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I don't know how to use this.

I need to know how to tune and match with this meter.

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You hook a jumper wire from your radio to radio input of the meter . Then hook your antenna to the other side of the meter., Turn the radio on to channel 40 make sure your meter is set for for,now key the mic.make the adjustment to cal on meter. Now put the meter on ref , key the mic and write down that number. Now go to channel 1 and do the same. If your numbers are under a 2.1 you are ok. you should also check it again on channel 20 or 19.

Posted on Nov 04, 2013

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1 Answer

Tuning 6/10 meters


I\'m just pulling this out of nowhere, as I don\'t know what radio you are even dealing with, as the question does not say, but I\'m guessing you have an ICOM 706?? If you do, and you intend on using is on both 6 and 10 meters, you will need to also purchase an automatic antenna tuner to go along with the radio, and a compatible antenna. Look into some of the tuners and antennas listed for the radio at the bottom of the page linked to below:



http://www.universal-radio.com/catalog/hamhf/706.html

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12volt battery not working?


Use a volt meter to check the charger, should be putting out around 14.5VDC, doesn't have to be exact but does have to be higher than the battery to charge it.

The battery should have at least 13.5VDC just sitting there off the toy.

My guess is the battery is shot, they fail pretty quick if not used often. Be sure and check the fuse that should be part of the battery, unless they have changed their design.

Another fail point on ride on toys is the switches that make it go, especially the foot switch.

You can get parts from Peg Perego but they are proud of them. I usually figure out what switch style it is and find them on eBay or a parts house. Ebay also has resellers who can match up with PP parts if not an actual used one that is good. Prices vary so shop around.

If you don't have a volt meter, they are on eBay as well, and if you don't know how to use one, the internet has many many sources to teach you how and they will also tell you how to test switches with an ohm meter which all good meters have as well as voltage. Shop around, get a cheap one unless you plan on using it a lot, still shouldn't spend more than $20 and that will be a good one. Don't limit yourself to ebay if that is not where you want to shop, it is just an easy source for most stuff like that.

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1 Answer

My 25LTD CB has been tuned and peaked. I just replaced the meter and it spikes hard when keyed. How can I adjust it without degrading the tune?


It could be the variable resistor that sets the meter movement or it could be the person that tuuned and peaked it didn't know what they were doing and set a high dead key. The radio should key low and then swing high. You must first track down which one is the problem. You will need a good watt meter for that. If it isn't a problem with too high a dead key then go to CBtricks and look up your model of radio and find the "VR" variable resistor that sets the meter. Open up the radio and turn the resistor to match the meter scale with what the watt meter reads.

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1 Answer

Need help fine tuning my cb radio


You will need an SWR meter to check your antenna. FIRST.
I would find help at a local cb shop.. They SHOULDN"T CHARGE to help you SET the swr. only if you need a part or something ..
I don't charge to SET SWR"s .. only if the cust needs a insulating washer or another antenna, or new coax, so-239 etc... I would be glad to help you.. let me know if we can

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2 Answers

How to match a antenna to a cobra 29 LTD Classic


You are actually tuning the antenna to the vehicle it is mounted on here are some very good resources. http://www.rightchannelradios.com/pages/cb-antenna-tuning-guide-pv-c0-61.htmlhttp://www.wilsonantenna.com/swr.php

Be aware that if your radio has been modified it may produce a dirt signal that an swr meter may read as reflected power. In this case it may be more accurate set with a unmodified radio also if your radio is setup for a linear it may have a deadkey to low for the swr meter to calibrate correctly.
Hope this was of help.

Nov 26, 2011 | Cobra 29 LTD CB Radio

1 Answer

How to match a cobra 29 ltd classic to its antena


You will need an SWR meter to check your antenna. FIRST.
I would find help at a local cb shop.. They SHOULDN"T CHARGE to help you SET the swr. only if you need a part or something ..
I don't charge to SET SWR"s .. only if the cust needs a insulating washer or another antenna, or new coax, so-239 etc... I would be glad to help you.. let me know if we can -- CB Shop Temple, TX

Nov 26, 2011 | Cobra 29 LTD CB Radio

1 Answer

I have a Radioshack trc-487 cb radio with weather band . I would like to turn up the modulation... Peak and tune... get better reception... anything... I would like to know the internal parts I have to...


Hello Randy, do you have a fiberglass or stainless whip? What is your SWR & power meter readings now? --- The stainless whip may be creating a feedback and picking up static from transformers. Do you have a power microphone? If so you need to use a modulation meter to set it for 100% modulation. It could also be causing the crackling, that or your engine alternator.

A 1:1 SWR implies a perfect match between all elements of the antenna system...this is what you want. If an antenna system is not working well, the power reflected by the antenna will travel back through the transmission line and arrive at the output of the transceiver. From a practical point of view, SWR numbers in the range from 1:1 to 1.5:1 are considered to be very good, meaning that the antenna is radiating most of the power sent to it...

I would not recommend tweaking the boards on the realistic radios. You can however tune your whip. Start by making a base coil with some copper wire, 14 gauge will work. Run one end under the whip mount end and then tightly wrap the wire around the base of the whip. Experiment with 20 - 30 wraps for best performance & SWR.

The Astatic 575M6, or the Sadelta MB-4(hard to find) are very good power microphones that will help with modulation and peak power transmissions. Let me know if you need more help with tuning, if the "crackling" is still there.

Here is a link for your radio, in case you don't have one.

http://support.radioshack.com/support_electronics/36554.htm

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1 Answer

I cant get in to my pay pal account can you help me


You can click the word Problem with login? just below the login button. then choose any of these three

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don't know what email address I used

I don't know either one

After that you need to input details that will match your details on paypal.

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1 Answer

Just bought a cobra ltd crome ive mounted every thing how to i clibrate it with my attenna? when i key up both rx/tx and ant lights up red?????


This is a common misunderstanding when it comes to communications equipment. You don't tune the antenna to the radio, but rather you tune the antenna to the vehicle. the vehicle is the ground plane for your antenna system.

With that said You will need an SWR Meter between your antenna and Radio. follow the instructions for your meter for calibrating the meter and follow the instructions for your antenna for adjusting the length.

Jul 14, 2011 | Cobra 29 LTD CB Radio

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