Question about Connex 3300 240-Channels Base CB Radio

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Fresh install SWR will not come down

Connex 3300 wasin storage 10+ y. installing in a 1/2 ton pk for work. I bought a raido shack mag base bottom load ant. cant get swr to drop. besids i have forgoten what channel to use .. feeling sorta dumb lol

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I try to use the center channel of where I'm going to be talking the most to get my swr the lowest ( ch.20 for all 40),but sometimes you can't so try to remember this; if it's low on 1 and high on 40 it needs to be shortened if it's high on 1 and low on 40 it needs to be lenghthened.

Posted on Jan 29, 2009

  • craig_vader
    craig_vader Feb 26, 2012

    if your setting the SWR on your radio, this is how to do it, first put your radio to SWR-CAL. NEXT turn your RF-GAIN TO ZERO, then set your SQUELCH TO ZERO, next set your channel to channel 1, if you have a SWR KNOB TURN YOUR KNOB ALL THE WAY TO THE LEFT, now with the mic depressed, slowly turn your SWR KNOB CLOCKWISE, till the SWR METER shows i in the bar graph. you have just set your SWR for the radio. if you want to match your anntena you will need a SWR BOX THAT HOOKS UP TO THE COAX.

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Have you checked the coax connectors? It's gotta be a bad connector,damaged coax or a defective antenna. Careful--don't test "too much" or you'll burnout the final amp!

Posted on Dec 28, 2008

  • Jan Parker Dec 28, 2008

    have you checked the coax connectors? It's gotta be a bad connector,damaged coax or a defective antenna. Careful--don't test "too much" or you'll burnout the final amp!

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1 Answer

Can I tune my antenna using the meter on my radio?


yes,but you want to make sure your antenna is tuneable.If your SWR is to high or to low you want to be able to adjust the antenna to bring the match up or down.Anything under a 1.9:1 is ok but the lower the better

Jul 15, 2014 | Connex 3300 240-Channels Base CB Radio

2 Answers

I have a connex cx3300hp i need to know the vr adjustments for meters and power and i dont have no modulation please help me jerry.? thank you.


i have a 10k on a quad mag mount my radio is a galaxy 98vhp peaked and tuned and i talk every where i key on base stations no problem that antenna is a beast you have some issues goin on over there u need to get that tuned i have a flat 1.0 and i run around 250 true watts and my swr never goes past 1.1 you wanna be loud n talk tune that puppy right biggest thing for them is ground best thing is to run it on a huge magnet best ground there is and you have to have good coax that has alot to do with it just tiny little things you have to check make sure everything is set up correctly

Oct 25, 2013 | Connex 3300 240-Channels Base CB Radio

1 Answer

I have a 3300hp bought it new in may it has been in the shop every month sence. iv taken it to 6 different cb shops and no one can fix it it will recive well but when i talk on it people can barely...


Hi, my name is John. Welcome to FixYa. Check your antenna, make sure it is grounded good and nothing is blocking it. Have the SWR checked. They will do it for free at Radio Shack or any CB shack. Thanks for choosing FixYa...John

Nov 23, 2010 | Connex 3300 240-Channels Base CB Radio

1 Answer

Knob functions


they can help you with this 10 meter radio it has a talkback reverb with a rodger beep
www.theradioco.com
techman

May 12, 2010 | Connex 3300 240-Channels Base CB Radio

1 Answer

Can you calibrate a General Lee


buy a external swr meter.. usually like 10 bucks at any truck stop.
o your gonna need a jumper wire too for this.which is a short piece of coax you can get at any cb shop

May 26, 2009 | Connex 3300 240-Channels Base CB Radio

2 Answers

Connex 3300 hp


U mean on sideband? Frequency counter only useful on other than sideband operation. This does not mean the carrier insertion osc. is on frequency. If it needs adjustment, your voice will sound high/ low on transmit. Incoming signals will sound right after adjusting the osc.

May 14, 2008 | Connex 3300 240-Channels Base CB Radio

2 Answers

SWR calibration waaay off the chart


You are using an inline swr meter to set your swr right, not looking at the meter on the radio? Here is the process to set swr on an antenna:

You must have an inline swr meter, which can be purchased online or from a truck stop. The ones at truck stops are cheap ones, but will do the trick for the most part.

You connect your antenna 18ft coax to the antenna plug of the swr meter, and a jumper coax (any length) to the transmitter plug of the swr meter and then to the radio.

Close all doors and make sure no one is messing around with the vehicle or antenna. You must be set up as you would normally be transmitting.

Now set your cb radio to channel 40 and your swr meter to fwd. Key up your microphone1.gif and at the same time turn the set knob on the swr meter until the needle is at the line that reads set. Unkey your mic and set the the swr meter to ref. Key up again and note what your reading is. Now leave the swr meter in ref and turn the cb to channel 1. Key up and take your reading. If the reading on ch 1 is higher than ch 40 you must raise the stinger on your antenna. If ch 1 is lower than 40, you lower your stinger. You are trying to get lower than a reading of 3 and as close to 1.5 as possible. If you lower your stinger as far into the antenna as it will go and you need it shorter, you cut the bottom of your stinger no more than 1/2" at a time, and recheck your swr reading after each cut.

Once you have gotten the best reading you can, connect your antenna directly back to the radio.

The setting of your swrs is to make your antenna as efficient as possible, by trying to get it as close as you can to a 50ohm impedance. THE ONLY PART OF YOUR SYSTEM THAT CAN CHANGE YOUR SWR IS YOUR ANTENNA, not your coax and not your radio. Your radio and coax can give you false readings, but only the antenna can actually change the swr.

On the swr meter, the fwd/ref switch stands for forward (power that is being transmitted out) and reflected (power that is reflected back into the radio.

Just for information sake, the swr cal switch on your radio is used to set the meter to reflect the swr that your antenna is set at. The meter on your radio is like a dummy light on your car. ONCE AGAIN, YOU CAN NOT SET YOUR SWR ON YOUR RADIO, only the antenna.

Dec 29, 2007 | Connex 3300 240-Channels Base CB Radio

3 Answers

Connex 3300hp radio


Hi,

Based on your post/description:

1. how do i set the swr
Normally SWR are calibrated on your operating channel (where you usually stand-by). This is to maximize transmit power and receive sensitivity. To set SWR, switch to channel of your choice, switch SWR control to CAL, key or press PTT, while pressing PTT rotate ADJ knob until max deflection of needle on meter, release mic, switch control to SWR, key/press PTT, needle reading/deflection is SWR for that channel.

I would suspect that your SWR will vary from your current 1.4. This is because you have too big excursion of channels (240 channels).

2.reading a 1.4
This reading is good enough and should do. However as earlier stated, you seem to have 240 channels which would mean that your radio + antenna moves in a wide bandwidth and since the antenna tuning is affected by frequency, your SWR will also be affected by channel.

Best if you can further lower it down.

3. some cb cant get me
This is because the standard CB radio is only 40 channels. The next would be a 80 channel and then 120 channels.

4. is it my radio
Yes, you have a wide coverage radio almost an extended 10 meter rig.

5. do i have to set my radio on high or low to set my swr
I will assume you are referring to power output, set it to HIGH when doing SWR calibration

Hope this be of some help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Nov 08, 2007 | Connex 3300 240-Channels Base CB Radio

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