Q-MAC Electronics Pty Ltd HF90 Manuale Utente

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HF-90 Operation & Installation Guide 
If the Selcall Alarm is not cancelled the audible alarm will 
time-out after sixty seconds.  However, the display will 
continue to show that a call has been received by flashing the 
Selcall ID of the calling station, until the PTT switch is 
pressed.  This provides a call recording facility for when the 
radio is unattended.  However, if another call is received 
before the radio operator returns, the new call will be 
recorded and the previous call will be overwritten. 
 
If you leave your radio unattended and then return to find that 
someone has sent you a Selcall, you will know immediately 
who has called you by looking at the flashing Selcall ID on 
your display.  To return their call simply press the STAR key 
twice.  This will initiate the Selcall Resend function. 
 
Please note that, if you are using the HF-90 in conjunction with the 
TA-90 autotune system, you may hear a continuous high pitched 
tone for a few seconds, having received a valid Selcall, prior to the 
transmission of the Selcall Confirmation.  This is the TA-90 Tuner 
entering its tune sequence (refer to Section 7.1 of this Guide). 
Special Note: 
Using the TA-90 
autotune system 
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Section 6.1