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Need a base Recomendation legal base cb....

1

123kid

Active Member
Mar 6, 2012
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Need a legal 11 meter base reccomendation.It cant be peaked and stuff.I need a performer out of the box that if uncle sam comes knocking it wont result in a fine.
 

i am one of the few but i prefer uniden over cobra. the pc 68 xl and the pc 78 xl radios are excelent radios, down side is you will need a power supply if you do not have one now.
 
Why limit yourself to a mere AM radio when you can get a radio that has AM and SSB?
Who says you can't have both?

A Cobra 142, 146, and 148 GTL are plentiful and fairly inexpensive too. Very popular for fair reasons; their receive is xlnt and so is the transmit. Little to no freq drift on SSB; a big plus.

A Galaxy radio will drift a bit on SSB until it warms up. These are also very popular radios too. Some people like the transmit audio of the Galaxy over a Cobra.

You didn't say what kind of antenna you have - or if you use a Low Pass filter. These items can make a difference if interference is an issue. A Low Pass filter might cost a few $$ for a decent one; but worth it.

Low Pass filter at Copper Electronics (lowest price/highest grade CB filter):
Copper Electronics, Inc.

RF%20Limited%20Low%20Pass%20Filter%20(1)%20(Small).JPG


Review of the same filter:
RF Limited DF3000 Low Pass Filter Review


Some antennas throw off more interference than others, such as an Imax 2000 or a Solarcon A99. The Maco V-58 might help. It is a bit more difficult to assemble than the A-99 or the Imax; but it is easier to control 'common mode current'. Now, common mode current can make a difference with interference too; both to you and others around you.

". . .Common-mode current is current that is not opposed or counteracted by an equal and opposite phase current flowing at every point along the line in closely-spaced conductor or conductors, and the outside of the shield has current flowing in a coaxial line.

Any transmission line becomes at least partly, a radiating conductor if we make a poor balanced to unbalanced transition. This can be useful when we wish to use a feedline as an antenna or as a conventional conductor, but it can be detrimental to a system if we do not want radiation or reception by our feedlines. . ."
Click to expand...

A bit technical I'll admit, but this happens quite often. Hams and CBers both can have this problem, but there are solutions.

Antenna height can make a difference too. Antennas mounted higher up will also have less 'fundamental overload' to consumer electronics.

". . .Fundamental Overload refers to the receiver picking up a source so powerful it causes overload. IE, the receiver is picking up the fundamental output of the functioning transmitter, but is overpowered by it. . .'.
Click to expand...

EDIT:
Ground your equipment too. That is a 'must do'.
 
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123kid said:
That filter is a option but will it negatively impact my performance?
Click to expand...

Nope; old wive's tale.

It will only filter out any harmonic frequency being transmitted that is not on the same frequency you are transmitting on, say ch 19 or wherever and NOT allowing to throw off a nasty harmonic above it. Like a closed door.

It is also the same harmonic and IMD distortion products of a radio that can also bleed into consumer electronics.

Keeping your modulation at/below 100% (read 'mic gain') will also be the other part that YOU must control in order to keep out IMD distortion/interference from your end - to a minimum. The filter isn't going to stop that kind of IMD distortion.
 
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the Gal2547

is a good radio for am/ssb...and is a legit radio and if you get a knock they cant say anything...its a good one for ssb,and has the gf its a knoth filter and does a good job of cutting out the noise...73 de JW
 
m42duster said:
Keep in mind that a used base rig could be a victim of bad tuning or clipping by previous owner/s.
Click to expand...

So very true.
Beware if you buy a radio from someone that had it 'peaked and tuned'.

Some radio repair techs will do this right and adjust the modulation close to 100% and adjust the TX coils to peak the output. That is the correct way and is acceptable.

The 'other way' is to remove the AM Limiter and spread the 54mhz trap coils. That is the worst! If you think you are getting complaints now, just wait 'til you hook up a radio that had these mods done.
Bad tech; no soup for you!
 
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You could always go with an older model too. There are the Uniden/President like the Washington and Madison radios with USB and LSB. Or is you could go with a Zachary T or Dwight D for their non SSB counterparts. Cobra has the 2000GTL. Many you find will be clip and hacks, but there are some virgins out there as well. A good shop should be able to right some of the wrongs done as well. I would stay away from clipping any limiters. Doing a modulation adjust ment is good if it is done right. A good shop will have an o-scope and know how to use it. Your radio will sound clear and crisp, but will also put the power where it is supposed to go. Not spatter it across 5 channels. Its like a laser vs a flood light. The flood light may be more powerful, but the laser is concentrated and thus shines farther.
 

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