C. Crane CC Radio 2 instruction manual Meter HAM VHF Band 144 to 148 MHZ, Setting the Squelch

Radio Operation

2-METER HAM (VHF) BAND (144 TO 148 MHZ)

The 2-Meter Ham Band is a popular radio band used by amateur radio operators for civil defense. After a hurricane, earthquake or other calamity, 90% of emergency coordination at the local level takes place on this band. Listening to this band during an emergency can be extremely valuable and even life saving. For most people, the CCRadio2 will probably be their first experience with Ham radio.

We have preprogrammed some of the most popular frequencies into the five memories of the CCRadio2. Different frequencies may be active at your location, other than those preprogrammed into the memories. The following are the frequencies and memory locations as they were origi- nally preprogrammed:

1) 146.520

2) 146.760

3) 146.880

4) 146.940

5) 147.000

You can program your frequencies of interest into a memory location at any time.

To scan the five memory channels when in 2-Meter Ham, momentarily press both of the Up and Down Tuning Buttons at once, the radio will scan the memories and automatically

stop when it detects a voice transmission. Raise the telescopic antenna up fully in a vertical position. It is best to set the squelch level prior to scanning the memory stations. See “Setting the Squelch” below.

SETTING THE SQUELCH

Background noise or static is present to some degree at every location and on every frequency of the 2-Meter Ham Band. This is a normal con- dition. If you set the squelch above the background noise level, the radio will remain silent until a voice transmission is detected. It is best to set the squelch as low as possible (to just before static is constant). This way you can hear signals that may be weak. If you set the squelch too high, you may miss some weak voice transmissions.

To adjust the squelch level, press and hold the main Tuning Knob in for one second until the display changes. Turn the Tuning Knob slowly clockwise from OFF

through 12 (increasing squelch) until the radio just becomes silent. NOTE: Squelch operates on the 2-Meter Ham Band only.

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