Scanner Setup

Connecting Headphones

For private listening, you can plug a mono earphone or headset into the Headphone Jack on the back of your scanner. This automatically disconnects the internal speaker. Note that the sound is not in stereo.

Listening Safely

To protect your hearing, follow these earphone or headphones guidelines:

Do not listen at extremely high volume levels. Extended high- volume listening can lead to permanent hearing loss.

Set the volume to the lowest setting before listening. Turn on the scanner, and adjust the volume to a comfortable level.

After you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.

Headphone Jack

Alert Out Jack

Connecting the External Alert Out

To provide additional alerting options for the weather alert, connect a switch-closure activated device such as a strobe or siren controller (not supplied). The devise can be up to 200mA, AC/DC 20V and must have a 3.5mm mono plug cable. Plug the device into the Alert Out Jack on the back of your scnner.

Understanding Your Scanner

We use a few simple terms in this manual to explain the features of the scanner. Familiarize yourself with these terms and the scanner’s features, and you can put the scanner to work for you right away.

The scanner scans conventional frequencies. A frequency, expressed in MHz, is the tuning location of a station. To find active frequencies, use the search function or consult an online resource such as www.radioreference. com.

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Radio Shack 20-136 PRO-136 quick start Connecting Headphones, Connecting the External Alert Out, Understanding Your Scanner