DeshengPL-660High-performance full-band digitally tuned stereo radio
Face-to-face transactions in Beijing Tel: 13141118230
● Comes with a dedicated external stabilized power supply, Ni-MH rechargeable battery, external antenna, stereo headset, and beautiful protective cover
This shop is officially authorized by Tecsun, the original factory, please rest assured to buy.
PL-660It is a boutique portable full-band digital tuning radio produced by Keysight. The AM receiver of this machine uses synchronous detection and secondary frequency conversion technology, and the FM and aviation band tuner adopts five-link tuning technology, which greatly improves the sensitivity, selectivity, anti-image and anti-adjacent frequency interference of the whole machine;PL-660It is also a portable radio set by Tecsun on the aviation band. I believe this product can meet most of your needs for listening to global radio.
PL-660Function introduction
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●Can receive FM stereo, medium wave, long wave, short wave, short wave single sideband（SSB）Communication signal and aviation band signal, high sensitivity, good selectivity, beautiful sound quality, convenient operation
●The amplitude modulation circuit uses secondary frequency conversion technology and synchronous detection technology; the frequency modulation and aviation band high frequency circuit uses five-link tuning technology, which greatly improves the receiving sensitivity, selectivity, and anti-image and anti-adjacent frequency interference capabilities
●Short wave single sideband（SSB）Top sideband（USB）And the lower sideband（LSB）Independent reception, sideband interference suppression is greater than 40dB
●Equipped with FM/short wave external antenna socket and high/medium/low sensitivity control switch for 3 levels, which is convenient for remote reception（DX）
●Six ways to select channels: Manually search for radio frequency（VF）, Directly input frequency numbers, manually search for pre-stored radio stations（VM）, Directly enter the number of the pre-stored radio station address, automatically search and browse the radio frequency, and automatically search and browse the stored radio frequency
●Can be manual, semi-automatic, fully automatic（ATS）Search and store up to 2000 radio frequencies. 800 of them are stored by band（FM/medium wave/long wave/aviation band each store 100, shortwave/single sideband each store 200）, The remaining 1,200 frequencies can be stored in 12 pages without categorizing them by band（12×100）
●FM reception covers the 76-108MHz range, and can receive FM radio frequencies in China, Europe, the United States, and Japan, and can also listen to some domestic campus radio and TV audio. You can enjoy FM stereo radio with headphones
●Use high-quality high-sensitivity speakers with beautiful sound quality; equipped with high/bass control switch to meet the tone needs of listening to different programs
●The man-machine interface is friendly and convenient to use. It is equipped with a very practical multi-function digital adjustment knob, which can be used to set the time, adjust the frequency, select the storage page and address, etc.
●Dual timing boot function, you can listen to radio programs with pre-stored frequencies after booting
●Smart power switch: You can set to automatically shut down after 1-120 minutes after booting, or cancel the automatic shutdown function
●Use 4 AA batteries for power supply, or use rechargeable batteries or an external power supply; this machine has smart charging function
●Supplied with a dedicated external stabilized power supply/charger, Ni-MH rechargeable battery, external antenna, stereo headset, and exquisite protective cover
●Actual size: width 187× height 114× thickness 33（Mm）
●Appearance patent number: 200430110979.5
●Available colors: black, silver
PL-660Basic technical indicators
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1,Frequency range/tuning step
FM（FM）:
76-108MHz; Smart stepping0.01MHz/0.1MHz
Optional frequency coverage:
standard:87-108MHz（Applicable to other countries except Japan and Russia）
Germany:87.5-108MHz（GermanyFTZStandard, displayed when setting88-108MHz）
Japan:76-108MHz（Including some domestic campus broadcasts and4~5Channel TV sound）
Mid-wave（MW）:
522-1620kHz; Smart step1kHz/9kHz（Suitable for Asia, Africa and Europe）
520-1710kHz; Smart stepping1kHz/10kHz（Suitable for North America）
Long wave（LW）:
100-519kHz; Smart step1kHz/9kHz
shortwave（SW）:
1711-29999kHz; Smart step1kHz/5kHz
Aviation Band（AIR）:
118-137MHz; Smart stepping1kHz/25kHz
2,Noise limit sensitivity:
FM（FM）（S/N=30dB）Better than3uV
Mid-wave（MW）（S/N=26dB）Better than1mV/m
Long wave（LW）（S/N=26dB）Better than5mV/m
shortwave（SW）（S/N=26dB）Better than20uV
Single sideband（SSB）（S/N=10dB）Better than1uV
Aviation Band（AIR）（S/N=10dB）Better than5uV
3.Selectivity（AM IF bandwidth is set to narrowband）
FM（FM）＞30dB（±200kHz）
Medium/Long Wave（MW/LW）＞40dB（±9kHz）
shortwave（SW）＞40dB（±5kHz）
4.Signal-to-noise ratio
FM（FM）: Better than60dB
Medium and long waves（MW/LW）: Better than45dB
shortwave（SW）: Better than50dB
5.IF frequency
AM: Intermediate frequency55.845MHz
Second IF455kHz
FM:10.7MHz
6.FM stereo separation: better than20dB
7.Output Power（distortion10%）
Horn: ≥450mW
Headphones: ≥10mW
8,Number of storage memories: Total2000A
Store by band: Total800A
FM（FM）:100A
Mid-wave（MW）:100A
Long wave（LW）:100A
shortwave（SW）:200A
Single sideband dedicated（SSB）:200A
Aviation Band（AIR）:100A
Not stored by band: Total1200Points12Pages, each page can be stored100A
9,Wake-up mode: radio station alarmA, Radio station alarmB（Total2A）
10.Quiescent Current:
FM（FM）＜50mA
Medium Wave/Long Wave（MW/LW）＜70mA
shortwave（SW）＜70mA
Single sideband（SSB）＜70mA
Aviation Band（AIR）＜70mA
Shutdown standby current ＜80uA
11.Horn specifications: diameter77mm/impedance16Ω/Power 1W cone speaker
12.Headphone specifications: diameter3.5mm/32Ωstereophone
13.Power supply:
battery:4SectionR6（Number five）Dry battery or rechargeable battery
External power supply: DC6V 300mA
14.Physical size: about width187×high114×thick33（mm）
15.Weight: about470g（Without battery）
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The Role of Synchronous Detection Technology in AM Radio
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The principle of AM broadcasting is based on the transmission frequency as the midpoint, and the upper and lower double-sideband AM envelopes are used to transmit sound information. The upper and lower double-sidebands contain the same voice information. The usual double-sideband detection is to demodulate and restore the upper and lower sides at the same time. With the sound information carried, this demodulation technology has low cost and is easy to popularize. The disadvantage is that when the adjacent frequency has a strong AM signal, it will cross-talk a certain sideband of the frequency you are receiving, thereby affecting the listening quality.
The feature of synchronous detection technology is that it can select the sideband that is not interfered by the adjacent frequency from the upper and lower sidebands of the listening frequency for detection and restore the sound. Therefore, the synchronous detection technology is compared with the traditional double-sideband detection technology. Better ability to suppress adjacent channel interference.
What can I receive on the aviation band?
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Used by civil airports all over the world118-137MHZ（AMStandard）, To guide the take-off and landing of the aircraft, and at the same time, use a fixed frequency to continuously broadcast weather information around the airport.
Can receive118-137MHz(AMsystem）The radio receiver of the signal, within a distance of tens of kilometers from the airport, may receive the dialogue between the airport navigation station and the pilot of the aircraft, as well as the weather forecast around the airport.
Many professional and amateur radio communication receivers can receive aviation band signals.S2000 can alsoReceived the aviation band signal, the release this timePL660, Is Tecsun’s portable radio with aviation band. According to our testing experience in various places,PL660It is an aviation band radio with very excellent performance.
Matters needing attention when using aviation band:
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According to my country’s flight safety regulations, passengers cannot open the flight mode during the entire flight.GPSMobile phone and aviation band receiver.
The Tecsun radios sold in this shop are allDongguan Desheng General Electric Manufacturing Co., Ltd.Brand new produced.