Transmisi Video Nirkabel RF Frékuénsi Digital Turun Parabot Parobah COFDM Transfer frékuénsi 2.4G ka 600Mhz BDC low

Digital Turun Parabot Parobah

Transmisi Video Nirkabel RF Frékuénsi Digital Turun Parabot Parobah COFDM Transfer frékuénsi 2.4G ka 600Mhz rendah

nunjuk jual

1. frékuénsi input ti 24000 mun 600MHz (1800Mhz handap)
2. rubakpita tinggi
3. noise fase low
4. stabilitas frékuénsi luhur

spésifikasi

RF Range Frékuénsi: 2400 MHz
IF Range Frékuénsi: 600 MHz
balik deui Loss:-12 dB
frékuénsi akurasi: ± 10 ppm
gambar tampikan: 60 dBc
Flatness: ± 0,5 dB (8rubakpita MHz)
konversi Gain: 25 dB
fase Noise (dBc / Hz)
dBc / Hz @ 1KHz ≤-80
dBc / Hz @ 10KHz ≤-90
dBc / Hz @ 100KHz ≤-100
suplai tegangan: 10~ 15V
kakuatan Ayeuna: 100 ma
Operasi Range Suhu: +25 ℃

palabuhan

RF IN: SMA-50K
IF OUT: SMA-50K
Kakuatan + 12V: iteuk
GND: lug Soldering

Catetan

1. Konverter henteu kedah nambihan panguat sora-rendah di tungtung tukang.
2. Test sabenerna: test tutup-loop handapeun frékuénsi 2.4GHz / rubakpita 4MHz, kepekaan narima bisa ngahontal -105dBm.
3. frékuénsi input ngarojong 1 ~ 3GHz. (Urang bisa mantuan ngaropéa).
4. Output frequency supports 300~700MHz. (Bisa ngarojong ngaropea).

About the above video:

Our most popular products are wireless video transmitters and receivers. Sanajan, 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. One customer requested that we customize the RF frequency down converter for his 2.4G wireless video transmitter. So the input frequency is 2.4GHz, the output frequency is 600MHz, and the lowdown frequency is 1800MHz. We created the sample in accordance with his specifications. So I showed him a simple video that showed the 2.4G transmitter and 600Mhz receiver working correctly. If you have a similar requirement, such as 1-3G frequency input and 300-700Mhz output, please contact us for a custom solution.

1. Naon RF frékuénsi RF block-handap digital converter (BDC)?

Hiji blok frékuénsi RF downconverter (BDC) pikeun pamancar video nirkabel nyaéta alat anu bisa ngarobah rentang frékuénsi luhur ka rentang frékuénsi low.

Biasana dianggo dina sisi pamancar pidéo nirkabel. Salaku conto,

• Ti 5.8G ka 2.4G turun konverter
• Ti 2.4G ka 1.2G turun konverter
• Ti 1.2G ka 600Mhz handap converter

Ieu alatan kanyataan yén frékuénsi transmisi nirkabel di loba nagara atawa wewengkon diwatesan ku hukum jeung peraturan lokal..

Teu diidinan dianggo dina rentang frékuénsi anu khusus.

Pikeun ngarobah frékuénsi operasi tina pamancar jeung panarima, down-konversi atawa up-konversi diperlukeun. Pastikeun frekuensi pangiriman saluyu sareng undang-undang sareng peraturan lokal.

There is also the case where the professional receiving frequency is fixed, salaku conto, between 300-800Mhz.

In order for the transmitter's frequency to be paired, the frequency of the 1.2G transmitter must be reduced.

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

2. rentang frékuénsi input abdi bakal perlu jadi 2.0Ghz mun 2.7Ghz, need a downconverter to 200 Mhz to 900Mhz. Gain konversi ideally bakal 30db moal 25db. Bakal kieu jadi gampang for nu maneh mun?

nuhun, 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.

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

4. Do you have or designed for MMDS applications? ti 3400 -3600MHz, The S-Band is converted to the UHF range 400 ka 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 GHz? Can you make a UP converter? ti 1,25 GHz to 3.4 GHz?

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?

tatanya: 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.

nuhun, Here is our specification for your references.

Frequency Down Converer Block specification sheet

barang	spésifikasi
input frequency	950 MHz ～1550 MHz
output frequency	350 MHz ～850 MHz
Local frequency	1800 MHz
bentang	500MHz
noise Gambar	≤1.5dB
kauntungan	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
Panganteur RF	SMA-50KFD
ukuran	108*48*15mm
Power supply mode	Socket power supply

Frequency Up Converer Block specification sheet

barang	spésifikasi
input frequency	350 MHz ～850 MHz
output frequency	950 MHz ～1550 MHz
Local frequency	1800 MHz
bentang	500MHz
noise Gambar	≤1.5dB
kauntungan	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
Panganteur RF	SMA-50KFD
ukuran	108*48*15mm
Power supply mode	Socket power supply

tatanya: 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, pikeun dipaké kalawan link OFDM RF urang sorangan.

Abdi milarian downconverter khusus, pikeun dipaké kalawan link OFDM RF urang sorangan:

50ohm input RF: 1.435 ka 1.525 GHz

75 ohm IF output: sagala pita frékuénsi, antara 100MHz jeung 900MHz

frékuénsi LO pikaresep: 1846MHz

gain low: ngeunaan 28dB

gain luhur: ngeunaan 43dB

DC Powered ti IF port kaluaran, 12-24rentang vDC

nuhun, we can customize it for you.

Naon DDC

Dina pamrosésan sinyal digital, a digital handap-converter (DDC) ngarobah hiji digitized, sinyal kawates pita ka sinyal frékuénsi handap dina laju sampling handap guna nyederhanakeun tahapan radio saterusna.. Prosésna preserves sakabeh informasi dina sinyal aslina kirang nu mana ieu leungit mun rounding kasalahan dina prosés matematik. Asupan jeung kaluaran sinyal tiasa sampel nyata atawa kompléks. Sering ka DDC ngarobah tina frékuénsi radio atah atawa frequency panengah ka handap ka sinyal pita dasar kompléks.

gawena undagi

A DDC diwangun ku tilu subcomponents: a Ki Hajar Dewantara digital langsung (DDS), a low-pass filter (LPF), and a down sampler (nu bisa jadi terpadu kana low-pass filter). DDS ngahasilkeun sinusoid kompléks dina frékuénsi panengah (IF). Multiplication of frékuénsi panengah jeung sinyal asupan nyiptakeun Gambar dipuseurkeun di jumlah na bédana frékuénsi (nu kieu tina sipat-shifting frékuénsi transformasi Fourier). The low-pass filters pass the difference (i.e.. baseband) frékuénsi bari kalam gambar jumlah frékuénsi, hasilna dina baseband ngagambarkeun kompléks sinyal aslina. Anggap pilihan judicious IF na LPF rubakpita, sinyal baseband kompléks sacara matematis sarua jeung sinyal aslina. Dina formulir anyarna, it can readily be down-sampled and is more convenient to many DSP algorithms. Sakur saringan low-pass anu cocog tiasa dianggo kalebet FIR, IIR, jeung saringan CIC. Pilihan anu paling umum nyaéta saringan FIR pikeun jumlah decimation anu rendah (kirang ti sapuluh) or a CIC filter followed by an FIR filter for larger down-sampling ratios.

Variasi dina DDC

Sababaraha variasi dina DDC mantuan, kaasup loba nu input signal eupan balik kana DDS. ieu kaasup:

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, jeung sinyal kasalahan anu dihasilkeun ieu disaring tur fed deui kana DDS
2. A loop Costas nu I jeung Q nu dikalikeun jeung low pass disaring salaku bagian tina hiji BPSK / QPSK loop recovery pamawa

palaksanaan
DDCs anu paling ilahar dilaksanakeun dina logika dina widang-programmable arrays Gerbang atawa aplikasi-spésifik sirkuit terpadu. Bari implementations software oge mungkin, Operasi dina DDS, multipliers, and input stages of the low-pass filters all run at the sampling rate of the input data. data ieu ilahar dicokot langsung ti analog ka converters digital (ADCs) sampling dina puluhan atawa ratusan 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.

Pangiriman gambar downconverter Cina Shenzhen supplier， Frékuénsi kustomisasi

ngaran: Gambar downconverter
modél: LWDC-248258I
Panomeran: 1805001
RF + 12V IF
nami: RF Turun Parabot Parobah
model: LWDC-3000I
model: LWDC-1400
Input frékuénsi 2G~2.7G(2000~2700MHz)
Handapeun: 1800MHz
Output frékuénsi: 200Mhz-700Mhz
SN2405002

Customize Frequency Specification Sheet Download

OF 1750Mhz Down