Cobra Electronics 200GTL DX 4High Power, 4SWR / S/RF, 4Dim / SWR CAL, 4Echo, 4R Beep, 4Clarifier

Controls

Your Mobile Radio

Controls	•
- -
4High Power
Places the transmitter in high power (30 watts) mode when the button is pressed to
the in position and in low power (4 watts) mode when the button is in the out position.
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4SWR / S/RF

When this button is in the S/RF (out) position, the display meter swings proportionately to the strength of the signal received or the output power being transmitted.

When the button is in the SWR (in) position, the standing wave ratio is measured on the display meter.

- -4Dim / SWR CAL

Adjusts the NightWatch™ panel and meter brightness in steps from min. to max. when this button is pressed and released repeatedly. The antenna warning LED is not affected by this control.

To place this control in the CAL position, press and hold the button. The SWR function can then be calibrated on the display meter by adjusting the SWR CAL control to move the needle to the calibration mark on the display meter face.

- -4SWR CAL

This control is used in conjunction with the DIM / SWR CAL button to calibrate the standing wave ratio circuit to full scale on the display meter in preparation for measuring the standing wave ratio that the antenna is presenting to the transceiver.

The standing wave ratio can be checked to insure that maximum power is being radiated for the longest signal range. The antenna must be in good condition, properly adjusted and matched to your transceiver. The SWR function of the display meter lets you easily measure your antenna condition. To operate this function, select a frequency near the middle of the range such as 28.850 MHz or the one you plan to use most. With the power on, press and hold the DIM / SWR CAL button. Press and hold the microphone Press-To-Talk button and, using the SWR CAL knob, adjust the meter

to the CAL position indicated on the display meter. Then, release the microphone and DIM / SWR CAL buttons. Press the SWR / S/RF to the in position and again press and hold the microphone Press-To-Talk button and read the SWR indicated. Lower figures are the better, with 1 being ideal. Generally, readings up to 3 are acceptable, but a reading greater than 3 indicates that you are losing radiated power and antenna adjustment may be advisable. When finished, return the SWR control to the minimum position.

10 English

Controls

Your Mobile Radio

Controls	•
- -
4NB / ANL
When this button is in the ANL (in) position, only the automatic noise limiter in
the audio circuits is activated. When the button is in the NB/ANL (out) position,
the RF noise blanker also is activated. The RF noise blanker is very effective for
repetitive impulse noise such as ignition interference.
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4Echo
This control is used to adjust the output level of the echo circuit. It is also
detented at the fully counter clockwise position to turn off the echo circuit.
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4R Beep
When this button is pressed to the in position, the radio will insert a tone
(Roger beep) to indicate the end of each transmission as the Press-To-Talk
button on the microphone is released.
When the button is in the out position, the tone function will be off.
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4Clarifier
The clarifier function is used to make small adjustments in frequency
when using the radio in single sideband mode (USB or LSB). Thereby,
the receiver can be matched to the signal being received for the best
voice clarity at the speaker.
The outer ring makes coarser and the inner knob finer adjustments.
Both controls increase frequency when turned clockwise and decrease
it when turned counter-clockwise.

Nothing comes close to a Cobra® 11