REPLACING FUSES

If the fuse blows, determine the cause, then correct the problem. After the problem is resolved, replace the fuse. If newly installed fuses continue to blow, disconnect the power cable and contact your authorized KENWOOD dealer or an authorized KENWOOD service center for assistance.

ANTENNA CONNECTION

Before operating, install an efficient, well-tuned antenna.

The success of your installation will depend largely on 1 the type of antenna and its correct installation. The transceiver can give excellent results if the antenna system and its installation are given careful attention.

Use a 50 impedance antenna and low-loss coaxial feed line that has a characteristic impedance of 50 , to match the transceiver input impedance. Coupling the antenna to the transceiver via feed lines having an impedance other than 50 reduces the efficiency of the antenna system and can cause interference to nearby broadcast television receivers, radio receivers, and other electronic equipment.

Note: E market models use an N-type antenna connector while other models use an M-type (SO-239) connector.

 

Fuse Location

Fuse Current Rating

 

 

 

 

 

 

Transceiver

15 A

 

 

 

 

 

 

Supplied Accessory

20 A

 

DC Power Cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only use fuses of the specified type and rating; otherwise the transceiver could be damaged.

Note: If you use the transceiver for a long period when the vehicle battery is not fully charged, or when the engine is OFF, the battery may become discharged, and will not have sufficient reserves to start the vehicle. Avoid using the transceiver under these conditions.

Transmitting without first connecting an antenna or other matched load may damage the transceiver. Always connect the antenna to the transceiver before transmitting.

All fixed stations should be equipped with a lightning arrester to reduce the risk of fire, electric shock, and transceiver damage.

Antenna connector

To antenna

Feed line connector

5

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Kenwood TM-271A, TM-271E instruction manual Antenna Connection, Fuse Location Fuse Current Rating

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.