I have a problem with the low power adjustment not adjusting. The high will. The radio works fine other than that but cannot use the rf power adjustment. I can bring the power [watts] down to 3 watts or so with the high and thats all. This radio was picked up fairly cheap and someone has had their golden screwdriver in it. have fixed several other problems. Are the adjustments the same as a 2980wx. Can't find a lot of info on this radio. I have vr 13 as high vr 16 low vr 14 mod adj. would appreciate any help.
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I have uploaded a pic of the Cobra 200 and labeled each knob/switch with letters to reference.
A) Noise blanker - When this switch is pushed the high pitched noises are canceled leaving a more natural sounding receive. Some like it some don't.
B) High Power - This button adjusts the power output of your radio. Inside the radio the pots are adjusted for a low power setting and a high power setting.
C) Roger Beep - This is a beep heard by the person you are chatting with at the end of your transmission.
D) The 10+ KHz - This button when pushed jumps the frequency up 10 Kilohertz to help you better navigate frequencies.
E) This is where you adjust how you are going to modulate. CW is for continuous wave or Morse Code. Unless you have a key don't worry about this setting. FM is for Frequency Modulation AKA the HAM bands. AM is for Amplitude Modulation. USB and LSB are for Upper Side Band and Lower Side Band respectively.
F) is the band adjustment - Each band (A, B, C, D is a set of frequencies.
G) is a dimmer and the SWR calibrate. To use the dimmer push the dim button in a rapid motion. To use the SWR calibrate side press and hold the dim/calibrate button and using the SWR knob on the right side of the radio (L).
H) SWR/, S/RF - If this button is in the out position then your meter will swing as usual. Push the button in to measure SWR.
I) is the volume and squelch. Volume is what is adjusted to how loud you want your speaker. Squelch you adjust to take out the unnecessary white noise.
J) Mic Gain and RF gain - Mic Gain is how much gain you want to your mic. RF gain is how much of the receive you want to pick up.
K) Is the fine and course adjustment that you clarify your frequencies with.
L) You adjust the echo and the SWR with.
M) is the channel selector.
If you have any comments please feel free to leave them here.
Are you talking about this radio or what others are hearing from your radio?
My friend, no one but the holder of a 1st class FCC radio license is permitted to adjust the input power to the final amp. Further, one needs some pretty technical equipment to accomplish this fine tune adjustment. Failure to properly set this envelope will result in degraded operation and possible failure of your radio.
If you can't live with the present circumstance, get your radio profesionally repaired.
There are little red dots on the edge of each knob. As a starting point, try these knob positions (starting from the knob on the left).. Adjust volume as desired. Adjust squelch all the way counterclockwise (no squelch). Adjust mic gain so the red dot is at the 12 o'clock position. Adjust mic gain so the red dot is at the 12 o'clock position. Adjust light dimmer as desired. Adjust RF Power with the red dot at the 12 o'clock position. Ignore talkback and clarifier for now. Now for the 5 little slide switches... Set all of them to the middle position. Now you should be able to operate transmit and receive.
This is a very good radio, but there are so many adjustment knobs that
you can reduce its performance if you just blindly turn knobs.
After you learn how the radio sounds and works with these average settings, play with each knob, adjusting a little and see what it does for your particular antenna setup. Do some "radio checks" with other CBers and find out what your best settings are. Also read the owners manual for guidance on what each knob does...especially mic gain (too low and you won't be heard, too high and you'll be garbled) and RF Power (to little and you won't reach out very far, too much and you'll overload local listeners). This is definitely not a beginners radio. But it is a lot of fun and will enable you to learn a lot.
the reason i saked is that if you turn the power all the way up it tends to reverse modulate. this happens because the power is using all the transmit voltage for the final and the modulation circuit is trying to use as much as it can so the radio is most likly out of alignment and needs to be realigned. its not that hard if you have the service manual and the correct equipment. i have a factory authorized shop and we do alot of realignments due to the cb shops tweaking the 10 meter radios.
I know the recieve adjustments are ( and make sure you adjust in this order )L9,L11,L12,L13,L14,L4,L3,L5,L6.Adjust them for highest recieve you may have to go through them a couple of times.And again do them in the order I gave you.VERY IMPORTANT!!! Good Luck