Yaesu FT-7900R Operating Manual
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Yaesu FT-7900R Operating Manual

Dual band fm transceiver
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DUAL BAND FM TRANSCEIVER
FT-7900R
O
M
PERATING
ANUAL
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
VERTEX STANDARD ( AUSTRALIA ) PTY., LTD.
Normanby Business Park, Unit 14/45 Normanby Road
Notting Hill 3168, Victoria, Australia

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  • Page 1 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. YAESU UK LTD. Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K. VERTEX STANDARD HK LTD. Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong VERTEX STANDARD ( AUSTRALIA ) PTY., LTD.

  • Page 2: Table Of Contents

    Contents FT-7900R Quick Reference Guide ....i Memory Operation ......... 32 Introduction ............1 Regular Memory Channel Operation ... 33 Specifications ............ 2 Memory Storage ........33 Accessories & Options ........3 To Append an Alpha-numeric “Tag” Supplied Accessories ........3 to a Memory .........

  • Page 3: Introduction

    Watts of power output on the 144 MHz Amateur band and 45 Watts on the 430 MHz Ama- teur band. The high power output of the FT-7900R is produced by its RD70HVF1 Power MOS FET amplifier, with a direct-flow heat sink and thermostatically-controlled cooling fan maintain- ing a safe temperature for the transceiver’s circuitry.

  • Page 4: Specifications

    AF Output Impedance: 4-16 Ω Specifications are subject to change without notice, and are guaranteed within the 144 and 430 MHz amateur bands only. Frequency ranges will vary according to transceiver ver- sion; check with your dealer. FT-7900R O PERATING ANUAL...

  • Page 5: Accessories & Options

    Packet Interface Cable Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable in some regions. Consult your Yaesu dealer for details regarding these and any newly-available options Connection of any non-Yaesu- approved accessory, should it cause damage, may void the Limited Warranty on this appa- ratus.

  • Page 6: Installation

    Do not install the transceiver on top of another heat-generating device (such as a power supply or amplifier), and do not place equipment, books, or papers on top of the FT-7900R. Avoid heating vents and window locations that could expose the transceiver to excessive direct sunlight, especially in hot climates.

  • Page 7: Safety Information

    AFETY NFORMATION The FT-7900R is an electrical apparatus, as well as a generator of RF (Radio Frequency) energy, and you should exercise all safety precautions as are appropriate for this type of device. These safety tips apply to any device installed in a well-designed amateur radio station.

  • Page 8: Antenna Considerations

    NTENNA ONSIDERATIONS The FT-7900R is designed for use with antennas presenting an impedance of near 50 Ohms at all operating frequencies. The antenna (or a 50 Ohm dummy load) should be connected whenever the transceiver is turned on, to avoid damage that could otherwise result if trans- mission occurs accidentally without an antenna.
  • Page 9 The use of the shortest possible length of the highest quality coaxial cable that fits within your budget will ensure the best performance from your FT-7900R. FT-7900R O...

  • Page 10: Mobile Installation

    NSTALLATION OBILE NSTALLATION The FT-7900R must only be installed in vehicles having a 13.8 Volt negative ground elec- trical system. Mount the transceiver where the display, controls, and microphone are easily accessible, using the supplied MMB-36 mounting bracket. The transceiver may be installed in almost any location, but should not be positioned near a heating vent nor anywhere where it might interfere with driving (either visually or mechani- cally).

  • Page 11: Mobile Power Connections

    Yaesu dealer. Other external speakers may be used with the FT-7900R, if they present the specified 8-Ohm impedance and are capable of handling the 2 Watts of audio output supplied by the FT-7900R. FT-7900R O...

  • Page 12: Base Station Installation

    TNC, if it is designed for multiple-radio use, by connecting the TNC “Radio 1” port to the 1200 bps lines on the FT-7900R, and the “Radio 2” port to the 9600 bps lines. The pin connections of the Data connector are shown below.
  • Page 13 Finally, note that the Menu (“Set”) mode allows you to set the Packet data rate (1200 or 9600 bps) independently for each band. If you have trouble getting your FT-7900R to respond correctly during packet operation, check to be certain that you do not have Menu #26 (PKT.SPD...

  • Page 14: Front Panel Controls & Switches

    Press this key momentarily to change the Tone Squelch mode: ENC (CTCSS Encoder), ENC.DEC (CTCSS Tone Squelch), or DCS (DCS) operation. Press and hold in this key for 1/2 second to reverse the transmit and receive frequencies during split-frequency (i.e. “Repeater”) operation. FT-7900R O PERATING ANUAL...
  • Page 15 Press and hold in this switch for 1/2 second to toggle the transceiver’s power on and off. ( L )] Key Press this key momentarily to activate the Internet Connection Feature. Press and hold in this key for 1/2 second to toggle the Lockout Feature “on” or “off”. FT-7900R O PERATING ANUAL...

  • Page 16: Side Panel Connection & Knob

    Operating Frequency Menu (“Set”) Mode Active Keypad/DIAL Lock Active 9600 bps Packet Mode Internet Connection Feature Active AM Mode Selected S- & PO Meter Low TX Power Selected BUSY Channel (or Squelch Off) Midium TX Power Selected FT-7900R O PERATING ANUAL...

  • Page 17: Rear Panel Connections

    10 Amperes (continuous duty). Make certain that the Red lead connects to the Positive (+) side of the power source, and that the Black lead connects to the Negative (–) side of the power source. FT-7900R O PERATING ANUAL...

  • Page 18: A6J Microphone

    250 MHz 350 MHz 430 MHz 850 MHz In the Memory mode, press this button momentarily to activate the “Memory Tune” function. Press and hold in this key for 1/2 second to enter the Set (“Menu”) mode. FT-7900R O PERATING ANUAL...
  • Page 19 Press (or hold in) either of these buttons to tune (or scan up or down) the operating frequency or through the memory channels. In many ways, these buttons emulate the function of the (rotary) DIAL knob. FT-7900R O PERATING ANUAL...

  • Page 20: B6Js

    Press and hold in this key for 1/2 second to recall the Weather Broadcast Channels. You can program the [ ACC ] , [ P ] , [ P1 ] , and [ P2 ] buttons for other functions, if desired. See page 62 for details. FT-7900R O PERATING ANUAL...
  • Page 21 In many ways, these buttons emulate the function of the (rotary) DIAL knob. Notice: If you change the microphone from the MH-48 to the MH-42 B6JS vice versa, change the setting of Menu #22 (MIC MIC). See page 73 for details. FT-7900R O PERATING ANUAL...

  • Page 22: Basic Operation

    Hi! I’m R. F. Radio, and I’ll be helping you along as you learn the many features of the FT-7900R. I know you’re anxious to get on the air, but I encourage you to read the “Operation” section of this manual as thoroughly as possible, so you’ll get the most out of this fantastic new transceiver.

  • Page 23: Frequency Navigation

    1 ) Tuning Dial Rotating the DIAL knob allows tuning in the pre-programmed steps established for the VFO frequency. Clockwise rotation of the DIAL knob causes the FT-7900R to be tuned toward a higher frequency, while counter-clockwise rotation will lower the operating frequency.

  • Page 24: Transmission

    Changing the Transmitter Power Level You can select from among a total of four transmit power levels on your FT-7900R. To change the power level, press the [ LOW ( ACC )] key to select one of four power settings. These power levels will be stored, in memory registers, at the time of memory storage (see page 32 for details on Memory operation).

  • Page 25: Advanced Operation

    DVANCED PERATION EATURE In order to prevent accidental frequency change or inadvertent transmission, the FT-7900R panel switches, microphone switches (except the PTT switch), and DIAL knob may be locked out. To activate the lock feature, press and hold in the [ ( L )] key for 1/2 second.

  • Page 26: Display Brightness

    PERATION ISPLAY RIGHTNESS The FT-7900R display illumination has been specially engineered to provide high visibility with minimal disruption of your “night vision” while you are driving. The brightness of the display is manually adjustable, using the following procedure: 1. Press and hold in the [ BAND ( SET )] key for 1/2 second to enter the Set mode.

  • Page 27: Channel Step Selection

    (“AUTO”), any number of which may be important to your operating requirements. The FT-7900R is set up at the factory in the “AUTO” configuration, which probably is satisfactory for most operation. However, if you need to change the channel step increments, the procedure to do so is very easy;...

  • Page 28: Repeater Operation

    EPEATER HIFTS Your FT-7900R has been configured, at the factory, for the repeater shifts customary in your country. While the 144 MHz shift will be 600 kHz; on 70 cm, the shift may be 1.6 MHz, 7.6 MHz, or 5 MHz (USA version).

  • Page 29: Manual Repeater Shift Activation

    If you just have one “odd” split that you need to program, don’t change the “de- fault” repeated shifts using this Menu Item! Enter the transmit and receive fre- quencies separately, as shown on page 34. FT-7900R O PERATING ANUAL...
  • Page 30 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 FT-7900R, and is very easy to activate.

  • Page 31: Ctcss/Dcs Operation

    CTCSS to control access to the repeater, but don’t pass it along when transmit- ting. If the S-Meter deflects, but the FT-7900R is not passing audio, press the [ TONE ( REV )] key so that “ENC” appears - this will allow you to hear all traffic on the channel being received.

  • Page 32: Tone Search Scanning

    When this happens, it may be that the other station is not sending any tone. You can press the [SCAN(SEL)] key to halt the scan at any time. Tone Scanning works either in the VFO or Memory modes. FT-7900R O PERATING ANUAL...

  • Page 33: Split Tone Operation

    PLIT PERATION The FT-7900R can be operated in a Split Tone configuration via the Set mode. 1. Press and hold in the [ BAND ( SET )] key for 1/2 second to enter the Set mode. 2. Rotate the DIAL knob to select Menu #41 (SPLIT...

  • Page 34: Memory Operation

    EMORY PERATION The FT-7900R provides a wide variety of memory system resources. These include: “Regular” Memory Channels, which includes: 1000 “Standard” memory channels, numbered “000 000” through “999 999.” 5 Home channels, providing storage and quick recall of one prime frequency on each operating band.

  • Page 35: Regular Memory Channel Operation

    4. When you have completed the creation of the label, press and hold in the [ BAND ( SET )] key for 1/2 second to save the label and exit to normal operation. FT-7900R O PERATING ANUAL...

  • Page 36: Storing Independent Transmit Frequencies ("Odd Splits")

    You can confirm the Transmit and Receive TONE/DCS by alternately press and holding of the [ TONE ( HM/RV )] key. 5. Press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...

  • Page 37: Memory Recall

    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 FT-7900R in the “MR” (Memory Recall) mode, select the desired memory channel. 2. Now press the [ BAND ( SET )] key momentarily; the “...

  • Page 38: Deleting Memories

    3. Rotate the DIAL knob to select Menu #24 (NM WRT NM WRT NM WRT). NM WRT NM WRT 4. Press the [ BAND ( SET )] key twice, then rotate the DIAL knob to select the first character in the name you wish to FT-7900R O PERATING ANUAL...
  • Page 39 [ B ] key momentarily to switch the Home channel display between the “Frequency” format and “Alpha-numeric Tag” format. Menu #16 (HM/REV) allows configuration of the way you can access the “HOME” channel. See page 72. FT-7900R O PERATING ANUAL...

  • Page 40: Memory Bank Operation

    CH 998 436.780 MHz CH 999 128.600 MHz Air Band Channels 1) You may assign one memory channel into several Memory Banks. 2) The PMS memory channels (L1/U1 through L50/U50) may not be assigned to a Memory Bank. FT-7900R O PERATING ANUAL...

  • Page 41: Memory Only Mode

    3. Rotate the DIAL knob to select the (F-6 M-ONLY F-6 M-ONLY) op- F-6 M-ONLY F-6 M-ONLY F-6 M-ONLY tion, then press and hold in the [ BAND ( SET )] key for 1/2 second. To return to normal operation, repeat the above steps. FT-7900R O PERATING ANUAL...

  • Page 42: Hyper Memory Channel Operation

    HANNEL PERATION The FT-7900R usually stores, into memory, the operating frequency and some aspects of operating status (such as VFO scan, CTCSS/DCS data, repeater shift, power level etc.). However, the “Hyper Memory” Mode allows you to store the total current configuration of the radio into a special “Hyper”...

  • Page 43: Weather Broadcast Channel Operation

    In the event of extreme weather disturbances, such as storms and hurricanes, the NOAA (National Oceanic and Atmospheric Administration) sends a weather alert accompanied by a 1050 Hz tone and subsequent weather report on one of the NOAA weather channels. FT-7900R O PERATING ANUAL...

  • Page 44: Scanning

    CANNING The FT-7900R allows you to scan just the memory channels, the entire operating band, or a portion of that band. It will halt on signals encountered, so you can talk to the station(s) on that frequency, if you like.

  • Page 45: Vfo Scanning

    7. To cancel scanning, press the [ SCAN ( SEL )] key momentarily again (or press the microphone’s PTT key). 1) When you start scanning, the FT-7900R will be changing frequency in the upward direction. If you want to change direction of the scan while it is underway, rotate the DIAL knob one click in the opposite direction (in this case, one click counter- clockwise).

  • Page 46: Memory Scanning

    OFF” in step 5 above (the “Skipped” channel will 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). FT-7900R O PERATING ANUAL...

  • Page 47: Preferential Memory Scan

    CANNING Preferential Memory Scan The FT-7900R 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 “ ” icon when you have selected them, one by one, for the Preferential Scan List.

  • Page 48: Memory Bank Scan

    This feature allows you to check a Weather Broadcast Memory Channel while operating on a VFO scan or Memory channel scan. When the Weather Alert Scan feature is engaged, the FT-7900R will check the Weather Broadcast Memory Channels for activity every five seconds while operating on a VFO scan or Memory channel scan.

  • Page 49: Programmable (Band Limit) Memory Scan

    7. To exit to normal operation, press and hold in the [ SCAN ( SEL )] key for 1/2 second. FT-7900R O PERATING ANUAL...

  • Page 50: Priority Channel" Scanning (Dual Watch)

    4. Press and hold in the [ MHz ( PRI )] key for one second to disable the Memory Priority mode and exit to regular memory operation. When the Memory Bank feature is activated, the FT-7900R will check the lowest memory channel in the Memory Bank as the priority channel.

  • Page 51: Wx Priority

    WX Priority 1. Recall the memory channel you wish to use as the “Priority” frequency. 2. Now set the FT-7900R for operation on a WX channel by pressing and holding in the [ LOW ( ACC )] key for 1/2 second.

  • Page 52: Smart Search

    (see above). 4. Press the [ BAND ( SET )] key momentarily to save the new setting, then press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...
  • Page 53 7. To return to normal operation, just press the [ V/M ( MW )] key. The Smart Search memories are so-called “soft” memories; they will lost if you exit the Smart Search mode or initiate a new Smart Search sweep. FT-7900R O PERATING ANUAL...

  • Page 54: Arts

    IN.RNG station’s polling code was received in response to yours. 4. Press and hold in the [ S.SCH ( ARTS )] key for 1/2 second to exit ARTS operation and resume normal operation of the transceiver. FT-7900R O PERATING ANUAL...

  • Page 55: Arts Polling Time Options

    (see above). 4. Press the [ BAND ( SET )] key momentarily to save the new setting, then press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...

  • Page 56: Cw Identifier Setup

    13. Press the [ BAND ( SET )] key momentarily to save the new setting, then press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...
  • Page 57 FT-7900R O PERATING ANUAL...

  • Page 58: Dtmf Autodialer Operation

    DTMF A UTODIALER PERATION Sixteen DTMF Autodialer memories are available on the FT-7900R. These DTMF Autodialer memories can store up to 16 digits of a telephone number for repeater autopatch or other uses. To load DTMF Autodialer memories, use following procedure: 1.
  • Page 59 1000 4. Press the [ BAND ( SET )] key momentarily to save the new setting, then press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...

  • Page 60: Internet Connection Feature

    NTERNET ONNECTION EATURE The FT-7900R can be used to access a repeater or base station which is configured to provide access to the Vertex Standard WiRES (Wide-Coverage Internet Repeater Enhance- ment System) operating in the “SRG” (“Sister Radio Group”) mode.
  • Page 61 (to establish the link to the Internet link repeater). 13. To disable the Internet link feature, press the [ ( L )] key again. To return to WiRES , recall Menu #18 (I NET) then set it to “INT.COD”. FT-7900R O PERATING ANUAL...

  • Page 62: Miscellaneous Settings

    (the default selection). 4. Press the [ BAND ( SET )] key momentarily to save the new setting, then press and hold in the [ BAND ( SET )] key for 1/2 second to exit to normal operation. FT-7900R O PERATING ANUAL...

  • Page 63: Mic Gain Control

    [ BAND ( SET )] key for 1/2 second to exit to normal operation. To restore the normal (higher) microphone input level, select “WIDE WIDE” in step 3 above. WIDE WIDE WIDE FT-7900R O PERATING ANUAL...

  • Page 64: Programming The Key Assignment

    SSIGNMENTS Default FT-7900R functions have been assigned to “alternate” (press and hold in) function of the front panel’s [ LOW ( ACC )] key, as well as the Microphone’s [ P1 ] / [ P2 ] / [ P3 ] / [ P4 ] ;...
  • Page 65 < V < V M > VFO, Memory System, and Home chan- register. nel. Activate the Scanner. Select the scan mode. < SCAN > < SCAN > < SCAN > < SCAN > < SCAN > FT-7900R O PERATING ANUAL...

  • Page 66: Dcs Code Inversion

    [ BAND ( SET )] key for 1/2 second to exit to normal operation. Remember to restore the default setting to “T T T T T /RX N RX N” (Encoder; Normal, Decoder; Normal) RX N RX N RX N when done. FT-7900R O PERATING ANUAL...

  • Page 67: Reset Procedure

    F-5 ALLRST F-5 ALLRST F-5 ALLRST F-5 ALLRST 4. Press and hold in the [ BAND ( SET )] key for 1/2 second to complete the reset procedure, once you have made your selection in step 3. FT-7900R O PERATING ANUAL...

  • Page 68: Cloning

    LONING You can transfer all data stored in one FT-7900R to another FT-7900R by utilizing the handy “Cloning” feature. This requires a user-constructed Cloning cable which connects the DATA jacks on the two transceivers, as shown below. To clone from one transceiver to another, use the following procedure: 1.

  • Page 69: Menu ("Set") Mode

    ( “S ” ) M The FT-7900R Set (Menu) mode, already described in parts of many previous chapters, is easy to activate and set. It may be used for configuration of a wide variety of transceiver parameters, some of which have not been detailed previously. Use the following procedure to activate the Set (Menu) mode: 1.
  • Page 70 Selects or disables the VFO band edge limiting for the current band. BND.ON/BND.OFF WID.NAR Reducing the MIC Gain (and Deviation). WIDE/NARROW WX ALT Enables/disables the Weather Alert Scan. ALT.ON/ALT.OFF : Depends on the band of operation. FT-7900R O PERATING ANUAL...
  • Page 71 Selects the Receiving mode. 35 RX MOD AUTO/FM/AM Selects or disables the VFO band edge limiting for the current band. 46 VFO.BND BND.ON/BND.OFF Reducing the MIC Gain (and Deviation). 47 WID.NAR WIDE/NARROW : Depends on the band of operation. FT-7900R O PERATING ANUAL...
  • Page 72 Disable the beeper. Menu #6 [ CLK.SFT ] Function: Shifting of CPU clock frequency. Available Values: SFT.ON/SFT.OFF Default: SFT.OFF This function is only used to move a spurious response “birdie,” should it fall on a desired frequency. FT-7900R O PERATING ANUAL...
  • Page 73 Menu #14 [ DT WRT ] Function: Loading of the DTMF Autodialer Memories. See page 56 for details. Menu #15 [ EDG.BEP ] Function: Enables/Disables the Band-edge beeper while selecting the frequency by the DIAL knob. Available Values: BEP.ON/BEP.OFF Default: BEP.OFF FT-7900R O PERATING ANUAL...
  • Page 74 Menu #19 [ INT CD ] Function: Selects the Access Number (DTMF digit) for WiRES operation. Available Values: CODE “0” ~ CODE “9”, CODE “A”, CODE “B”, CODE “C”, CODE “D”, CODE “E( )”, CODE “F(#)” Default: CODE “1” FT-7900R O PERATING ANUAL...
  • Page 75 Function: Enables/disables the microphone input during Packet operation. Available Values: MIC.ON/MIC.OFF Default: MIC.OFF Menu #26 [ PKT.SPD ] Function: Sets the transceiver’s circuitry for the Packet baud rate to be used. Available Values: 1200bps/9600bps Default: 1200bps FT-7900R O PERATING ANUAL...
  • Page 76 Menu #32 [ RF SQL ] Function: Adjusts the RF SQL threshold level. Available Values: OFF/S-2/S-3/S-4/S-5/S-6/S-7/S-8/S-9/S-FULL Default: OFF Menu #33 [ RPT.MOD ] Function: Sets the Repeater Shift Direction Available Values: RPT.OFF/RPT. –/RPT. + Default: Depends on the band of operation. FT-7900R O PERATING ANUAL...
  • Page 77 Menu #38 [ SCN MD ] Function: Selects the Memory Scan channel-selection mode. Available Values: MEM/ONLY Default: MEM MEM: The scanner will “skip” the flagged channels during scanning. ONLY: The scanner will only scan channels that are flagged (Preferential Scan List). FT-7900R O PERATING ANUAL...
  • Page 78 Menu #42 [ SQL.TYP ] Function: Selects the Tone Encoder and/or Decoder mode. Available Values: OFF/ENC/ENCDEC/REV TN/DCS Default: OFF ENC: CTCSS Encoder ENC DEC: CTCSS Encoder/Decoder REV TN: Reverse CTCSS Decoder DCS: Digital Code Squelch Encoder/Decoder FT-7900R O PERATING ANUAL...
  • Page 79 Function: Reducing the MIC Gain (and Deviation). Available Values: WIDE/NARROW Default: WIDE Note: This Menu Item can be set independently for each band. Menu #48 [ WX ALT ] Function: Enables/disables the Weather Alert Scan feature Available Values: ALT.ON/ALT.OFF Default: ALT.OFF FT-7900R O PERATING ANUAL...

  • Page 80: Auto" Mode Preset Operating Parameters

    800.000 - 999.990 12.5 kHz 336.000 - 420.000 12.5 kHz 420.000 - 450.000 25 kHz 450.000 - 470.000 12.5 kHz 470.000 - 520.000 50 kHz 700.000 - 800.000 50 kHz 803.000 - 999.990 12.5 kHz Cellular Blocked FT-7900R O PERATING ANUAL...
  • Page 81 FT-7900R Q UICK EFERENCE UIDE LOCK S WITCH Press and hold for 1/2 second to lock all key functions except VOL K OWER WITCH the VOL, SQL knobs Adjusts the audio Press and hold for and PTT switch. volume level.
  • Page 82 FT-7900R Q UICK EFERENCE UIDE VERVIEW RESS RIEFLY RESS AND Allows tuning in 1-MHz steps Activates the Priority Channel on the VFO frequency, or tun- Scanning (Dual Watch fea- ing in 10 channel steps on the ture). memory channels. Changes the Tone Squelch Reverses the transmit and re- mode.
  • Page 83 1. Changes or modifications to this device not expressly approved by VERTEX STANDARD could void the user’s authorization to operate this device. 2. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions; (1) This device may not cause harmful interference, and (2) this device must accept any interference including received, interference that may cause undesired operation.
  • Page 84 Copyright 2009 Printed in Japan VERTEX STANDARD CO., LTD. All rights reserved. No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO., LTD.

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