Difference between revisions of "Davac5"
(→Circuit diagram) |
(→Circuit diagram) |
||
Line 58: | Line 58: | ||
==Circuit diagram== | ==Circuit diagram== | ||
[[Image:Davac5.0-schema.png|none|frame|Circuit diagram of Davac 5.0]] | [[Image:Davac5.0-schema.png|none|frame|Circuit diagram of Davac 5.0]] | ||
+ | |||
+ | ==Connecting to the radio== | ||
+ | * '''MOD''' - modulation output to the microphone input of radio | ||
+ | * '''PTT''' - Push to talk output to switch Radio to the transmit (active low) | ||
+ | * '''GND''' - One ground (ground plane on the bottom layer) |
Revision as of 23:19, 14 October 2023
Davac 5 is new design of voice/SSB keyer for Tucnak. Although version 5 may appear to be a successor to version 4, is not true. It brings some advantages but also lacks some features.
To choose the version that best suits your requirements, please look at the table:
Davac 5 | Davac 4 | |
---|---|---|
Size | small | bigger |
Drivers required | No | Yes |
Isolated | No, use the USB isolator | Yes |
Band output | No | Yes |
USB | Micro-B | A |
Soundcard | Is the soundcard itself | Uses PC soundcard |
Audio cables | Shorter | Longer |
Modulation relay | Solid SPST | Mechanical SPDT |
Photos
Features
- Simple assembly
- All parts are SMD
- Designed for SMD reflow
- 3.5 jacks
- 3D printed box
- SMD LEDs + light guides on the top side
- power supply from USB
Circuit diagram
Connecting to the radio
- MOD - modulation output to the microphone input of radio
- PTT - Push to talk output to switch Radio to the transmit (active low)
- GND - One ground (ground plane on the bottom layer)