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Construction Notes
K7MDL edited this page Jan 6, 2025
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5 revisions
Under Construction
Connectors and displays
- As 15-pin HD D-Sub will have 6 band enable outputs, 6 PTT outputs, and 1 PTT input.
- Phono jack for PTT-Input (same as the D-Sub input line).
- 2x 12V coaxial power jacks. Power is passed through to the 905 for a single power cable connection.
- USB Host port
- Status indicators. Several options possible. In reality can choose at compile time, I will have them all working. A display can be surface mounted in a 3D printed bezel outside the box lid, or mounted on the PCB and visible through a hole cut in the lid. A 3D printed bezel can be added for finish. Options: a. 14 LEDs (power, input and 12 outputs) b. M5AtomS3 with 0.95" color LCD - has time, date, frequency, band name, PTT icon, and 8-digit grid square. c. 128.32 OLED (SSD1306) - will have to rotate pages to get info out. d. some other screen TBD
- Optional CI-V analog on 1/8" jack. This feature does not exist yet, but I am thinking this would be a useful feature for some with CI-V peripherals, antenna tuners and such. The added circuitry is minimal and easy if considered at PCB design time. It can be left unpopulated.