Моды QYT KT-7900D shopantenna.blogspot.com

Modifications in the QYT KT-7900D transceiver Get access to unique life hacks and developments by linking    / @laboratoryw   Product catalog in the Antenna online store https://shopantenna.blogspot.com - - - - - - Timings in the video: 00:19 Programmer circuit and how to open it 01:33 Measuring sensitivity at 2 m using GSS 03:10 Measuring sensitivity at 70 cm 04:35 Measuring sensitivity on SATCOM 10:15 Measuring power on SATCOM with a Nissei DG-503 wattmeter on a non-inductive equivalent 12:10 Measuring power on 2m 16:05 Power measurement at 70cm 18:07 Power measurement at PMR 19:30 Power-Pole power connectors and fuse removal 20:00 Second cooler installation 21:28 Cooler noise reduction 22:07 Ventilation improvement 22:20 RF output splitting and power conservation at 145 MHz 23:40 Second RF static protection 24:40 N-type mod and PL-259 replacement 25:00 IF output to SDR receiver 25:55 Correct heatsink installation on power amplifier transistor 28:42 SMA and Meritec 700212-02 cable 29:10 Power smoothing capacitor replacement 29:32 Chassis contact surface polishing and KPT-19 thermal paste 30:09 Power amplifier current reduction (resistance increase) shunt) 30:50 Summarizing - - - - - - - - - - - - - - - - - #LaboratoryW #KT7900D #SATCOM