High Attenuaiton Filter for Ham Radio User

Amateur radio is a popular technical hobby. Radio amateurs use a wide variety of radio communications equipment to communicate with each other and provide emergency communications for their communities. Radio amateurs have their own communications satellites. They can talk with astronauts aboard the International Space Station. They are often involved with cutting-edge experimental wireless technology. It is a very popular interest with over six million people involved worldwide.

Amateur radio satellites have interference problems by other amateur radio stations. And there are variety of apparatus have caused severe interference to amateur satellites. It could result in mission failure. Therefore, they will need high attenuation filter to protect their networks from interference.
 

Attenuation curve or transmission curve means a curve relating the value of a radiation quantity and the thickness of material traversed by the radiation. Attenuation limits the range of radio signals. Attenuation typically is measured in decibels (dB) or voltage. Attenuation can happen with any type of cable or wireless connection, including copper cables, fiber cables, satellite, radio signals, wireless networks. Attenuation is an important consideration in wireless telecommunication. Attenuation can occur due to a variety of factors. It may cause signals to become distorted or indiscernible. E.g., Wi-Fi signal and strength getting noticeably weaker the further that your device is from the router.
The problem of amateur radio satellites interference is likely from radio, TV broadcasts, aircraft communications, transceiver, repeater, radar, two way radio, etc.

 
Temwell has 26 years of experience in designing, producing and marketing helical band pass filters. The helical band pass filters are used λ/4 wavelength technology to design. Our helical band pass filters have high attenuation characteristics. The steep attenuation could provide highly effective radio noise suppression.

Temwell special provides 146 MHz, 232.5 MHz, 435 MHz, 915 MHz, 1270 MHz and 1282.5 MHz standard band pass filters for ham radio users. The helical band pass filters have excellent noise interference suppression and do not affect the quality of communication. All models are available from stock. Welcome to visit our Shopline Store to check and take your prefer filter.