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50ohm SMA Adjustable attenuator 18GHz stepped attenuators
2W Knob variable step attenuators with 1 dB step N/SMA/4.3/10 connector optional frequency 3GHz/4Ghz/6Ghz/18GHz,ODM support [View Details] -
SMA N 4.3-10 Adjustable attenuator step attenuators 0-100dB 50ohm
SMA N 4.3-10 Adjustable attenuator step attenuators 0-100dB 50ohm [View Details] -
50W RF coaxial attenuator,coax attenuator 1-50dB 3GHz 4GHz 6GHz 10GHz 12GHz 18GHz
50W RF coaxial attenuator,coax attenuator 1-50dB 3GHz 4GHz 6GHz 10GHz 12GHz 18GHz [View Details] -
High quality ROHS 100W Coaxial attenuator 1-60dB 3G/4G/6G/8G
High quality ROHS 100W Coaxial attenuator 1-60dB 3G/4G/6G/8G [View Details] -
Low PIM 4.3/10 MINI DIN 2/3/4 way Power Divider Power Splitter 698-2700MHz
Low PIM 4.3/10 MINI DIN 2/3/4 way Power Divider Power Splitter 698-2700MHz [View Details] -
50W RF attenuators DC to 3Ghz
mini DIN male to N female connector
1db,3db.6db.10db.15db.20db.30db,40db,50db all avaliable.
OEM is welcome
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100W DIN to N coaxial attenautor Rf attenuador coax attenuatore DC-3Ghz 1-50dB 50ohms
100W fixed attenuator DC to 3000Mhz DIN male to N female connector 1db,3db.6db.10db.15db.20db.30db,40db,50dbb all available OEM is welcome [View Details] -
50W DIN to N coaxial attenuator coax attenuatore 3Ghz 20db.30db.40db 50ohms
50W RF attenuators DC to 3Ghz DIN male to N female connector 1db,3db.6db.10db.15db.20db.30db,40db,50db all avaliable. OEM is welcome [View Details] -
2W SMA fixed attenuator coaxial attenuator 50dB 60db 6Ghz 50ohm
2W SMA coaxial fixed attenuator DC 6Ghz Male to female connector 1db,3db.5db,6db.10db.15db.20db.30db,40db,50db,60db all available OEM is welcome [View Details] -
9 Tips for Buying Attenuators/RF Teleworld
Attenuators are application specific, passive electronic devices, used to reduce a signal level or provide a load to electronic devices for testing. Because of their specificity, there are a large number of different types of attenuators available on the market. It is important to select an attenuator that perfectly matches the application it is intended for, because using the wrong attenuator can damage the equipment it is connected to. The most common use of attenuators is for testing radio frequency (RF) devices. These devices must be connected to a dummy load for testing, so that the energy produced by the final amplifier has somewhere to go. Attenuators are also used for audio frequency (AF) to reduce signal levels between devices, or the output signal level from an amplifier, before being connected to a speaker. All attenuators reduce the signal entering them without distorting or changing the signal in any way. If the input is a waveform (as it typically is), the only difference between the input waveform and the output waveform is the amplitude; everything else remains the same. The extra energy is absorbed by the attenuator and dissipated as heat. Some common uses for attenuators are: Providing a dummy load for testing radio equipment Matching devices when the output of one is too high for the input of the other Reducing the output of condenser microphones Reducing speaker volume, while letting amplifiers run at max power Lowering light intensity for fiber optic communications Impedance matching of devices that need to be connected together While there are stepped and variable attenuators on the market, most attenuators are fixed, only providing a known level of attenuation for a known frequency range. Tip #1 - Know the Application The first consideration when looking for an attenuator is how it will be used. Attenuators are job-specific items, so it is important to know the application. This means that you need to know all the information you can about the equipment the attenuator will be connected to. This includes: Connector type Frequency Wattage Impedance needed Balanced or unbalanced lines? Level of desired attenuation Tip #2 - Always Buy Attenuators Oversize Attenuators are rugged devices. However, they can be damaged if too many watts of power are run through them. The solution to this is to always buy an attenuator that has 20 percent more capacity than needed. That means that an attenuator bought for use with a 100 watt radio should be rated for at least 120 watts. This precaution prevents the possibility of the attenuator becoming damaged by power surges. An excessive power creates more heat than the attenuator can dissipate. While the attenuator may function after being overheated, its accuracy is destroyed. Tip #3 - Never Modify an Attenuator Although attenuators are simple devices, they should not be modified. Changing the connectors on an attenuator can eliminate the shielding provided by the attenuator's case, allowing spurious signals into the RF being transmitted. Also, removing part of the heat sink on a large attenuator reduces its cooling capacity, which can lower its power capacity and damage the device. Tip #4 - Avoid Using Adapters with an Attenuator It has been said that with the right adapters anything can be connected to anything. While this is true, it doesn't mean that those two things should be connected together. Often, when adapters are used to connect attenuators, it's because the wrong type of attenuator is being used for the application. The attenuator comes installed with the proper connector for the application(s) for which the attenuator is designed. Adapters also increase the likelihood of poor connections. There's a saying in the radio and television industry that 95 percent of all technical problems are connection problems. Therefore, every connection that can be eliminated gets rid of an opportunity for problems. Tip #5 - Double-check the Frequency Attenuators are designed for use within a particular frequency range. When used outside of that range, the amount of attenuation may not be correct. Higher radio frequencies change the impedance of an attenuator, which changes the amount of attenuation produced. It is better to buy another attenuator made for that frequency range than to use the wrong one. Double-check the frequency range of the equipment and the frequency of the attenuator itself. Tip #6 - Double-check Impedances Attenuators are often used for impedance matching, as well as attenuating signal strength. Amplifiers, such as those in audio and radio equipment, are designed to work with a specific impedance across the terminals. When two devices that are to be connected have different impedance requirements, an attenuator that can accommodate these differences must be used. If impedance requirements aren't marked on the equipment case, they should be listed in the owner's manual. Tip #7 - Step and Variable Attenuators are Great for Testing, but Poor for Permanent Applications Many technicians like working with stepped or variable attenuators for testing and calibration. These provide a number of different settings for the technician to choose from, which eliminates the need for a large assortment of attenuators to be changed out during testing. However, these adjustable attenuators shouldn't be used in a permanent, fixed application. It is much too easy for someone to accidentally change the setting on the attenuator, ruining the calibration and damaging the equipment. While a stepped or variable attenuator might be used to determine the best attenuation for a particular application, it should then be removed and replaced with the appropriate fixed attenuator. Tip #8 - Make Sure it's not Burnt When buying used attenuators, it's important to verify that the attenuator hasn't been overheated at any time. Overheating can change the value of the attenuator, increasing or decreasing the amount of attenuation provided. Fortunately, if an attenuator gets hot enough for this problem to occur, the attenuator's case usually becomes discolored as well, or rather darker at one end than the other. Don't buy an attenuator that has been overheated in this manner. Tip #9 - Never Use an Attenuator Without Ground Attenuators, especially RF attenuators, are normally used with coaxial connectors. This provides two conductors: 1) The central "hot" pin, and 2) the shield, which is connected to ground. Attempting to use the attenuator with just the pin connected and the ground disconnected prevents the circuit from being complete. This can damage the equipment being tested or keep it from working all together. Connectors should always be attached firmly to ensure a solid physical and electrical connection. RF attenuators,fixed attenuators,coaxial attenuators,Microwave attenuators,passive attenuator DC to 3Ghz/4Ghz/6Ghz/18Ghz power range from 2W.5W.10W.20W.25W.30W.50W.100W.200W.300W.500W Attenuation range from1db,2db, 3db.5db,6db.10db.15db.20db.25db.30db.40db.50db SMA/N/BNC/DIN connector all available OEM is welcome [View Details]
