Componentes e Conexões de Antenas

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NOTES 1. All Switches & Relays have both contacts wired in parallel to improve reliability of operation.
 2. Relays are 2 Change Over Heavy Duty with 12 Volt coils, 
 Diodes are 1N1004 100v 1A, Capacitors 0.1 MFD Disc 100V
 3 All Switches are heavy duty toggle switches. For Correct operation ONLY one Antenna should be selected.
 4. An external 12-15v dc 500 mA power supply is used to power the relays. ions.
 5. When an antenna is not in use the feeder coax is grounded. This prevents any static build up.
E
A
5
A
V
L
 5
- A
n
te
n
n
a
 R
e
la
y
 S
w
itc
h
 B
o
x
 
 
D
ra
w
n
 b
y
 M
C
 - 1
8
 F
e
b
0
8
5
 D
e
c
 0
8
 is
s
u
e
 2
 Antenna 1 Antenna 2 Antenna 3 Antenna 4 
 
1&2 RLA 1&2 RLB 1&2 RLC 1&2 RLD 1&2 RLE
off
off
on
on
off
Select
Antenna 
1
Select
Antenna 
2
Select
Antenna 
3
Select
Antenna 
4
Select
Antenna 
5
 Antenna 5 
Input 
From Tuner
Relay 1 Relay 2 Relay 3
RLA /2 RLB/2 RLC /2
Relay 4
RLD /2
Relay 5
RLD /2
12-15 v
 DC 
supply
S1a S1b S2a S2b S3a S3b S4a S4b S5a S5b
on
E
A
5
A
V
L
 5
- A
n
te
n
n
a
 R
e
la
y
 S
w
itc
h
 B
o
x
 
 
D
ra
w
n
 b
y
 M
C
 - 1
8
 F
e
b
0
8
80m
Vert
40m
Delta
20/17/15/10m
Quad
40m
Compact 4-SQ
50 Ohm
Dummy Load
80m
Vert
40m
Delta
20/17/15/10m
Quad
40m
Compact 4-SQ
50 Ohm
Dummy Load
S0239 
Connector
Wing Nut & 
Washer 
Earth Connection
20A DPST Toggle Switch
S1 S2 S3 S4 S5
 Antenna 1 Antenna 2 Antenna 3 Antenna 4 Antenna 5 
Alloy Oven Baking Tin 9½” x 6½ “ x 2” ( 240 x 18 x 50 mm)
	5 Antenna Relay Switch iss 2 EA5AVL.vsd
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