It has two modes selected by an external switch – HF and 6m, or every band.
$50.00
This is a fully built and tested Icom IC-7300 automatic antenna switcher. As you switch bands on your IC-7300, the antenna switch follows you allowing you to use the antenna of your choice. Each band has an output to drive a small 5v relay such as this Arduino Compatible 4 channel 12v relay from Jaycar. This can be used to drive anything you like, such as a high-power coaxial relay.
The board has a 4 pin header which is currently not used for switching, but allows for expansion as you see fit. For example, you could use pin 3 and ground to connect a foot switch!
Read more about the latest updates on the blog.
It’s an Arduino-controlled switch that measures the band voltage on pin 5 of the IC-7300 accessory jack. It’s self-powered from the switched 13.8v supply on pin 8, and has a TX lock so there’s no chance of switching antennas during transmission.
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This is a fully built and tested Icom IC-7300 automatic antenna switcher. As you switch bands on your IC-7300, the antenna switch follows you allowing you to use the antenna of your choice. Each band has an output to drive a small 5v relay such as this Arduino Compatible 4 channel 12v relay from Jaycar. In turn, this can be used to drive anything you like such as a high-power coaxial relay.
The board has a 4 pin header which is currently not used for switching but allows for expansion as you see fit. For example, you could use pin 3 and ground to connect a foot switch!
This automatic antenna-switching project connects directly to the accessory jack of your IC-7300 radio. You’ll need to provide a 20×4 Character LCD Display with and IIC I2C Serial Interface Adapter Module for Arduino, 5v relays to your needs and cables. A kit version will be available soon.
Read more about the latest updates on the blog.
It’s an Arduino-controlled switch that measures the band voltage on pin 5 of the IC-7300 accessory jack. It’s self-powered from the switched 13.8v supply on pin 8, and has a TX lock so there’s no chance of switching antennas during transmission.
It has two modes selected by an external switch – HF and 6m, or every band.
The IC-7300 can deliver up to 1 amp at 13.8v via pin 8 on the accessory jack. If you’re running just one external relay for 6m you can utilise this supply for an external relay. Don’t forget to use a flyback diode such as a 1N4001 across the coil. Be careful if you go down this path. It’s at your own risk as anything you plug into an expensive radio may have unwanted consequences.
The switch uses pins 2, 8 4 and 3 from the accessory jack on the radio which are also accessible via a 4-pin header on the PCB.
| Weight | 0.5 kg |
|---|---|
| Dimensions | 10 × 10 × 5 cm |
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