Setup Information
104
The Monitor Relay field provides the IP-223 the ability to decode a valid Ethernet packet and provide a relay contact output
to turn off the sub-audible-tone-decoder circuit in the radio receiver. This allows the console operator to monitor the line for
other users before transmission. This is required by FCC regulations on stations equipped with CTCSS.
Available selections for this field are:
Reset with PTT - The monitor relay is activated from the time the monitor tone sequence is received until the next PTT
operation.
On except PTT - The monitor relay is activated at all times except when PTT is active, whether the monitor function
tone is received or not.
Timed - The monitor relay is activated for the amount of time, in ms, entered.
If an Options field cannot be selected, the particular option is not available for the line number the details apply to.
Supervisor Check Box
The Supervisor check box is selectable only in tone and console modes. For more information, see Figure “Supervisor Check
Box - Tone and Console Modes” on page 73.
Cross Mute Check Box
The Cross Mute check box is selectable only in tone and console modes. For more information, see “Cross Mute Check Box
- Tone and Console Modes” on page 73.
Full Duplex Check Box
The Full Duplex check box indicates full-duplex Ethernet is supported. If selected, full-duplex (TX and RX transmission)
audio packets are allowed.
RxAGC Check Box
The RxAGC check box indicates whether or not the radio RX audio includes an AGC. If selected, an AGC step is added to the
radio RX audio. This results in the transmission of a more consistent radio RX audio by increasing the level of low audio and
decreasing the level of loud audio.
Hi-Pass RX Check Box
The Hi-Pass RX check box indicates RX audio below 300Hz is blocked. If selected, RX audio below 300Hz is blocked.
Pre-Emphasize TX Check Box
The Pre-Emphasize TX check box indicates whether or not TX audio includes a standard 6dB octave pre-emphasis. If
selected, a standard 6dB octave pre-emphasis is included in the TX audio.
TX Monitor Check Box
The TX Monitor check box is selectable only in tone mode. For more information, see “TX Monitor Check Box - Tone
Mode” on page 74.
Monitor Relay
Options
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