E F Johnson Company 2425795 사용자 설명서

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Viking™ VP600 Portable Radio Operating Manual

- Power Low - Select Low transmit power.

- Power Switch - Switchable power selectable by the High/Low power button. This 

choice is not available if that button is not programmed.

Tx Code - Programs the transmit Call Guard (CTCSS/DCS) code. The currently 
selected code and is initially displayed. Press the Up/Down buttons to select the desired 
code type (CTCSS analog or DCS digital). Then press 

 (Menu) to select it and enter 

the code number similar to programming a channel frequency.

Rx Code - Selects the receive codes the same as Tx Code above.

TX NAC - Programs the transmit Network Access Code (NAC) which can be any 
number in hexadecimal from 000-FFF. The procedure is similar to programming a TX 
FREQ just described. If an invalid code is entered, a beep sounds, “Invalid” is briefly 
displayed, and the code must be re-entered.

RX NAC - Selects the receive NAC the same as RX NAC above.

Transmit Type (P25 Mixed Mode Only) - If the selected channel is a mixed mode, 
analog and P25 channel, this selects the transmit type. Either Analog or Digital (P25) 
can be selected. This then determines if a Tx Code or Tx NAC is programmed above.

If enabled, portable radios have full two-way text messaging capability (digital 
conventional mode only).

A portable radio can send a text message to another radio on a digital conventional channel 
regardless of whether the channel uses a repeater.

The radio’s text message menu contains the item “Set R to R”. The default for this setting 
is enabled, in which the following capabilities are operable: