Kenwood TM-271A, TM-271E instruction manual Automatic Repeater Offset, Market version only

Page 32

AUTOMATIC REPEATER OFFSET

This function automatically selects an offset direction, according to the frequency on the VHF band. The transceiver is programmed for an offset direction as shown below. To obtain an up-to-date band plan for repeater offset direction, contact your national Amateur Radio association.

K market version only

144.0

145.5

146.4

147.0

147.6

 

145.1

146.0

146.6

147.4

148.0 MHz

 

 

 

 

 

 

 

 

 

 

 

 

S

Ð

S

+

S

Ð

+

S

Ð

 

 

 

 

 

 

 

 

 

 

 

 

S: Simplex

This complies with the standard ARRL band plan.

E market version only

144.0

145.6 145.8 146.0 MHz

 

S

 

–

S

 

 

 

 

 

 

 

 

S: Simplex

 

 

 

 

Note: Automatic Repeater Offset does not function when the Reverse function is ON. However, pressing [REV] after Automatic Repeater Offset has selected an offset (split) status, exchanges the receive and transmit frequencies.

1Press [F], [MENU] and turn the Tuning control to select Menu No. 11 (ARO).

2Press [MENU] and turn the Tuning control to switch the function ÒONÓ (default) or ÒOFFÓ.

3Press [MENU] to store the setting or any other key to cancel.

4Press any key other than [MENU] to exit Menu Mode.

TRANSMITTING A 1750 Hz TONE

Call Channel default settings:

¥On E market models, pressing [CALL] causes the transceiver to transmit a 1750 Hz tone.

¥On K and M market models, pressing [CALL] changes the transceiver to the Call Channel {page 35}.

Most of the repeaters in Europe require the transceiver to transmit a 1750 Hz tone.

To change the setting of the CALL key:

1Press [F], [MENU] and turn the Tuning control to select Menu No. 19 (CK).

2 Press [MENU] and turn the Tuning control to select

6

ÒCALLÓ or Ò1750Ó.

 

3Press [MENU] to store the setting or any other key to cancel.

4Press any key other than [MENU] to exit Menu Mode.

Some repeaters in Europe must receive continuous signals for a certain period of time, following a 1750 Hz tone. This transceiver is also capable of remaining in the transmit mode for 2 seconds after transmitting the tone.

1Press [F], [MENU] and turn the Tuning control to select Menu No. 20 (HLD).

2Press [MENU] and turn the Tuning control to select ÒONÓ or ÒOFFÓ (default).

3Press [MENU] to store the setting or any other key to cancel.

4Press any key other than [MENU] to exit Menu Mode. 25

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Contents TM-271A Page Features Thank YOUModels Covered by this Manual Market CodesWhen condensation occurs inside the transceiver One or more of the following statements may be applicableContents MHz Scan IiiMicrophone Control Supplied Accessories Mobile Installation PreparationDC Power Cable Connection Fixed Station Operation Fuse Location Fuse Current Rating Transceiver 15 a Supplied Accessory 20 a DC Power CableAntenna Connection Accessory Connections Microphone hanger Microphone hanger screw 3 mm x 10 mmConnecting to a TNC E Market Models only Pin No Pin Name FunctionPress Power briefly to switch the transceiver power on Your First QSOGetting Acquainted Front PanelDisplay MR keyREV key KeyPage Rear Panel MicrophoneCALL/A key VFO/B keyMR/C key PF/D keySwitching the Power ON/OFF Adjusting the VolumeAdjusting the Squelch Operating BasicsTransmitting Selecting a Frequency VFO ModeWhen you finish speaking, release Mic PTT ¥ You must be in VFO mode to make a direct frequency entry Enter Mic VFO ExampleEnter Menu Setup What is a MENU?Menu Access Turn the Tuning control to select your desired MenuMenu Function Selections Default Display Menu Function ListTime-out Timer 10 min Power-on message Characters BeepTuning control lock Call key Varies see 25,35 ReferenceReset selection Data TX speed 1200/ 9600 bpsDisplay brightness Maximum level Automatic display brightnessOperating Through Repeaters Offset Programming FlowProgramming AN Offset Tone Frequencies Hz Available Tone FrequenciesTo activate Tone, press F, Call Market version only Call Channel default settingsAutomatic Repeater Offset Reverse Function Automatic Simplex Check ASCTone Frequency ID Scan Pressing PTT causes the Ò Ó icon to quit blinkingMemory Channels Number of Memory ChannelsSimplex & Repeater or ODD-SPLIT Memory CHANNEL? Odd-split channels allowYes DCS code Data listed below can be stored in each Memory ChannelParameter Simplex Odd-Split Recalling a Memory Channel Press MR 1sClearing a Memory Channel Press MR to erase the channel dataPress MR Naming a Memory ChannelPress Menu Mic UP /DWN Memory Channel TransferPress F, VFO to copy the Memory Channel data to the VFO Channel 0 ~ Call Channel Press Call to recall the Call ChannelWeather Alert K Market Models only WX1 WX2 WX3 WX4 WX5 WX6 WX7Channel Display Page Scans the Call Channel ScanScan Type Purpose Storing a Program Scan Frequency Range Turn the Tuning control or press Mic UP/DWNNormal Scan Press any key other than F or Power to stop Program Scan Press any key other than F or Power to stop MHz ScanPerforming Program Scan Press MR to store the end frequency in the Memory ChannelPress any key other than F or Power to stop Group Scan Memory ScanPress Menu 1s ChannelsPress any key other than F or Power to stop Call Scan Call ScanPriority Scan Press Call 1s to start the Call ScanMemory Channel Lockout Icon disappearsTime-Operated Mode default Carrier-Operated ModeSeek Mode Scan Resume MethodSelective Call Ctcss and DCSCtcss RejectedAvailable Ctcss Tone Frequencies DCS CtcssDCS Code ID Scan DCS CodesDual Tone MULTI-FREQUENCY Dtmf Functions Manual DialingDtmf Monitor Freq. Hz 1209 1336 1477 1633Turn the Tuning control to select a Dtmf code Dtmf TX HoldAutomatic Dialer Press MenuRelease Mic PTT Press REV10 4 Press any key other than REV or Menu to exit Dtmf Lock APO Auto Power OFF Auxiliary FunctionsBeat Shift Meter SquelchBeep Function ÒoffóBusy Channel Lockout Frequency Step SizeDefault step size for each model is as follows Display BacklightMarket Code KHzTune Enable Lock FunctionData Communication Speed Press F 1sMicrophone PF Keys Keypad Models only Programmable FunctionsPOWER-ON Message Narrow Band FM OperationPress MR to move to the next digit Turn the Tuning control to select a characterProgrammable VFO TIME-OUT Timer Microphone Control Key RX Mode TX ModeStoring Power-on Space MIC LockKey PS-33/53 SP-50B KMC-30 KMC-32 MC-60AKPG-46 MCP-1A can be downloaded atTroubleshooting MaintenanceResetting the Transceiver Full Reset MethodWith the transceiver power OFF, press F+ Power Press F again to reset the transceiverVFO Reset VFO Reset MethodWith the transceiver power OFF, press VFO+ Power Press VFO again to reset the transceiverTroubleshooting Problem Probable Cause Corrective Action PTTSpecifications GeneralTransmitter Narrow 0.22 ∝V or less

TM-271A, TM-271E specifications

The Kenwood TM-271A and TM-271E are robust dual-band transceivers designed for amateur radio enthusiasts looking for reliability, functionality, and ease of use. Both models operate in the VHF and UHF bands, specifically covering 144-148 MHz and 430-450 MHz, respectively. This versatility allows users to communicate across varied frequencies, making them suitable for a wide range of applications, from casual conversations to emergency communications.

One of the standout features of the TM-271A and TM-271E is their compact size, making them an ideal choice for mobile operations. Despite their small footprint, these radios pack a punch with a maximum transmit power of 50 watts in the VHF band and 35 watts in the UHF band. This power output ensures clear and effective communication over long distances, essential for outdoor activities and emergency situations.

The user-friendly interface of the TM-271 models includes a large, backlit LCD display, which provides clear visibility in various lighting conditions. The controls are intuitively arranged, allowing users to navigate functions with ease. Moreover, both models come equipped with an alphanumeric memory, allowing for the storage of up to 200 memories for easy access to frequently used frequencies.

Advanced features such as a built-in CTCSS (Continuous Tone-Coded Squelch System) and DCS (Digital Coded Squelch) enhance communication clarity by minimizing unwanted noise and ensuring that only desired signals are received. The TM-271A and TM-271E also support a wide range of modulation modes, including FM, allowing versatility in communication styles.

In terms of durability and build quality, the Kenwood TM-271 series excels with a rugged design that withstands the rigors of mobile use. The units are also equipped with a front-facing speaker that delivers excellent audio quality, ensuring clear communications even in noisy environments.

Another notable feature is the wideband reception capability, allowing users to listen to signals outside of the amateur bands, making these transceivers more versatile for everyday monitoring of public safety channels and other broadcasts. Furthermore, the inclusion of a built-in diagnostic function aids users in troubleshooting, ensuring that the radio remains in optimal working condition.

In conclusion, the Kenwood TM-271A and TM-271E are outstanding choices for amateur radio operators seeking a powerful, feature-rich, and user-friendly dual-band transceiver. Their combination of advanced technology, compact design, and rugged reliability makes them a popular choice among both novice and experienced operators in the radio community.
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