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Alpha Delta Communications

Alpha Delta Communications coax switches and coax surge protectors have been protecting sensitive communications gear for years. And the company’s limited space antennas...

Alpha Delta Communications coax switches and coax surge protectors have been protecting sensitive communications gear for years. And the company’s limited space antennas have survived hurricane-force winds. Why not bring that same proven Alpha Delta performance and reliability to your amateur radio setup, too? For over 30 years, Alpha Delta Communications has been a leading manufacturer of coaxial surge protectors, coaxial switches, HF fixed wire antennas, and more. We’ve got Alpha Delta coax switches, single and parallel dipoles, replacement arc plugs, surge protectors, and more. Shop DX Engineering now!

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Results 1 - 25 of 42

Alpha Delta Coax Switches DELTA-4B

Coax Switch, 4-port, Rated Through 500 MHz, UHF Female, SO-239, Each

Part Number: ALF-DELTA-4B

4.85 out of 5 stars ( 151 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta UHF Connector Coaxial Cable Surge Protectors ATT3G50UHP

Surge Protector, Coaxial, DC pass, UHF Female, SO-239, Stud Mount, 2,000 W Power Rating, Each

Part Number: ALF-ATT3G50UHP

4.86 out of 5 stars ( 87 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta N Connector Coaxial Cable Surge Protectors ATT3G50HP

Surge Protector, Coaxial, DC pass, N Female, Stud Mount, 2,000 W Power Rating, Each

Part Number: ALF-ATT3G50HP

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Dec 9, 2026 if ordered today

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Estimated Ship Date: Dec 9, 2026 if ordered today

Alpha Delta UHF Connector Coaxial Cable Surge Protectors ATT3G50U

Surge Protector, Coaxial, DC pass, UHF Female, SO-239, Stud Mount, 200 W Power Rating, Each

Part Number: ALF-ATT3G50U

4.9 out of 5 stars ( 20 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Multiple Images

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Parallel Dipole Antennas DX-CC

Parallel Dipole Antenna, Multi-Band, Resonant, 1,000 W PEP/CW, 250 W RTTY, 80, 40, 20, 15, 10 meters, 82 ft. Total Length, Assembled, Each

Part Number: ALF-DX-CC

4.68 out of 5 stars ( 28 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Coax Switches DELTA-2B

Coax Switch, 2-port, Rated Through 500 MHz, UHF Female, SO-239, Each

Part Number: ALF-DELTA-2B

4.93 out of 5 stars ( 80 )

Estimated Ship Date: Dec 9, 2026 if ordered today

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Estimated Ship Date: Dec 9, 2026 if ordered today

Alpha Delta Coax Switches DELTA-4B/N

Coax Switch, 4-port, Rated Through 1.3 GHz, N Type, Female, Each

Part Number: ALF-DELTA-4B-N

5.0 out of 5 stars ( 15 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta N Connector Coaxial Cable Surge Protectors ATT3G50

Surge Protector, Coaxial, DC pass, N-type, Female, Stud Mount, 200 W Power Rating, Each

Part Number: ALF-ATT3G50

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Coax Switches DELTA-2B-N

Coax Switch, 2-port, Rated Through 1.3 GHz, N Type, Female, Each

Part Number: ALF-DELTA-2B-N

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta UHF Connector Coaxial Cable Surge Protectors ATT3G50UBHP

Surge Protector, Coaxial, DC Pass, UHF Female, SO-239, 0.75in. Thru-Panel Bulkhead Mount, 2,000 W, Each

Part Number: ALF-ATT3G50UBHP

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta End Insulators DELTA-CIN

End Insulator, 2.920 in. Length, 4 gauge Maximum Wire Size, 0.250 in. Maximum Rope Size, Each

Part Number: ALF-DELTA-CIN

4.95 out of 5 stars ( 22 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Antenna Hardware Kits DELTA-C

Wire Antenna Center and End Insulator, With Support Rope Attachment and Feedpoint SO-239 w/SEP arc-plug, Kit

Part Number: ALF-DELTA-C

4.89 out of 5 stars ( 44 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Desktop Coax Switches ASC-4B

Desktop Coax Switch, 4-port, Rated Through 500 MHz, UHF Female, SO-239, Each

Part Number: ALF-ASC-4B

4.96 out of 5 stars ( 23 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Parallel Dipole Antennas DX-EE

Parallel Dipole Antenna, Multi-Band, Resonant, 1,000 W PEP/CW, 250 W RTTY, 40, 20, 15, 10 meters, 40 ft. Assembled, Each

Part Number: ALF-DX-EE

4.36 out of 5 stars ( 14 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Single Wire Multi-Band Dipole Antennas DX-DD

Single Wire Dipole Antenna, Multi-Band, Resonant, 1,000 W PEP/CW, 250 W RTTY, 80, 40 meters, 82 ft., Assembled, Each

Part Number: ALF-DX-DD

4.75 out of 5 stars ( 24 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Surge Protector Replacement Arc-Plug® Cartridges 3G50HP

Arc-Plug, 2 kW Replacement, for ATT 3G Protectors Only, Each

Part Number: ALF-3G50HP

5.0 out of 5 stars ( 20 )

Estimated Ship Date: Dec 9, 2026 if ordered today

- Multiple Images

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Estimated Ship Date: Dec 9, 2026 if ordered today

Alpha Delta Surge Protector Replacement Arc-Plug® Cartridges 3G50

Arc-Plug, 200 W Replacement, for ATT 3G Protectors Only, Each

Part Number: ALF-3G50

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Multiple Images

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Single Band Full Size Dipole Antennas DX-80

Dipole Antenna, Monoband, Adjustable, 2,000 W, 80 meters, Assembled DELTA-C and 12 AWG, 134 ft. Total Length, Each

Part Number: ALF-DX-80

4.87 out of 5 stars ( 15 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation
- Multiple Images

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Single Band Full Size Dipole Antennas DX-40

Dipole Antenna, Monoband, Adjustable, 2,000 W, 40 meters, Assembled DELTA-C and 12 AWG, 67 ft. Total Length, Each

Part Number: ALF-DX-40

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation
- Multiple Images

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Coaxial Switch Replacement Arc-Plugs® D4

Arc-Plug, Replacement for Alpha Delta Coaxial Switches Only, Each

Part Number: ALF-D4

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Parallel Dipole Antennas DX-LBPLUS

Parallel Dipole Antenna, Multi-Band, Resonant, 1,000 W, 160, 80, 40, 20, 15, 10 M, 100 ft., Assembled, Each

Part Number: ALF-DX-LBPLUS

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta F Connector Coaxial Cable Surge Protectors ATT3G50F

Surge Protector, Coaxial, DC Pass, Type F, Female, 75 ohm, 50 ohm compatible, 200 W, Each

Part Number: ALF-ATT3G50F

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta Single Band Full Size Dipole Antennas DX-20

Dipole Antenna, Monoband, Adjustable, 2,000 W, 20 meters, Assembled DELTA-C and 12 AWG, 34 ft. Total Length, Each

Part Number: ALF-DX-20

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Documentation

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta N Connector Coaxial Cable Surge Protectors ATT3G50B

Surge Protector, Coaxial, DC Pass, Type N, Female, Thru-Panel Bulkhead Mount, 200 W, Each

Part Number: ALF-ATT3G50B

Not Yet Reviewed

Estimated Ship Date: Monday 9/28/2026 if shipped by air

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

Alpha Delta UHF Connector Coaxial Cable Surge Protectors ATT3G50UB

Surge Protector, Coaxial, DC Pass, UHF Female, SO-239, 0.75in. Thru-Panel Bulkhead Mount, 200 W, Each

Part Number: ALF-ATT3G50UB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/28/2026 if shipped by air

- Multiple Images

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Estimated Ship Date: Monday 9/28/2026 if shipped by air

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