Your Cart

Automatic antenna disconnection

Antenna Disconnect , produced by Paradan (USA), is a protective relay for coaxial antenna cables. As soon as the station is off, the antenna is completely isolated from the radio. No longer turning off the coaxial connectors when a thunderstorm approaches.

Especially for remote operated stations this is a critical feature, which can save the entire radio station.

The Disconnect Antenna not only cuts the center conductor of the coaxial line but also the external screen. The antenna side of the relay is permanently connected to an overvoltage protection, which cuts all thetime surges, even by operating. The relay is triggered by an auxiliary switching therapeutic power. As soon as the transceiver is switched on, the antenna is conencted to the radio. Or, if such ouitput aux is available, the relay is using the same power as the radio. As soon as power supply is switched off, the entire station is switched off and the TNE antenna is disconnected.

The loss of insertion of the disconnect antenna relay is only 0.05 dB at 29 MHz. Even on 144 MHz is only 1 dB. The max. Power is 1500 W. A green LED indicates the status of the relay. The switching voltage is provided by a two-wire DC degree with RCA connector.

  • Features
  • Metal case, black
  • PL jack (antenna)
  • Isolated PL (radio) jack
  • Green LED indicator
  • 2 pcs 15A relay with protection diode
  • Two-wire control cable with Cinch (RCA) connector
  • Reverse polarity protection
  • Large earth screw clamp
Technical data Paradan Relais
Operating voltage 10 - 18 V
Power consumption 60 mA
Mass power. 1500
Loss of insertion @ 29 MHz 00:05 dB
@ 54 MHz 0.4 dB
@ 144 MHz 1 dB
measurement 122 x 66 x 41 mm
Weight 390 g

Write a review

Note: HTML is not translated!
Bad Good
TypeCO-401Frequency range0-900MHzMax Power [@ MHz]0-301500W PEP30-2001000W PEP200-500/600500W PEP500-900150W PEP< 1500-W PEPSWR [@ MHz]0-500 ≤ 1.10..
Professional 2-way switches with excellent features, usable up to 3000 MHz.Available with N connectors or PL. Type CX-210A CX-210N ..
The DBA-270 improves reception features in the 2-me 70-cm-range. The maximum power is 100 watts. Like all pre-amplifiers made by SSB-Electronic GmbH,..
Wire dipole dual band 3.5/7 MHz band Power Watt and PEP 1200Kw Length 26m..
Yaesu GS 065 thrust bearing
Top Brand
Thrust bearing for mast up to 65 mm, 8 bolts, double rotating system project. For all other data show the model GS-050. Hole diameter on the base plat..
Yaesu GC 038 rotor brackets
Top Brand
Set of brackets for YAESU rotators G-450, G650 and G-1000 These brackets are required when the rotor is installed at the top of the mast rather than o..
25 metre cable for Yaesu rotators with connectors
Top Brand
For the following wiresRG-58RG-213Ecoflex-10AIRCELL-7H-155Ultraflex 7Ultraflex 10..
We use cookies and other similar technologies to improve your browsing experience and the functionality of our site. Privacy Policy.

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.