Paradan Radio Antenna Disconnect Actuator · Accessories & Components
A replacement, service, interface, or modular accessory for a documented product or system.
Why operators make room for it
Keep a modular Chameleon build complete and field-ready
Field failures rarely wait for a convenient repair bench, so the right documented component can be the difference between improvising and operating.
That is where Paradan Radio Antenna Disconnect Actuator enters the kit. The Antenna Disconnect Actuator is installed at the output from your transceiver, power amplifier, or antenna tuner in line with the antenna’s feedline. When the transceiver is turned OFF, the antenna’s coax signal wire and shield are shorted together and grounded, and both the coax center and coax shield are disconnected from the radio. When the transceiver is powered ON, the Actuator re-connects the antenna for normal operating.
The operator gets a specific way to complete, adapt, or maintain the intended product without confusing physical fit with full RF, power, environmental, or structural compatibility.
Quick product reference
Key Specifications
- Product type
- Accessories & Components
- Primary role
- A replacement, service, interface, or modular accessory for a documented product or system.
- Operating Voltage
- 10-18 Volts dc
- Current
- 60 mA when turned ON to connect antenna
- Size
- 4.8 x 2.6 x 1.6 in., mtg. tabs w/4 holes @ 5.25 and 1.5 in. centers
- Weight
- 13 oz., 390 grams
- Selection rule
- Confirm product family, revision, interface, size, and quantity
- Compatibility
- Verify electrical, power, and structural requirements where applicable
Operator decision support
Plan the complete setup
See what this product is best suited for, what the documented setup needs, and the boundaries to confirm before deployment.
- Best for
Field failures rarely wait for a convenient repair bench, so the right documented component can be the difference between improvising and operating.
- What else you need
Confirm product family, revision, interface, size, and quantity
- Compatible with
Verify electrical, power, and structural requirements where applicable
What an operator can do
- Confirm the exact product, revision, interface, size, quantity, and position the component is intended to serve.
- Install it according to the completed product or system guide.
- Treat physical fit as only one part of compatibility; verify electrical, power, and structural requirements where applicable.
Complete product details
Reduce the chance of station damage from lightning.
The Antenna Disconnect automatically disconnects the antenna from your radio and grounds the antenna. It prevents static-discharge, surges, and lightning-strike effects from damaging your radio and associated equipment.
The Antenna Disconnect Actuator is installed at the output from your transceiver, power amplifier, or antenna tuner in line with the antenna’s feedline. When the transceiver is turned OFF, the antenna’s coax signal wire and shield are shorted together and grounded, and both the coax center and coax shield are disconnected from the radio. When the transceiver is powered ON, the Actuator re-connects the antenna for normal operating. It is intended for HF operation, 160 through 6 meters, and can handle 1.5 kW. A good earth ground connection is required for maximum surge protection. The Antenna Disconnect is ideal for remote station lightning and static protection.
The Antenna Disconnect Actuator comes with SO-239 coaxial sockets. It is also available with 5-way binding posts for use with twin lead (ladder line) feed lines, such as 450 ohm lines. To purchase, please select this option above
12 Volt power for the Actuator comes from the transceiver. For modern Yaesu transceivers, simply plug the control cable into the transceiver’s auxiliary power RCA socket. For modern Icom transceivers, connect the control wire to the auxiliary socket's pigtails using the crimp barrels. Or connect the control cable to your power supply directly or through a power strip. Powerpoles are included.. Simply turn on your radio or power supply to operate. If you wish to leave the power supply on, then a separate unit, the optional Radio ON Detector unit is used to sense if the radio is turned on. The On-Detector is placed in series with radio’s 12 volt power wire. PLEASE SPECIFY IF YOU NEED THIS OPTION ABOVE.
Specifications:
Antenna Disconnect Actuator:
- Operating Voltage: 10-18 Volts dc
- Insertion loss: less than 0.05 dB up to 29 MHz. 0.3 dB at 54 MHz, 1.0 dB at 148 MHz
- Current: 60 mA when turned ON to connect antenna
- LED: Illuminates green when relays connect the antenna
- Relays: Two relays with 15 Amp contacts, protected for reverse spikes
- Case: Grounded to antenna’s and Isolated from radio’s coaxial connector
- Control Wire: Two-conductor #18 AWG with an RCA plug. Powerpoles and barrel connectors are included.
- Control Input: Diode protected against reverse polarity. RF filtered.
- Active Lightning Protection: Gas Discharge Tube on antenna coax input
- Case Ground Stud: One-quarter inch with washers, lock washer and nut
- Case: Die-cast aluminum, black paint, white print, water resistant
- Size: 4.8 x 2.6 x 1.6 in., mtg. tabs w/4 holes @ 5.25 and 1.5 in. centers
- Weight: 13 oz., 390 grams
