Vertex Standard VX-177 manual CTCSS/DCS/EPCS Operation, Ctcss Operation

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CTCSS/DCS/EPCS OPERATION

CTCSS OPERATION

Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater. This helps prevent false activation of the repeater by radar or spurious signals from other transmitters. This tone system, called “CTCSS” (Continuous Tone Coded Squelch System), is included in your VX-177, and is very easy to activate.

CTCSS setup involves two actions: setting the Tone Mode and then setting of the Tone Frequency. These actions are set up by using the [1(SQ TYP)] key and [2(CODE)] keys.

1.Press the [F] key, then press the [1(SQ TYP)] key to enable selection of the CTCSS/ DCS/ECS mode.

2.Rotate the DIAL knob so that “TONE” indication appears on the

display; this activates the CTCSS Encoder, for access to repeat- ers requiring a CTCSS tone.

3. Rotation of the DIAL knob one more “click” in step “2” above

will cause the “TSQL” notation to appear. When “TSQL” is dis- played, this means that the Tone SQueLch system is active, which mutes your VX-177’s receiver until it receives a call from an-

other radio sending out a matching CTCSS tone. This can help keep your radio quiet until a specific call is received, which may be helpful while operating in congested areas of the band.

1)You may notice a “REV TN” indication on the display while you rotate the DIAL knob in this step; this means that the Reverse Tone Squelch system is active, which mutes your VX-177’s receiver (instead of opening

the squelch) when it receives a call from the radio sending a matched CTCSS tone. The “” icon will blink on the display when the Reverse Tone Squelch system is activated.

2) You may notice the “DCS” and “ECS” indications on the display while you rotate the DIAL knob still more. We’ll discuss the Digital Code Squelch system (for “DCS”) and Enhanced Paging & Code Squelch (for “ECS”) later.

4.When you have made your selection of the CTCSS tone mode, press the PTT switch

to save the new setting.

5.Press the [F] key, then press the [2(CODE)] key to

enable adjustment of the CTCSS fre- quency.

6.Rotate the DIAL knob until the display indicates the Tone Frequency you need to

CTCSS TONE FREQUENCY (Hz)

67.0

69.3

71.9

74.4

77.0

79.7

82.5

85.4

88.5

91.5

94.8

97.4

100.0

103.5

107.2

110.9

114.8

118.8

123.0

127.3

131.8

136.5

141.3

146.2

151.4

156.7

159.8

162.2

165.5

167.9

171.3

173.8

177.3

179.9

183.5

186.2

189.9

192.8

196.6

199.5

203.5

206.5

210.7

218.1

225.7

229.1

233.6

241.8

250.3

254.1

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VX-177 OPERATING MANUAL

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Contents
Yaesu Europe B.V Vertex StandardContents General Description Supplied Accessories Accessories & OptionsAvailable Options Controls & Connectors TOP & Front Panels Controls & Connectors LCD PTT Push To Talk Switch Controls & Connectors Side PanelMoni Switch Press F + KEY Controls & Connectors Keypad FunctionsOne step or moves the memory Antenna Installation Installation of AccessoriesInstallation of FNB-83 Battery Pack LOW Battery Indication Battery ChargingInstallation of FBA-25A Alkaline Battery Case Option Belt Clip InstallationInterface of Packet Tncs Adjusting the Audio Volume Level Switching Power on and OFFOperation Squelch Adjustment Tuning DialFrequency Navigation Scanning Direct Keypad Frequency EntryTransmission Changing the Transmitter Power LevelKeyboard Locking Advanced OperationDisabling the Keypad Beeper KEYPAD/LCD IlluminationRF Squelch Checking the Battery VoltageRepeater Shifts Repeater OperationAutomatic Repeater Shift ARS Manual Repeater Shift Activation Changing the Default Repeater ShiftsChecking the Repeater Uplink Input Frequency VFO Split ModeRepeater Operation Ctcss Operation CTCSS/DCS/EPCS OperationDCS Operation Tone Search Scanning Epcs Enhanced Paging & Code Squelch Storing the Ctcss Tone Pairs for Epcs OperationActivating the Enhanced Paging & Code Squelch System CTCSS/DCS/EPCS Bell OperationTone Calling 1750 HZ Split Tone OperationStoring Independent Transmit Frequencies Odd Splits Memory ModeMemory Storage Home Channel Memory Memory RecallLabeling Memories Deleting Memories Memory Offset TuningMemory Bank Recall Assigning Memories to a Memory BankRemoving Memories from a Memory Bank Memory Bank OperationMoving Memory Data to the VFO Memory only ModeVX-177 Operating Manual Scanning Setting the Scan-Resume TechniqueProgrammed VFO Scan Manual VFO ScanVFO Scanning Memory Scanning How to Skip Omit a Channel during Memory Scan OperationPreferential Memory Scan Memory Bank Scan Programmable Band Limit Memory Scan PMS Memory Channel Priority VFO PriorityHome Channel Priority Priority Channel Scanning Dual WatchVFO-VFO Dual Watch Priority Revert ModeBand Edge Beeper Automatic Lamp Illumination on Scan StopVX-177 Operating Manual Emergency Channel Operation Emergency FeatureEmergency Automatic ID EAI Feature Emergency Feature Smart Search Operation Setting the Smart Search ModeStoring Smart Search Memories Internet Connection Feature Internet Connection Feature Basic Arts Setup and Operation Arts Alert Beep Options Arts Polling Time OptionsCW Identifier Setup Manual Dtmf Tone Generation Dtmf OperationDtmf Autodialer To send the telephone number Storing the 3-digit code for the Dtmf Pager Operation Dtmf Pager Operation Requires Optional FTD-7Activating the Dtmf Pager Storing the ANI code Activating the ANI featurePassword Miscellaneous SettingsChanging the Channel Steps Programming the KEY AssignmentsTX Battery Saver Receive Battery Saver SetupAutomatic POWER-OFF APO Feature Disabling the TX/BUSY IndicatorBusy Channel LOCK-OUT Bclo Transmitter TIME-OUT Timer TOTDCS Code Inversion Changing the TX Deviation Level Reset Procedures Try again CloningVX-177 Operating Manual ARS SET Menu ModeNET CTCSS/DSC/DTMF/EPCS Setting ANI Set Mode Item 2 AR BEP Set Mode Item 1 APOSet Mode Item 3 AR INT Set Mode Item 4 ARSSet Mode Item 9 CLK.SFT Set Mode Item 8 BSY.LEDSet Mode Item 10 Cwid Set Mode Item 11 CW WRTSet Mode Item 18 ECS.CDR Set Mode Item 17 DT WRTSet Mode Item 19 ECS.CDT Set Mode Item 20 EDG.BEPSet Mode Item 23 INT CD Set Mode Item 22 I NETSet Mode Item 24 INT MR Set Mode Item 25 LampSet Mode Item 28 Name Set Mode Item 27 M/T-CLSet Mode Item 29 NM WRT Set Mode Item 30 PswdSet Mode Item 34 RF SQL Set Mode Item 33 REV/HMSet Mode Item 35 RPT.MOD Set Mode Item 36 PRI.RVTSet Mode Item 40 SCN.LMP Set Mode Item 39 SCN MDSet Mode Item 41 Shift Set Mode Item 42 SkipSet Mode Item 45 Step Set Mode Item 44 SQL.TYPSet Mode Item 46 TN FRQ Set Mode Item 47 TOTSet Mode Item 52 EAI Set Mode Item 51 WID.NARSet Mode Item 53 ANI Set Mode Item 54 ANI.WRTGeneral SpecificationsInstallation of the FTD-7 Dtmf Paging Unit Option Declaration by Manufacturer 0511X-0K
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