How to Use:
1. Connect the radio, ATU antenna tuner, antenna
2. Set radio mode, use FM mode
3. Select the antenna frequency band to use, use 20‑30W power in FM mode, press radio PPT, observe the ATU antenna tuner PWR and SWR
4. Use of ATU Button TUNE: short press (less than 1 second) ATU button, it is in reset state, long press (more than 1 second) ATU button is in adjustment state
5. If the SWR of the ATU antenna tuner shows greater than 2.0 in the state, it means that the antenna has been detuned. You need to use an antenna tuner. Press and hold the ATU button TUNE to tune and observe the SWR value. If the tuned SWR is greater than 3.0, the antenna will be detuned. Special attention, it is not recommended to use power 30W, and the transmit power should be controlled below 30W; if the tuning is completed, the SWR shows less than 2.0, and the maximum power of 100W can be used for

Specification:
Item Type: Mini Antenna Tuner
Material: Aluminum Alloy
Model: ATU-100
Working Voltage: 10-15VDC
Display: 0.96in Organic Light Emitting Diode
Operating Frequency: 1.8-55 MHz
Battery Model: 1350mAh 3.6V lithium battery (built in battery)
USB Charging Current: 1A
Maximum Working Power: 100W
Maximum Measurement Power: 150W
Tuning Start Minimum Power: 1W
Minimum Measurement Power: 0.1W
Step for Measuring Power Below 10W: 0.1W
Step for Measuring Power 10W: 1W
Power Measurement Accuracy: 10%
Maximum Setting Inductance: 8.4uH
Inductance Minimum Setting Step: 0.05μH
Maximum Setting Capacity: 1870pF capacitor
Minimum Setting Step: 10pF

Package List:
1 x Antenna Tuner
1 x USB Cable

Brand	Walfront
Manufacturer	Walfront
Model	Walfrontkt7r4n2chw6419
Package Dimensions	18.6 x 12.5 x 6.2 cm; 580 g
Item model number	Walfrontkt7r4n2chw6419
Compatible Devices	default
Mounting Hardware	inc
Number of items	1
Power Source	PowerSource
Batteries Included	No
Batteries Required	No
Material	default
Device type	default
Manufacturer	Walfront
Item Weight	580 g

Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery

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Description

Specifications

Common Questions