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Hi guys,
I want to design an UHF/VHF 5Watts RF amplifier for my project. Do you have an experimental idea for designing a "high linearity RF amplifier" for transmitting QAM signals?
I think this idea may need a strong knowledge about RF but i assume these days we may find single chip solutions...
O brother... Thank you very much for sharing your knowledge. :idea:
Now i am looking a way to transmit DRM modulated signal over VHF or UHF frequency on mobile radio.:-P
High Quality Audio over 12.5kHZ Bandwidth UHF/VHF Radio Channel
Hi everybody,
I want to transmit high quality sound (not only speech, especially music) over UHF radio. In my country, bandwidth is limited (12.5kHz) because of goverment rules.
I found an UHF radio modem that uses 64-QAM...
Neeed MTB-230 LCD Driving codes via Microcontroller
Hi,
I want to drive MTB-230 series 128x64pixels COG(Chip-on-Glass) LCD with 0.50mm Pitch FFC/FPC connector using a MCU!
Is there anyone has knowledge how to drive this LCD? I am looking especially for C code library for driving it...
Raspberry Pi's $35 Linux computer on track to launch later this month
The first model of the Raspberry Pi Foundation's low-cost Linux computer will likely be available for purchase later this month. The organization **broken link removed** these days that manufacturing on the first batch is set...
8-) Hi gentlemen,
I want to ask a question and take your precision ideas,
I designed a basic MOSFET H-Bridge for a DC motor in ISIS. Then power on circuit, ignited gates of Mosgefets properly all the things normal. But i saw a stange current flowing when i release ignition button on both of...
Please look at the picture,
1-)For a GSM Tx current wavefrom with 4.6 ms period, is LT1529 DC-DC converter's transient response enough?
It responses about within 30µs~150µs to Δ2A load difference with a Cin=3.3µF and Cout=47µF capacitors!
Any idea?
2-) And finally i have to ask: I decided...
Low Quiscent Current, High Efficiency when Low Loaded DC-DC Converter Suggestion?
I am using a MCU and a GSM module in my project. MCU consumes 250mA (max), GSM module consumes 400mA(average) and while transmitting RF signals consume 2A (peak).
And also MCU consumes 1mA, GSM module consumes...
Hi guys,
Here is the SIM900 modules Real Time Kernel (Philips RTK-E) Operating System programming documents...
Maybe helpful to someone...
Last Edit: Fixed download problem
Hi gentlemen,
I want to ask an interesting question:
I want to solder "RG-178 50 Ohm coaxial cable" direclty to SIM900 module's antenna output pins and another part of cable soldered to SMA connector. In this way, i want to by-pass RF PCB trace design (impedence matching) process.
I saw...
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