Connex Radio Communications - Page 8 - Popular Questions, Answers, Tips & Manuals

If it is new take it back and have it checked

Turn the BAND knob (under the RF power selector switch) in conjunction with the High Low selector switch to choose band A, B, C and in the other position D, E, F. A listing of frequencies that can be tuned in this manner can be found by clicking the link below:http://hotspotcb.com/charts/freqchar33.htmlA few words of caution.. the FCC takes a very dim view of unauthorized use of frequencies. The only range of frequencies that you can legally use without an FCC issued license (in the U.S. anyway) are those in Range D. If caught transmitting on any of the other frequencies without the proper license(s) fines and imprisonment may result. No one ever expects to get caught - but plenty do. If you'd like to gain the use the 28Mhz and up frequencies, check out: http://www.arrl.org/licensing-education-trainingAmateur radio is not shackled by channels, power limits less than 1500 watts nor limited to AM and SSB modes. Check it out! Good luck!

Check power leads inside of radio, "usually red and black" right off the leads there should be a black diode "shorts" if wires have been hooked up backwards, also check for an open foil on the printed circuit board.

Pin2 of the mic may be shorting to ground.

hello first of all can you check your output power from the radio using a swr/power mtr it should read 4watts am and maybe 12watts ssb have you checked your antenna is properly matched using the swr mtr if you answered no to both these questions this could be where the problem is goodluck with it

• Under the top cover of the radio is the solder side and a 440 Kilo Ohm resistor (See Pic)

• More resistance will quite the talk back. Less resistance will make it louder. You will need to experiment a bit to find the level that suits you. I would start with a 200 Kilo Ohm.
• This is for the more common Connex with the knob that has an adjustment for echo/talkback. If you have the other on then say so and I will direct you for that one.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards,Tony

http://www.cbtricks.com/radios/connex/cx4300hp/index.htmBeware there have been a few design changes thru the years be this should not matter as far as the owners manual goes.

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 Any shop shouldnt charge you just to see if it works!!

Here's a list: Frequency ChartKeep in mind - only those frequencies in "D" can be transmitted on in the US. These are the Citizen's Band (or C.B.) Radio frequencies. The others are above and below the FCC allotted range for CB. Transmitting on these other frequencies requires an FCC issued license.You can face fines, imprisonment or both if caught transmitting without the proper license.

• With the switch sitting as it is in the picture below (actual switch recessed tho the right. Soldier the wires in this order.

1. Black
2. Red
3. Lite Blue.
4. Dark Yellow (This yellow wire comes from the mic cord itself)
5. Shield.
6. Lite Yellow. (This yellow wire runs off to the side of the mike to the electrical components inside the mic)

• Standard 4 pin Cobra mic tip to run it to that Connex.

• Pin 1 - Shield.
• Pin 2 - White.
• Pin 3 - Red.
• Pin 4 - Black.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

• Sounds like you had a problem with the antenna set up or the corresponding connectors. If not done and checked right you will get an SWR through the roof. When the SWR is high the heat is returned back down the coax to the back of radio and right to the final transistor and smokes it.

• Your radio being in a box for 3 years should not have really had any effect on its performance. There could have been some dust collect in there. You might have had the power turned up to high. Pop the covers off and see if anything is burnt. That's the first step.

• Hope this helps.

Hi looks like youve blown what we call the dummy diode at rear of radio this will have to be replaced although you can remove this yourself if you need it working pronto so firstly remove both covers of rig ,look closely at circuit board at the rear on the right hand side as you look you will see a black diode with silver stripe remove this ,your radio should operate fine now ,but please make sure you have it replaced as soon as possible as this protects your rig from damage goodluck

I have a connex cx-4300 hp it's has poor receive I want to turn up receive a little bit I guess what I'm asking is what tuning pod tunes the receive

• Here is a link to the frequency chart for the Conexx 3300 http://i1236.photobucket.com/albums/ff442/Ironfist109/freqchart.jpg

• This site does not allow a big enough spot to upload a diagram that would be beneficial for this purpose so I had to upload it off site. Since this radio is often converted to run on 11 meter (CB frequencies) the diagram I uploaded corresponds with the frequencies after conversion.

• On the Connex radio's the band "HI/LOW" switch determine the band you are on in relation to the knob. If you want the original, stock, frequency chart let me know and I can put that up as well.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

It sounds like an cold solder joint if the radio has set unused for a period it could be a electrolytic capacitor. After this condition reappears preferably on the bench remove the solder side cover an gently press on the pcb board with a no conductive objected a pencil with the eraser contacting the board a low light area might reveal a spark if your luck.
Remove power from radio and turn volume know on then off. If you are handy with a soldering iron i would use silver rosin core solder and a 35 watt max soldering iron and solder ******. Now with care tighted the pcb board screws and retouch the solder in the crystal area look around the board for corrision or dull colored solder this can but does no always indicate a cold solder joint. Just a tip dont just remelt solder add a little the rosin flux allows the solder to flow. As temped as you may be do not resolder the long ic chips they are very easily damaged by heat. Good Luck an i hope this was of help.

You may have a dead meter.
Modulation is audio's affect on swing wattage or pep. Notice that needle moving more with your voice.
Dead key or carrier wattage is without your voice enhancing the power only with mic keyed.
I can only assume that the chipset you are referring to is an ic chip audio or pll which must be working if you are receiving audio.
Check your mic cord................ transmit and modulation and even your receive volume can be affected by the cord/mic plug solder joints or broken wires here.
http://www.cbtricks.com/radios/galaxy/dx33hp2/graphics/dx_33hp2_sch.pdf this is a similar radio the General Lee, Connex 3300hp and Galaxy hp2 share boards i believe dont hold me to that thou.

hi sounds to me like you have a dry solder joint or joints along the board somewhere this happens mostly to old rigs as such I suggest you remove both panels and check for bad solder joints you can check this with multimetre if you have one to hand goodluck with it

• Hi, I can help.

• If you never popped the cover (they can tell) then this should covered by the 1 year warranty. As for what happened, well you would have to pop the bottom off and look for the smoked part and get a schematic and replace the smoked parts and go from there. Anything could have happened to be honest. Most likely a resister fried like a cockroach.

• I would contact the place you got the radio from and explain what happened. Talk to them about the warranty fix. If you run into roadblock and you want to fix it yourself then put up some detailed pics of the inside of the bottom side (non soldier side) of the circuit board so I can see what smoked out on your board.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

The only thing that comes to mind is to make sure the antenna is well grounded and to make sure that where it's been re routed that there are no power wires next or close to the antenna wire which can cause interference which will be more noticeable once you turn on the truck.

There are two different frequency conversions early and later radio versions
http://www.cbtricks.com/radios/connex/cx_3300_cx_3300hp/index.htm
Hope this was of help