Cherokee CBS 1000 Modifikation

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Cherokee has a NEW AM/SSB Base Station. The Model CBS-1000.

The Base Station. Looks very much like the Cobra 2010GTL, but offers a lower profile design. Includes the following standard features:

AM/USB/LSB operation.

10 NOAA Weather Channels.

5 Memory Channels with push button access. Dual Channel watch.

Channel scan. Memory scan.

LCD Display with frequency display and channel display. Dual analog meters:

One for TX-Power/S-Meter. One for Modulation/SWR. Front controls are:

Power & Volume Squelch RF-Gain Mic-Gain Clarifier Channel

SWR Cal

Meter Function Cal-SWR-MOD Plus 8 multifunction buttons.

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Channel Modification:

Remove top cover.

Locate the back of the display board.

On this board you should see two pin's, Connect a jumper wire between the pins. Power on the Unit holding down the #1 button.

Remember to hold the button down for about 5 seconds after power is applied.

To change bands just press button #1 and the bands are labeled A,B,C,D,E is missing and is the CB band,

F,G,H,I and J. (Coverage from 25.165-29.665 Mhz).

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Modulation Modification:

The known variable adjustments are: VR4 AM carrier

VR14 ALC ssb Modulation Limiter:

Remove small transistor under wx board next to diode D24.

Set AM Carrier to 4 Watts No More. Modulation will be better than 100%. SSB output should be 12 Watts PEP or better.

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Thanks to "Smiley" for these two

5K shift modification plus FM Receive, but no FM Transmit.

Solder SJ2 Jumper pads located just left of the channel modification jumper.

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