Kenwood TM-V7A instruction manual Ptt

Page 96

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Problem

 

Probable Cause

 

Corrective Action

Page

 

 

Ref.

 

 

 

 

 

 

 

 

 

 

 

You cannot transmit even

1

The microphone plug was not

1

Switch OFF the power, then insert the

6

though you press Mic

 

inserted completely into the front

 

microphone plug until the locking tab

 

[PTT].

 

panel connector.

 

clicks in place.

 

 

2

You selected a transmit offset that

2

Press [F], [SHIFT] repeatedly so neither

23

 

 

places the transmit frequency

 

"+" nor "–" is visible.

 

 

 

outside the allowable transmit

 

 

 

 

 

frequency range.

 

 

 

 

 

 

 

 

 

Packet operation results in

1

Your frequency differs from the

1

Adjust your frequency using the Tuning

17

no connects with other

 

target station’s frequency.

 

control.

 

stations.

2

The modulation level from the TNC

2

Adjust the TNC modulation level

79

 

 

 

is incorrect.

 

according to the TNC instruction manual.

 

 

3

There is multi-path distortion.

3

Reorient or relocate the antenna. The

 

 

strongest signal does not always provide

 

 

 

 

 

the best operation on packet.

 

 

4

The TX delay of your TNC may not

4

It is recommended to set the TX delay

79

 

 

be long enough.

 

parameter on the TNC to 300 ms by using

 

 

 

 

 

your computer.

 

Note: You can also use the RESET switch to initialize settings. Push the switch momentarily to do Partial Reset or press it for 1 second or longer to do Full Reset {page 35}. No confirmation message appears. Use this switch when the microcomputer and/or the memory chip malfunction because of ambient factors.

Viewed with the front panel removed

RESET switch

90

Image 96
Contents TM-V7A Features Thank YOUModels Covered by this Manual When condensation occurs inside the transceiver One or more of the following statements may be applicableContents Partial Reset VFO Full Reset Memory Selecting the Number of Channels Using Visual ScanSetting Scan Limits Using Program Scan Selecting Scan Resume Method1200/ 9600 bps Operation Data Connector Pin Functions Transceiver Lock All LockSquelch Hang Time Supplied Accessories Conventions Followed in this ManualMobile Installation Installation ExampleInstallation Steps Preparation for Mobile and Fixed Station OperationDC Power Cable Connection Mobile OperationFixed Station Operation PS-33 20.5 A, 25% duty cycleTransceiver 15 a Supplied Accessory 20 a DC Power Cable Antenna ConnectionReplacing Fuses Fuse Location Fuse Current RatingAccessory Connections Packet Equipment ConnectionsExternal Speakers MicrophoneYour First QSO EwwewwGetting Acquainted Basic Transceiver ModesTX-Band Control BandFront Panel Function button Tone buttonREV button LOW button3MNU button Selects the Menu mode Rear PanelMicrophone Indicators Transceiver Guide Function IndexVFO Scan Transmit Stored To exit Guide mode, press MNU againSwitching Power ON/OFF Adjusting Squelch Selecting a Band Adjusting VolumePress Band SEL to select the VHF or UHF band Turn the VOL control clockwise to increase the audio levelTuning Control Selecting FrequenciesMicrophone UP/DWN Buttons Selecting Output Power When you finish speaking, release Mic PTTHigh Medium Low No Indicator TransmittingWhat is a MENU? Menu AccessSelect the desired band Menu Configuration Description SelectionsMulti-function Button Label See reference Memory Channel LockoutItem No Description Selections Default Operating Through Repeaters Compared to simplex communication, you can usually+600 kHz +5 MHz +1.6 MHz Not applicableSelecting Offset Direction SimplexSelecting Offset Frequency Activating Tone FunctionSelecting a Tone Frequency FreqAutomatic Repeater Offset A./ Canada/ Europe Only This complies with the standard Arrl band planEuropean versions Press s, then select Item No Auto OffsetTo cancel ASC, press REV Reverse FunctionAutomatic Simplex Checker ASC Memory Channels Simplex or Split Memory CHANNEL?Parameter Simplex Split ChannelVHF/UHF Memory Channel Ratio VHF Band UHF BandPress SET, then select the desired ratio Press SET againStoring Data in Simplex Channels Storing Data in Split Channels31, or the Call channel Press MHz+ Power on Recalling Memory ChannelsClearing Memory Channels Press MR againNaming Memory Channels Changing Call Channel Contents Simplex Call ChannelRecalling the Call Channel Changing Call Channel Contents Split Channel Display FunctionPartial Reset VFO Full Reset MemoryInitializing Memory Programmable Memory PM Programmable InformationSolution Transceiver default environment. You will not loseContents of any memory channels Application ExamplesStoring Data in PM Channels Confirm that the following conditions have been SatisfiedPress 1 to 4 corresponding to the desired PM channel Press 1 to 4 corresponding to the desired PM ChannelResetting Programmable Memory Press CALL+ Power onAuto PM Channel Storing Press s, then select Item No PM Auto StoreScan Scan Type Scan RangeVisual Scan Selecting the Number of ChannelsUsing Visual Scan Scan Resume Methods Selecting Scan Resume MethodMemory Scan VFO Scan allows you to scan all frequencies fromCurrent frequency step size is used Press SET to toggle Lockout on or OFF default Locking Out Memory ChannelsPress s, then select item No Lock Out Setting Scan Limits Program ScanUsing Program Scan MHz ScanCALL/VFO Scan Using Ctcss When you are calledWhen you make a call Press and hold Mic PTT Continuous Tone Coded Squelch System CtcssDual Tone Squelch System Dtss Storing Dtss CodesPress s Repeat Steps 4 and 5 to select the second and thirdUsing Dtss When you make a callSelect the appropriate Dtss code Press and hold Mic PTT to transmit your Dtss codePress MNU to enter Menu mode Select Menu No Code Squelch Press s, then select Item No CSQ DelayPress MNU again to exit Menu mode Dtss and RepeatersCode Memory Communication Network ExampleMember Ch. a 222 333 444 789To switch Page OFF, press F, Dtss 15 4 Use the TuningStoring page Codes Channel a Control or Mic UP/DWN to selectCalling ReceivingDtss and Repeaters page 52. This setting is Locking OUT page CodesShared with Dtss Auto page Cancel Press s, then select Item No PAG CancelAnswer Back U.S.A./ Canada only Press s, then select Item No Answer BackDual Tone MULTI-FREQUENCY Dtmf Functions Autopatch U.S.A. and CanadaMic Keypad Confirmation Tones Press MNU to enter Menu mode Select Menu No Dtmf Memory Press SET to complete settingConfirming Stored Dtmf Numbers Transmitting Stored Dtmf NumbersPress Mic PTT + PF Press Mic 0 to 9 to select the desired channelTIME-OUT Timer TOT Press MNU to enter Menu mode Select Menu No APOPress SET to toggle the function on or OFF default Auxiliary FunctionsC. will temporarily switch the RX only band to the TX Advanced Intercept Point AIPBand. This function allows you to reply to a caller without Manually selecting the correct bandConfiguration Dual Band RXVHF and UHF VHF or UHF VHF and VHF UHF and UHFSwitching AM/FM Mode Some Versions only Programmable VFOChanging Frequency Step Size 10, 15, 20 or 50 kHz 25, 12.5 or 25 kHzDisplayed Frequency 00, 05, 10 20, 25, 30 40, 45, 50 60, 65, 70 80, 85, 90Changing Beep Volume Press s, then select Item No Beep VolumeLabels after Pressing F Press s, then select Item NoLock Transceiver LockAll Lock Press F, MHz to toggle Transceiver Lock on or OFFMeter Squelch Squelch Hang TimePOWER-ON Message Display Demonstration ModePress s, then select Item No Power On Msg Press VFOChanging Display Conditions Display DimmerAuto Dimmer Change Press s , then select Item No Reverse Mode Press SET to toggle Negative default or PositiveDisplay Contrast Positive/Negative ReversalConfiguring Program Function Keys Default Function+ Mic KEY PWR switch Tuning control VOL control SQL control User Setting MonitorEnter VoiceKeypad Direct Entry Operating Frequency EntryUse the Mic keypad to enter the desired frequency 12.5 62.5 37.5 87.5Memory Channel Number Entry Tone Frequency Number EntryUse the Mic keypad to enter 2 or 3 digits VOL SQL Key Function Squelch Adjustment2 Microphone ControlKey Key FunctionActivating Microphone Control Press s, then select Item No Mic ControlPacket Operation Connect this transceiver to your personal computer via a1200 bps 9600 bpsData Connector Pin Functions Pin FunctionRepeater Function U.S.A./ Canada only CROSS-BAND RepeaterLOCKED-BAND Repeater TX HoldKey Pressed New Mode Announcement VS-3 Voice Synthesizer OptionalCall Channel Programmable Memory MenuPage Installing Options Replace the upper cover 5 screwsWhen the release switch clicks, the front panel is secured Installation Examples DFK-3CMaintenance ServiceService Note CleaningTroubleshooting Problem Probable Cause Corrective ActionSecurely to the main unit by using the same PTT Specifications GeneralTransmitter ReceiverIndex
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TM-V7A specifications

The Kenwood TM-V7A is a sophisticated dual-band transceiver that has garnered the attention of amateur radio enthusiasts worldwide. Designed for VHF and UHF operations, it offers a plethora of features that enhance communication capabilities and provide a robust user experience.

One of the standout characteristics of the TM-V7A is its dual-vfo (variable frequency oscillator) configuration, which allows users to monitor two frequencies simultaneously. This feature is particularly useful for coordinating communications across different bands or for listening to two channels at once. The large, bright LCD display provides clear visibility of the operating frequency, with the ability to monitor a wealth of information, including received signal strength and battery voltage.

The TM-V7A supports a wide range of operating modes, including FM, AM, and SSB, making it versatile enough for different communication needs. The device is compatible with CTCSS (Continuous Tone-Coded Squelch System) and DCS (Digital-Coded Squelch), which adds significant convenience for group communications by reducing unwanted noise and interference.

Another important feature is its built-in APRS (Automatic Packet Reporting System) functionality. This allows operators to transmit their position automatically and share information with other APRS users. The built-in GPS capability enhances this feature, providing accurate location tracking that can be particularly beneficial during emergency response situations or for outdoor events.

For enhanced audio quality, the TM-V7A is equipped with a high-performance audio filter and variable bandwidth control. This allows operators to tailor the audio output based on the conditions of the band and personal preferences, improving clarity and intelligibility during conversations.

The transceiver is also designed with user-friendly navigation. The intuitive menu system enables easy access to settings and configurations, allowing operators of all experience levels to operate the radio effectively. Customization options further enhance user experience, with programmable memories allowing operators to save frequently used frequencies and settings.

The Kenwood TM-V7A’s rugged build quality ensures durability, making it suitable for both home and field operations. Its compact design allows for easy installation in vehicles or portable setups, making it an excellent choice for both casual users and serious amateur radio operators. Overall, the Kenwood TM-V7A stands out as a feature-rich transceiver capable of meeting the diverse needs of the amateur radio community, combining advanced technology with practical functionality.