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Hello and welcome


Answers to common questions:

  1. How do I erase a Memory Channel in the Airband Scanner Maycom AR-108?
  2. My Zodiac M-4040 has almost no RF output power... Is there a solution?
  3. My Zodiac M-244 seems to have a modulator problem. Any help on this?.
  4. My Zodiac M-244 hums even when squelched. Can this be cured?
  5. The channel selector in Zodiac M-244 is noisy when changing channels. Is that normal?
  6. Channel 3 and 40 are factory installed in my Zodiac M-244. I would like other channels.
  7. How to use Zodiac Profi 6 on the 10 Meter Amateur Band in FM? (German version. Opens in a new tab.)

Have you questions or problems?

Have you questions or problems you would like to have the answers to? Simply send us an e-mail. We will answer all correspondence by e-mail.

To remove a memory channel in Maycom AR-108
This function is not described in any handbook.
To remove a no longer used (or a channel programmed by mistake), you do not have to perform a reset, which kills all the programmed functions. Do as follows:
When not in Memory Mode already, press the MR button. Select the channel to be removed by using the UP / DN switches. Press and hold the FUNC button and then press MR. The memory channel number starts blinking. To clear the channel, press and hold the FUNC switch while you press the MON switch for about 2 seconds. A beep tone indicates the successful deletion.
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The transmitter power in Zodiac M-4040 slowly vanishes? Is there anything to be done about it?
This phenomnenon has a cure. You don't have to give up your Zodiac M-4040 just because of this problem. But it is necessary to send us your transceiver as a Communication Test Set is needed for this repair.

After repair your M-4040 works like it once did when you bought it!
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Modulation problems in Zodiac M-244:
Reports on trouble with the modulation in M-244 have been reported. Mostly can this be traced to the relatively slow rolloff characteristics of the limiter circuit. The remedy is just to change the 10 Mohm resistor (R 75) in the limiter discharge circuit by a 470 kohm resistor, and the modulation sensitivity recovers much quicker.
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Noise from the loudspeaker in Zodiac M-244 in squelched position:
You could probably cure this problem yourself. Nothing will be changed to the set itself, just a re-location of the channel selector cables.
At the front of the set there are two flat cables running from the channel selector. These run parallel to the audio cable to the speaker amplifier, and when they are too close to each other, noise could stray into the amplifier. Simply bend these flat cables slightly inward towards the middle of the set. In most cases this will cure the problem.

In case the noise still persists, you will have to send your M-244 to us, and we will cure it properly for you.
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Sounds like you fire a machine gun when changing channels in Zodiac M-244?
The solution to this problem is most probably the replacement of the channel selector. You can order the channel selector from us at any time.
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Programming list, Zodiac M-244 priority channels:
Any channel from 1 to 40 can be programmed. Please keep in mind that the channel 40 equals the value "0" and therefore this channel position requires no diode array. (In the Swiss and German versions this could be the case in the position "B".)
Please compare one of the arrays installed with corresponding channel number in the list below. Then bend the pins of the array corresponding to the channel of your choice.

Please remember that you cannot get any other channels than the legal 40 CB channels.
In case of programming an illegal channel you will either get channel 9 or 19.
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Channel list

Channel / Code Channel / Code Channel / Code Channel / Code
1 C O X X X X X 11 C O X X X O X 21 C O X X X X O 31 C O X X X O O
2 C X X O X X X 12 C X X O X O X 22 C X X O X X O 32 C X X O X O O
3 C O X O X X X 13 C O X O X O X 23 C O X O X X O 33 C O X O X O O
4 C X X XX O X X14C X X X O O X 24 C X X X O X O34C X X X O O O
5 C O X X O X X15C O X X O O X 25 C O X X O X O35C O X X O O O
6 C X X O O X X16C X X O O O X 26 C X X O O X O36C X X O O O O
7 C O X O O X X17C O X O O O X 27 C O X O O X O37C O X O O O O
8 C X O X X X X18C X O X X O X 28 C X O X X X O38C X O X X O O
9 C O O X X X X 19C O O X X O X 29 C O O X X X O39C O O X X O O
10 C X X X X O X20C X X X X X O 30 C X X X X O O40X X X X X X X

(We do not guarantee the entries, but believed to be correct)

"C" = "Common", located at the marked end of the array (Common pin, must not be cut off!)
"O" = Straight pin.
"X" = Bent (or cut off) pin.
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