Just installed a connex cx 3300hp not sure of settings for cb example channel 16 mode switch am fm pa? band selector switch d/a e/r f/c? band hi lo ? thanks bill

the switch with E/A, F/B, G/C, H/D is the band selector. the switch with PA, FM, AM is the mode selector. use this switch if you want to work on FM or AM.

here is a link if you want to download the manual:
http://cbradio.nl/galaxy/Manual_Galaxy_DX44V_ENG.pdf

MAKE SURE ALL THE CONTROLES ARE SET CORRECTLY R-R GAIN CLOCKWISE FULLY, SQUALCE COUNTER CLOCKWISE FULLY AND HAS THE RADIO BEEN MODIFIED FOR THE 11 METER BAND BY SOMEONE

should be set on D/A

Radio setting for connex 4300

1. Band should be on D
2. 10khz switch off
3. PA, AM ,FM switch to AM

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

FM is just a form of modulation, not an actual frequency. The frequency doesn't change between any of the modes (LSB, USB, AM, FM, CW).

For example, if you are on channel 19 (27.185MHz) on AM (Amplitude Modulation,) switching to FM (Frequency Modulation) mode you would still be at 27.185MHz, but using a different form of modulation.

The Band knob moves the frequency coverage from 25.615 and 28.305
The Hi-Low switch determines the lowest frequencies and highest.
Here is your owners manual.
http://www.cbtricks.com/radios/connex/cx_3300_cx_3300hp/graphics/connex_cx3300_cx3300hp_om.pdf

turn the rf gain all the way uphave your pa fm am knob on am your band knob on your desired band hi rf power band hi or low depending on wich ever u want to uss

On the 3300hp use band switch at position A band switch to hi

what radio do you have? does it even have sideband channels? some radios don't come with them, of fm or upper or lower side bands and short wave