Usafirishaji wa kawaida bila malipo kwa maagizo zaidi ya $9.9
Sera ya Kurudisha
Rudisha bidhaa zitakubaliwa ndani ya siku 40 tangu tarehe ya kupokea bidhaa. Bidhaa zilizobuniwa haziwezi kurudishwa au kubadilishwa. Bidhaa zilizonunuliwa na kadi ya zawadi ya elektroniki zinaweza kubadilishwa tu; rudi pesa haifai.
Zawadi ya Bure
Karibu Roymall, tovuti yako ya kitaalamu ya kununua zawadi za hifadhi ya duka. Tunathamini na kushukuru msaada wako, na tunataka kuonyesha shukrani yetu kwa kuongeza kipengele cha msisimko wa ziada kwa ununuzi wako. Unaponunua nasi, sio tu utapata bidhaa za hali ya juu zinazoboresha maisha yako, lakini utapata pia zawadi ya bure ya kipekee kwa kila agizo lako. Tayari kuchunguza mkusanyiko wetu na kupata zawadi zako kamili? Chunguza uteuzi wetu wa bidhaa za hifadhi ya duka, weka agizo lako na subiri msisimko wa zawadi yako ya bure kufika pamoja na ununuzi wako.
Sera ya Usafirishaji
Tutafanya kazi kwa bidii kukufikishia bidhaa baada ya kupokea maagizo yako na kuhakikisha zinafika salama. Maelezo ya uwasilishaji yatakuwemo kwenye barua pepe yako ya uthibitisho.Kwa hali ya kawaida, maagizo huchakatwa ndani ya siku 2. Katika hali maalum, yanaweza kucheleweshwa kama ifuatavyo: Unapoagiza Jumamosi, Jumapili au siku za likizo, itacheleweshwa kwa siku 2.Kwa kawaida, inahitaji siku 5-7 za kazi (Jumatatu hadi Ijumaa) bila kuathiriwa na ucheleweshaji wa ndege au mazingira mengine.Kwa sababu huduma yetu ya usafirishaji ni kimataifa, muda wa uwasilishaji utategemea eneo lako, kwa hivyo inaweza kuchukua muda na tafadhali subiri kwa subira ikiwa uko katika wilaya au nchi za mbali.
1. Sera ya Kurudisha na Kubadilisha
Tunakubali tu bidhaa zilizonunuliwa kutoka roymall.com. Ikiwa unanunua kutoka kwa wasambazaji wetu wa ndani au wauzaji wengine, huwezi kuzirudisha kwetu.Bidhaa za mauzo ya mwisho au zawadi za bure hazikubaliki kwa kurudisha.Ili kuwa na haki ya kurudisha, bidhaa yako lazima isitumike na iwe katika hali ileile uliyoipeleka. Pia lazima iwe kwenye pakiti ya asili.Baada ya kupokea maagizo ya kurudisha kutoka kwetu, tafadhali pakiti bidhaa zako zilizorudishwa na kuacha kifurushi chako kwenye ofisi ya posta ya ndani au mtoa huduma mwingine wa usafirishaji. Tutachakata bidhaa yako ya kurudisha au kubadilisha ndani ya siku 3-5 za kazi baada ya kuipokea. Rudi pesa itachakatwa na kuwekwa kiotomatiki kwenye njia yako ya awali ya malipo.Hakuna kurudisha au kubadilisha kunaweza kukubaliwa ikiwa bidhaa ilitengenezwa kwa maagizo maalum, ikiwa ni pamoja na saizi maalum, rangi maalum au uchapishaji maalum.Ikiwa unahitaji msaada zaidi, tafadhali wasiliana nasi. service@roymall.com au Whatsapp: +447549870296
2. Sera ya Kurudisha Pesa
Utapata rudi pesa kamili au stoo 100% ya stoo baada ya kupokea na kukagua kifurushi kilichorudishwa. Rudi pesa itachakatwa kiotomatiki kwenye njia yako ya awali ya malipo.Tafadhali kumbuka kuwa gharama za usafirishaji na ushuru wowote au ada hazirudishiwi. Gharama za ziada za usafirishaji hazirudishiwi mara tu kifurushi kimetumwa. Wewe ndiye mwenye jukumu la kulipa ada hizi na hatuwezi kuziacha au kuzirudisha, hata kama agizo litarudishwa kwetu.Mara tu tutakapopokea na kuthibitisha bidhaa yako iliyorudishwa, tutakutumia barua pepe kukujulisha kuwa tumepokea bidhaa yako. Pia tutakujulisha kuhusu uthibitisho au kukataliwa kwa rudi pesa yako.Ikiwa una shida yoyote kuhusu mchakato wa kurudisha pesa, tafadhali wasiliana nasi. service@roymall.com au Whatsapp: +447549870296
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Features:
This manual applies to each model of FY8300S series Function/Arbitrary Waveform Signal Generator. The last three characters of the model indicate the up limit output of Sine Wave (MHz). For example, the u201c60Minchs of the Model Number u201cFY8300-60Minchs indicates the Sine wave maximum output frequency is up to 60MHz.
FY8300S series Three-channel Function / Arbitrary waveform generator is a set of Function Signal Generator, Arbitrary Waveform Generator, Pulse Generator, Analog / Digital modulator, Sweep, Counters and Frequency Meter and other functions in a high Performance, cost-effective, multi-function signal generator. Abundant shortcut keys and graphical user interface simplifies every operation. Users do not have to spend a lot of time to learn and familiar with the operation of the instrument, you can be skilled use. For education, research and development, production, testing, maintenance and other industries to provide a new choice.
The instrument adopt the Direct Digital Synthesizer (DDS) technology and provide stable, precise, pure and low distortion signals. Surface mounting technology improves interference immunity and operational life span. Can output up to 97 groups of functions / arbitrary waveform, contains 33 groups of preset waveforms and 64 groups of user-defined waveforms. Preset waveforms: Sine, Square, Rectangle (Duty Cycle adjustable), Pulse (Pulse width and cycle time can be set accurately), Triangle/Ramp, CMOS(0~12V), Four channels TTL, Exponential Rise, Exponential Fall, Noise, ECG, DC etc.
Specification:
Frequency
Model
FY8300S-20M
FY8300S-40M
FY8300S-60M
Sine
0~20MHz
0~40MHz
0~60MHz
Square
0~20MHz
0~20MHz
0~25MHz
Ramp, Triangle
0~10MHz
0~10MHz
0~10MHz
Pulse
0~10MHz
0~10MHz
0~10MHz
TTL/CMOS
0~10MHz
0~10MHz
0~10MHz
Arbitrary Waveform
0~10MHz
0~10MHz
0~10MHz
Minimum pulse width
20ns(All models of pulse wave minimum width can reach 20ns)
Min. Resolution on all frequency range
1μHz (Min. resolution can reach 1μHz on all frequency range to ensure adjusting accuracy under high frequency. For example, it can output 10.000000000001MHz signal).
Accuracy
± 20ppm
Stability
± 1ppm/ 3hours
Waveform Characteristics
Waveforms
Sine, Square, Rectangle (Duty Cycle adjustable), Pulse (Pulse width and cycle time can be set accurately), Triangle/Ramp, Sawtooth Wave, CMOS, Four channels TTL, DC, Half wave, Full wave, Positive Step, Inverse Step, Positive Exponent, Inverse Exponent, Lorenz Pulse, Multitone, Noise, ECG, Trapezoidal Pulse, Sinc Pulse, Narrow Pulse, Gauss White Noise, AM, FM, and other 64 sets customer-defined waveform.
Non-Volatile Storage
Can store 64 user-defined arbitrary waveforms, (8K 14bits) * 64
Waveform Length
8192 points * 14bits
Sampling Rate
250MSa/s
Vertical Resolution
14 bits
Sine
Harmonic Suppression
≥50dBc(<1MHz); ≥45dBc(1MHz~20MHz);
Total Harmonic Distortion
<0.5% (20Hz~20kHz,0dBm)
Rectangle
Rise/Fall Time
≤ 15ns (VPP<5V)
Overshoot
≤ 5%
Duty Cycle
0.01%~99.99% (Resolution 0.01%)
Sawtooth wave
Linearity
>99% (0.01Hz~10kHz)
Output characteristics
Amplitude(VPP)
Frequency≤ 5MHz: 1mVpp~24Vpp;
5MHz
10MHz
Frequency>20MHz: 1mVpp~5Vpp;
Resolution
1mV
Amplitude Stability
± 0.5%/ 5 Hours
Amplitude flatness
± 2.5%(<10MHz);± 5%(>10MHz);
Waveform Output
Impedance
50Ω± 10%(Typical)
Protection
All channels can work more than 60 seconds when the load is short-circuited.
funciona bem, tem boas características, boas opções de modulação vco e sweep, porém somente o canal 1 pode receber modulação pelo canal 2, sweep somente no canal 1, vco somente no canal 1. canal 2 e 3 podem ficar ativos ao usar canal 1. a precisão de tensão não é muito boa, e onda quadrada tem overshoot elevado. interface pouco prática. mas é um bom gerador de baixo custo. este modelo está com o adesivo errado!
Very good value for money and fast shipping. The package arrived to EU for 14 days. The product covers the advertised specs and has intuitive user interface. The speed dial, soft keys and the display let you change all the parameters of the signal in a convenient way.
The device has proven to be precise and fully meets the characteristics specified by the seller and the manufacturer.
Roymall C.o.
Zawadi ya Bure
Sera ya Usafirishaji
Sera ya Kurudisha
Coupon Code
Direct purchase from the factory 
Tools
Measurement & Analysis Instruments
Digital Multimeters & Oscilloscope
Signal Generator
