ADVANCED OPERATION (AMATEUR RADIO BAND)

Checking the Repeater Uplink (Input) Frequency

It often is helpful to be able to check the uplink (input) frequency of a repeater, to see if the calling station is within direct (“Simplex”) range.

To do this, just press and hold the key for 2 seconds. You’ll notice that the display has shifted to the repeater

uplink frequency. Press the key again to cause operation to revert to normal monitoring of the repeater downlink (output) frequency.

CTCSS Operation

Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater. This helps prevent false activation of the repeater by radar or spurious signals from other trans- mitters. This tone system, called “CTCSS” (Continuous Tone Coded Squelch System), is included in your VXA- 700, and is very easy to activate.

The CTCSS setup involves two actions: setting the Tone Mode and then setting of the Tone Frequency. These ac-

tions are set up by using the and keys, or Menu Items (SQL Type) and (TONE Set).

rPress and hold the key for 3 seconds. This instantly recalls Menu Item (SQL Type).

rPress the key again to enable adjustment of this Menu Item.

rRotate the DIAL selector knob so that “T” appears at the bottom right corner on the display; this activates the CTCSS Encoder, which allows repeater access.

Note: You may notice an additional “DCS” icon ap- pearing while you rotate the DIAL selector knob in this step. We’ll discuss the Digital Code Squelch sys- tem shortly.

rRotating the DIAL selector knob in above step will

VXA-700 SPIRIT OPERATING MANUAL

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