Kenwood TM-271A Support Question
Kenwood TM-271A Support Question
Find answers below for this question about Kenwood TM-271A.Need a Kenwood TM-271A manual? We have 1 online manual for this item!
Question posted by bfeltenb on April 24th, 2023
Tm-271a Tm-271 _ E What Is The Difference
I am interested in using TM-271A for digital operations. particularly Vara Fm. Winlink. I see in the manual that the tm-271E has a cable to hook up to a TNC. Does the -A have such a cable? If not how does the TM-271A do digital?For what it is worth I am trying to plan for Emergency management use without having seen the radios.
Current Answers
Answer #1: Posted by SonuKumar on April 24th, 2023 8:47 PM
SonuKumar
Member since:
May 9th, 2021 Points: 16,619,300
Member since:
May 9th, 2021 Points: 16,619,300
The Kenwood TM-271A is a VHF transceiver that is capable of operating in digital modes, including Vara FM and Winlink. However, unlike the TM-271E, it does not have a built-in TNC or a cable to connect to an external TNC.
To use the TM-271A for digital operations, you will need to connect it to an external TNC using a compatible cable. Kenwood offers an optional PG-5H cable for this purpose, which can be used to connect the radio to a variety of external TNCs. Alternatively, you can use a third-party cable that is compatible with the TM-271A.
Once the radio is connected to an external TNC, you can use digital modes like Vara FM and Winlink to send and receive messages. Just make sure that you configure the radio and TNC correctly for the specific digital mode you plan to use, and follow any applicable operating procedures for emergency management use.
Note that digital modes can be useful for emergency management operations, but they do require some additional setup and knowledge to use effectively. It may be helpful to practice using the radio and digital modes in a non-emergency setting before relying on them in an actual emergency.
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
Regards,
Sonu
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Related Kenwood TM-271A Manual Pages
User Manual - Page 1
INSTRUCTION MANUAL
144 MHz FM TRANSCEIVER VHF FM TRANSCEIVER
TM-271A
144 MHz FM TRANSCEIVER
TM-271E
TM-271
MENU
© B62-1804-00 (K,E,M2,M3,M4) 09 08 07 06 05 04 03 02 01 00
User Manual - Page 2
...manual to be a personal tutorial from other stations.
• Equipped with an easy-to-read large LCD with the model, refer to you will satisfy your transceiver.
TM-271A: 144 MHz FM Transceiver TM-271A: VHF FM Transceiver TM-271E: 144 MHz FM... the available operating frequencies within each time you for information on both voice and data communications. For accessories supplied with...
User Manual - Page 3
... not attempt to this equipment if an unauthorized change or modification is warmed using a heater on a circuit different from a cold location to Part 15 of headphones/headsets while driving on public roads. The user could lose the authority to operate this equipment may cause harmful interference unless the modifications are designed to provide...
User Manual - Page 4
... 1 WRITING CONVENTIONS FOLLOWED IN THIS MANUAL 1 CHAPTER 1 PREPARATION
MOBILE INSTALLATION 2 DC POWER CABLE CONNECTION 3
Mobile Operation 3 Fixed Station Operation 4 Replacing Fuses 5 ANTENNA CONNECTION 5 ACCESSORY CONNECTIONS 6 External Speaker 6 Microphone 6 PC Connection 6 CONNECTING TO A TNC (E MARKET MODELS ONLY) .... 7 CHAPTER 2 YOUR FIRST QSO CHAPTER 3 GETTING ACQUAINTED...
User Manual - Page 5
... SCAN 42 GROUP SCAN 42
CALL SCAN 43
PRIORITY SCAN 43 PROGRAMMING A PRIORITY CHANNEL 43 USING PRIORITY SCAN 44
MEMORY CHANNEL LOCKOUT 44
SCAN RESUME METHOD 45
CHAPTER 9 SELECTIVE CALL
1
... DCS CODE 48 4
DCS CODE ID SCAN 49
CHAPTER 10 DUAL TONE MULTI-FREQUENCY
5
(DTMF) FUNCTIONS MANUAL DIALING 50 6
DTMF MONITOR 50 DTMF TX HOLD 51 7
AUTOMATIC DIALER 51 STORING A DTMF NUMBER IN...
User Manual - Page 6
... SPEED 58 TUNE ENABLE 58 MICROPHONE PF KEYS (KEYPAD MODELS ONLY) ...... 59 NARROW BAND FM OPERATION 60 POWER-ON MESSAGE 60 PROGRAMMABLE VFO 61 TIME-OUT TIMER 62 CHAPTER 12 MICROPHONE CONTROL MIC LOCK 64 CHAPTER 13 OPTIONAL ACCESSORIES CHAPTER 14 TROUBLESHOOTING MAINTENANCE 66 GENERAL INFORMATION 66 SERVICE 66 SERVICE NOTE 66 CLEANING...
User Manual - Page 7
... [ ] (Power Switch).
1 Accessory
Part Number Qty
Microphone
M2, M4 market (KMC-30)
K, E, M3 market (DTMF Mic)
T91-0624-XX 1
T91-0641-XX
DC power cable
K, M2, M3, M4 market
...-0395-XX 1
Warranty card (K, E market only)
-
1
Instruction manual
B62-1804-XX 1
WRITING CONVENTIONS FOLLOWED IN THIS MANUAL
The writing conventions described below .
With the transceiver power OFF, press ...
User Manual - Page 8
...screws (4) and flat washers (4).
• Double check that all hardware is in the vehicle using the 3 screw hole positions on the side of the mounting bracket are towards the rear of ... mm)
Spring washer
Flat washer
SEMS screw
• Determine the appropriate angle of the transceiver, using the supplied self-tapping screws (4), flat washers (4), and spring washers (4).
• The bracket ...
User Manual - Page 9
... of the cable must have a nominal rating of 12 V. MOBILE OPERATION
The vehicle battery must be installed with an insulator to prevent it from touching metal on the vehicle. • We recommend you do not use a 12 V vehicle battery that has sufficient current capacity. Fuse holder
3
Be sure to a 24 V battery. In particular, never...
User Manual - Page 11
..., electric shock, and transceiver damage.
ANTENNA CONNECTION
Before operating, install an efficient, well-tuned antenna.
Avoid using the transceiver under these conditions.
◆ Transmitting without ... stations should be damaged. Fuse Location
Transceiver Supplied Accessory
DC Power Cable
Fuse Current Rating 15 A 20 A
Only use fuses of the antenna system and can give excellent...
User Manual - Page 14
...transceiver ON. y Release Mic [PTT] to the 9 o'clock position. qw
TM-271
e
MENU
t y
q Press [ ] (Power) briefly to switch the transceiver... communication.
8 The various indicators and the current operating frequency appear on message appears momentarily. If you ...to give your transceiver a quick try?
2
Reading this manual.
The instructions below are
intended only as a quick guide...
User Manual - Page 15
...sections of this mode, you can change the operating frequency using the Tuning control or Mic [UP]/[DWN]. r VFO key
Press to recall the Call Channel {page 35}. q
w
TM-271
MENU
erty u
q (Power) switch/ Volume...for 1 second while in MR Mode to begin Call/ Memory Scan {page 43}. In this instruction manual. Press and hold for 1 second while in VFO Mode to begin MHz Scan {page 41} or...
User Manual - Page 20
...The higher the selected squelch level, the stronger the signals must be to receive. • 10 different levels can be to cancel the Monitor function.
ADJUSTING THE SQUELCH
The purpose of Squelch is to mute... OFF, press [ ] (Power) (1s). • When you turn the transceiver ON.
OPERATING BASICS
SWITCHING THE POWER ON/OFF
1 Press [ ] (Power) to a comfortable audio output level.
User Manual - Page 21
... clockwise to increase the frequency and counterclockwise to decrease the frequency, or use Mic [UP]/[DWN].
• Press and hold Mic [PTT] and... high pitched error beep sounds.
2 When you continuously transmit for changing the operating frequency. Note: If you finish speaking, release Mic [PTT]. The transceiver ...different power levels for a while, then press Mic [PTT] again to overheat.
User Manual - Page 30
...82.5 103.5 131.8 167.9 210.7
218.1 225.7 229.1 233.6 241.8 250.3 254.1
Note: 42 different tones are available for 2 seconds after having activated
the CTCSS/ DCS functions deactivates the CTCSS/ DCS functions. ...tone (default setting). Access Menu No. 20 (HLD) and select "ON".
◆ To use the Tone function and CTCSS/ DCS functions
6 simultaneously. Simply press [CALL] without pressing Mic...
User Manual - Page 42
... "WX" icon will not be recovered. ◆ The Weather Radio (AL) Channel can also transfer the AL Memory Channel data to use the Weather Alert function. The transceiver can store a different frequency to the AL channel to the VFO or another frequency.
Refer to the NOAA channel frequency directory for your local...
User Manual - Page 47
Otherwise, Band Scan starts {page 40}. Scan will operate between 145.000 and 145.9975 MHz (for example, select 145.650 MHz).
MHZ SCAN
MHz ... the pairs, the smaller Program Scan Memory Channel number has priority. ◆ If the step size of the current VFO frequency is different from that of the programmed frequencies, VFO Scan begins instead of Memory Channel L0/U0 ~ L2/U2. 2 Press [VFO] (1s...
User Manual - Page 52
...(not hear) unwanted calls from causing this case, use the CTCSS and Tone/ DCS functions
simultaneously. It ... function is equipped with CTCSS (Continuous Tone Coded Squelch System) and DCS (Digital Coded Squelch). CTCSS
A CTCSS tone is a sub-audible tone and is.... Received
TM-271
CTCSS freq.: 82.5 Hz
TM-271
9
CTCSS freq.: 82.5 Hz
Rejected Rejected
TM-271
CTCSS freq.: 100 Hz
TM-271
CTCSS OFF...
User Manual - Page 55
... turns ON automatically when performing DCS Code ID
Scan, even if the current frequency is not set with DCS. ◆ Received signals are using.
1 Press [F], [MENU] and turn the Tuning control to select Menu No. 4 (DCS).
2 Press [MENU] (1s) to start... 432 506 631 743 032 074 152 226 266 351 445 516 632 754 036 114 155 243 271 356 446 523 654 043 115 156 244 274 364 452 526 662 047 116 162 245 306 ...
User Manual - Page 71
... Cable
OPTIONAL ACCESSORIES
SP-50B Communications Speaker
MCP-1A Memory Control Program
(Free Software)
The MCP-1A can be downloaded at: http://www.kenwood.com/i/ products/info/amateur.html
PG-3B DC Line Noise Filter
PG-5A Data Cable (E market only)
Programming Cable
KMC-30 Microphone
KMC-32 DTMF Microphone
Although the key names differ...
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