Connex 3300 240-Channels Base CB Radio - Answered Questions & Fixed issues

Combination of hi / low switch and the band knob, I believe C band with the switch on low will give regular channels.

first you need a power meter.like a bird 43 .then you have to open the radio look for L18,L17,L14,and L10 . Now that you have which inductors to tune have at it.

get a K-30 antenna ist magnetic if that dont work your speaker in the Cb is broken

audio i.c

only the CB band to TX on.. you may RX on any frequency. ch.1-ch.40 am and SSB if it had it.. are the FCC allowed channels. yes there are people on those other bands. user beware.

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

That style will get about 60w PEAK.. on older styles.. the newer Mosfets will do about 30-40ish.. Meters, are preference.. most are just RMS styles. and you wont see the Peak reading which is fine. there are alot of meters and brands.. Bird, Dosy, MFJ, Siltronix. they all have pros / cons. if just want simple workman makes some lower end styles. also para dynamics.. there are some MFJ and other brands that have cross needles that show both power and swr at same time. but they will start in the $60ish range and go up from there.

check your swr

4600 turbo? 3300hp? never heard of a 3300 turbo 3300 https://www.bellscb.com/products/tenmeter/connex/manuals/Connex_CX-3300HP_OM.pdf 4600 turbo http://www.manualslib.com/manual/966347/Connex-4600-Turbo.html 4300 hp and turbo Owners Manual

None of them if you have to ask. It requires a license to operate.

Any radio can have Talk Back.. all it is is leaving the RX active on TX and the sampled audio goes to the speaker that you can hear....

Plug in an external speaker to the pa jack ... Switch the band selector to pa and see if you hear yourself... No? Bad audio chip

The RX wire could be broke in the mic cord. You will still get receive when you have the talk back is on, but it will be low. Try another mic.

the power switch is fused shut you need to replace it and also the 5v logic supply regulator has failed perhaps this prob means there is no supply too the PLL and logic this can all be caused by poor quality cheep power switched employed in every cb ive ever serviced rubbish and cruddy so check for all voltages and when and where you need them work from this then youll quickly find the issue

failed driver final transistors or voltage supply to driver and final if your RX is aok then chances are the PLL and TX mixers etc are aok leaving only the first answer or a broken mic or TX switching circuit caused prob by a bad mic cable

dry joint .... usually its the actual echo level pot control has a bad or dirty wiper they are low quality

rf gain is about local coms if you want your cb to RX far away stuff set it too high but local stuff like friends family that are local then you want too set rf gain to low then only local signal can trigger the squelch ... so the radio will ignore the static and only trigger you when needed ? see what i mean rf gain ye a DX guy will set it high or too listen to people like over 50K away and let then break the squelch...min

the switch for low and high power the contacts are gone or you need to check the DC voltage to the output section and the voltage drop on TX usually the likes of the cobra 148GTLDX has a bridge board you can remove and add some LCD DVM for current monitors and setting of bias etc so perhaps a regulator has failed or a resistor or the contacts on the switch you need to trace it out using current readings

your keyboard membrane is needing cleaned with IPA you must have spilled coke or pepsi or somthing conductive on its membrane so i would just look to replace it you need to perhaps replace some capacitors in the controller board section {mpu for it} i think dry caps cause this esp low value ones around the mpu

FOR ALL YOU MISS GUIDED FOLKS CONNEX IS NOT PART OF COBRA IN ANY WAY SHAPE OF FORM PERIOD ...CONNEX IS MADE BY RANGER U S A . AS FAR AS THE RECEIVE IT IS PROBABLY ARE MISSED SWITCH OR CONTROL NOT SET RIGHT SIR