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Assembly of the antenna RLA4G

The RLA4G is supplied with removed antenna elements.

Component set for an antenna RLA4G

The component set consists of the following parts:

4 pieces of antenna elements (each half of a loop), coaxial cable LMR-400 with TNC connectors of
reversed polarity (RP-TNC).

Node (connection) housing made of plastic with 4 RP-TNC sockets.

Amplifier housing made of bright aluminum with 4 RP-TNC sockets and normal TNC socket for the
antenna cable.

Stainless steel connecting rod with a M5 nut screwed on each end.

All parts are made of weatherproof material (resistant to UV radiation and moisture) and are IP65 dust and
waterproof after proper assembly. The amplifier inside the aluminum housing is designed for a wide 
temperature range (no electrolytic capacitors, components with an extended temperature range). All 
components, with the exception of the coaxial connector for connecting the TNC socket for the antenna 
cable, are arranged in an SMD version on a circuit board and sealed with synthetic resin.

The amplifier housing is bare metal in order to achieve a high reflectivity against solar radiation. This 
keeps the amplifier from heating up as much as possible on hot summer days. The housing consists of a 
body in which all parts are mounted and a screwed-on base plate with an inserted seal. There are tabs on 
the floor panel for attachment to any support elements (mast heads, beams, roof surfaces, ...). Fastening 
must be carried out using suitable countersunk screws (wood, self-tapping or threaded countersunk 
screws of 4 mm in diameter).

Caution!

 When screwing the housing on, no forces may act on the tabs or the base plate (no "warping"). 

The mounting surface must be absolutely flat and level! If necessary, suitable supplements must be placed
to compensate.
There are 4 small holes in the bottom plate near the corners. They serve to equalize the pressure in the 
housing in the event of major temperature changes, as well as to drain off any condensation that may have

VERSION

DATE

NAME

K & M   Burkhard Reuter

Page 

5

 of 

 8

 1.4

 

24.11.2021

B. Reuter

RLA4G/GS

Summary of Contents for RLA4GS

Page 1: ...Specifications and Operator Manual of antenna RLA4G GS Version 1 4 Created 20 06 2020 Konstruktion Musterbau Burkhard Reuter Ziegelstra e 54 06862 Dessau Ro lau...

Page 2: ...6 0 V 13 8 V maximum 14 4 V Power supply max 80 mA HF output BNC 50 ohm Weight 1 5 kg Environmental conditions 20 40 C ambient temperature 100 rel humidity IP65 with connected loops and connection cab...

Page 3: ...eams roof wall Observe the permissible wind load Always transport the device either in solid cardboard or wooden boxes e g the delivery packaging or transport it by firmly gripping the amplifier housi...

Page 4: ...called ground loops can occur if the antenna is supposed to be grounded multiple spatially spaced ground connections e g lightning rods and antenna cables which can act as a reception loop In this cas...

Page 5: ...able are arranged in an SMD version on a circuit board and sealed with synthetic resin The amplifier housing is bare metal in order to achieve a high reflectivity against solar radiation This keeps th...

Page 6: ...degrees does no harm Caution The connecting rod must not be screwed firmly into the spacer bolts on either side Only turn to the right clockwise when viewed from above until the screw connections are...

Page 7: ...possible The most sensible thing to do with the RLA4G is to start by lightly screwing the cables to the top connector housing and letting them hang straight down near the sockets on the amplifier hous...

Page 8: ...h thicker inner conductor of the cables lower ohmic resistance reduction of inductance with increase of conductor diameter Overall the reception performance of the RLA4GS above approx 7 MHz 40 m band...

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