FTM-7250DR
Operating Manual
VHF/UHF DIGITAL/ANALOG TRANSCEIVER
C4FM/FM
Contents |
|
Safety Precautions (Be Sure to Read)..................... |
1 |
FTM-7250DR Quick Reference Guide...................... |
3 |
Introduction............................................................... |
4 |
Features of this radio............................................... |
4 |
Accessories & Options............................................. |
5 |
Supplied Accessories............................................... |
5 |
Optional Accessories................................................ |
5 |
Installation................................................................. |
6 |
Connecting the Microphone..................................... |
6 |
Connecting the Antenna........................................... |
6 |
Mobile Installation.................................................... |
6 |
Power connection.................................................. |
7 |
Front Panel Controls & Switches............................ |
8 |
Front Panel............................................................... |
8 |
Rear Panel Connectors........................................... |
10 |
Rear Panel............................................................. |
10 |
Microphone Switches............................................. |
11 |
Microphone (MH-48A6JA)....................................... |
11 |
Basic Operation....................................................... |
12 |
Turning the Transceiver ON and OFF.................... |
12 |
Inputting the call sign............................................. |
12 |
Adjusting the Audio Volume Level.......................... |
12 |
Adjusting the Squelch Setting................................ |
12 |
Selecting a Frequency Band.................................. |
13 |
Frequency Navigation............................................ |
13 |
Using the Dial...................................................... |
13 |
Using the MH-48A6JA Microphone..................... |
13 |
Channel Step Selection.......................................... |
13 |
Selecting the communication mode....................... |
14 |
Setting the transmission mode |
|
when using the AMS function.............................. |
15 |
Transmission.......................................................... |
16 |
Adjusting the transmit power............................... |
17 |
Lock Feature.......................................................... |
17 |
Advanced Operation............................................... |
18 |
About the Digital Group ID (DG-ID) feature........... |
18 |
Register the DG-ID number in the |
|
DG-ID memory.................................................... |
19 |
Recall and use the DG-ID number registered |
|
in the DG-ID memory.......................................... |
20 |
Digital Personal ID (DP-ID) feature........................ |
21 |
Registering the DP-ID to a DR-2X |
|
digital repeater..................................................... |
21 |
Register the transceivers..................................... |
22 |
Deleting the registered DP-ID............................. |
23 |
Repeater Operation................................................ |
24 |
Checking the Repeater Uplink (Input) |
|
Frequency........................................................... |
24 |
Tone Calling (1750 Hz)........................................ |
24 |
Weather Broadcast Reception (USA version only).... |
25 |
Severe Weather Alert Feature............................. |
25 |
Memory Operation.................................................. |
26 |
Memory Storage..................................................... |
26 |
Split Memory....................................................... |
27 |
Memory Recall....................................................... |
27 |
Memory Recall from the Microphone Keypad..... |
27 |
Moving Memory Data to the VFO..................... |
28 |
Memory Only Mode............................................. |
28 |
Masking Memories................................................. |
28 |
Unmasking Memories.......................................... |
28 |
HOME Channel Memory........................................ |
29 |
Changing the frequency of the home channel.... |
29 |
Scanning.................................................................. |
30 |
Basic Scanner Operation....................................... |
30 |
Scan Resume Options........................................ |
30 |
Memory Skip Scanning....................................... |
30 |
Preferential Memory Scan................................... |
30 |
Programmable Memory Scan (PMS).................. |
30 |
Priority Channel Scanning (Dual Watch)............. |
30 |
GM Function............................................................ |
31 |
What is the GM (Group Monitor) Function?........... |
31 |
Displaying all the stations using the |
|
GM function......................................................... |
31 |
Reset Procedure/Clone........................................... |
32 |
Reset Procedure.................................................... |
32 |
Microprocessor Resetting.................................... |
32 |
Setup (Menu) Mode Resetting............................ |
32 |
Clone...................................................................... |
32 |
Connecting the WIRES-X feature........................... |
33 |
What is WIRES-X?................................................. |
33 |
Connecting to a WIRES-X digital node |
|
(Recommended)................................................. |
33 |
Connecting to the other node ID or the |
|
other room ID...................................................... |
33 |
Connect and communicate with WIRES-X |
|
in analog mode.................................................... |
36 |
Disconnecting from the node or room................. |
36 |
Miscellaneous Settings.......................................... |
37 |
Tone squelch feature.............................................. |
37 |
Digital Code squelch (DCS) feature....................... |
37 |
Programming the Key Assignments....................... |
37 |
MIC Gain Setting.................................................... |
38 |
Split Tone Operation............................................... |
38 |
DTMF Operation.................................................... |
38 |
Setup (Menu) Mode................................................. |
39 |
Maintenance............................................................ |
42 |
Care and maintenance........................................... |
42 |
Replacing the fuse................................................. |
42 |
Specifications.......................................................... |
43 |
Be sure to read these important precautions, and use this product safely.
Yaesu is not liable for any failures or problems caused by the use or misuse of this product by the purchaser or any third party. Also, Yaesu is not liable for damages caused through the use of this product by the purchaser or any third party, except in cases where ordered to pay damages under the laws.
Types and meanings of the marks
DANGER |
This mark indicates an imminently hazardous situation, which, if not |
avoided, could result in death or serious injury. |
|
WARNING |
This mark indicates a potentially hazardous situation, which, if not |
avoided, could result in death or serious injury. |
|
CAUTION |
This mark indicates a potentially hazardous situation, which, if not avoided, |
may result in minor or moderate injury or only property damage. |
Types and meanings of symbols
These symbols signify prohibited actions, which must not be done to use this product safely. For example: indicates that the product should not be disassembled.
These symbols signify required actions, which must be done to use this product safely. For example,: indicates that the power plug should be disconnected.
DANGER
Do not use the device in “regions or aircrafts and vehicles where its use is prohibited” such as in hospitals and airplanes.
This may exert an impact on electronic and medical devices.
Do not use this product while driving or riding a motorbike. This may result in accidents.
Make sure to stop the car in a safe location first before use if the device is going to be used by the driver.
Do not operate the device when flammable gas is generated.
Doing so may result in fire and explosion.
Never touch the antenna during transmission.
This may result in injury, electric shock and equipment failure.
Do not transmit in crowded places in consideration of people who are fitted with medical devices such as heart pacemakers.
Electromagnetic waves from the device may affect the medical device, resulting in accidents caused by malfunctions.
When an alarm goes off with the external antenna connected, cut off the power supply to this radio immediately and disconnect the external antenna from this radio.
If not, this may result in fire, electric shock and equipment failure.
Do not touch any liquid leaking from the liquid display with your bare hands.
There is a risk of chemical burns occurring when the liquid comes into contact with the skin or gets into the eyes. In this case, seek medical treatment immediately.
WARNING
Do not use voltages other than the specified power supply voltage.
Doing so may result in fire and electric shock.
Do not transmit continuously for long periods of time.
This may cause the temperature of the main body to rise and result in burns and failures due to overheating.
Do not dismantle or modify the device.
This may result in injury, electric shock and equipment failure.
Do not handle the power plug and connector etc. with wet hands. Also do not plug and unplug the power plug with wet hands.
This may result in injury, liquid leak, electric shock and equipment failure.
When smoke or strange odors are emitted from the radio, turn off the power and disconnect the power cord from the socket.
This may result in fire, liquid leak, overheating, damage, ignition and equipment failure. Please contact our company amateur customer support or the retail store where you purchased the device.
Keep the power plug pins and the surrounding areas clean at all times.
This may result in fire, liquid leak, overheating, breakage, ignition etc.
Disconnect the power cord and connection cables before incorporating items sold separately and replacing the fuse.
This may result in fire, electric shock and equipment failure.
1
Safety Precautions (Be Sure to Read)
Never cut off the fuse holder of the DC power cord.
This may cause short-circuiting and result in ignition and fire.
Do not use fuses other than those specified.
Doing so may result in fire and equipment failure.
Do not allow metallic objects such as wires and water to get inside the product.
This may result in fire, electric shock and equipment failure.
Do not place the device in areas that may get wet easily (e.g. near a humidifier).
This may result in fire, electric shock and equipment failure.
When connecting a DC power cord, pay due care not to mix up the positive and negative polarities.
This may result in fire, electric shock and equipment failure.
Do not use DC power cords other than the one enclosed or specified.
This may result in fire, electric shock and equipment failure.
Do not bend, twist, pull, heat and modify the power cord and connection cables in an unreasonable manner.
This may cut or damage the cables and result in fire, electric shock and equipment failure.
Do not pull the cable when plugging and unplugging the power cord and connection cables.
Please hold the plug or connector when unplugging. If not, this may result in fire, electric shock and equipment failure.
Refrain from using headphones and earphones at a loud volume.
Continuous exposure to loud volumes may result in hearing impairment.
Do not use the device when the power cord and connection cables are damaged, and when the DC power connector cannot be plugged in tightly.
Please contact our company amateur customer support or the retail store where you purchased the device as this may result in fire, electric shock and equipment failure.
Follow the instructions given when installing items sold separately and replacing the fuse.
This may result in fire, electric shock and equipment failure.
Do not use the device when the alarm goes off.
For safety reasons, please pull the power plug of the DC power equipment connected to the product out of the AC socket.
Never touch the antenna as well. This may result in fire, electric shock and equipment failure due to thunder.
CAUTION
Do not place this device near a heating instrument or in a location exposed to direct sunlight.
This may result in deformation and discoloration.
Do not place this device in a location where there is a lot of dust and humidity.
Doing so may result in fire and equipment failure.
Stay as far away from the antenna as possible during transmission.
Long-term exposure to electromagnetic radiation may have a negative effect on the human body.
Do not wipe the case using thinner and benzene etc.
Please use a soft and dry piece of cloth to wipe away the stains on the case.
Keep out of the reach of small children.
If not, this may result in injuries to children.
Do not put heavy objects on top of the power cord and connection cables.
This may damage the power cord and connection cables, resulting in fire and electric shock.
Do not transmit near the television and radio.
This may result in electromagnetic interference.
For safety reasons, switch off the power and pull out the DC power cord connected to the DC power connector when the device is not going to be used for a long period of time.
If not, this may result in fire and overheating.
When using the device in a hybrid car or fu- el-saving car, make sure to check with the car manufacturer before using.
The device may not be able to receive transmissions normally due to the influence of noises from the electrical devices (inverters etc.) fitted in the car.
Do not throw or subject the device to strong impact forces.
This may result in equipment failure.
Do not the put this device near magnetic cards and video tapes.
The data in the cash card and video tape etc. may be erased.
Do not turn on the volume too high when using a headphone or earphone.
This may result in hearing impairment.
Do not use optional products other than those specified by our company.
If not, this may result in equipment failure.
Do not place the device on an unsteady or sloping surface, or in a location where there is a lot of vibration.
The device may fall over or drop, resulting in fire, injury and equipment failure.
Do not stand on top of the product, and do not place heavy objects on top or insert objects inside it.
If not, this may result in equipment failure.
Do not use a microphone other than those specified when connecting a microphone to the device.
If not, this may result in equipment failure.
Do not touch the heat radiating parts.
When used for a long period of time, the temperature of the heat radiating parts will get higher, resulting in burns when touched.
Do not open the case of the product except when replacing the fuse and when installing items sold separately.
This may result in injury, electric shock and equipment failure.
2
VOL Knob |
Frequency DIAL Knob |
Adjusts the audio |
Selects the operating Frequency. |
volume level. |
|
Power Switch
Press and hold for one second.
Transmission Switch
Speak into the microphone in
a normal voice level while Microphone pressing this switch.
MIC
|
ABC |
DEF |
|
LOCK |
1 |
2 |
3 |
A |
|
GHI |
JKL |
MNO |
|
|
4 5 6
PQRS TUV WXYZ
7 8 9
|
0 |
P1 |
P3 |
|
P2 |
B
C |
LAMP |
D
P4
DTMF MICROPHONE
MH-48
3
144/430 MHz dual band mobile radio, equipped with a C4FM communication modem.
50 Watts of power output, with selection of three power levels for every operating situation.
Clear audio and data communication is achieved using the C4FM modem functions.
Expanded receiver coverage: 108.000 MHz - 579.995 MHz.
With the GD-ID (Digital Group ID) feature, the Group Monitor (GM) feature enables automatically locating, and communicating with other stations that have the same DG-ID number within contact range, by utilizing a matching group ID number from 00 to 99.
The Digital Personal ID (DP-ID) feature supports communication specifically with transceivers registered with the individual ID information. The DP-ID is different for each transceiver and is included in each C4FM transmission.
Easily connect with the WIRES-X linking system.
Keyboard entry of operating frequencies from the microphone.
225 memories (199 “basic” memory channels, 10 sets of band-edge memory channels, and 6 “Home” channel) which can store repeater shifts, odd repeater shifts, CTCSS/ DCS tones, and 8-character Alpha-Numeric labels for easy channel recognition.
Built-in CTCSS and DCS Encoder/Decoder circuits.
Extensive Menu system, which allows customization of a number of transceiver performance characteristics.
Equipped with the GM (Group Monitor) function.
Additional features include a transmit Time-Out-Timer (TOT), Automatic Power-Off (APO), and Automatic Repeater Shift (ARS). Also included is an RF Squelch circuit that allows the owner to set the squelch to open at a programmed setting of the S-Meter, thus reducing guesswork in setting the squelch threshold.
Congratulations on your purchase of the FTM-7250DR! Whether this is your first rig, or if Yaesu equipment is already the backbone of your station, the Yaesu organization is committed to ensuring your enjoyment of this high-performance transceiver. It should provide you with many years of satisfying operation. Our dealer network and technical support personnel stand behind every product we sell, and we invite you to contact us should you require technical advice or assistance.
We recommend that you read this manual in its entirety prior to installing the FTM7250DR, so that you fully understand the capabilities of your new transceiver.
4
DTMF Microphone |
|
Mobile Mounting Bracket |
|
USB cable |
MH-48A6JA |
|
(Attachment screw set) |
|
|
|
|
|
|
|
|
|
|
|
|
DC power cable |
DC power cable |
Spare fuse (15 A) |
(with fuse attached) |
(with fuse attached) |
(USA, Asian version) |
(USA, Asian version) |
(European version) |
|
|
Operating Manual (this manual) |
|
|
|
|
|
|
|
Spare fuse (15 A) (European version)
MH-42C6J MH-48A6JA MLS-100 FP-1030A FP-1023
Microphone
DTMF Microphone (Same as the one provided) High-Power External Speaker
AC Power Supply (25 A) (USA and Asian market only) AC Power Supply (23 A) (USA market only)
5
Connect the supplied MH-48A6JA microphone to the FTM-7250DR.
Plug the microphone connector into the MIC jack on the front panel until it clicks.
Note: When disconnecting the microphone, pull the cable while pressing the connector latch.
|
|
|
MIC |
|
|
|
ABC |
DEF |
|
LOCK |
|
1 |
2 |
|
3 |
A |
|
GHI |
JKL |
MNO |
|
|
|
4 |
5 |
|
6 |
B |
LAMP |
7 |
8 |
|
9 |
C |
|
PQRS |
TUV |
WXYZ |
|
|
|
|
0 |
|
|
D |
|
P1 |
|
|
P3 |
P4 |
|
Microphone |
DTMF |
MH-48 |
|
|
|
|
P2 |
|
|
|
|
MICROPHONE
Connector
Connect the coaxial cable to the body.
Plug the coaxial cable jack into the ANT terminal on the rear panel of the body, then rotate and tighten it.
Coaxial cable plug
The FTM-7250DR must only be installed in vehicles having a 13.8 Volt negative ground electrical system. Mount the transceiver where the display, controls, and microphone are easily accessi-
ble, using the supplied mounting bracket.
The transceiver may be installed in almost any location, but should not be positioned near a heating vent nor anywhere where it might interfere with driving (either visual-
ly or mechanically).
Make sure to provide plenty of space on all sides of the transceiver so that air can flow freely around the radio’s case. Refer to the diagrams showing proper installation procedures.
6
Installation
To minimize voltage drop and avoid blowing the vehicle’s fuses, connect the supplied DC power cable directly to the battery terminals. Do not attempt to defeat or bypass the DC cable fuse - it is there to protect you, your transceiver, and your vehicle’s electrical system.
Operation of the FTM-7250DR from an AC line requires a power source capable of providing at least 20 Amps continuously at 13.8 Volts DC. The FP-1023 (USA market only) and FP-1030A (USA/Asian market only) AC Power Supplies are available from your Yaesu dealer to satisfy these requirements. Other well-regulated power supplies may be used as well, if they meet the above voltage and current specifications.
Warning!
•Never apply AC power to the power cable of the FTM-7250DR, nor DC voltage greater than 15.8 Volts. When replacing the fuse, only use a 15 A fuse. Failure to observe these safety precautions will void the Limited Warranty on this product.
•Do not use a DC power supply cable other than the one that is supplied or specified.
•Do not place anything on the DC power supply cable or step on it.
•Do not use the DC power supply cable with the fuse holder cut off.
•Do not reverse the polarity (positive and negative) when connecting the battery.
ρConnect the RED power cable lead to the POSITIVE (+) terminal, and the BLACK power cable lead to the NEGATIVE (–) terminal. If you need to extend the power cable, use #12 AWG or larger insulated, stranded copper wire. Solder the splice connections carefully, and wrap the connections thoroughly with insulating electrical tape.
Power cable (DC 13.8 V)
Power cable (DC 13.8 V)
Fuse holder |
DC power supply |
|
cable (supplied) |
Black
Red |
|
|
DC 12 V battery |
|
|
Fuse holder |
Direct current |
|
Black |
||
power supply |
||
|
DC power supply cable (supplied)
Rear panel |
Red |
|
|
|
AC power outlet |
7
|
|
|
|
VOL knob
Turning the knob clockwise increases the volume, whereas turning it counterclockwise decreases the volume.
Mode/Status indicator
Indicates the transmission/reception status with a two-color combination on the upper and lower portions of the mode/status indicator.
Communication status |
Upper portion |
Lower portion |
||
Receiving analog audio |
|
Green |
Green |
|
Transmitting analog audio |
Red |
Red |
||
Receiving digital audio |
|
Green |
Blue |
|
Transmitting digital audio |
|
Red |
Blue |
|
Receiving digital data |
|
Green |
White |
|
Receiving signals with unmatched audio or data conditionsø |
Green |
Blink in Blue |
||
|
|
The other station is within the com- |
|
Light Blue |
GM function during |
|
munication range |
|
|
|
- |
|
||
|
Transmitting GM confirmation sig- |
|
||
operation |
|
|
||
|
nal to the other station within the |
|
Blue |
|
|
|
|
||
|
|
communication range |
|
|
ø• Receiving signals with unmatched tone frequency or DCS code.
•Receiving analog audio in digital mode.
•Receiving signals with unmatched DG-ID in digital mode.
•Receiving a signal level less than the RF Squelch S-meter level setting.
DIAL Knob
• Allows setting the operating band frequency.
Turning clockwise increases the frequency, whereas turning counterclockwise decreases the frequency.
• Allows selecting the desired items for setup, memory registration, group monitoring operation, etc.
MIC Jack
Connect the provided microphone cable.
8
Front Panel Controls & Switches
[BAND(SQL)] key
A brief press of this key moves operation to the next-highest frequency band. Press and hold in this key to adjusted the squelch level.
[GM(AMS)] key
Pressing this key to activate the GM (Group Monitor) function.
Press and hold this key to display the transmit mode setting when using the AMS function.
[MODE(DG-ID)] key
Briefly pressing each time switches the operating band communication mode.
Press and hold in this key to select the DG-ID number registered in the DG-ID memory. Note: For details, see “Recall and use the DG-ID number registered in the DG-ID
memory” on 20.
[MHz(SETUP)] key
This key allows tuning in 1 MHz steps (the MHz digits will blink on the display). Press and hold this key to activate the Setup (Menu) Mode.
[V/M(MW)] key
Pressing this key briefly, switches between VFO mode, memory mode, and HOME channel.
Press and hold the key to display the memory registration screen.
Power/Lock key
Press and hold in this key to switch the power between ON and OFF. Briefly pressing the key while the transceiver is turned ON engages or releases the key lock.
Speaker
The internal speaker is located here.
LCD Display
The main digits on the display may show the operating frequency, memory name, or any of many parameters during Menu setup.
CTCSS/DCS/EPCS Bell Paging |
Lock Feature Active |
||
DCS (Digital Code Squelch) |
AMS Function |
||
CTCSS |
DTMF Memory Mode |
||
(Continuous Tone Coded Squelch System) |
|||
Repeater Shift Direction |
|
|
SKIP/Preferential Scan Channel |
|
GM Feature Active |
HOME Channel |
Frequency/Message |
Memory mode |
|
|
Area |
Memory Channel Number |
|
GM Feature Communica- |
|
tion range indicator |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
Communication mode |
||||||||
|
|
Narrow Deviation |
||||||
LOW/MID TX Power Selected |
S and TX Power Meter |
9
Rear Panel |
|
|
|
|
|
ANT Coaxial Socket
This is the M-type coaxial connector to connect 144 MHz band and 430 MHz band antennas (50 ohms). Make sure the antenna is designed specifically for use on the operating frequency.
EXT SP Jack
This 2-contact 3.5-mm mini phone jack provides receiver audio output for an optional external speaker. The audio impedance is 4 Ohms, and the level varies according to the setting of the front panel VOL control. Inserting a plug into this jack disables audio from the transceiver’s internal speaker.
13.8 V DC Cable
Connect the provided DC power supply cable (with fuse attached).
DATA Jack
Use this jack when updating the firmware. When a new firmware update for the FTM7250DR is available, go to the YAESU website to download the programming data and update the FTM-7250DR to its newest state.
Cooling Fan
10
PTT Switch
Press this switch to transmit, and release it to receive.
KEY Pad Buttons
1 to 0: Enters the numerals.
*: Switches between VFO mode, Memory mode, and HOME channel.
#: Scans the programmed memory channels. A: Changes tuning to 1 MHz steps.
B: Changes the operating band. C: Adjusts the squelch level.
D: Changes the transmit power.
[P1] / [P2] keys
[P1] key
Press this key to recall the DG-ID memory.
MIC
|
|
ABC |
DEF |
|
LOCK |
|
|
|
|
|
|||||
|
1 |
2 |
3 |
A |
|
||
|
GHI |
JKL |
MNO |
|
|
|
|
4 |
5 |
6 |
B |
LAMP |
|
||
|
|||||||
|
7 |
8 |
9 |
C |
|||
|
PQRS |
TUV |
WXYZ |
|
|
|
|
|
|
0 |
|
D |
|
|
|
|
P1 |
|
P3 |
P4 |
|
|
|
|
|
P2 |
|
|
|
|
|
|
|
DTMF MICROPHONE |
|
|
|
||
|
|
MH-48 |
|
|
|
[P2] key
Press and hold this key to enter the DG-ID memory screen.
[P3] / [P4] keys
These two keys are user programmable, allowing quick access to features used often. The default functions are described below.
[P3] key (WIRES-X)
Press this key to activate the Wires-X feature.
[P4] key (WX CH / T CALL)
In the USA version, pressing this key activates the WX function.
In the European/Asian version, pressing this key activates T CALL (1750 Hz) for repeater access.
You can reprogram the [P3] and [P4] keys for other functions, if desired.
Note: For details, refer to the Advanced Manual (download from the Yaesu website).
MIC
Speak into this port during transmission.
[UP] / [DWN] keys
Press (or hold in) either of these keys to tune (or scan up or down) the operating frequency or through the memory channels. In many ways, these keys emulate the function of the (rotary) DIAL knob.
LOCK switch
This switch locks out the Microphone keys (except for the keypad and PTT switch).
LAMP switch
This switch illuminates the Microphone keypad.
11
1. To turn the transceiver ON, press and hold the PWR/LOCK key.
2. To turn the transceiver OFF, again press and hold the PWR/LOCK key.
You can compose any desired Opening Message (up to 8 characters) via Setup Menu Item “OPEN MSG 28” see 40 for details.
A screen requesting input of a call sign appears when turning the transceiver on for the first time, or after resetting the transceiver. The call sign is used to identify the transmitting station when communicating in digital mode.
1. Press the [V/M(MW)] key.
2. Rotate the DIAL knob to select characters, then press the [V/M(MW)].
By rotating the DIAL knob, you can switch the characters in the following order:
“space” à “-” à “/” à “0” to “9” à “A” to “Z”
•Up to 10 characters (alphanumeric characters including hyphen) can be entered.
•“space”, “-”, and “/” are not selectable for the first character.
3.Press and hold the [MHz(SETUP)] key to save the call sign and exit to normal operation.
Rotate the VOL knob to adjust the receiver volume.
Clock-wise rotation increases the audio output level.
1. Press and hold the [BAND(SQL)] key, then rotate the DAIL knob to select the Squelch level.
2. Press the [BAND(SQL)] key again.
Note: A special “RF Squelch” feature is provided on this radio. This feature allows setting the squelch so that only signals exceeding a certain S-meter level will open the squelch. For details, refer to the Advanced Manual (download from the Yaesu website).
12
Basic Operation
Press the [MHz(SETUP)] key to select the desired frequency band.
Frequency ranges for each frequency band are below:
|
AIR band |
|
144 MHz band |
|
Information |
|
Information |
|
430 MHz band |
|
Information |
|
|
|
|
radio band (1) |
|
radio band (2) |
|
|
radio band (3) |
|
|||
|
|
|
|
|
|
|
|
|
|
|||
|
108 - 137 MHz |
|
137 - 174 MHz |
|
174 - 222 MHz |
|
222 - 420 MHz |
|
420 - 470 MHz |
|
470 - 580MHz |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rotating the DIAL knob allows tuning in the pre-programmed steps. Clockwise rotation tunes the frequency upwards, whereas counterclockwise rotation tunes the frequency downwards.
rPress the [MHz(SETUP)] key momentarily, then rotate the DIAL knob, to change the frequency steps to 1 MHz per step.
Using the [UP] and [DWN] key: |
DWN |
Pressing [UP] momentarily, tunes the frequency |
UP |
|
|
upwards. Whereas pressing [DWN] momentarily |
Number |
tunes the frequency in the downward direction. |
keys |
|
Using the number keys:
Use the [0] to [9] number keys to directly input the frequency. There is no “decimal point” key on the MH48A6JA keypad. However, there is a short-cut for
frequencies ending in zero:
press the [#] key after the last non-zero digit.
Examples: To enter 446.520 MHz, press [4] à [4] à [6] à [5] à [2] à [0] To enter 446.000 MHz, press [4] à [4] à [6] à [#]
The frequency tuning step of the DIAL and the microphone [UP]/[DWN] keys can be changed.
Note: See Setup Menu Item “STEP 45” on 41
13