Uploaded February 2026 | Updated September 2026, 2 weeks ago
In this video we will look at connecting a Yaesu ATAS-120A antenna to a 3/8x24 antenna mount on a vehicle. Adapting the ATAS (or any antenna's) PL-259 connector to a 3/8x24 mount is pretty straight forward. The one extra catch is that the ATAS uses DC power fed through the coax to run the tuning motor up and down. A 3/8x24 antenna mount doesn't provide any connection to ground or vehicle chassis to the antenna. So we have to add an extra jumper wire to complete the DC circuit so the ATAS can tune correctly.
These are the bullet connectors I used for my jumper:
amzn.to/4kQaf7Z
3/8x24 Antenna Quick Disconnect Adapter:
amzn.to/4kRUM7t
Please check out my website and stores:
Note: The Amazon Store contains affiliate links
Amazon store: amazon.com/shop/hamradioa2z
A2Z Tech Store: https://store.a-2-z.tech/
HRA2Z Companion Website: https://a-2-z.tech/
In this video we will look at connecting a Yaesu ATAS-120A antenna to a 3/8x24 antenna mount on a vehicle. Adapting the ATAS (or any antenna's) PL-259 connector to a 3/8x24 mount is pretty straight forward. The one extra catch is that the ATAS uses DC power fed through the coax to run the tuning motor up and down. A 3/8x24 antenna mount doesn't provide any connection to ground or vehicle chassis to the antenna. So we have to add an extra jumper wire to complete the DC circuit so the ATAS can tune correctly.
These are the bullet connectors I used for my jumper:
amzn.to/4kQaf7Z
3/8x24 Antenna Quick Disconnect Adapter:
amzn.to/4kRUM7t
Please check out my website and stores:
Note: The Amazon Store contains affiliate links
Amazon store: amazon.com/shop/hamradioa2z
A2Z Tech Store: https://store.a-2-z.tech/
HRA2Z Companion Website: https://a-2-z.tech/
