 08, 2008 | RCA TruFlat 27F520T 27" TV

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