Question about Audio Players & Recorders

Open Question

I need to peek up the out going power of my cobra 150 gtl/dx but i dont know how can you please help me?

Posted by on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
localwonder
  • 6784 Answers

SOURCE: what size fuse do i

30 should be enough to run it at optimal level.

Posted on Jan 28, 2009

Ad
  • 478 Answers

SOURCE: need a new Cobra 150 GTL DX power,vol,sqlch pot

you can write to parts department requesting price if you have a truck stop around you which has a cb shop they can sell u one

Posted on Jun 26, 2009

  • 773 Answers

SOURCE: i have a cobra 150

If this radio has been peaked and tuned already, and it is not in need of a full alignment, then it's most likely the antenna.

Your antenna is everything. You need a good antenna, and it needs to be tuned to the lowest SWR.



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.

Posted on Oct 21, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Cobra 150 gtl dx peak and tune


first off if you don't have the proper equipment to do this you will have a cobra 150gtl dx used in the box that you can use for a chock block. turn the wrong can and you will never be able to get it back to working order.

Jan 16, 2012 | Cobra 150 GTL DX Base CB Radio

1 Answer

Need a new Cobra 150 GTL DX power,vol,sqlch pot


you can write to parts department requesting price if you have a truck stop around you which has a cb shop they can sell u one

Jun 26, 2009 | Cobra 150 GTL DX Base CB Radio

1 Answer

Getting regular cb chanels


go to cbtrick.com to radio information go to corba radios and you will find the mod for 11 meters.

Jan 01, 2009 | Cobra 150 GTL DX Base CB Radio

1 Answer

Cobra 150 gtl?


RV12 is the modulation adjust for the 150. Check with cbtricks.com for physical location.

May 20, 2008 | Cobra 150 GTL DX Base CB Radio

2 Answers

Talkback on a cobra 200 gtl dx


This procedure is not as simple as just cutting a wire. Note that you can possibly mess your radio up if any maintenace is not done properly. I do suggest taking your radio to a proffesional to have the talkback removed, but, if you really want to do it yourself, go to ghe following link and basically reverse what has been done.

http://www.cbtricks.com/radios/cobra/150gtl_dx/tsb/cobra_200gtl_dx_tsb_10041.pdf

This is the service bulletin for the addition of talkback to the Cobra 150GTL DX and the Cobra 200GTL DX.

As long as the talkback was added correctly, this can be put back origional.

If this does or does not help, please reply on here or email me at rollincbmods@yahoo.com. I look forward to hearing from you.

Dean
Rollin CBs
Mt. Vernon, TX

Feb 13, 2008 | Cobra 200 GTL DX 4-Channels Base CB Radio

1 Answer

Night watch lights are dimmer than when new


The dimmer pcb driver has a tendency to go bad in these radios contact cobra and ask them they migth be able to send you one if not write back to ma and Il see if I can get you one...Chia

Dec 15, 2007 | Cobra 150 GTL DX Base CB Radio

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

37 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5190 Answers

The Knight
The Knight

Level 3 Expert

74459 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...