Vertex Standard VXA-700 DCS Operation

ADVANCED OPERATION (AMATEUR RADIO BAND)

DCS Operation

Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more advanced tone system which generally provides more immunity from false paging than does CTCSS. The DCS Encoder/Decoder is built into your VXA-700, and operation is very similar to that just described for CTCSS. Your repeater system may be configured for DCS; if not, it is frequently quite useful in Simplex operation if your friend(s) use transceivers equipped with this advanced feature.

Note: Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCS and that you select a “tone” Code.

rPress and hold the key for 2 seconds. This instantly recalls Menu Item (SQL Type).

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

rRotate the DIAL selector knob until “DCS” appears on the display; this activates the DCS Encoder/De- coder.

rPress the key momentarily, then rotate the DIAL selector knob two clicks clockwise to select Menu Item (DCS Set).

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

rRotate the DIAL selector knob until the desired DCS Code (a three-digit number). Ask the repeater owner/ operator if you don’t know DCS Code; if you are working simplex, just set up the DCS Code to be the same as that used by your friend(s).

rWhen you have made your selection, press the key to save the new setting, then press the PTT key repetitively until the radio exits to normal operation.

Note: Remember that the DCS is an Encode/Decode sys- tem, so your receiver will remain muted until a matching DCS code is received on an incoming transmission. Switch the DCS off when you’re just tuning around the band!

DCS CODE

023	025	026	031	032	036	043	047	051	053
054	065	071	072	073	074	114	115	116	122
125	131	132	134	143	145	152	155	156	162
165	172	174	205	212	223	225	226	243	244
245	246	250	251	252	255	261	263	265	266
271	274	306	311	315	325	331	332	343	346
351	356	364	365	371	411	412	413	423	431
432	435	445	446	452	454	455	462	464	465
466	503	506	516	523	526	532	546	565	606
612	624	627	631	632	654	662	664	703	712
723	731	732	734	743	754	–	–	–	–

VXA-700 SPIRIT OPERATING MANUAL

39