PL-360Full-band digital demodulation stereo radio
Random standard configuration: Stereo headset, protective cover, external medium wave antenna, manual, certificate, after-sales service guarantee
PL-360 is a high-performance, low-power, multi-function and easy-to-operate full-band digital tuning radio designed by Tecsun based on DSP digital demodulation technology. It uses the ETM originally developed by Tecsun（Easy Tuning Mode）The tuning mode greatly improves the convenience of listening to the radio.
I hope this lightweight radio will help you enjoy the radio and bring you joy!
PL-360Features introduction:
●This machine uses the United StatesSILICON LABS''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s si4734Digital signal processing(DSP)Chip, digital conversion of analog FM/AM broadcast signals, processing and demodulation using modern software radio principles, greatly improving listening sensitivity, selectivity, signal-to-noise ratio and anti-interference ability
●Can receive FM stereo, medium wave (expandable to long wave）,shortwave(2.3~21.95MHz)Radio programs, many practical functions, easy operation, special power saving
●FM receiving frequency range can be set to receive76~108MHz(Japanese standard),87~108MHzor87.5~108 MHz(European and American standards)
●Equipped with a medium wave external antenna socket, with the supplied medium wave external antenna, it can greatly improve the receiving sensitivity of the medium wave/long wave band
●Equipped with a very practical multi-function digital adjustment knob, which can be used to set the time, adjust the frequency, and select the address
●There are five ways to select channels: convenient tuning(ETM),Manually search for radio frequency(VF),Manually search for pre-stored radio stations(VM),Automatic search and browse radio frequency, automatic search and browse stored radio stations, among which ETM is Tecsun’s original method of receiving stations in order to improve the efficiency of receiving stations.
●Can be manual, semi-automatic, fully automatic(ATS)Store up to450Radio frequencies, of which FM/medium and long wave can be stored separately100One, short wave can be stored250Frequency points
●Multi-function display: It can display the working status of radio frequency, electric field intensity, signal-to-noise ratio, temperature, battery capacity, etc.
●A special high-sensitivity film speaker is used, with beautiful sound, and FM stereo broadcasting can be heard with headphones
●It is equipped with a broadcast timing boot function, you can turn it on regularly to listen to the preset radio program, and you can also set it in1~90Automatically stop the alarm function within minutes
●Highly intelligent power switch function: you can set the1~120Automatic shutdown after minutes, or cancel the automatic shutdown function
●use3 sections R6(No. 5) battery power supply, Ni-MH battery can also be used, and has a smart charging function (USBjack)
●Comes with a beautiful protective cover, medium wave external high-sensitivity antenna and stereo headphones
**Glossary:ETM——Easy Tuning ModeConvenient tuning method
ETMConvenient tuning method——Using the ingenious combination of the receiving circuit of the radio and the control program, the frequency of the suspected radio station is selected in advance to improve the efficiency of tuning and receiving. Using ETM radio, you can easily tune out your favorite radio station from the preferred frequency
PL-360Basic technical indicators
●Frequency range/tuning step
—— FM（FM）76— 108 MHz;Smart step0.01MHz/ 0.1 MHz
Optional frequency coverage:
standard:87— 108 MHz（Applicable to the standards of other countries except Japan, Germany, and Russia）
Germany:87.5— 108 MHz
Japan:76— 108 MHz（Including some campus radio and domestic4 ~ 5Channel TV sound）
—— shortwave（SW）
2300— 21950 kHz; Smart step 1 kHz / 5 kHz
—— medium wave（MW)
522— 1620 kHz; intelligent stepping 1 kHz / 9 kHz（Suitable for Asia, Africa and Europe）
520— 1710 kHz; intelligent stepping 1 kHz / 10 kHz（Suitable for North America）
150— 1620 kHz;（Covered long wave）Smart step 1 kHz / 9 kHz
●Noise limit sensitivity:
FM（FM） （S/N=30dB）Better than 3 uV
Mid-wave（MW） (S/N=26dB）Better than 2 mV/m built-in antenna
Mid-wave（MW） （S/N=26dB）Better than 1 mV/m external antenna
Long wave（LW） （S/N=26dB）Better than 12 mV/m built-in antenna
Long wave（LW） （S/N=26dB）Better than 4 mV/m external antenna
shortwave（SW） （S/N=26dB）Better than 30 uV
●Optional:
FM（FM） ＞60 dB
Mid-wave（MW）＞60 dB
Long wave（LW）＞60 dB
shortwave（SW）＞60 dB
●FM stereo separation: better than25 dB
●Output Power:
Speaker: 350 mW
Headphones: 10 mW / 8-32Ω Stereo headset
●Number of storage memories:450 in total
FM（FM） 100
Medium and long waves（MW） 100
shortwave（SW） 250 pcs
●Wake-up mode: radio station alarm
●Quiescent Current:
FM（FM）＜25mA
Medium Wave/Long Wave（MW/LW）＜23mA
shortwave（SW）＜27mA
Shutdown standby <90uA
●Horn specifications: diameter40mm/16Ω thinMembrane horn
●Power supply:
Battery powered:3 sections R6（Number five）Dry battery or rechargeable battery
External power socket: USB specification/DC 5V 300mA
●Weight: about128g (without battery)
●Actual size: width 53× high 159× thick 26（Mm）
●Appearance patent number: 200830217914.9
●Random accessories:
Stereo headset, protective cover, medium and long wave external antenna, instruction manual, certificate, after-sales service guarantee
PL-360 ETMFunction introduction:
ETM: Easy Tuning ModeConvenient tuning mode
ETMTuning method————Using the radio receiving circuit and MCU control software, the frequency points without radio programs are excluded in advance, and the frequency points of suspected radio stations are selected, so that the user can easily find out the radio station programs to listen to in the future.
As we all know, the frequency range of civil radio broadcasting and the frequency interval of broadcasting stations are usually:
FM: frequency range87— 108 MHz frequency interval 0.1 MHz
Medium wave: frequency range 522— 1620 kHz frequency interval 9 kHz
Shortwave: frequency range 1700— 30000 kHz frequency interval 5 kHz
Theoretically, the number of frequencies allowed for radio stations in each band is:
FM87— The radio frequency point that 108 MHz can accommodate is（108-87）÷0.1 = 210
Zhongbo 522— The radio frequency points that can be accommodated at 1620 kHz are（1620-522）÷9 = 122
Shortwave 1700— The radio frequency points that can be accommodated at 30000 kHz are（30000-1700）÷5 = 5660
【The frequency of PL-360''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s shortwave reception is（21950—2300）÷5 = 3930】
Digital tuning radios are designed to receive range and frequency step interval in accordance with the above regulations. Use digital tuning radio to search for radio stations. From the low end to the high end of the frequency, 210 frequency points are searched for FM, 122 frequency points are searched for medium wave, and thousands of frequency points are searched for short wave.
But in fact, for many reasons, such as preventing adjacent frequency interference, not every frequency has a radio broadcast. For example, when you listen to FM radio in different places, you will receive a few radio stations at least, and 60— 70 radio broadcasting. For example, due to signal transmission in medium wave, the distribution of the number of radio stations is characterized by less during the day and more at night, and only a few can be received.— Dozens of radio stations.
Take PL-360''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s shortwave reception as an example:
Short-wave band has（21950-2300）÷5 = 3930 frequency points, and the actual radio programs that can be listened to are dozens in the daytime and hundreds in the evening, and the frequency distribution of radio stations in the morning, midnight and evening is almost different. Assuming that the radio can receive only 200 radio programs, then in order to search for these 200 radio stations, you have to search for nearly 4000 frequency points, so it takes a long time to search again.
In response to the above-mentioned problems, Tecsun has developed an ETM tuning method, which uses the receiver circuit of the radio and MCU control software to preclude the frequency points without radio programs, and select the frequency points of the suspected radio station.（Such as programs in different countries and languages, as well as interference signals from the local electromagnetic environment）. In other words, the ETM tuning method can select dozens of frequency points from thousands of frequency points.——Hundreds of suspected frequency points, users can easily find out the radio station program you want to listen to from these selected suspected frequency points in the subsequent closing operations.
Use ETM convenient tuning method to listen to the radio, the frequency points that users want to search can be reduced to:
FM several— dozens of them, day and night are basically the same
A few in Poland— Dozens less during the day and more at night
Shortwave— Hundreds of frequency points: Fewer days during the day, less late at night, and more in the evening, and in different time periods, radio stations are distributed in different frequency ranges.
ETMOperation method of function:
To use the ETM function for the first time, you must first press and hold the ETM button to perform a full-frequency search on the band where it is located, and select the frequency of the suspected radio station. After the optimization, you can use the tuning knob to operate the tuning.
Special note: The number and frequency distribution of suspected radio stations are different at different times, in different locations, and in different bands, especially in the short band.
Use the ETM method to listen to the radio in the same place:
FM band: Just do ETM optimization once during the day, and don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t do ETM optimization every time in the future. However, if you change the listening location, it is recommended to do ETM again.
Medium wave band: You can do an ETM optimization at night when there are more radio stations. However, if you change the listening location, it is recommended to do ETM again.
Shortwave band: The ETM method is the most convenient and practical to listen to shortwave broadcasting. To listen to shortwave broadcasts in ETM mode at different times, it is recommended to perform ETM optimization first.
In order to avoid searching for too many clutter interference signals, it is recommended that you go to the balcony or outdoor open area for ETM optimization.
With the ETM tuning method, you will feel that listening to the radio can be so easy and fast.
Q&A:
Q: What is the difference between ETM and ATS?
A: ETM and ATS are basically the same in the principle of search/storage frequency.
The signal strength threshold of the radio station during ATS search is set to be relatively high, in order to minimize the locking of non-radio frequencies, and radio frequencies that are too weak and worthless to listen to. The searched frequency memory is automatically stored in the editable memory, and you can delete and increase the radio frequency at will afterwards. After sorting the stored radio frequencies, you can easily call out the radio frequencies you want to listen to from the memory. Because of this, I believe you will not be willing to perform ATS operations at will and overwrite the radio frequency that you have worked so hard to edit and organize.
ETM is a convenient tuning method based on frequency tuning. It has a lower threshold for search and lock. It aims to exclude frequencies that are definitely not radio or even noise. This mode can lock on weaker suspected radio signals and finish ETM Listening to the radio after optimizing the frequency can not only save your operating time, but also increase the life of the tuning knob. Just because the convenient ETM tuning method does not provide editing functions, you can perform ETM operations at any time and without hesitation. Search for suspected radio frequency.
One tip: In a better listening environment, the number of radio frequencies searched by ETM and ATS may be the same, especially on the FM band. Anyway, you won’t lose anything with ETM. PL-360 has both ATS and ETM functions, so you can compare it.
Picture provided by Xi''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''an netizen GAOYUAN