Tipa

The Teroz 428X antenna amplifier with filters above and below the K23 to K48 operating band filters out a lot of interfering frequencies caused by mobile phones in the 5G (698 to 790MHz) + LTE (790 to 862 MHz) + GSM (850 to 960MHz) + CDMA (455 / 465MHz) + UFON (410/420 MHz) + Track security signaling (approx. 469 MHz).
It is a selective amplifier with low-noise high-frequency transistors of the BFP, BFR series. There is a selective combination of high and low pass filters at the input. The noise of the amplifier will increase by the pass-through attenuation of the low-pass filter, but at the same time the resistance to overdrive by interfering signals by mobile phones in the 5G, UFON, CDMA, LTE and GSM bands will increase. Thanks to the dimensions and the larger number of components used, an exceptional steepness of the filter edges and attenuation outside the required passband is achieved.


Technical parameters :

- operating frequency : 486 MHz to 694 MHz
- transmitted channel band : K23 to K48
- G gain : 22 dB
- Noise F : 4 dB
- Max output level for 2 TV channels : 95 dBμV
- Input and output impedance : 75 Ω
- power supply to output connector : 12V/40mA
- throughput for supply voltage to input : no
- input and output connector : F female
- box dimensions : 100 x 50mm
- installation : indoor



Transmission characteristics (var. K23-59) :

frequency (MHz) +gain (-attenuation) (dB)
464.0 -18.4
494.0 +21.8
702.0 +21.2
726.0 -13.5
791.0 -26.4
850.0 -28.1
900.0 -31.7
950.0 -39.1