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RF High Power BroadBand Test Systems 75 ohms Attenuators
A 75 ohm attenuator is a type of attenuator named for its impedance of 75 ohms.
It is a passive component used to regulate the signal strength of a circuit, A 75 ohm attenuator prevents excessive amplification and distortion of the signal, and prevents failure caused by signal overload.
Its main characteristics include:
1. Impedance matching: The 75 ohm characteristic impedance matches the characteristic impedance of the signal transmission line of the video equipment, television broadcast and cable television system, thus reducing the reflection and loss of the transmission signal.
2. Low distortion: The attenuator can reduce the strength of the signal without introducing additional distortion or signal interference.
3. High reliability: Due to the fact that attenuators are mainly passive components and have no moving parts, they are very reliable and do not require maintenance or replacement.
75 ohm attenuators are commonly used in the following applications:
1. In cable television networks and digital television networks, it is used to regulate signal strength and reduce signal reflection and loss.
2. During the production and transmission of high-resolution and high-definition videos, control the strength of the signal and maintain conversion quality.
3. In broadcast and television signal transmission systems, equipment that adjusts signal strength to match specific distributed signal processing and expand signal range.
4. In television antennas, used to balance the signal power between amplifiers and antennas.
Qualwave supplies various high precision and high power coaxial 75 ohms attenuators cover the frequency range DC~3GHz, can be matched with BNC, F-type, and N-type connectors. The attenuation is mainly ranges from 1 to 40dB. The attenuators with High precision and high power, reliable quality, most products are ROHS compliant, can meet the different needs of customers.
Part Number |
Frequency(GHz, Min.)  |
Frequency(GHz, Max.) |
Power(W) |
Attenuation(dB) |
Accuracy(dB) |
VSWR(Max.) |
Connectors |
Lead Time(weeks) |
|---|---|---|---|---|---|---|---|---|
| Q7A0101 | DC | 1 | 1 | 1, 2, 4, 8, 10, 16, 20 | ±0.5 | 1.1 | F | 2~4 |
| Q7A0302 | DC | 3 | 2 | 1~30 | ±0.6 | 1.25 | F, N, BNC | 2~4 |
| Q7A0305 | DC | 3 | 5 | 1~30 | ±0.6 | 1.25 | F, N, BNC | 2~4 |
| Q7A0101-1 | 0.1 | 1 | 1 | 10, 20, 30, 40 | -2 | 1.15 | F, N | 2~4 |
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