A common test is output power of a transmitter, or a stage within a transmitter. At QRP power levels of 5 watts or less, it becomes very practical to combine a dummy load and power meter into a terminating power meter. Here is how I built one. The circuit itself is very simple, se...
For now we'll cover the transmitter portion of the transceiver; next month we'll look at the receiver and then discuss error correction code. Meanwhile, be aware that among other things you'll need an electrical mixer, an RF oscillator, and a microprocessor.WISE GUY...
This allows the MDO4000 Series to show the timing relationships between, say, the serial data command to an RF transmitter and the resultant RF burst. A power supply voltage dip during a device state change can be analyzed and correlated to the impact on the RF signal. Figure 6 shows an ...
RF switch The STM32WL Nucleo board embeds an RF 3-port switch (SP3T) to address, with the same board, the following modes: • high-power transmission • low-power transmission • reception Table 3. BSP radio switch Function int32_t BSP_RADIO_Init(void) int32_t BSP_RADI...
结果1 题目 When adjusting an RF filter on a transmitter using a dummy load, how much watts dissipation should it stand to test a 150 watts transmitter?D A. 75 watts B. 300 watts C. 50 watts D. 150 watts 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
When the mouse hit the scene -- attached to the Mac, it was an immediate success. There is something about it that is completely natural. Compared to a graphics tablet, mice are extremely inexpensive and they take up very little desk space. In the PC world, mice took longer to gain gro...
HowTo,DIY,Basics Testing RF Transmitter and Receiver Circuit After publishing the article Make a simple RC car I have received a lot of comments and e-mails from readers who have faced some difficulties while trying to make the circuit by themselves. I have complied a small list of testing ...
Part 1: What is HackRF? HackRF is an SDR or Software Defined Radio device that can receive or transmit radio signals from 1 MHz to 6 GHz. In simple words, it is a programmable radio receiver and transmitter that can be used for many purposes. ...
2.6 Universal asynchronous receiver transmitter (UART) It is a serial communication protocol used for asynchronous data transmission. UART utilizes two wires: TX for transmission and RX for reception. You can select this transmitter for point-to-point communication in microcontrollers, GPS modules, and...
By adding a laser or magnetic beam transmitter, NASA said it could push speeds to 18,600 mi/sec (30,000 km/sec), which is one-tenth the speed of light. At those speeds, interstellar travel would be an almost certainty. Frequently Asked Questions Can solar sails be used for interstellar...