Transmisi Video Nirkabel RF Frekuensi Digital Down Converter COFDM Frekuensi Transfer 2.4G nganti 600Mhz BDC rendah

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Transmisi Video Nirkabel RF Frekuensi Digital Down Converter COFDM Frekuensi Transfer 2.4G nganti 600Mhz kurang

Points Selling

1. jumlah Input saka 24000 kanggo 600MHz (1800Mhz Lower)
2. bandwidth dhuwur
3. gangguan phase Low
4. stabilitas-frekuensi dhuwur

Keterangan

RF Range Frequency: 2400 MHz
Yen Range Frequency: 600 MHz
bali mundhut:-12 DB
frekuensi Akurasi: ± 10 ppm
gambar larangan: 60 DBC
flatness: ± 0,5 DB (8bandwidth MHz)
konversi Gain: 25 DB
phase Noise (DBC / Hz)
DBC / Hz @ 1KHz ≤-80
DBC / Hz @ 10KHz ≤-90
DBC / Hz @ 100KHz ≤-100
sumber voltase: 10~ 15V
Power Saiki: 100 MA
Operating Range suhu: +25 ℃

Port

RF IN: SMA-50K
Yen OUT: SMA-50K
Power + 12V: Stick
GND: lug soldering

Wigati

1. Konverter ora perlu nambah amplifier kurang swara ing mburi mburi.
2. Test nyata: test Ana-loop wonten ing frekuensi saka 2.4GHz / bandwidth 4MHz, sensitivitas nampa bisa tekan -105dBm.
3. frekuensi Input ndhukung 1 ~ 3GHz. (Kita bisa mbantu ngatur).
4. Output frequency supports 300~700MHz. (Kita bisa ndhukung Ngatur).

About the above video:

Our most popular products are wireless video transmitters and receivers. Nanging, some clients require modification of the transmission frequency to meet local legal demand, in which case the digital frequency up-down converter block comes in handy. Siji pelanggan njaluk supaya kita ngatur konverter mudhun frekuensi RF kanggo pemancar video nirkabel 2.4G. Dadi frekuensi input yaiku 2.4GHz, frekuensi output punika 600MHz, and the lowdown frequency is 1800MHz. Kita nggawe sampel sesuai karo spesifikasi. So I showed him a simple video that showed the 2.4G transmitter and 600Mhz receiver working correctly. Yen sampeyan duwe syarat sing padha, kayata input frekuensi 1-3G lan output 300-700Mhz, hubungi kita kanggo solusi khusus.

1. What is an RF frequency digital block-down converter (BDC)?

A RF frequency block downconverter (BDC) for wireless video transmitters is a device that can convert a high frequency range to a low frequency range.

Typically used on the wireless video transmitter side. Tuladhane,

• From 5.8G to 2.4G down converter
• From 2.4G to 1.2G down converter
• From 1.2G to 600Mhz down converter

This is due to the fact that wireless transmission frequencies in many countries or regions are restricted by local laws and regulations.

Ora diidini nggunakake ing sawetara frekuensi tartamtu.

Kanggo ngganti frekuensi operasi saka pemancar lan panrima, down-conversion or up-conversion is required. Priksa manawa frekuensi transmisi sesuai karo hukum lan peraturan lokal.

Ana uga kasus nalika frekuensi panampa profesional tetep, Tuladhane, antarane 300-800Mhz.

In order for the transmitter's frequency to be paired, tfrekuensi saka pemancar 1.2G kudu suda.

All of this necessitates the use of a frequency downconverter for wireless video transmission.

2. sawetara frekuensi input Kula badhe kudu 2.0GHz kanggo 2.7Ghz, need a downconverter to 200 Mhz to 900Mhz. Gain konversi saenipun bakal 30db ora 25db. Punapa iki gampang kanggo sampeyan apa?

Ya, our professional engineer replied, we can do it. And, before delivery, we will show you the test video.

3. Can you make a down converter with LO1G? we need input 1300-1400 Mhz frequency and output 300-400 MHz.

Ya, our professional engineer confirms that we can re-design and modify some key components to do that. Mesthi wae, before delivery, we will show you the test video.

4. Do you have or designed for MMDS applications? From 3400 -3600MHz, The S-Band is converted to the UHF range 400 kanggo 600 MHz, LO oscillator is 3000MHZ.

Thanks for your inquiry, I will check with our engineer.

5. What is RF output in dB? Can you make a down converter from 5.8 GHz to 3.1 Kg? Can you make a UP converter? From 1,25 GHz to 3.4 Kg?

Thanks for your inquiry. We can customize for you.

Please tell us the specification details of your transmitter and receiver modules.

6. Would you customize the frequency up-converter block and frequency down-converter block?

Pitakonan: We are interested in n.1 downconverter from 950-1500 Mhz to 350-850 Mhz and n.1 upconverter from 350-850 Mhz to 950-1500 MHz. Osilator lokal 1800 MHz.

Ya, Here is our specification for your references.

Frequency Down Converer Block specification sheet

item	Keterangan
input frequency	950 MHz ～1550 MHz
frekuensi output	350 MHz ～850 MHz
Local frequency	1800 MHz
SPAN	500MHz
Noise Figure	≤1.5dB
gain	25 DB
Carrier leakage	≤-20dBm
Belt unevenness(8MHz)	≤1.5dB
IIP3:	≥15dBm
maximum input level	-10dBm
VSWR	≤1.5
operation temperature	-10～+60℃
voltage current	12V/240mA
Antarmuka RF	SMA-50KFD
ukuran	108*48*15mm
Power supply mode	Socket power supply

Frequency Up Converer Block specification sheet

item	Keterangan
input frequency	350 MHz ～850 MHz
frekuensi output	950 MHz ～1550 MHz
Local frequency	1800 MHz
SPAN	500MHz
Noise Figure	≤1.5dB
gain	25 DB
Carrier leakage	≤-20dBm
Belt unevenness(8MHz)	≤1.5dB
IIP3:	≥15dBm
maximum input level	-10dBm
VSWR	≤1.5
operation temperature	-10～+60℃
voltage current	12V/240mA
Antarmuka RF	SMA-50KFD
ukuran	108*48*15mm
Power supply mode	Socket power supply

Pitakonan: If a signal of -25 dbm enter, what level has the coverterd output?

jawaban: 0 dBm

7. I’m searching for a specific down converter, kanggo digunakake karo link OFDM RF kita dhewe.

Aku nggoleki downconverter tartamtu, kanggo digunakake karo link OFDM RF kita dhewe:

50input RF ohm: 1.435 kanggo 1.525 Kg

75 ohms IF output: sembarang pita frekuensi, antarane 100Mhz lan 900MHz

Frekuensi LO sing disenengi: 1846MHz

gain kurang: udakara 28 dB

gain dhuwur: udakara 43dB

DC powered saka IF port output, 12-24sawetara vDC

Ya, we can customize it for you.

Apa DDC

Ing Processing sinyal digital, a digital mudhun-rate (DDC) ngowahi a digitized, sinyal diwatesi pita menyang sinyal frekuensi sing luwih murah kanthi tingkat sampling sing luwih murah kanggo nyederhanakake tahapan radio sabanjure.. Proses ngreksa kabeh informasi ing sinyal asli kurang sing ilang kanggo lambé dibunderaké kasalahan ing pangolahan matematika. Input lan output sinyal bisa conto nyata utawa Komplek. Asring DDC ngowahi saka frekuensi radio mentahan utawa frekuensi penengah mudhun kanggo sinyal baseband Komplek.

Arsitektur

A DDC kasusun saka telung subcomponents: a synthesizer digital langsung (DDS), kurang-pass filter (LPF), and a down sampler (kang bisa Integrasi menyang kurang-pass filter). DDS ngasilake sinusoid kompleks ing frekuensi penengah (Yen). Pingan saka frekuensi penengah karo sinyal input nggawe gambar pusaté ing jumlah lan prabédan frekuensi (sing nderek saka sifat owah-owahan frekuensi saka transformasi Fourier). The low-pass filters pass the difference (i.e.. baseband) frekuensi nalika nulak image jumlah frekuensi, asil ing baseband perwakilan Komplek saka sinyal asli. Assuming pilihan wicaksana IF lan LPF bandwidth, sinyal baseband Komplek matématis sami kaliyan sinyal asli. Ing wangun anyar, it can readily be down-sampled and is more convenient to many DSP algorithms. Sembarang saringan low-pass sing cocog bisa digunakake kalebu FIR, IIR, lan saringan CIC. Pilihan sing paling umum yaiku panyaring FIR kanggo jumlah decimation sing sithik (kurang saka sepuluh) or a CIC filter followed by an FIR filter for larger down-sampling ratios.

Variasi ing DDC

Sawetara variasi ing DDC mbiyantu, kalebu akeh sing input sinyal saran menyang DDS. iki kalebu:

1. Decision-directed carrier recovery phase-locked loops in which the I and Q are compared to the nearest ideal constellation point of a PSK signal, lan sinyal kesalahan asil punika saring lan panganan bali menyang DDS
2. A daur ulang Costas kang aku lan Q sing kathah lan kurang pass saring minangka bagéan saka BPSK / QPSK daur ulang Recovery operator

Lampahipun
DDCs sing paling umum dipun ginakaken ing logika ing lapangan-programmable susunan gapura utawa aplikasi-spésifik sirkuit terpadu. Nalika nindakake lunak uga bisa, operasi ing DDS, multipliers, and input stages of the low-pass filters all run at the sampling rate of the input data. data iki wis umum dijupuk langsung saka analog kanggo ngowahi digital (ADCs) sampling ing puluhan utawa atusan MHz. CORDIC is an alternative to the use of multipliers in the implementation of digital down converters.

Here is a client’s customized project, 1300~1400 Mhz input down converter to 300-400Mhz.

Gambar transmisi downconverter China Shenzhen supplier， Kustomisasi frekuensi

jeneng: Konverter mudhun gambar
model: LWDC-248258I
Nomer: 1805001
RF + 12V IF
jeneng: Konverter mudhun RF
model: LWDC-3000I
model: LWDC-1400
Input frekuensi 2G~2.7G(2000~2700Mhz)
Ngisor: 1800MHz
Output frekuensi: 200Mhz-700Mhz
SN2405002

Customize Frequency Specification Sheet Download

OF 1750Mhz Down