Finally finished a power amplifier for Ultimate3S. The idea I had found on net, see page VK3PE . I contacted Glen and he gave me needed GERBER files to order PCB. Used Seeedstudio.com and got 5 pcs very quickly. Had some problems to complete components, see my story about fake RD166HHF1 devices. Finally ampilfier is ready and working. I […]
Author Archives: Jerzy
I bought a pack of 5 x RD16HHF1 HF power mosfets via eBay from good-module based in China and ended up with a problem, devices were supplied but they weren’t RD16HHF1’s ! 🙁 I fitted one device on the amp PCB and applied power. The power supply went into overcurrent shutdown straight away! Measurements indicated that […]
After updating soft to Release E5 for sometimes ago I decided to do hardware modification as well. For instruction and explanation I recommend go to TRX Bench on YouTube – https://www.youtube.com/watch?v=YaGy4pUxkHc . The rig after modification is working excellent and issue with low power is solved.
Today had a sked with OZ/LA8GT. Tore was in JO47md (Bulbjerg 47 m asl). Unfortunately weather in OZ was bad, wind 40 km/t and Tore had problems to keep all on the place. No QSO with him. Later I manage a contact with OZ9PP Peter in JO47va (Aalborg) on CW with 559 both side. New […]
Today me and Tore LA8GT activated JO38xb on 3cm band. QTH is island Flekkerøya with connection to fastland and location is old military radar station place, now it is free area . Very good take off to SM and OZ . Tropo condition was below expectation. Got only QSO with OZ7Z in JO44. Heard SK7MHI very […]