Yaesu VX-170 Programming Steps 1. To LOCK the dial, Press the 6 Key and hold it for 1 second 2. To program, press the VFO key # second from right bottom row A or B will appear 3. Enter digits from keypad beginning with second digit (First 1 is assumed) 4. Set transmit power by pushing F key momentarily then push 3 Low key and turn knob to desired level which is read on LCD screen. Press PTT key briefly to exit Function mode. 5. Set Offset by pushing F then 4 RPT key and rotate bottom dial to +, - or off for simplex 6. Set PL Tone by pushing F key then 2 TONE key and rotate bottom dial to desired frequency 7. While in VFO mode after programming PL, Shift, Power, press and Hold F key for 1-2 seconds until memory number blinks. 8. Rotate bottom dial until desired memory location reached, then hold in F key memory in appears with beep. 9. Press PTT key briefly which returns radio to VFO mode. 10. To access menus momentarily press F key followed by momentarily 0 SET key; rotate knob to desired menu then momentarily to see values, rotate knob to change value, press F key momentarily and then push PTT key to return exit Function mode. 11. Press and Hold 1 key to toggle between Weather channels and other channels. 12. To move memory data to VFO, select memory location , press MR key momentarily then press and hold VFO key to save memory data to VFO.

VX-170 OPERATING MANUAL

ACCESSORIES & OPTIONS

SUPPLIED ACCESSORIES

FNB-83 7.2 V, 1,400 mAh Rechargeable Nickel-Metal Hydride Battery Pack NC-88B Overnight Battery Charger (10-Hour) YHA-68 Antenna Quick Draw Belt Clip Operating Manual Warranty Card

AVAILABLE OPTIONS

FNB-83 NC-88B/C/U VAC-370 CD-26 FBA-25A CN-3 CT-91 E-DC-5B E-DC-6 MH-57A4B CMP460A VC-27 VC-24 FTD-7 7.2 V, 1,400 mAh Rechargeable Nickel-Metal Hydride Battery Pack Overnight Battery Charger (10-Hour) Desktop Rapid Charger Charger Cradle Dry Cell Battery Case for 6 AA Alkaline Cells (not supplied) BNC-to-SMA Adapter Microphone Adapter DC Cable with Cigarette-Lighter Adapter DC Cable; plug and wire only Speaker/Microphone Waterproof Speaker/Microphone Earpiece/Microphone VOX Headset DTMF Paging Unit
: B suffix is for use with 100-120 VAC, C suffix is for use with 230-240 VAC, and U suffix is for use with 230 VAC. Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable in some regions. This product is designed to perform optimally when used with genuine Vertex Standard accessories. Vertex Standard shall not be liable for any damage to this product and/or accidents such as fire, leakage or explosion of a battery pack, etc., caused by the malfunction of non- Vertex Standard accessories. Consult your Vertex Standard dealer for details regarding these and any newly-available options. Connection of any non-Vertex Standard-approved accessory, should it cause damage, may void the Limited Warranty on this apparatus.
CONTROLS & CONNECTORS (TOP & FRONT PANELS)

Antenna Jack

Connect the supplied rubber flex antenna (or another antenna presenting a 50-Ohm impedance) here.

MIC/SP Jack

This four-conductor miniature jack provides connection points for microphone audio, earphone audio, PTT, and ground. Do not allow the VX-170 to become submerged in water while the plastic cover over the MIC/SP jack is removed.

VOL/PWR Knob

Turn this control clockwise to turn the radio on and to increase the volume. Counterclockwise rotation into the click-stop will turn the radio off.

DIAL Knob

This (inner) 20-position detented rotary switch is used for setting the operating frequency, and also is used for menu selections and other adjustments.

Speaker

The internal speaker is located here.
LCD (Liquid Crystal Display)
The display shows the current operating conditions, as described on the next page.

Keypad

These 16 keys select many of most important operating features on the VX-170. The functions of the keys are described in detail on the pages to follow.

TX/BUSY Indicator Lamp

This indicator glows green when the squelch opens, and turns red during transmit.

The internal microphone is located here.
CONTROLS & CONNECTORS (LCD)
Memory Channel Number Skip Memory Channel or Preferential Memory Channel Repeater Shift Direction CTCSS/DSC Operation Internet Connection Feature Active Bell Alerm Active Operating Frequency Battery Indicator S- & PO Meter Key Lock Active Automatic Power-Off Active Battery Saver Active
Priority Channel Memory Bank Active Secondary Keypad Active Low TX Power Selected DTMF Autodiale Active Dual Watch Active
CONTROLS & CONNECTORS (SIDE PANEL)
PTT (Push To Talk) Switch
Press this switch to transmit, and release it (to receive) after your transmission is completed.

MONI Switch

Pressing this switch disables the noise squelching action, allowing you to hear very weak signals near the background noise level temporarily. Press the [F] key on the keypad first, then press this switch to enable to adjustment of the squelch threshold level.

EXT DC Jack

This coaxial DC jack allows connection to an external DC power source (6-16V DC). The center pin of this jack is the Positive (+) connection. Do not allow the VX-170 to become submerged in water while the rubber cap over the EXT DC jack is removed.
CONTROLS & CONNECTORS (KEYPAD FUNCTIONS)
Primary Function (PRESS KEY) Secondary Function (PRESS [F] + KEY) Third Function (PRESS & HOLD KEY)

Frequency entry digit 1.

Frequency entry digit 2.
Activates the CTCSS or DCS Operation. Toggles the Weather broadcast channel memory bank on/off.
Selects the CTCSS tone or DCS code number.
Activates the ARTS feature.

Frequency entry digit 4.

Frequency entry digit 5.
Selects the direction of the uplink Selects the CTCSS/DCS Bell ringer frequency shift (either , +, or repetitions. simplex) during repeater operation. Activates the EMERGENCY function. 1 None 1

Frequency entry digit 7.

Frequency entry digit 8.
Selects the Scan Resume Mode.
Selects the LCD/Keypad Lamp Mode.
Sets the frequency control to the Memory Recall mode. Activates the Memory Tune mode while in the Memory Recall mode. Selects the Memory Scan Skip channel-selection mode. Starts the programmable scanner upward (toward a higher frequency or a higher channel number)

OPERATION

Hi! Im R. F. Radio, and Ill be helping you along as you learn the many features of the VX-170. I know youre anxious to get on the air, but I encourage you to read the Operation section of this manual as thoroughly as possible, so youll get the most out of this fantastic new transceiver. Now.lets get operating!
SWITCHING POWER ON AND OFF
Be sure the Battery Pack is installed, and that the battery is fully charged. Connect the antenna to the top panel ANTENNA jack. Rotate the top panels VOL/PWR knob (inner knob) out of the click-stop to turn on the radio. The current DC supply voltage will be indicated on the display for 2 seconds. After this 2 second interval, the display will resume its normal indication of the operating frequency. To turn the radio off, turn the VOL/PWR knob fully counter-clockwise into the click stop position.
ADJUSTING THE AUDIO VOLUME LEVEL
Rotate the VOL/PWR knob (inner knob) to adjust the receiver level for a comfortable listing level, using the background noise as a reference. Clockwise rotation increases the volume level.

SQUELCH ADJUSTMENT

To set the squelch, press the [F] key, followed by the MONI switch just below the PTT switch on the left side of the transceiver. Now rotate the DIAL (outer knob) to find the lowest setting (LVL 1 through LVL 15) that will just silence the background noise. Do not use a higher setting than necessary, or sensitivity to weak incoming signals will be degraded. Press the PTT switch momentarily when youve made the new setting; this will return you to normal operation (without having transmitted). 1) A special RF Squelch feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. See page 18 for details. 2) If youre operating in an area of high RF pollution, you may need to consider Tone Squelch operation using the built-in CTCSS Decoder. This feature will keep your radio quiet until a call is received from a station sending a carrier which contains a matching (subaudible) CTCSS tone. Or, if your friends have radios equipped with DCS (Digital Coded Squelch) like your VX-170 has, try using that mode for silent monitoring of busy channels.

FREQUENCY NAVIGATION

The VX-170 will initially be operating in the VFO mode, a channelized system which allows free tuning throughout the currently-selected operating band. Three basic frequency navigation methods are available on the VX-170:

LOW POWER

MID POWER
Changing the Transmitter Power Level
To change the power level: Press the [F] key, then press the [3(LOW)] key. The LCD shows the current power output level. Rotate the DIAL knob to select the desired power output level. Available selections are HIGH (5 W), MID (2 W), and LOW (0.5 W). When you have made your choice, press the PTT switch to save the new setting and return to normal operation.

HIGH POWER

1) The VX-170 is smart! When you store memories, you can store the power output settings separately in each memory, so you dont waste battery power when using very close-in repeaters! 2) When you are operating on the Low or Medium power setting, you can press the [F] key, then press the PTT switch, to cause the VX-170 to transmit (temporarily) on High power. After one transmission, the power level will revert to the previously-selected (Low or Medium power) setting.

ADVANCED OPERATION

Now that youre mastered the basics of VX-170 operation, lets learn more about some of the really neat features.

KEYBOARD LOCKING

In order to prevent accidental frequency change or inadvertent transmission, various aspects of the VX-170s DIAL and keypad may be locked out. The possible lockout combinations are:
LK KEY: Just the front panel keypad is locked out LKDIAL: Just the top panel DIAL is locked out LK K+D:Both the keypad and DIAL are locked out (factory default) LK PTT: The PTT switch is locked out (TX not possible) LK P+K: Both the PTT switch and keypad are locked out LK P+D: Both the PTT switch and DIAL are locked out LK ALL: All of the above are locked out
To lock out some or all of the keys: 1. Press the [F] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 26: LOCK. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to choose between one of the locking schemes as outlined above. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. To activate the locking feature, (1) press and hold in the [6(LOCK)] key for one second, or (2) press the [F ] key, followed by the [6(LOCK)] key. The icon will appear on the LCD. To cancel locking, repeat one of these processes.

9. If you need to modify the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just press the [VFO(PRI)] key, then make the necessary change, then press [VFO(PRI)] key once more to restore VFO-A to the receive VFO position. 10. When you have finished with Split operation, re-enter the Set mode, and change Set Mode Item 50: VFO.SPL to VSP.OFF. A split frequency pair set up via the VFO Split feature cannot be stored directly into memory. You can, however, store odd frequency pairs using a different (slightly simpler) procedure. See page 29.

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-170, 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 repeaters 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 displayed, this means that the Tone SQueLch system is active, which mutes your VX-170s receiver until it receives a call from another 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-170s 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. Well 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. CTCSS TONE FREQUENCY (Hz) 5. Press the [ F ] key, then press the 67.0 69.3 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 97.4 [2(CODE)] key to 100.0 103.5 107.2 110.9 114.8 118.8 enable adjustment 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 159.8 162.2 165.5 167.9 of the CTCSS fre171.3 173.8 177.3 179.9 183.5 186.2 quency. 189.9 192.8 196.6 199.5 203.5 206.5 6. Rotate the DIAL knob until the display 210.7 218.1 225.7 229.1 233.6 241.8 indicates the Tone Frequency you need to 250.3 254.1

CTCSS/DCS/EPCS BELL OPERATION
During CTCSS Decode, DCS, or EPCS operation, you may set up the VX-170 such that a ringing bell sound alerts you to the fact that a call is coming in. Here is the procedure for activating the CTCSS/DCS/EPCS Bell: 1. Set the transceiver up for CTCSS Decode (Tone Squelch), DCS, or EPCS operation, as described previously. 2. Adjust the operating frequency to the desired channel. 3. Press the [F] key, then press the [5(BELL)] key. 4. Rotate the DIAL knob to set the desired number of rings of the Bell. The available choices are 1 T, 3 T, 5 T, or 8 T rings, CONT (continuous ringing), or OFF. 5. Press the PTT switch momentarily to save the new setting and exit to normal operation. When you are called by a station whose transceiver is sending a CTCSS tone, DCS code, or CTCSS code pair which matches that set into your Decoder, the Bell will ring in accordance with this programming. When the CTCSS/ DCS/EPCS Bell is activated, the icon will appear at the upper right corner on the LCD.

SPLIT TONE OPERATION

The VX-170 can be operated in a Split Tone configuration via the Set mode. 1. Press the [F] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 43: SPLIT. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select ON (to enable the Split Tone feature). 5. Press the PTT switch momentarily to save the new setting and exit to normal operation. When the Split Tone feature is activated, you can see the following additional parameters following the DCS parameter (while selecting the tone mode by pressing [F ] [1(SQ TYP)]):
D: DCS Encode only (the icon will blink during operation) T DCS: Encodes a CTCSS Tone and Decodes a DCS code
(the icon will blink and the icon will appear during operation) D TSQL: Encodes a DCS code and Decodes a CTCSS Tone (the icon will appear and the icon will blink during operation) Select the desired operating mode from the selections shown above.

TONE CALLING (1750 HZ)

If the repeaters in your country require a 1750-Hz burst tone for access (typically in Europe), you can set the MONI key to serve as a Tone Call switch instead. To change the configuration of this switch, we again use the Set Mode to help us. 1. Press the [F] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 27: M/T-CL. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select T-CALL on the display. 5. Press the PTT switch to save the new setting and exit to normal operation. To access a repeater, press and hold in the MONI key for the amount of time specified by the repeater owner/operator. The transmitter will automatically be activated, and a 1750Hz audio tone will be superimposed on the carrier. Once access to the repeater has been gained, you may release the MONI key, and use the PTT switch for activating the transmitter thereafter.

MEMORY MODE

The VX-170 provides a wide variety of memory system resources. These include: 200 Standard memory channels, numbered 1 through 200. A Home channel, providing storage and quick recall of one prime frequency. 10 sets of band-edge memories, also known as Programmable Memory Scan channels, labeled L1/U1 through L10/U10. 10 Memory Banks, labeled BANK 1 through BANK10. Each Memory Bank can be assigned up to 200 channels from the standard memory channels. 10 Weather Broadcast Channels.

MEMORY STORAGE

1. Select the desired frequency, while operating in the VFO mode. Be sure to set up any desired CTCSS or DCS tones, as well as any desired repeater offset, now. The power level may also be set at this time, if you wish to store it. 2. Press and hold in the [F] key for one second. 3. Within ten seconds of releasing the [F] key, you need to make a decision regarding channel storage. The microprocessor will automatically select the next-available free channel (a memory register on which no data has been stored), so you may not wish to make any change; if this is the case, proceed to step 4. If you wish to select a different channel number into which to store the data, rotate the DIAL knob to select the desired memory channel. You may jump 10 memory channels, if youre in a hurry (31 ) by pressing the [VFO(PRI)] key (multiple times, if necessary). 4. Press the [F] key once more to store the frequency into memory. 5. You still will be operating in the VFO mode, so you may now enter other frequencies, and store them into additional memory locations, by repeating the above process.
Storing Independent Transmit Frequencies (Odd Splits)
All memories can store an independent transmit frequency, for operation on repeaters with non-standard shift. To do this: 1. Store the receive frequency using the method already described under MEMORY STORAGE (it doesnt matter if a repeater offset is active). 2. Tune to the desired transmit frequency, then press and hold in the [F] key for one second. 3. Within ten seconds of releasing the [F] key, rotate the DIAL knob to select the same memory channel number as used in step 1 above. 4. Press and hold in the PTT switch, then press the [F] key once more momentarily while holding the PTT switch in (this does not key the transmitter). Whenever you recall a memory which contains independently-stored transmit and receive frequencies, the indication will appear in the display.

MEMORY RECALL

MEMORY OFFSET TUNING

Once you have recalled a particular memory channel, you may easily tune off that channel, as though you were in the VFO mode. 1. With the VX-170 in the MR (Memory Recall) mode, select the desired memory channel. 2. Press the [MR(SKIP)] key momentarily to activate the Memory Tuning feature. The Memory Channel number will be replaced by tun. And if you have an alpha-numeric Tag displayed on the memory channel, the display will automatically revert to display of the operating frequency, so you can navigate without having to enter the Menu to change the display configuration. 3. Rotate the DIAL knob, as desired, to tune to a new frequency. The synthesizer steps selected for VFO operation on the current band will be the steps used during Memory Tuning. 4. If you wish to return to the original memory frequency, just press the [MR(SKIP)] key momentarily. The display will revert to display of the alpha-numeric Tag (if any) that may have originally appeared on the LCD. 5. If you wish to store a new frequency set during Memory Tuning, just press and hold in the [F] key for one second, per normal memory storage procedure. The microprocessor will automatically set itself to the next-available clear memory location, and you then press [F] again to lock in the new frequency. 1) If you want to replace the original memory contents with those of the new frequency, be sure to rotate the DIAL knob to the original memory channel number! 2) Any required CTCSS/DCS changes, or repeater offset modifications, must be done before storing the data into the new (or original) memory channel location.

DELETING MEMORIES

You may delete any of the memories (except for Memory Channel 1 and the Home Channel). The procedure for deleting a channel is quite simple. 1. Press the [VFO(PRI)] key, if needed, to enter the MR mode. 2. Press and hold in the [F] key for one second, then rotate the DIAL knob to select the memory channel to be deleted. 3. Press the [MR(SKIP)] key momentarily. The display will revert to memory channel #1. The previously-selected memory will be deleted. Important Notice! Once deleted, the channel data cannot be recovered!

MEMORY BANK OPERATION

The large number of memories available in the VX-170 could be difficult to utilize without some means of organizing them. Fortunately, the VX-170 includes provision for dividing the memories into as many as ten Memory Groups, so you can categorize the memories in a manner convenient to you.

MEMORY SCANNING

Memory scanning is similarly easy to initiate: 1. Select the Memory mode by pressing the [MR(SKIP)] key, if necessary. 2. Press and hold in either the [ (MHz)] or [ (MHz)] key for one second to initiate upward or downward scanning, respectively. 3. If and when the scanner encounters a signal strong enough to open the squelch, the scanner will halt temporarily; the decimal point of the frequency display will blink during this Pause condition. 4. The scanner will then resume according to the Scan-Resume mode selected in the previous section. 5. To cancel scanning, press the PTT switch or [MR(SKIP)] key.
How to Skip (Omit) a Channel during Memory Scan Operation
As mentioned previously, some continuous-carrier stations like a Weather Broadcast station will seriously impede scanner operation if you are using the Carrier Drop ScanResume mode, as the incoming signal will not pause long enough for the transceiver to resume scanning. Such channels may be Skipped during scanning, if you like: 1. Recall the Memory Channel to be skipped during scanning. 2. Press the [F] key, then press the [MR(SKIP)] key to enter the Skip channel-selection mode. 3. Rotate the DIAL knob so as to select SKIP. The current Memory Channel will now be ignored during scanning. The ONLY selection is used for Preferential Memory Scan, described in the next section. 4. When you have made your selection, press the PTT switch to save the setting and exit to normal operation. When you recall the skipped memory channel manually, a small icon will appear at the left of the memory channel number, indicating it is to be ignored during scanning. To re-institute a channel into the scanning loop, select OFF in step 3 above (the Skipped channel will, of course, still be accessible via manual channel selection methods using the DIAL knob in the MR mode, whether or not it is locked out of the scanning loop).

Preferential Memory Scan

The VX-170 also allows you to set up a Preferential Scan List of channels which you can flag within the memory system. These channels are designated by a blinking icon when you have selected them, one by one, for the Preferential Scan List. When you initiate memory scanning, beginning on a channel with the blinking icon appended, only those channels bearing the blinking u icon will be scanned. If you initiate scanning on a channel which does not have the blinking icon appended, you will scan all channels including those with the blinking icon appended. Here is the procedure for setting up and using the Preferential Scan List: 1. Recall the Memory Channel which you wish to add to the Preferential Scan List. 2. Press the [F] key, then press the [MR(SKIP)] key to enter the Skip channel-selection mode. 3. Rotate the DIAL knob so as to select ONLY. 4. When you have made your selection, press the PTT switch to save the setting and exit to normal operation. 5. To remove a channel from the Preferential Scan List, just repeat the above procedure, rotating the DIAL knob to select OFF in step 3 above. To initiate Preferential Memory Scan: 1. Press the [F] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 39: SCN MD. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob so as to select ONLY. 5. Press the PTT switch to save the setting and exit to normal operation. 6. Now, press and hold in either the [ (MHz)] or [ (MHz)] key for one second to initiate the Preferential Memory Scan. Only the channels which have the blinking icon appended to the channel number will be scanned. 7. To cancel the Preferential Memory Scan, just repeat the above procedure, rotating the DIAL knob to select MEM in step 4 above

Setting the Smart Search Mode
1. Press the [F] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 38: S SRCH. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired Smart Search mode (see above). 5. When you have made your selection, press the PTT switch to save the setting and exit to normal operation.
Storing Smart Search Memories
1. Set the radio to the VFO mode. Be sure that you have the Squelch adjusted properly (so that band noise is quieted). 2. Press and hold in the [3(LOW)] key for one second to begin the Smart Search scanning. 3. As active channels are detected, you will observe the number of loaded channels increasing in the regular memory channel window. 4. Depending on the mode you set for Smart Search operation (SINGLE or CONT), the Smart Search scan will eventually terminate, and the LCD will revert to Smart Search Memory Channel C. 5. To recall the Smart Search memories, rotate the DIAL knob to choose from among the frequencies stored by Smart Search. 6. To return to normal operation, press the [VFO(PRI)] key. Smart Search is a great tool when visiting a city for the first time. You dont need to spend hours looking up repeater frequencies from a reference guidebook.just ask your VX-170 where the action is!
INTERNET CONNECTION FEATURE
The VX-170 can be used to access a node (repeater or base station) which is tied into the Vertex Standard WIRES (Wide-Coverage Internet Repeater Enhancement System) network, operating in the SRG (Sister Radio Group) mode. Details may be found at the WIRES-II Web site: http://www.vxstd.com/en/wiresinfo-en/. This feature may also be used to access other systems, as described below. 1. Press the [0(SET)] key momentarily to activate the Internet Connection feature. The icon will appear in the upper right corner of the display. 2. Press and hold in the [0(SET)] key for one second, then rotate the DIAL knob to select the access number (ICOD 0 ~ 9, A, B, C, D, E ( ), F (#),) corresponding to the WIRES node to which you wish to establish an Internet link (ask the node or repeater owner/operator if you dont know the access number in the network). Now press the PTT switch to exit from the selection mode. 3. With the Internet Connection feature activated (as in step 1 above), the VX-170 will generate a brief (0.1 second) DTMF tone according to your selection in step 2. This DTMF tone is sent at the beginning of every transmission to establish or maintain the link to the local WIRES node operating in the SRG mode. 4. To disable the Internet Connection feature, press the [0(SET)] key momentarily (the icon will disappear from the display). If other users report that you always have a DTMF beep at the beginning of each transmission, and you are not operating in conjunction with Internet access, disable this function via step (4) above. You may access other Internet Link Systems (including WIRES in the FRG mode) that use a DTMF string for access. 1. Load the DTMF tones which you wish to use for Internet-link access into a DTMF Autodial memory register. For purposes of this example, we will use #123 as the access code. A. Press the [F] key, then press the [0(SET)] key to enter the Set mode. B. Rotate the DIAL knob to select Set Mode Item 17: DT WRT. C. Press the [F] key to enable adjustment of this Set Mode Item. D. Rotate the DIAL knob to select the DTMF Memory register (d1 ~ d9) into which you wish to store the access code. E. Press the [F] key momentarily. The first digit will blink. F. Rotate the DIAL knob to select F (representing DTMF #: the first digit of the DTMF string). G. Press the [F] key momentarily to accept the first digit and move to the second digit of the DTMF string. H. Repeat the previous steps until you have completed the ac-

Activating the DTMF Pager
1. Press the [F] key, then press the [0(SET)] key, to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 55: PAGER. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select ON. 5. Press the PTT switch to save the new setting and activate the DTMF Pager. When the DTMF Pager is activated, the P notation will replace the 100 MHz digit of the frequency display. 6. Press the PTT switch to send the 3-digit DTMF pager code which is stored in the last-selected DTMF Pager Memory register. 7. When you receive a DTMF paging call, it will open your radios DTMF squelch, and the LCD will display the 3-digit DTMF pager code which was received. After five seconds, the DTMF pager will revert to its squelched mode. 8. To disable the DTMF Pager, just repeat the above procedure, rotating the DIAL knob to select OFF in step 4 above. During DTMF Pager operation, you may set up the VX-170 such that a ringing Bell sound alerts you to the fact that a call is coming in, as described previously. See page 27 of the Operating Manual for details.
When you activate the ANI (Automatic Number Identification) feature during DTMF Pager operation, the DTMF tones stored in ANI memory will automatically be sent whenever you press the PTT switch. When the ANI is received, the LCD will displays the received ANI code after the 3-digit DTMF pager code.

Storing the ANI code

1. 2. 3. 4. 5. Press the [F] key, then press the [0(SET)] key, to enter the Set mode. Rotate the DIAL knob to select Set Mode Item 54: ANI.WRT. Press the [F] key momentarily to display any previously-stored ANI code. Press the [F] key again to clear any previous ANI code. Rotate the DIAL knob to select the first number/letter (0-9, A, B, C, D, E (substitute for ), and F (substitute for #), then press the [F] key momentarily to save the first letter/number and move on to the next character. 6. Repeat the previous step, as many times as necessary (up to 16 characters), to complete ANI code. If you make a mistake, press the [ (MHz)] key to move back to the previous letter/numbers slot, then re-select the correct letter/number. 7. When you have finished entering the ANI code and it contains less than 16 characters, press and hold in the [F] key for one second to confirm the callsign. (if the ANI code has exactly 16 characters, you do not need to press and hold in [F] in this step). 8. Press the PTT switch to save the settings and exit to normal operation. You may check your work by monitoring the entered callsign. To do this, repeat steps 1- 7 above, then press the MONI switch.

The following Set Mode Items will appears when the optional FTD-7 DTMF Paging Unit is installed.
SET MODE ITEM 53 [ANI] 54 [ANI.WRT] 55 [PAGER] 56 [PAG.COD] 57 [PAG.ABK] FUNCTION Enables/Disables the ANI function. Program the ANI Identifier. Enables/Disables the ANI function. Setting the Pager Code for the DTMF Pager. Enables/Disables the Answer Back function of the DTMF Pager. AVAILABLE VALUES (DEFAULT: BOLD ITALIC) ANI.OFF/ANI. ON --PAG.OFF/PAG. ON 000 - 999 ABK. OFF/ABK. ON

REPEATER SETTING

Enables/Disables the Automatic Repeater Shift function. Sets the Repeater Shift Direction. Sets the magnitude of the repeater Shift.
SET MODE ITEM A VAILABLE VALUES (DEFAULT)
4 [ARS] 35 [RPT.MOD] 41 [SHIFT] 7 [BELL] 13 [DCS.COD] 14 [DCS.N/R] 15 [DT DLY] 16 [DT SPD] 17 [DT WRT] 18 [ECS.CDR] 19 [ECS.CDT] 43 [SPLIT] 44 [SQL.TYP] 46 [TN FRQ] 2 [AR BEP] 3 [AR INT] 10 [CWID] 11 [CW WRT] ARS. ON / ARS.OFF RPT.OFF / RPT. / RPT. + ( ) 0.00 - 99.95 MHz ( ) OFF / 1T / 3T / 5T / 8T / CONT 104 standard DCS codes (023) T/RX N, RX R, TX R, T/RX R 50MS / 100MS / 250MS / 450MS / 750MS / 1000MS 50MS /100MS (R05_47) (T05_47) SPL.OFF / SPL. ON OFF / TONE / TSQL / REV TN / DCS 50 standard CTCSS tones (100 Hz) INRANG / ALWAYS / OFF 25 SEC / 15 SEC TX OFF / TX ON
CTCSS/DSC/DTMF/EPCS SETTING
Selects the number of CTCSS/DCS Bell ringer repetitions. Setting of the DCS code. Enables/Disables Inverted DCS code decoding. Setting of the DTMF Autodialer Delay Time. Setting of the DTMF Autodialer Sending Speed. Programming of the DTMF Autodialer. Setting the Receiver Pager Code for the Enhanced CTCSS Paging & Code Squelch. Setting the Transmitting Pager Code for the Enhanced CTCSS Paging & Code Squelch. Enables/Disables split CTCSS/DCS coding. Selects the Tone Encoder and/or Decoder mode. Setting of the CTCSS Tone Frequency.

ARTS SETTING

Selects the Beep option during ARTS operation. Selects the Polling Interval during ARTS operation. Enables/disables the CW identifier during ARTS operation. Programs and activates the CW Identifier (used during ARTS operation).

MEMORY SETTING

FREQ / ALPHA BUSY / HOLD / TIME RVT.OFF / RVT. ON ONLY / MEM ON / OFF OFF / SKIP / ONLY ALT.OFF / ALT. ON 200 MS / 300 MS / 500 MS / 1 S / 2 S / OFF SAV.OFF / SAV. ON INT.OFF / INT.COD / INT.MEM CODE 0 - CODE 9, CODE A - CODE F, (CODE 1) d1 - d9
Toggles the display indication between frequency and the 28 [NAME] channels Alpha/Numeric Tag. Stores Alpha-Numeric Tags for the Memory channels. 29 [NM WRT]

SCAN SETTING

Selects the Scan Resume mode. Enables/disables the Priority Revert feature. Selects the Memory Scan channel-selection mode. Enables/Disables the Scan lamp while paused. Selects the Memory Scan Skip channel-selection mode. Enables/Disables the Weather Alert Scan feature.
32 [RESUME] 36 [PRI.RVT] 39 [SCN MD] 40 [SCN.LMP] 42 [SKIP] 52 [WX ALT]

POWER SAVER SETTING

Selects the Receive-mode Battery Saver interval (sleep 37 [RXSAVE] ratio). Enables/Disables the Transmitter Battery Saver. 49 [TXSAVE]

WIRES SETTING

Selects the Internet Link Connection mode. 22 [I NET] Selects the Access Number (DTMF digit) for WIRES op- 23 [INT CD] eration. Selects the memory register for an Access Number (DTMF 24 [INT MR] digit) for non-WIRES.

SWITCH/KNOB SETTING

Enables/Disables the beeper. Selects the LCD/Keypad Lamp mode. Selects the Control Locking lockout combination. Selects the MONI switch function. Selects the function of the [HM/RV] key.
SET MODE ITEM AVAILABLE VALUES (DEFAULT)
6 [BEEP] 25 [LAMP] 26 [LOCK] 27 [M/T-CL] 33 [REV/HM] 1 [APO] 5 [BCLO] 8 [BSY.LED] 9 [CLK.SFT] 12 [DC VLT] 20 [EDG.BEP] 21 [EMG S] KEY+SC / KEY / OFF KEY / 5SEC / TOGGLE LK KEY / LKDIAL / LK K+D / LK PTT / LK P+K / LK P+D / LK ALL MONI / T-CALL <REV> / <HOME> OFF / 0.5H - 12.0 H BCL. ON / BCL.OFF LED. ON / LED.OFF SFT.OFF / SFT. ON BEP.OFF / BEP. ON EMG.BEP / EMG.LMP / EMG.B+L / EMG.CWT / EMG.C+B / EMG.C+L / EMG.ALL / OFF PWD.OFF / PWD. ON S-1 / S-2 / S-3 / S-4 / S-5 / S-6 / S-8 / S-FULL / OFF SINGLE / CONT 5 / 10 /12.5 / 15 / 20 / 25 / 50 / 100 kHz, or AUTO 1MIN - 30MIN or OFF (6MIN) LED. ON / LED.OFF SPL.OFF / SPL. ON WIDE / NARROW ANI.OFF / ANI. ON PAG.OFF / PAG. ON 000 - 999 ABK. OFF / ABK. ON

MISCELLANEOUS SETTING

Setting of the Automatic Power-Off feature. Enables/Disables the Busy Channel Lock-Out feature. Enables/Disables the BUSY LED while the Squelch is open. Shifting of the CPU clock frequency. Indicates the DC Supply Voltage. Enables/Disables the Band-edge beeper while selecting the frequency via the DIAL knob. Selects the alarm(s) utilized when the Emergency function is engaged. Enables/disables the Password feature. Stores the password. Adjusts the RF Squelch threshold level. Selects the Smart Search Sweep mode. Setting of the synthesizer steps. Setting of the TOT time Enables/Disables the TX LED while the radio is transmitting. Enables or disables VFO Split operation. Select Wide (5 kHz) or Narrow (2.5 kHz) TX Deviation.