Welcome to StepperTune
StepperTune is a way to control an Antenna Tuner remotely via a single Cat 5 cable using two Stepper Motors.
The front panel of a StepperTune unit.
StepperTune Features
- Designed to control two stepper motors for controlling a remotely located antenna tuner.
- May remotely control tuning capacitor for magnetic loop.
- Control cable may be a Cat 5 cable up to 200 feet while using a 12 volt power supply.
- Cable lengths greater than 200 feet may be realized using a supply voltage up to 24 volts DC.
- Eight memory locations for both steppers.
- Auto band memories for auto-band change from Icom transceivers (other transceivers may be implemented with a band decoder module upon request).
- Automatic antenna tuning capable with external specified directional coupler connected.
- Stepper motor current control and stepper motor current displayed. Capable of up to 2.5 amps of stepper drive current.
- Stepper over-current/over temp shutdown protection.
- “Jog mode” to easily fine tune either stepper motor.
- Stepper motor speed easily programmed.
Ports of the reverse side of a StepperTune unit.
A StepperTune unit with two motors attached.
Demo
The following is a demonstration of StepperTune in action.
StepperTune in the Field
Ron Douglass’ (NI7J of Scorpion Antennas) tuner.
New ATU on Acrylic.
Ron Douglass-NI7J of Scorpion Antennas.
K7EMF Ranch- ATU.
Ron Douglass’ (NI7J of Scorpion Antennas) tuner with the tower in the background.
Terms of Purchase
$325. We prefer PayPal but also accept Visa and MasterCard. Shipping is $18.95 for USPS Priority Mail. Contact us for more information or place an order.
