Icom IC-E2820 Instruction Manual page 31

i ANTENNA CONNECTOR [ANT2 RX]
Connects a 50 Ω antenna with a PL-259 connector and a
50 Ω coaxial cable for diversity reception.
o EXTERNAL SPEAKER JACK 1 [SP-1]
Connects an 8 Ω speaker. Outputs audio from both left and
right bands when no external speaker is connected to [SP-
2]. See the table at right for details.
• Audio output power is more than 2.4 W.
!0 EXTERNAL SPEAKER JACK 2 [SP-2]
Connects an 8 Ω speaker. Outputs right band's audio only.
• Audio output power is more than 2.4 W.
!1 POWER RECEPTACLE [DC13.8V]
Accepts 13.8 V DC ±15% with the supplied DC power
cable.
NOTE: DO NOT use a cigarette lighter socket as a
power source when operating in a vehicle. The plug
may cause voltage drops and ignition noise may be su-
perimposed onto transmit or receive audio.
(p. IX)
ANTENNA INFORMATION
For radio communications, the antenna is of critical impor-
tance, to maximize your output power and receiver sensi-
tivity. The transceiver accepts a 50 Ω antenna and a
Voltage Standing Wave Ratio (VSWR) of 1.5:1 or less. High
SWR values not only may damage the transceiver but also
lead to TVI or BCI problems.
• Speaker information
Connected
No external
[SP-1] only
[SP-2] only
PANEL DESCRIPTION
Left band audio
speaker
Internal speaker (mixed audio)
speakers
External speaker (mixed audio)
Internal speaker
2 external External speaker via
speakers [SP-1]
1
1
2
3
4
5
6
7
8
9
Right band audio
10
11
12
External speaker
External speaker via
13
[SP-2]
14
15
16
17
18
19
10