Description <br> Upgrade content: 1. Add audio amplifier to solve the problem of extremely low SSB single-sideband volume, with obvious effect. <br> 2. Redesign FM and HF bandpass filters, FPC board with IPEX interface, simpler installation <br> 3. Add ESD tube at the input end for electrostatic protection and strong signal protection during dual-antenna UV segment transmission. <br> 4. Use FPC soft board with a thickness of 0.12mm, safe and reliable without short circuit, and installation does not support speakers. <br> 5. Use high-quality high-frequency winding chip inductors with high Q value, low internal resistance and strong filtering selectivity. <br> <br> Dual antenna solution, add an additional level of bandpass filtering at the antenna input <br> The FPC soft board uses a double-sided disk, which is more convenient to connect to the machine. <br> Applicable to K5/ K6 with S14732 soft board FPC, dual filtering (pre- frequency/bandpass) + dual amplification (high-frequency/audio) <br> Applicable models: Applicable to UV K5/K6 <br> Material: ABS <br> colour: As shown <br> <br> Package Contents: <br> 1 x Walkie-talkie modification board <br> <br> Only the above package content, other products are not included. <br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>