Three types control knobs are used in this project: MAIN dial knob – for VFO frequency tune ENCODER knobs – various functions DUAL CONCENTRIC knobs – AF/RF gain control
To bring more professional and stylish appearance we decided to design custom front panel especially for this project. Next question was: Injection plastic mold or machined aluminum First, we made one prototype of machined aluminum in order to test if
Final 50W amplifier is designed using 4pcs. QFET N-MOS FAIRCHILD FQP13N10 transistor. The module consist of three stages: predriver with NXP PD85004, driver in push-pull configuration (2xPD85004) and final unit utilizing 4pcs. (2 by 2 push-pull in parallel) FQP13N10 transistors
This board consist of the following modules: 5 sub PCB with low pass filters chebyshev type for all HF bands. There is place where to be nested one optional LPF subboard (for 160m) High voltage (210V) scheme (voltage tripler) Antenna
My homebrew HF transceiver RGO ONE consists of the following printed circuit boards: Front Panel assembly – plastic front panel, control knobs, FSTN display and keyboards, control board Mother board – fits all connectors on the rear panel, power supply,
One of the most important modules in the home made HF transceiver project is the crystal filter. It is made of individual quartz crystals with matched parameters – Fser. (+/- 15Hz), Lm and Q factor > 100 000. A large
In order to fulfill all the requirements to show different modes and parameters we decided to make our own liquid crystal display. It is designed and built on the well proved – FSTN technology with high visibility and contrast. Technical
Here it is – our home brew transceiver is alive. Die plastic mold is not ready yet so we ordered CNC machined aluminum panel. All the plastic knobs are 3D printed (waiting for the plastic mold) FSTN display is
