Kenwood TM-451A User Manual Page 100
- Page / 130
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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PACKET OPERATION
One of the most exciting benefits of owning an FM
transceiver nowadays is the ability to use it for VHF or
UHF Packet radio. TM-251/451 transceivers are ideal,
due to their small size, for operating Packet portable
from a local mountaintop, for example, even if the
transceiver is not permanently mounted as a mobile in
your vehicle.
By using a small laptop computer to control any of the
widely available Terminal Node Controllers (TNC), and
interfacing the TNC to your transceiver via the DATA
connector, you may be surprised at how compact and
lightweight a digital station can be. Operating Packet
while on the road from a campsite or hotel can be a
great way to meet others with common interests when in
a new area or city. Newcomers to digital
communications will be surprised to discover what they
have been missing.
Similarly, by connecting a home computer or dumb
terminal to your TNC/transceiver assembly, you can
become active on Packet with little further monetary
investment. Connecting to one of the many stations with
gateways to HF or satellite links can give you national
and worldwide messaging capability from your station
with nothing more than your VHF/UHF transceiver for the
communications link.
ENABLING THE DATA CONNECTOR
After connecting the necessary Packet station equipment
as explained in "ACCESSORY CONNECTIONS" on
page 9, you must enable the DATA connector and select
the correct baud rate before beginning to operate.
1 Press [REV] + POWER ON to enter Menu B.
2 Select Menu No. 57 {page 24}.
• The current DATA connector status appears.
3 Select a status.
• 1200: DATA connector enabled for 1200 bps
operation.
• 9600: DATA connector enabled for 9600 bps
operation.
• Default: 1200
4 Exit Menu B.
Note: When using 9600 bps, select only 5 kHz, 10 kHz, 15 kHz, or
20 kHz for the frequency step size.
93
- TM-251A/251E 1
- TM-451A/451E 1
- THANK YOU 3
- PRECAUTIONS 3
- CONTENTS 4
- FEATURES ACCESSORIES 8
- CONVENTIONS FOLLOWED IN THIS 9
- MOBILE INSTALLATION 10
- Installation Example 10
- DC POWER CABLE CONNECTION 11
- Dismantle fuse holder 12
- Passenger compartment 12
- ANTENNA CONNECTION 13
- DC POWER SUPPLY CONNECTION 14
- ACCESSORY CONNECTIONS 16
- DATA Connector Pinout 17
- GETTING ACQUAINTED 18
- YOUR FIRST QSO 19
- REAR PANEL 22
- MICROPHONE 23
- (D +v +u 24
- O O U C<Wg2 25
- Wm O O O O Wi 26
- ItldO.Cl.O OMB 26
- :0 O ': 27
- :Lh LUtot 28
- MENU SET-UP 29
- MENU A CONFIGURATION 30
- 350ms/550ms 350 ms 31
- CONFIRMATION BEFORE OPERATION 33
- FRONT PANEL 34
- RECEIVING 35
- \ \ 1 / / 36
- / / M \ “«f 36
- 1 S • 7 • OVCR 36
- BAND SELECT 37
- [FJ, [REV] 38
- MRF 1 » 38
- VFO MODE 39
- SELECTING FREQUENCIES 39
- ■ Tuning Control 39
- Programmable VFO 40
- Microphone [UP]/[DWN] Buttons 41
- FREQUENCY STEP SIZE 42
- TRANSMITTING 44
- Ki о К ft 45
- MEMORY CHANNELS 46
- I‘-I XO LI LI 47
- MRF 1 > 48
- 7 • OVER 48
- MEMORY VFO TRANSFERS 49
- ERASING MEMORY CHANNELS 50
- CALL CHANNEL 50
- CHANNEL DISPLAY FUNCTION 52
- INITIALIZING MEMORY 53
- Partial Reset (VFO) 53
- ■ Full Reset (Memory) 53
- I 1 • r • OVER 53
- OPERATING THROUGH REPEATERS 55
- SELECTING OFFSET DIRECTION 56
- AUTOMATIC TRANSMIT OFFSET 56
- SaRF 1357» OVER 57
- REVERSE FUNCTION 58
- TONE ACCESS 58
- Selecting a Tone Frequency 59
- S«RF 1 3 S 7 • OVER 59
- 1 S ■ 7 » OVER 60
- ^ C LI U 61
- C T» * n 62
- 1 S ■ 7 • OVER 64
- MEMORY SCAN 65
- Locking-Out Memory Channels 65
- BAND SCAN 66
- I 3 • 7 • OVER 67
- Using Programmable Band Scan 67
- CALL/VFO SCAN 68
- CALL/MEMORY SCAN 68
- AUXILIARY FUNCTIONS 69
- *’-/ I.J» Jr u 69
- 1 a • T • OVEN 70
- AUTOMATIC POWER OFF (APO) 70
- —caziE“ APo 70
- / / 1 w"/1 \ ^ 70
- BEEP TONE 71
- DISPLAY DIMMER 71
- DISPLAY MODE 72
- DISPLAY DEMONSTRATION MODE 73
- REMOTE CONTROL 74
- REMOTE FUNCTIONS USING 75
- MC-45DM/DME 75
- Configuring the PF Keys 77
- Monitor Function 77
- REMOTE FUNCTIONS USING TH-7 78
- KEYPAD DIRECT ENTRY 78
- ■ Frequency Entry 78
- MHz MHz kHz kHz kHz 79
- Memory Channel Entry 80
- 1 t • 7 • oven — / I 80
- USING CTCSS 81
- SELECTING CTCSS FREQUENCIES 81
- ACTIVATING DTSS 82
- 1 S ■ T • ОУСЙ 82
- MRF 1 Э I 7 • oven 83
- Э • 7 • OVER 83
- 1 > a 7 • OVER 84
- V Iv _ Cl I fj 85
- -vt Jl I-I 85
- OVERVIEW 86
- PAGE CODE MEMORY 86
- STORING PAGE CODES 86
- • tjtj о к 87
- * ■ 7 t OVEH 89
- PAGE ANSWER-BACK 90
- PAGE CODE AND REPEATERS 90
- LOCKING-OUT CODES 91
- AUTO PAGE CANCEL 91
- OPEN PAGE 92
- TONE ALERT 93
- CHANGING THE ALARM TONE 94
- 1 » • 7 • OVEM 94
- MESSAGE RECORDING 95
- SELECTING THE RECORDING MODE 96
- ■ 7 ■ oven 96
- PLAYBACK 97
- FULL DUPLEX OPERATION 98
- PACKET OPERATION 100
- MAINTENANCE 101
- SERVICE NOTE 102
- CLEANING 102
- TROUBLESHOOTING 103
- Continued 104
- OPTIONAL ACCESSORIES 109
- INSTALLING OPTIONS 111
- MEMORY UNIT 112
- SPECIFICATIONS 113
- Transmitter 114
- Receiver 114
- GLOSSARY 115
- Open Page 118
- Station Page code 120
- QUICK REFERENCE GUIDE 122
- A " - + Menu Set-up 50 127
- “ With CTCSS unit installed 130
- ^ Except [F] or [PWR] 130
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