Radio medium wave antenna MnZn ferrite magnetic rod core 8x100mm

From the point of view of the material used in the magnetic bar, there are two commonly used: one is a manganese zinc ferrite with a magnetic permeability of 400, which is black, and the operating frequency is low and the magnetic permeability is high, which is suitable for medium wave; Another kind of nickel zinc ferrite with an initial permeability of 60, brown, can work with higher frequencies and lower permeability, suitable for short wave. If the nickel zinc type is used in medium wave, the receiving efficiency is lower than that of manganese zinc. Manganese zinc is used in short wave, because of the high frequency loss of the magnetic rod, the acceptance efficiency is also very low.

The ability of the magnetic antenna to receive the signal is related to the length L of the magnetic rod and the size of the cross-sectional area. The longer the magnetic bar, the larger the cross-sectional area, the stronger its receiving capacity, and the higher the sensitivity of the radio. This is because the magnetic field line of the electromagnetic wave emitted by the radio is very dense in the sky, and the larger the cross-sectional area of the magnetic bar, the more number it holds, the greater the voltage induced on the coil, and the higher the sensitivity. On the other hand, the longer the magnetic rod, the greater the strength of the magnetic field line it absorbs, and the higher the voltage induced on the coil, so the higher the sensitivity of the radio. The function of the flat magnetic bar is the same as that of the circular bar with the same cross-sectional area, and the output signal power is the same.

Note: 8x100mm manganese-zinc ferrite it is not rolled round in diameter.

Related Article;

What are the characteristics of Mn-Zn ferrites?

Difference between NiZn ferrite and MnZn ferrite

Dongguan Courage Magnetoelectric Technology Co., Ltd. is a Chinese magnet manufacturer specializing in the production of strong neodymium magnets, ceramic ferrite magnets, motor multipole magnets. We have cooperated with many customers for many years, mainly for the following reasons:

1, We are good at processing high performance, high precision, high difficulty magnet, especially in the field of DC motor magnet, have strong professional knowledge, experience.

2, We have a professional production, sales, design team, based on the industry for more than 14 years.

3, We have advanced magnet production and testing equipment, according to customer requirements to design, production of special requirements of magnet products,

4. The company's products have passed SGS, ROHS, REACH certification and a complete ISO9001 quality management system, specializing in providing high-quality permanent magnet products to customers in various countries.

5. Experience in serving Western, Asian and North American companies, we also have close ties with other regions, fedex or DHL can deliver,

6, Even if our customers do not know much about magnets, we will help and provide accurate product solutions.

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You may be interested in these magnet problems (Q&A) ;

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Yes, we have magnets in stock to help you get samples as soon as possible.

2、How long will it take me to get a reply to your email or inquiry?

We will contact you as soon as possible within 12 hours.

3、Why don't the magnets on your company website say the price?

Magnets belong to functional products, most customers have different requirements for magnets, such as material, shape, performance, tolerance, temperature resistance, purchase quantity, etc., we can customize processing according to your requirements, so we need to clarify your specific needs and then give you a quote.

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See if there is spot stock, if there is immediately can be arranged to send, if there is no need to process in 10-30 days or so, depending on what kind of magnet.

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The magnets we make are mainly delivered to you by sea or air. The packaging is generally neutral packaging, shielded packaging, vacuum packaging, pallets, etc., which can be packed according to your requirements.

Explanation:

a: Express (TNT, DHL, FedEx, UPS, etc.), air freight, sea freight.

b: The weight is less than 40Kgs. We suggest sending it to you by shield box.

c: It weighs between 40 kg and 100 kg. It can be expressed or shipped by air.

d: The weight is over 100 kg. We suggest sea transportation.