retekess: Retekess V115 - New chassis SWR-710KTR-C 2023.10.11

Retekess has released a new redesigned chassis in 2023 with updated firmware v2.3.

The PCB assembly reference is Kaimeda SWR-710KTR-C 2023.10.11

The circuit design is completely modified with new components when compared with older versions, and the PCB layout has been rearranged to minimize internal noise interference into the antenna.

A CTXC14B5A media controller (IC1) with a P43180/TJ25008M flash memory (IC2) manages a K.T0935R DSP FM-RDS stereo MW SW high sensitivity multiband receiver (IC3) driving a MIX2018 audio power amplifier (IC4).

The RF front-end uses a new design with two SGM3157 SPDT RF analogue switches (IC5, IC6) that connects the internal magnetic antenna to the DSP receiver only when required, and the SW front-end uses one J8/S9018 NPN transistor amplifier stage (Q2).

When compared with the older SWR-710SV2 version, this new V115 SWR-710KTR-C radio shows more sensitivity on all bands and lower noise.

 

 

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