Workshop Build-A-Thon
Saturday, April 5, 2023 (pt 1)
Saturday, May 3, 2025 (pt 2)
9:00 am – 11:00 am
Ham Radio Outlet Training Room
(5730 W Good Hope Road, Milwaukee)
Great for home or portable operations, an antenna tuner is a must-have for matching radio to antenna when the antenna is not at resonant length. An auto-tuner speeds the process providing more valuable time to making contacts when jumping from band to band.
Auto-tuner Kit Auto-tuner enclosure
The auto-tuner being built has the following specifications:
Firmware version is 3.2: SWR greater than 1.1 will automatically activate tuning, and the minimum power has been changed from 5W to 1W. 3.2 Program can be tuned below 5W.However, Too low value may result in insufficiently fine tuning (original default is greater than 5W auto tuning).
Product Description:
-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
Package List
-1 x Automatic Antenna Tuner Kits
Contains the following items:
1.PCB motherboard * 1 (SMD electroniccomponents on the front and back have been soldered, and the latest version of the firmware has been burned)
2. Several plug-in electronic components and accessories(Simple assembly capability is required)
3. 0.96 inch OLED screen * 1
4.SMA connectors * 2（If you want UHF connectors, you can search for ATU100 shell on another item page）
Note:
1.Insufficient tuning may occur within 5W. So do not try to be lower than 5W.
2.Recommended maximum power while tuning not above30 watts. (after tuning you can set 100 watts and work on this power，Otherwise it will burn easily)
3. The product is DIY kits need to have Simple assembly capability.
Tools needed: #1 Philips screwdriver, small screwdrivers, flush
cutter, pliers, sharp knife or Exacto knife for scraping the enamel off
wire, Soldering equipment if you want to use your own, extra lighting.
Safety is paramount. Please bring your safety goggles.
Seating is limited. Registration is required.