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TB9100 Calibration Software User’s Manual Adjusting the Frequency Setup 13

Adjusting the Exciter Lock Band

If you are preparing the base station for operation, adjusting the exciter lock

band is the third step in tuning the reciter. Alternatively, this procedure can be

performed independently of the other two calibration wizards on the

Frequency Setup tab. Adjusting the exciter lock band defines the range of

frequencies that the base station is able to transmit on.

Note: When performing this procedure, you don’t need to

terminate the exciter output port. An internal output pad means that

there is a good impedance match at this interface.

To calibrate the exciter lock band

1. Set up the equipment and connect the Calibration Software to the reciter.

2. Select the Frequency Setup tab, and double-click Set Exciter VCO. The

Set Exciter VCO Wizard appears.

3. Enter the center frequency (which must be a multiple of 500 kHz) of the

lock band that you want to use, and click Next.

4. Insert the Murata tuning tool into the correct exciter VCO tuning hole (see

below) and adjust the trimmer until the actual band matches the desired

band. The bands turn green. Click Finish.

Once you have finished adjusting the exciter lock band, the icon on the

Frequency Setup tab indicates that this task is complete.

Trimmer holes for receiver

front-end tuning

(B band 136–174 MHz)

Exciter VCO tuning hole

for H band

(380–520 MHz)

Exciter VCO tunin

hole for B band

(136–174 MHz)

Tait TB9100 User Manual

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