WITH MANUAL , SCH ，please tell me your email, so can send to you !
1.DIY kit, need to have welding ability;
2. NO Need to burn-firmware,
3.All SMD electronic components soldered, chip soldered !
4.Circuit schematic and firmware, please contact us.
5. with 0.96 OLED
we have assembled one , here is the link:
KIT of ATU (Automatic Antenna Tuner) developed by N7DDC
All information about project you can find on GitHub (N7DDC).
Power supply range: 10 – 15 VDC
Max current : 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts : 1 watt
Power measurement accuracy : 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
100 Watts tuner, 7×7 (7 capacitors x 7 coils) based on PIC 16F1938.
Dimentsion – 120 mm x 62 mm.
PCB for ATU-100 7×7 HF autotuner
+ set of toroids:
– T68-2 (6pcs);
– BN43-202 (1pcs).
+ set of parts:
– PIC16F1938 (1pcs) soldered on PCB with default firmware v3.0
– 100R 2512 1% (4pcs).
– relay HK4100F-DC12V (15pcs)