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ATU-100 atu100 1.8-50MHz ATU100mini Automatic Antenna Tuner by N7DDC 7×7 3.1Firmware Programmed / SMT/ Chip Soldered/+OLED

Color: Finished Machine 2
List price: US $77.70
Price: US $69.93
You save:US $7.77 (10%)

Item Specifics

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Product Description

SWR greater than 1.1 will automatically activate tuning, and the minimum power has been changed from 5W to 1W.

The latest firmware version is 3.2

New in the version 3.2
1.Fixed bug with continuous data transfer to the display.

2.Added a new ability to disable all relays along with the timer display. New cell 35-01 to activate the refunction. Display Off Timer setup – cell 32.You can use this future in your QRP setup where power consumption is critical.

3.Timeout for display reset increased to 2 seconds. This is required for some OLED displays with a very chain on the reset pin.

NOTE:Green and Blue board

The boards of this series of products are available in blue and green in our shop: the functions are the same, and the ones you receive may be green or blue, which is a surprise!


Machine introduction:

Finished machine 2 (without battery):

There are 2 modes: automatic mode and manual mode tuning function.

SIZE: 140 x 88 x 38 mm (L*W*H)

Dear customer: If you want to buy machine1(Finished machine 1 (without battery): Only 1 mode: only supports automatic mode tuning function; ), please click the following link to buy. Thank you


The board has been burned 3.2 program:

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