Availability
HF Transmit Four Square Hybrid Units
Obtain superior directional pattern with our HF transmit four square hybrid units! By phasing your four square elements in a directional pattern, you get great front-to-back...
Obtain superior directional pattern with our HF transmit four square hybrid units! By phasing your four square elements in a directional pattern, you get great front-to-back and side-to-side ratios to minimize the noise. You can operate on your choice of bands—we carry hybrid units for bands from 160 through 10 meters. These units are affordable, easy to install, and simple to use. We also carry power supplies, switch controls, hybrid-relay matrixes, and other components to help you get the most from your four square antenna setup. Shop DX Engineering for HF transmit four square hybrid units and accessories now!
Obtain superior directional pattern with our HF transmit four square hybrid units! By phasing your four square elements in a directional pattern, you get great front-to-back and side-to-side ratios to minimize the noise. You can operate on your choice of bands—we carry hybrid units for bands from 160 through 10 meters. These units are affordable, easy to install, and simple to use. We also carry power supplies, switch controls, hybrid-relay matrixes, and other components to help you get the most from your four square antenna setup. Shop DX Engineering for HF transmit four square hybrid units and accessories now!
Four-Square Hybrid Relay Unit Only, ACB-4, 20 meters, 2 kW CW, Each
Part Number: COM-ACB-20
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Four-Square Hybrid Relay Unit Only, ACB-4, 40 meters, 2 kW CW, Each
Part Number: COM-ACB-40
Estimated Ship Date: Today
Estimated Ship Date: Today
Four-Square Hybrid Relay Unit Only, ACB-4, 80 meters, 2 kW CW, Each
Part Number: COM-ACB-80
Estimated Ship Date: Today
Estimated Ship Date: Today
Four-Square Hybrid Relay Unit Only, ACB-4, 160 meters, 2 kW CW, Each
Part Number: COM-ACB-160
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Four-Square Hybrid Relay Unit Only, ACB-4, 60 meters, 2 kW CW, Each
Part Number: COM-ACB-60
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Four-Square Hybrid Relay Unit Only, ACB-4, 30 meters, 2 kW CW, Each
Part Number: COM-ACB-30
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today