Difference between revisions of "HW-9 VFO"
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| Line 9: | Line 9: | ||
* Lack of resolution | * Lack of resolution | ||
* Fits within HW-9 VFO Box | * Fits within HW-9 VFO Box | ||
| − | * | + | * Controls frequency with rotary encoder |
** 10 Hz steps | ** 10 Hz steps | ||
* DD1306 OLED Display | * DD1306 OLED Display | ||
| + | ** I2C Interface | ||
** "Curved" display | ** "Curved" display | ||
* Uses RIT control on HW-9 | * Uses RIT control on HW-9 | ||
** +/- 1 KHz RIT | ** +/- 1 KHz RIT | ||
* Blue Pill Microprocessor | * Blue Pill Microprocessor | ||
| + | ** Arduino compatible | ||
| + | ** 3.3V | ||
* Understands band switch sor MHz displayed | * Understands band switch sor MHz displayed | ||
* Si5351 Oscillator | * Si5351 Oscillator | ||
| + | ** I2C Interface | ||
** 3 Outputs | ** 3 Outputs | ||
*** Transmit frequency | *** Transmit frequency | ||
*** Receiver frequency include offset plus RIT | *** Receiver frequency include offset plus RIT | ||
*** BFO frequency | *** BFO frequency | ||
Revision as of 15:42, 13 September 2020
This is a work in process - Gathering pieces.
Features
- Replace HW-9 internal VFO with a digital VFO
- HW-9 VFO has issues
- Mechanical issues
- Drift due to thermal
- Lack of resolution
- Fits within HW-9 VFO Box
- Controls frequency with rotary encoder
- 10 Hz steps
- DD1306 OLED Display
- I2C Interface
- "Curved" display
- Uses RIT control on HW-9
- +/- 1 KHz RIT
- Blue Pill Microprocessor
- Arduino compatible
- 3.3V
- Understands band switch sor MHz displayed
- Si5351 Oscillator
- I2C Interface
- 3 Outputs
- Transmit frequency
- Receiver frequency include offset plus RIT
- BFO frequency
