Furuno RC-1500-1T - Manual (Page 35)

1-5
1.4 Remote Control and Automatic Acknowledge
1.4.1 Remote control
The DSC-60 and a FURUNO SSB radiotelephone communicate with each other by means of the
MIF (FURUNO Radio Interface) protocol, a unique handshaking type signal exchange system
developed by FURUNO. The DSC-60 can also communicate with other makes of
radiotelephones which incorporate data format IEC-61162-1. The remote control feature allows
the DSC-60 to automatically set the DSC and working frequencies and class of emission on a
FURUNO SSB radiotelephone.
1.4.2 Automatic acknowledge
The automatic acknowledge feature, when turned on, automatically transmits the acknowledge
back signal to the sender when an individual, position or polling call is received. With the
automatic acknowledge feature turned on the remote control is also turned on.
Automatic acknowledge is alternately enabled or disabled with the [5/ACK] key.
1.4.3 Both remote control and automatic acknowledge ON
The illustration and table below outline the sequence of events in an individual call when both
remote control and automatic acknowledge are turned on.
FS-1562*
Q
DSC-60
Q
FS-1562*
R
DSC-60
R
TX
ACK BQ
AUTO ACK (own ship) AUTO ACK (other station)
* FURUNO SSB radiotelphone
DSC operation Radiotelephone frequency c c c c Radiotelephone frequencyd d d d
1. DSC-60c [CALL] key
pressed. DSC frequency changed; call
sent. Scans DSC frequencies.
2. DSC-60d receives via
radiotelephone. Sets DSC frequency received.
3. DSC-60d automatically
sends acknowledge back
(ACK BQ) signal. DSC frequency set; ACK BQ sent.
Then, working frequency and
class of emission specified at
DSC-60c are set.
4. DSC-60c receives
acknowledge back signal
via radiotelephone. Working frequency and class of
emission specified at DSC-60c
are set.
Both communication frequency and class of emission are already set on the FS-1562 c and
FS-1562d, so you may begin communications.