SA IV-V Antenna Impedance Transformer (balun)

Code: C0002
€1.05
Price Disc. Quantity Validity
€1.05 0 % from 1 piece
Available
Antenna symmetrizer C0002, channels 21-69 (printed)
• Input channels 21-69
• Input impedance: 300Ω
• Output impedance: 75Ω
• Ampedance < 1.5 dB

Warranty

3-year warranty.

Support

Details

A typical antenna has a symmetrical output with an impedance of 300 ohms, while the coaxial cable is an asymmetrical load with an impedance of 75 ohms. Therefore, in order to connect the antenna to the coaxial cable while maintaining matching (using devices of the same impedance throughout the system), it is necessary to use an intermediate element, i.e. a symmetrizer. A symmetrizer is a passive device that uses a transformer to change the impedance and transition from a symmetrical line to an asymmetrical line.
Usually, such transformers have standard construction with ferrite core. Some transformers are optimized for working in a particular band, e.g. C0001 for channels 1-12, while baluns working in channels 21-69 are mostly made in the form of flat PCB impedance transformers, such as the C0002 item.

Specifications

Product type Balun
Name SA IV-V
Impedance input Ohm 300
Impedance output Ohm 75
Loss dB < 1.5
Frequency range MHz 470 – 790
Operating band BIV, BV
Channels 21 – 60