Tone search (Display and Tone)

Tone search allows you to locate a radio source using a tone. Based on a defined frequency the signal strength is reflected by the pitch of the tone:

      High pitch = stronger signal

      Lower pitch = weaker signal

The basic pitch can be adjusted to allow a comfortable listening experience.

Step 1 – Setting up a task

1.   Connect the antenna handle with an appropriate antenna to the SignalShark.

2.   Add a RT Spectrum task (if not already available) and add a Level Meter view to the task (see Using Tasks and Views). A Spectrum view is added by default.

Step 2 – Setting up measurement parameters

1.   Tap the Level Meter view to select it.

2.   In the Main menu set Ftune to your needs.
To simplify use, you may couple Fcent of the Spectrum view and Ftune of the Level Meter view:

a.   In the Button bar long tap the Ftune button.

b.   Tap the Fcent <–> Ftune button to set it to On.

3.   Set CBW according to your signal (see Setting the channel / EMC bandwidth).

Step 3 – Enabling and setting up tone search

1.   In the Display and Tone menu tap the Tone button to set it to On.

2.   Tap the Tone Gain button and select Octave per 30 dB from the dropdown list.

This is for rough detection of the PIM source.

3.   Tap the Tone Reference button and change the value using the Rotary knob, until the resulting tone pitch is most comfortable.

Leaf this dialog open for easy, continuous adjustment during operation.

Step 4 – Fine adjust the search

1.   Tap the Tone Gain button and select Octave per 20 dB or Octave per 10 dB from the dropdown list.

This is for fine detection of the PIM source. The tone pitch to signal level ratio will be more agile and precise.

2.   Tap the Tone Reference button and change the value using the Rotary knob, until the resulting tone pitch is most comfortable.

Leaf this dialog open for easy, continuous adjustment during operation.