Free shipping TECSUN new style PL-398MP FM Stereo.SW.MW.LW .DSP.ETM World Band Radio&MP3 Player+ 4G SD card + power supply

Free shipping TECSUN new styleTecsun pl-210 FM Stereo SW MW LW Dual Conversion Radio+ 4G SD card + power supply + sd card reader

TECSUN PL-398MPIs with MP3 playback (SD card slot )Full-band stereo portable radios, can listen to FM stereo . Shortwave . Wave . Longwave radio, MP3 music player , a line input, can be used as the active use of small speakers .

Main features:
Dual-channel dual speaker design , listen to stereo program available immersive stereo sound

FM stereo Shortwave (2300 ~ 21950KHz). Wave . Longwave full band ; FM Receiving frequency range 64 ~ 108MHz, can listen to China . Western and Japanese FM broadcast frequencies , but also to listen to part of the campus radio

The company used by the U.S. SILICON LABS si4734 digital signal processing (DSP) chip, FM / AM radio signal to digital conversion, and the use of modern software radio technology for processing, greatly improved sensitivity . Selectivity SNR and anti-jamming capability

Seven kinds of tuning mode optional : easy tuning (ETM). Automatically search browse radio frequency automatic search browse saved stations . Manually search for radio frequency (VF). Manually search saved stations (VM). Direct input frequency numbers. Direct enter the address saved station numbers which easy tuning (ETM) is a German born to improve the efficiency of income units unique way of income units

Intelligent Variable Speed Jog tuning knob

LCD display radio frequency signal strength / noise ratio. Temperature time information such as battery charge

Smart / Manual LCD and keypad backlight

30 Electronic Volume Control

Manual / Auto power off ( 1 to 120 minutes )

Radio Alarm / Buzzer Naoxing

MP3 player (SD card slot )(SD card needs to be purchased separately , the proposed purchase of the SD card with the purchase of the SD card reader, the interface can only be charged, can not read data)

Line input jack can be used as active mini speaker

Using three R6 ( AA ) batteries can also be used nickel- metal hydride rechargeable batteries ( via the USB socket power supply for intelligent charging )

Comes with high-quality stereo headphones line input audio cable . Beautifully protective sleeve

Product Size : Width 187 × height 90 × thickness 30 ( mm )

PL-398MP basic technical indicators
A frequency range / tuning step
Frequency Modulation (FM)
64-108MHz; intelligent stepper 0.01MHz/0.1MHz
can choose the frequency coverage :
Standard :87-108MHz ( suitable for China in Europe and America )
Germany :87.5-108MHz
Russia :64-108MHz ( also suitable for most of the campus radio receiver China )
Japanese :76-108MHz
Short wave (SW)
2300-21950KHz; intelligent stepper 1KHz/5KHz
Medium wave (MW)
522-1620KHz; intelligent stepper 1KHz/9KHz ( suitable for Asia, Africa and Europe )
520-1710KHz; intelligent stepper 1KHz/10KHz ( suitable for North America )
Longwave (LW)
153-513KHz; intelligent stepper 1KHz/9KHz

2 Noise limited sensitivity:
Frequency modulation (FM) (S / N = 30dB) than 3uV
Short wave (SW) (S / N = 26dB) than 20uV
Wave (MW) (S / N = 26dB) than 1mV / m
Long wave (LW) (S / N = 26dB) than 10mV / m

3 Optional:
Frequency Modulation (FM)u003e 60dB (± 150KHz)
Shortwave (SW)u003e 60dB (BW = 3KHz, ± 5KHz)
Medium wave (MW)u003e 60dB (BW = 3KHz, ± 9KHz)
Longwave (LW)u003e 60dB (BW = 3KHz, ± 9KHz)

4 FM stereo separation: better than 35dB

5 Output power ( distortion 10%): ≥ 180mW × 2

6 Number of storage memory : a total of 550
Frequency Modulation (FM) 100
Short wave (SW) 250
Medium wave (MW) 100
Longwave (LW) 100

7 Naoxing Mode: Radio Alarm . Beep Naoxing

8 Static current:
Frequency Modulation (FM) u003c25mA
Shortwave (SW) u003c30mA
MW / LW (MW / LW) u003c30mA
Shutdown u003c80uA

9 Speaker Specifications : Diameter 57mm.8Ω.250mW tray speaker × 2

10 Headphone Specifications : Φ3.5mm/32Ω stereo headset

11 Power supply:
Battery ( Optional parts ) : 3 R6 ( AA ) batteries or rechargeable batteries
External power supply (optional ): USB DC 5V ≥ 250mA Specifications

12 Product Size : approx width 187 × height 90 × thickness 30 (mm)

13 Weight : about 365g ( without batteries )

14 Accessories: High quality stereo headphones . Line input audio cable . Beautifully protective sleeve. Instruction manual. Certificate. Guarantee service

PL-398MP physical picture

This is an animation display SD card into the process :

PL-398mp of ETM Features:

ETM: Easy Tuning Mode convenient tuning mode

ETM tuning method – the use of radio receiving circuit and the MCU control software does not preclude radio frequency points , preferably a suspected radio frequency , allowing users to easily find out later want to listen to radio programs .

As we all know , civilian radio frequency range and radio frequency interval is usually :
FM 87 – 108 MHz, the frequency interval 0.1 MHz;
MW 522 – 1620 kHz, the frequency interval 9 kHz;
HF 1700 – 30000 kHz, the frequency interval 5 kHz.

Theoretically, each band radio frequency points are permitted as follows:
FM 87 – 108 MHz, can accommodate radio frequency point (108-87) ÷ 0.1 = 210 month;
MW 522 – 1620 kHz, can accommodate as radio frequency (1620-522) ÷ 9 = 122 month;
HF 1700 – 30000 kHz, can accommodate radio frequency point (30000-1700) ÷ 5 = 5660
[ PL-398mp shortwave receiver frequency points (21950 -2300) ÷ 5 = 3930]

digital tuning radios are designed in accordance with the provisions of the range and frequency step intervals . Searching with digital tuning radio stations , from low-end to high-end frequencies , FM To search for 210 frequency points , medium to Search 122 frequency points , to search for thousands of shortwave frequencies .

But in fact, to prevent adjacent channel interference, based on many reasons , not everyone has a radio frequency , such as listening to the FM radio in different locations , ranging received several radio broadcasts , as many as received 60 – 70 radio broadcasts ; another example, wave signal transmission due reasons, the distribution is characterized by the number of stations during the day and less at night and more, will be able to receive a few – a few dozen stations.

then PL-398mp shortwave receiver as an example:
short wavelength there (21950-2300) ÷ 5 = 3930 frequency points , and can actually listen to the radio program is the day dozens of the evening hundreds, and early in the evening is almost a different radio frequency distribution . assuming the radio to receive only 200 radio programs, then in order to search to this 200 radio stations, you have to search for 3930 frequency points, so search again take a very long time.

In response to these problems, Desheng developed ETM tuning methods , the use of the radio receiving circuit and the MCU control software does not preclude radio frequency point , preferably a suspected radio frequency ( such as different countries. various languages the program also includes the local electromagnetic environment of the interference signal ) , ie, with ETM tuning frequency method is preferable from thousands of dozens — hundreds of suspected frequency, the user operating income units in the future , it is very easy to come out from these preferred suspected frequency point , find out what you want to listen to radio programs .

with ETM convenient way to listen to the radio tuner , users will search frequency can be reduced to :
Several FM – dozens , day and night basically the same ;
Several Polish – dozens less during the day . nocturnal ;
shortwave dozens – hundreds, less during the day . night less . evening more, and different time periods , in different radio frequency range .

ETM function method of operation :

first use ETM function , first press ETM key , where the band performed on the full frequency search , preferably a radio frequency suspected Preferably finished, you can use the tuning knob to operate the transfer station .

Special Note: at different times in different places in different bands , the number of suspected and radio frequency distribution is not the same , especially the short- wave band .

in the same place listening to the radio with the ETM method :
FM band : once during the day as long as the ETM preferably on the line, this will not always do the ETM preferred frequency , but for a place to listen to , it is recommended to re- do a ETM.
medium wave band : in radio more in the evening, once ETM preferred , but for a place to listen to , it is recommended to re- do a ETM.
shortwave bands : The ETM convenient way to listen to the highest degree of shortwave broadcasting , the most practical. ways at different times using ETM listen to shortwave radio , first proposed for ETM is preferred .

In order to avoid too much clutter signal search , we recommend you to the balcony or outdoor open area of ETM preferred .

ETM tuning method used , you will feel listening to the radio can also be so easy, so fast.

Q u0026 A:

Q: ETM and ATS What is the difference ?

A: ETM and the ATS in the search / store the frequency of the basic principle is the same.

ATS search radio signal strength threshold is set relatively high in order to minimize non- locked radio frequency value is too weak without listening to radio frequency is the frequency search is automatically stored in the memory can be edited , afterwards you can freely delete and increasing radio frequency. finishing a radio frequency memory , you can easily recall from memory drive frequency of the station you want to listen . Precisely because of this , I believe you are not willing to be free to ATS operation overwrite your hard edit, and organize a good radio frequency.

ETM is based on frequency modulation convenient tuning mode , the lock has a lower threshold of searching , it is certainly not to exclude those who do not even have radio frequency noise for the purpose of this mode can be locked weaker radio signals suspected , finished ETM preferred frequency and then go listen to the radio , not only can save you hours of operation , but also can improve the life of the tuning knob , because ETM convenient tuning method does not provide editing features, you can be anywhere . not hesitate to ETM operations, re- search suspected radio frequency.

tip: in a better listening environment , ETM and ATS searched number of radio frequency may be the same, especially the FM band . Anyway, nothing to lose with ETM , PL-398mp there ETM features both ATS you can be repeated operations, compared to their different .