€1.25
Price | Disc. | Quantity | Validity |
---|---|---|---|
€1.25 | 0 % | from 1 piece |
Available
Antenna symmetrizer C0001, channels 1-12+UKF
• Input channels 1-12
• Input impedance: 300Ω
• Output impedance: 75Ω
• Ampedance < 1.5 dB
• Input impedance: 300Ω
• Output impedance: 75Ω
• Ampedance < 1.5 dB
Details
A typical antenna has symmetrical output of 300 ohm impedance, while coaxial cable is unsymmetrical load of 75 ohm impedance. This is why an impedance transformer must be used. The antenna impedance transformer is passive RF device which both transforms the impedance and adjusts the output to standard 75 ohm lines.
Usually the transformer is made classically, using a ferrite core. Sometimes transformers are optimised for operation in a particular channel range, e.g. C0001 for operation in channels 1-12, and symmetisers operating on channels 21-69 are commonly made in PCB form.
Specifications
Product type | Balun | ||
Name | SA I-III | ||
Impedance | input | Ohm | 300 |
Impedance | output | Ohm | 75 |
Loss | dB | < 1.5 | |
Frequency range | MHz | 48 – 230 | |
Operating band | BI, BII/FM, BIII/VHF | ||
Channels | 1 – 12 |