Ae 5890 Controls; Knob And Selector; On, Volume And Squelch Setting; Channel/Frequency Display And Frequency Steps - Albrecht AE 5890 EU Handbuch

AE 5890 Controls

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Knob and Selector

On, Volume and Squelch Setting

Switch the device on or off with the On/Off switch, which is combined with the volume knob (1). Set the volume to
medium and set the squelch button (13) all the way to the left until the background noise can be heard.
Set the squelch, so that the noise is just not audible. In this position the squelch opens even for weak signals and
is in the most sensitive position.
When opening the squelch beyond this point to the right (clockwise), the signals must be stronger to come through.

Channel/Frequency Display and Frequency Steps

At first the device starts in FM mode and the frequency, e.g. 27.065 MHz and on the right channel number 9 is
displayed on the LCD. The device starts in normal CB mode. Only with a valid radio amateur license you have the
right, after opening the casing, to extend your device with jumpers to amateur radio mode. Please read our
separate publication under "Amateur Radio" on our download server www.hobbyradio.de.
One tip in this context: Not all functions and displays of the device are available in normal CB mode, e.g.:
Step Button (4)
The channel spacing in the CB range corresponds with the usual standard of the international 10kHz spacing,
where (for historical reasons) some channels are spaced 20kHz instead of 10kHz. You can change the frequencies
with the TUNING knob (12) on the device or with the UP/DOWN buttons on the microphone by 1 channel. When
using the STEP button (4) you can change the displayed frequency also in 500Hz steps and allow finer tuning.
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Example: channel 1, 26.965MHz
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Press the Step button
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Now you can tune with the Tuning button (12) between 26.9600 MHz and 26.9695 MHz.
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You also have the Clarifier (10) for further fine tuning.
According to regulations for CB radio the transmission frequency is not to be moved, consequently the detuning
steps with the Step button only work for reception.
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When pressing the push-to-talk button the device immediately changes back to the corresponding channel.
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When releasing the push-to-talk button the previously used receiving frequency (incl. Step) is show again.
This switching is very useful for SSB, when the received station is not exactly on the channel.
In amateur radio mode these steps are also available for transmission.
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