ADS Antenna-Disconnect-Switch Assembly And Operation Manual Download Page 1

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Antenna-Disconnect-Switch

To protect your radio equipment from damage due to surge voltages

Assembly and Operation Manual

Table of Content

Introduction .............................................................................................................................. 2

Functional diagram .................................................................................................................... 2

Electrical characteristics ............................................................................................................ 2

FUNCTIONAL DESCRIPTION AND OPERATING GUIDELINES .......................................................... 3

Power Supply ............................................................................................................................ 3

“REMOTE OFF“ Input ................................................................................................................. 3

Installation ................................................................................................................................ 4

Earth ground connection ........................................................................................................... 4

Circuit Diagram ......................................................................................................................... 4

Connections .............................................................................................................................. 5

ASSEMBLY INSTRUCTIONS ......................................................................................................... 5

Component layout diagram ....................................................................................................... 5

Activation Methods ................................................................................................................... 8

Measurements undertaken – Transmission loss and Reflexion loss ............................................. 8

Disclaimer ................................................................................................................................. 9

Copyright .................................................................................................................................. 9

Parts List ................................................................................................................................. 10

Summary of Contents for Antenna-Disconnect-Switch

Page 1: ...ntroduction 2 Functional diagram 2 Electrical characteristics 2 FUNCTIONAL DESCRIPTION AND OPERATING GUIDELINES 3 Power Supply 3 REMOTE OFF Input 3 Installation 4 Earth ground connection 4 Circuit Diagram 4 Connections 5 ASSEMBLY INSTRUCTIONS 5 Component layout diagram 5 Activation Methods 8 Measurements undertaken Transmission loss and Reflexion loss 8 Disclaimer 9 Copyright 9 Parts List 10 ...

Page 2: ...ction is essential See chapter ground earth connection for details Functional diagram Electrical characteristics Supply activation voltage DC 10 18 Volt Operating current typ 75 mA when activated connected at 12V Supply voltage RF Connectors female SO239 UHF coaxial socket Antenna Socket fully isolated against case RX TX socket braid connected to case Supply connector 2 pole screw terminal twin co...

Page 3: ...the grounded metal case Green LED display ist off Learn more about the various operating conditions in Chapter Activation Methods Transmit operation Under specific conditions with highly mismatched antennas and high VSWR standing wave voltage maxima could be high enough to trigger the Gas Discharge Tube This may occur only when using high power and non resonant antennas with extreme VSWR Power Sup...

Page 4: ...emote supply voltage will be short circuited to ground Earth ground connection To provide effective protection the ADS requires a direct conduction path with sufficient diameter to an suitable earth ground point Earth ground is tied either to the ground stud of the ADS or via the flange cover of the box mounted on a thick metal plate which needs to wired to the ground earth system An effective sta...

Page 5: ... DL4ZAO Status Preliminary v010 Seite 5 Connections ASSEMBLY INSTRUCTIONS Component layout diagram Distances given in mm 25 4 mm 1 inch TO ANTENNA FROM RADIO Remote OFF earth ground stud DC supply cable 10 18V ...

Page 6: ...wo 2mm AWG 16 bolts and nuts Use two 6mm 3 16 inch long metallic spacer sleeves suited for the screws to provide sufficient clearance between pcb and the bottom of the metal box The nuts and bolt connection builds the main conductive path between the ground layer of the printed circuit board and the grounded aluminum case Wiring of the connectors To wire the rf connectors to the corresponding pads...

Page 7: ...ack with Pad K5 on the pcb The connection between the isolated Remote OFF RCA Phono Plug and the pcb is done by a 2 pole pin header K4 Use short pieces of red black litz wire to connect the RCA Socket with the 2 pole female connector and plug it to the pin header K4 Take care of the correct polarity plus red should connect to the inner conductor and minus black must connect to the braid outer cond...

Page 8: ...Wire the RED wire to plus and the BLACK to common For radios that do not have an accessory supply output connect the ADS Supply cable directly to the power supply When the Power Supply is turned ON the ADS connects the antenna to the radio equipment The Remote OFF switching input remotely deactivates the ADS despite during DC supply is powered The function can triggered manually or by an automated...

Page 9: ...t are induced by nearby lightning strikes It may not be sufficient to act as a lightning arrestor during a direct lightning strike It does not replace a professional antenna lightning protection system as required in the national electrical codes and standards applicable in your country Each operator or owner of a station is fully responsible on its own to comply with his country specific rules fo...

Page 10: ... pF ceramic capacitor high voltage type 3KV RM5mm labelled as 4 7pF 3KV 4 2 D1 D2 Diode 1N4007 5 1 D3 LED green 5mm 6 4 K1 K2 K5 K6 Solder Pad on PCB No component pad on pcb 7 1 K3 Screw terminal 2 pol Pitch 5mm 8 1 K4 2 pol Pin Header set with plug and cable 9 1 R1 47K 10 1 R2 2 7K 11 1 R3 2 7K 12 2 RLY1 RLY2 Relay 12V Finder 41 61 9 12V 13 1 T1 MOSFET BS170 14 1 X1 Gas discharge tube GDT Bourns ...

Page 11: ...rommet 5mm 18 1m Power Cable Twin core flexible lead red black 19 1 Buchse Remote OFF RCA Cinch for isolated assembly 20 Miscellaneous mechanical parts Screws and washers M4 USA 8 UNC 6mm distance sleeves 21 Antenna Socket Isolation Set PE washer bushing insulator 22 1 Ground stud 23 1 Throug Hole Plated Printed Circuit Board 24 1 Aluminum die cast box flanged Hammond 1590BSFL ...

Page 12: ...ADS 2018 DL4ZAO Status Preliminary v010 Seite 12 ...

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