Online Shopping at a cheapest price for Automotive, Phones & Accessories, Computers & Electronics, Fashion, Beauty & Health, Home & Garden, Toys & Sports, Weddings & Events and more just about anything elseĮnjoy ✓Free Shipping Worldwide! ✓Limited Time Sale ✓Easy Return. The actual work does not require too high the operating frequency of the transmitter, and it can cover all the medium wave frequency bands. The effects of adjusting the high and low-end frequencies are interrelated and require repeated adjustments to stabilize. signal, which is adjusted for high-end frequencies. Adjust the receiving frequency of the radio to the highest end of the medium wave, usually 1605kHz, turn the transmitter frequency dial to the high end of the frequency, and then use a screwdriver to turn the screw on the top of the variable capacitor (pre-adjusted capacitor), so that the radio receives the transmitter's frequency. Use a digital tuning radio with medium wave band, adjust the receiving frequency of the radio to the lowest end of the medium wave, usually 525kHz, turn the transmitter frequency dial to the low end of the frequency, and then move the coil on the magnetic rod to make the radio Receive the signal from the transmitter, which is to adjust the low-end frequency.
Here we introduce the method of using the radio as an instrument to adjust. To adjust the transmission frequency coverage, you can use a frequency meter. At this time, the transmitter can work normally, but the variation range of the transmission frequency must be somewhat different from the frequency range of the medium wave, which needs to be adjusted. When the modulation degree is as large as possible, the waveform is not distorted as much as possible.Īfter the welding of the kit is completed, connect the power supply and modulation signal and turn it on, and the signal of the transmitter can be scanned by the normal working medium wave radio. In this case, only the oscilloscope (connected to the Monitor terminal) The probe) is slowly debugged until the waveform is close to perfect and stable in the entire mid-band. If the player replaces the triode, including imitating the components without using this kit, it is very likely that the oscillator will not vibrate, the oscillation waveform is poor, and the sound quality is poor. As long as all components are properly welded, they can work well, and only need to adjust the band coverage. The resistance parameters and the matching transistor parameters have been matched well. The circuit diagram and circuit board diagram of this kit are shown below. The antenna magnetic rod is very brittle and will break when knocked and collided. The antenna magnetic rod is slightly bent, the bigger the size, the more obvious it is, but it has no effect on the performance. >Now updated to version 1.2r>The quadruple variable capacitor is gradually being replaced by the double variable capacitor, and the quality is better300pF) have large errors, the nominal error can reach +80%-20%, and the temperature stability is not good, suitable for filtering, coupling and other requirements. As well as ore radios, it can also be used as an instrument for debugging medium wave radios. It can be used to test ordinary medium wave radios in places where the radio signal is insufficient. It uses a magnetic rod to transmit electromagnetic waves without an external antenna. Model 2: v1.2r finished product (including power supply board)ĪMT-MW207 medium wave transmitter is a simple AM signal source suitable for amateur electronics enthusiasts and radio enthusiasts.
Model 1: v1.2r version kit (including the power supply part) In addition, you can choose in between the Wholesale price ranges, Wholesale brands, or Wholesale requirements that you think are most important for your favorite item. We also have thousands of Medium Wave Transmitter Experiment AM Radio Transmitter DIY Kit To Test Ore Radio Offers, always with the reasonable price and top quality. We offers a wide variety of similar Wholesale products on Mbctryckluft, so you can discover just what you’re searching for.
So you only have to Pay US $17.65 for Medium Wave Transmitter Experiment AM Radio Transmitter DIY Kit To Test Ore Radio item. You can get an Extraordinary 8% Off Discount offers and Save US $1.53 when you purchase this product in Sale Today at Aliexpress. Buy Medium Wave Transmitter Experiment AM Radio Transmitter DIY Kit To Test Ore Radio from Seller Shop2956052 Store with reasonable price and best guarantee on Mbctryckluft.