HanRongDa HRD-747 Instruction Manual

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HanRongDa HRD-747
Operation Guidelines for Full-Band Radio Model:
FM/MW/SW/AIR/CB/VHF (UHF) /UBD/WX/
HAM WIDE FREQUENCE SCANNER Radio

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Contents
Packing List……………………………………………………………………………….
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Overview of HRD-747 wide frequency radio……………………………..
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Description of product buttons………………………………………………...
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Description of display symbols on the display screen………………..
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Operation cautions…………………………………………………………………..
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Instructions for button functions and operations………………………
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About orange backlight…………………………………………………………….
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Use of Antennas……………………………………………………………………….
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Main technical parameters.………………………………………………………
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Cautions ……………………………………………………….………………………….
34

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Thank you for purchasing the Digital Reconciliation Full-band Radio
(Model: HRD-747) from HonRongDa. It is an entry-level toy product for
radio lovers, and also the auxiliary product for cross-country activity
lovers (VHF/UHF Station reception). It can provide flight information
for those who often take planes. Please read this manual before you
use it and keep it well for referencing in the future.
Packing List
Name
Quantity
HRD-747radio
1
IN-EAR headset
1
BL5C lithium battery 1000mAh 3.7V
1
USB TYPE-C cable
1
Product manual
1
Arm hanging rope
1
Storage bag
1

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Overview of HRD-747 Wide Frequency Radio
This is a Wide Frequency radio with digital tuning: It can receive FM
(frequency modulation)/MW (medium wave)/SW(short wave) (short-
wave single-side with modulation mode)/SSB (Upper Sideband)/LSB
(Lower sideband)/AIR (Aircraft band)/CB (City band) /VHF(very-high
frequency band)/UHF (Ultra high frequency band)/UBD(us-er-defined
band)/WX(North American National Weather Band)
1. The product is compact and easy to carry.
2. Modern DSP digital demodulation technology is used to the full
band, which improves the receiving sensitivity, selectivity and
anti-mirror interference ability.
3. FM receiving range is 64MHz-108MHz. It is suitable for FM
broadcast reception and global FM radio reception.
4. The single slideband SSB and the lower slideband LSB of the
shortwave unilateral-band can receive signal independently.
5. Many kinds of station selection methods: Automatic search
storage station (ATS), manual search pre-stored station (VM) and
manual search for radio stations (VF).
6. It can display the radio address number; browse radio station
frequency automatically and browse the frequency of pre-stored
radio stations automatically; high speed scanning; shuttle tuning,
shuttle stepping setting (support 10Hz), adjustable design of
shuttle stepping digit (for select frequency quickly)
7. SET menu has the following advanced settings:
A. Adjustable antenna input attenuation controller circuit. ATT
B. Adjustable circuits of various bandwidth. BW
C. Adjustable silencing 9 level. SQ
D. De-emphasis selection in FM band mode DE

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E. The frequency of FM and AM bands can be set in many
countries.
8. Many step values of each wave band can be adjusted STEP
9. Celsius temperature/Fahrenheit can be displayed
10. Not only the automatic sleep time and automatic boot time can
be set, but also the lock and mute state can be set.
11. Receiving state can display the noise limit ratio and the receiver
sensitivity reference value.
12. The radio has a large memory space, so it can store up to 1000
radio frequencies. The product supports manual deletion of
memory stations.
13. External antenna 3.5mm input can be supported.
14. External speaker and 3.5mm headphone output can be used.
15. Built-in loudspeaker and within USB TYPE-C charging jack.
16. Removable BL5C lithium battery of 1000mAh and long battery
life can be used.
17. The backlight of the product is a warm orange light which can be
used in the night/dark areas.
Description of product buttons
At the top of the product:

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Front view:
Right view and back view of the product:

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Description of display symbols on the display
screen
MODUL: Modulation mode switching display
NFM: Narrowband FM mode
WFM: Broadband FM mode
AM: AM system
LSB: The lower sideband of a single sideband
USB: The upper band of a single sideband
STEREO: Stereo reception state in FM mode
MONO: FM mono receiving status
2MIX: Secondary frequency conversion display
BW: Bandwidth selection of each band
ATT: Adjustable gain attenuation controller circuit selection:
LOCAL,DX,NORMAL

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VOL: Volume adjustment (from 00 to 40)
SQ ON: Under silent receiving state
SQ OFF: Under the SQ off state
SNR: Signal Noise Ratio
PRESET: Pre-stored stations
STEP: Step value settings display
: Flying-shuttle step mark
dB: SNR and reception sensitivity unit
°C: Temperature Celsius
°F: Fahrenheit
: Thermometer
: Charging indication symbol
: Battery power display symbol
: Alarm setting display symbol
: Symbol to set sleep and shutoff time
: Locked state

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FM: Frequency modulation receiving mode
CB: City band receiving mode
MW: Medium wave receiving mode
SW: Short wave receiving mode
AIR: Aircraft band receiving mode
WX: Weather band receiving mode
VHF: Very High Frequency mode
UHF: Ultra-high frequency mode
UBD: Customized input frequency point mode
ALERT: Alarm display symbol
De-emphasis: 50uS / De-emphasis: 75Us: display
EXT-ANT: Indicator of external antenna
Operation Cautions
Before using this radio, please ensure that you can follow the
following basic safety tips so that the products can be used safely and
reliably.
•Read and understand all safety guidelines and usage information.
•The original lithium battery is recommended.

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•It is recommended to use a charging device with the output
voltage of DC5V/1A-3A to avoid damage to the lithium battery or
the device.
•When the lithium battery is not used for a long time, please take
it out and keep it separately. Charge it once a month.
•Do not expose the product to rain, moisture, drips or splashes of
any liquid.
•Do not keep the product near high temperature and heat source;
do not bake or blow it at high temperature.
•Do not expose the product to direct sunlight for a long time.
•Do not allow the product to fall or be hit. Do not apply heavy
pressure on it.
•Note: TV sets, computers, generators, electric motors and other
electrical equipment as well as other signal generators may also
interfere with signals received by the radio. Please keep a certain
distance from the above equipment when you use them.
•The antenna of the product is a seven-section telescopic antenna
(the exposed part is 56CM). It is relatively long. Please do not bend
it and break it.
Instructions for button functions and operations
1. Install the cell
Open the battery cover and insert BL5C lithium battery correctly
according to its positive and negative polarity and then cover the
battery cover. After installing the battery, press any key to start the
backlight and display the time. After installing the battery, the radio
backlight will be turn on and show the time status.

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2. [POWER] Power-ON/OFF/ Sleep time settings
2.1 Power ON/OFF function:
Time state, press lightly POWER button, radio on. When the radio on,
long press the POWER button, radio off.
2.2 Sleep time settings:
Time state: long press [POWER] for 2 seconds to display "90" minutes
and start the sleep function. then short press [POWER], you can
choose the sleep time for 90-80-70-60-50-40-30-20-10 minutes. After
the sleep time is set, LCD display will show
Note: the radio will turn off automatically to show
2.3 Enable SNR&RSSI function and time switch display
Radio working state: short press [POWER] to start SNR&RSSI function
and time switch display. This is a reference value for SNR and
receiving
sensitivity:
Time status:

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3. [Lock] Set the LOCK, unlock/mute operation
3.1 Setting locking and unlocking operations:
In the radio ON/OFF state, long press LOCK 2 seconds, it will display
. Then, all the buttons could not be operated. Long press [LOCK]
again for 2 seconds, when the symbol disappear, all buttons can
be operated.
3.2 Set the mute mode:
Radio on working state, short press [LOCK]. "VOL 00" symbol is
flashing, radio will enter the mute mode. In the mute state, short
press [LOCK]. Restore the current sound level, at this time mute
function is disabled.
4. External DC5V input power supply operation
When the battery symbol shows a space, please connect the charging
cable of Type-C (factory standard accessories TYPE-C USB cable) to
the DC5V power supply to power the radio input. During the charging
process, the battery symbol " "will keep flashing. After full charge,
the battery symbol stops flashing and displays full.

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5. 3,5mm headphone jack operation
Listening radio programs, you can use the radio itself loudspeaker.
And also a 3.5mm plug earphone. (Use a 3.5mm earphone to avoid
disturbing others).
6. Volume [VOL+/-]
Short press "[VOL+] and [VOL-]", the volume will increase or
decrease by 1 step according to the minimum step. Long press
"[VOL+] and [VOL-]" to increase and decrease the volume rapidly.
The adjustable volume range is 00-40 level.
7. [MEMO]: manually storage/ pick up station
operation
7.1 Manual storage operation method:
Adjust to the target frequency point by [TUN". "]
Long press [MEMO] for 2 seconds, the PRESET & "PX X X"symbol will
flash at the same time. PRESET is the preset station prompt, "P X X X"
is storage station address prompt)
Short press [MEMO], or press [TUN". "] also, to select the
frequency address.

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Short press [MEMO], LCD will display "S X X X" about 2 seconds,
indicating that the target frequency point has been saved to the
target memory number. Note: Each band can store 100 memory
stations.
7.2 Methods to pick up stations:
-You can either save station by the
7.2.1 method or long press the BAND to search the station
automatically.
Short press [MEMO], LCD will display "PRESET" and "P X X X".
Short press [TUN". "] to get the frequency point of the address
number of the target station, then you can get the broadcast radio
signal.
Note: If no operating within 3 seconds, it will exit selection operation.
7.2.2 Methods to pick up stations:
You can either save station by the 7.1 method or long press the BAND
to search the station automatically.
Short press [MEMO], LCD will display "PRESET" and "P X X X ".
Short press [TUN". "] to get the frequency point of the address
number of the target station, then you can get the broadcast radio
signal .
Note: If no operating within 3 seconds, it will exit selection operation.

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8. [TUN". "]: Time setting /select station
button
8.1 Operation for time settings:
Time display status: long press [SET] for 2 seconds, the hour number
will flash; short press [TUN". "] to SET the current hour. Tap [SET]
button, the minute number will flash. Short press [TUN". "] to SET
the current minute. Note: The hourly system of this machine is 24
hours.
8.2 Operation for alarm clock settings (automatic
boot):
Setting the current time by 8.1 method.
Tap [BAND], the alarm clock symbol will display.
Tap [BAND] again, the alarm clock symbol will disappear, alarm clock
time has been canceled.
Long press [SET] for 2 seconds,
Alarm hour number "X X" will flash. Short press [TUN". "] to set
the hour. Tap [SET], alarm minute number "X X" will flash. Short
press [TUN". "] to set the minute.
8.3 Operation of Station selection:
Under the power-on state: If radio have been storage station before,
short press [MEMO] to select station. LCD will have "PRESET"and"P X
X X"symbols. If need cancel the station selection operation, just short
press [MEMO] again. "PRESET"and"P X X X"symbols disappear.

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If you want to increase or decrease the radio station, just need to
press [TUN". "] button.
Long press [TUN". "], radio will enter the searching stations
function automatically. When signal were found, it will stop searching
to play the searched frequency points.
9. [BAND]: band switch/automatic search and
storage/ alarm clock on/off operation
9.1 Band Switch:
In startup state, press [BAND] to switch FM/MW (AM)/ SW/ AIR/ CB/
VHF (U H F)/ U BD/WX BAND
9.2 Automatic station search and storage:
Long press [BAND] to start the automatic scanning and station
storage function.
The machine will search from the lowest frequency point to the
highest frequency point in the current receiving band. -The radio will
automatically save the signal station to the radio memory station
number.
After completing a fully automatic search, the radio will play the first
station with the first station number.
During the automatic scanning, PRESET character and P X X X station
storage address number will flash all the time. The frequency point
will change incrementally in the process.

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Note: During the automatic scanning: press {BAND] or any other key
will stop searching station function. -During automatic station search
and storage, previous frequency points memorized will be updated.
9.3 Time state:
Short press the alarm clock to open/ close the time state (specific
operations are described in 8.2 Operation Introduction)
10. Operations for Step/Delete [STEP]
10.1 STEP operation:
In the power-on state, press [STEP] to set the STEP value
The following step options are available in all frequencies
1. FM stepping: 50.0KHZ,10.0KHZ,100.0KHZ.
2. AM frequency: 522-1710KHZ, stepping: 9.0KHZ, 3.0KHZ,
3. AM frequency: 520-1710KHZ, stepping: 10.0KHZ, 5.0KHZ.
4. SW stepping: 5.0KHZ, 1.00KHZ, 0.10KHZ, 0.02KHZ, 0.01KHZ.
5. AIR stepping: 25.0KHZ, 12.5KHZ, 8.3KHZ
6. CB stepping: 5.00KHZ, 1.00KHZ, 0.10KHZ, 0.02KHZ, 0.01KHZ
7. VHF/UHF&UBD step: 25.0KHZ, 12.5KHZ, 7.5KHZ, 5.0KHZ, 1.0KHZ
Once the step value is selected, the system will default to the last
selected step value. Press [TUN". "] to confirm the last selected
step value.
10.2 Delete station
In startup state, after manual station storage is done according to 7.1
or automatic station search and storage operation according to 9.2.

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Tap [MEMO] and "P X X X " the number of that storage station will
flash; short press [TUN". "] to pick up the station which you want
to delete. Next just long press [STEP] for two seconds. “DEL & E X X
X" flashes. Then, short press [STEP] to delete the station.
Within 5 seconds, press [STEP] to delete the next pre-set station.
If no operation within 5 seconds, PRESET "P X X X”flash, radio exit
the operation of deleting function.
11. Operation for menu/clock settings
11.1 Set time operation:
In the shutdown state, long press [SET] for two seconds and then
short press [SET] and short press ". " to start the clock setting
(refer to details in 8.1).
11.2 Set menu operation:
Under the power-on state, start functions of the main menu (refer to
Operation Introduction 14 for details)
11.3 Set Alert alarm:
In WX band, long press [SET] to activate ALERT alarm and the "SCAN"
symbol flashes. Long press [SET] again to exit the Alert function.
Note: SCAN indicates that WX is in the state of silent detection of
NOAA Alert state. If there is an Alert signal, sound or alarm will be
given out.

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12. Rotary [flying shuttle] button
Power-on state: Rotate the flying shuttle to adjust frequency display
bit values. When values are adjusted, the corresponding " "
flashes. Short press [STEP] to select the needed STEP value. Rotate
the flying shuttle to quickly select the desired frequency points.
13. Mode selection [MODE]
13.1 Menu and sub-menu:
In power-on state, press [SET] to start the main menu, short press
[MODE] to select the corresponding sub-menu functions.
13.2 Meter band function:
In short wave (SW) & Very-high frequency (VHF) & Aircraft (AIR)
band, non-menu mode; short press [MODE] key to switch meter
band functions.
13.2.1 Meter band function on SW:
In the short-wave (SW) receiving state, short press [MODE] to switch
the meter band, and the frequency points are:

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3.20000MHZ, 3.75000MHZ, 3.90000MHZ, 4.75000MHZ,
5.73000MHZ, 7.10000MHZ, 9.25000MHZ, 11.50000MHZ,
13.57000MHZ, 15.03000MHZ, 13.57000MHZ, 15.03000MHZ,
17.48000MHZ, 18.90000MHZ, 21.45000MHZ, 25.67000MHZ.
13.2.2 Meter band function on VHF/ UHF:
Short press very high frequency (VHF) and short press [MODE] to
switch meter band and the frequency points are:
VHF30.00MHZ, VHF136.00MHZ, VHF174.00MHZ, VHF220.00MHZ,
UHF409MHZ, UHF446.0620MHZ, UHF462.5620, UHF443.00
13.2.3 Meter band function on Air:
In the AIR receiving state, press the [MODE] to switch the meter band
and the frequency points are:
118.00MHZ, 123,00MHZ, 128.00MHZ, 133.00MHZ, 138.00MHZ
13.3 Preview method for prestore radio station
After the 7.1 or 9.2 methods,
Receiving band has stored stations (except WX Weather band for
North American countries), long press [MODE] for 2 seconds to enter
the preview function. "L X X X" will flash.
A station will be switched for each five seconds; press any button to
quit the preview function. Radio browsing tips: set up and store the
radio band/frequency you need (Radio automatic scan storage is also
more suitable, communication radio is more suitable for manual
input) Long press the MODE button to enter the browse MODE,
which will start from the current minimum frequency digit and play
for 5 seconds for each pre-stored station. You can press any key to
stop browsing midway.