Icom IC-7000 Instruction Manual - Page 101

Measuring SWR - power output

Get Icom IC-7000 PDF manuals and user guides View all Icom IC-7000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 101 highlights

6 FUNCTIONS FOR TRANSMIT ■ Measuring SWR The IC-7000 has a built-in circuit for measuring antenna SWR-no external equipment or special adjustments are necessary. The IC-7000 can measure SWR in 2 ways-spot measurement and plot measurement. The SWR can only be measured on [ANT1] connector, in the HF/50 MHz bands when an antenna is connected. However, when a 144/430 MHz antenna is connected to [ANT2], the SWR cannot be measured. D Spot measurement q Select CW or RTTY operation with [MODE]. w Confirm that the output power is over 30 W. e Select S-1. r Push [F-3 MET] one or more times to select the SWR meter. t Key down or push [PTT] to transmit; then read the actual SWR from the meter. ➠ ≤ 1.5 well matched antenna ➠ > 1.5 check antenna or cable connection, etc. [MENU/GRP] [F-3] SWR 1 1�5 2 - 3 ∞ The best match is in this range. 6 D Plot measurement Plot measurement allows you to measure the SWR over an entire band. q Confirm that the output power is over 30 W. w Set the center frequency for the SWR to be measured. e Select G-3 (SWR meter). r Hold down [F-4 step] for 1 second one or more times to select the desired measuring step from 10, 50, 100 and 500 kHz. t Push [F-2] or [F-3] one or more times to select the desired number of measuring steps from 3, 5, 7, 9, 11, and 13 steps. y Push [F-1] to start the measuring. u Hold down [PTT] on the microphone to measure the SWR. • Frequency marker, "∫," appears below SWR graph. • RTTY mode is automatically selected. i When releasing [PTT], the frequency marker and frequency indication move to the next frequency to be measured. o Repeat steps u and i to measure SWR over the entire frequency range. !0 When the measured SWR is less than 1.5:1, the antenna is well matched with the transceiver in the measured frequency range. Push [F-1] to start mesuring. Push [F-4] to Select SWR mesuring steps. Push [F-2] or [F-3] to select number of SWR mesuring steps. • Measuring (after pushing [F1]) Frequency marker appears and moves after measurement. 4.0 : 1 3.0 : 1 2.0 : 1 1.5 : 1 1.0 : 1 The antenna is well matched in this range 92

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
D
Plot measurement
92
6
FUNCTIONS FOR TRANSMIT
6
The IC-7000 has a built-in circuit for measuring
antenna SWR—no external equipment or special
adjustments are necessary.
The IC-7000 can measure SWR in 2 ways—spot
measurement and plot measurement.
The SWR can only be measured on [ANT1]
connector, in the HF/50 MHz bands when an
antenna is connected. However, when a 144/430
MHz antenna is connected to [ANT2], the SWR
cannot be measured.
q
Select CW or RTTY operation with
[MODE]
.
w
Confirm that the output power is over 30 W.
e
Select
S
-
1
.
r
Push
[F-3
MET
]
one or more times to select the
SWR meter.
t
Key down or push
[PTT]
to transmit; then read the
actual SWR from the meter.
➠
≤
1.5 well matched antenna
➠
>
1.5 check antenna or cable connection, etc.
The best match is in this range.
SWR
1
1�5
2
-
3
∞
[MENU/GRP]
[F-3]
Plot measurement allows you to measure the SWR
over an entire band.
q
Confirm that the output power is over 30 W.
w
Set the center frequency for the SWR to be
measured.
e
Select
G
-
3
(SWR meter).
r
Hold down
[F-4
STEP
]
for 1 second one or more
times to select the desired measuring step from
10, 50, 100 and 500 kHz.
t
Push
[F-2]
or
[F-3]
one or more times to select
the desired number of measuring steps from 3, 5,
7, 9, 11, and 13 steps.
y
Push
[F-1]
to start the measuring.
u
Hold down
[PTT]
on the microphone to measure
the SWR.
• Frequency marker, “
∫
,” appears below SWR graph.
• RTTY mode is automatically selected.
i
When releasing
[PTT]
, the frequency marker and
frequency indication move to the next frequency
to be measured.
o
Repeat steps
u
and
i
to measure SWR over
the entire frequency range.
!0
When the measured SWR is less than 1.5:1, the
antenna is well matched with the transceiver in
the measured frequency range.
Push [F-1] to start
mesuring.
Push [F-2] or [F-3] to select number of
SWR mesuring steps.
Frequency marker appears and moves
after measurement.
Push [F-4] to Select
SWR mesuring steps.
• Measuring
(after pushing [F1])
The antenna is well matched in this range
1.0 : 1
1.5 : 1
2.0 : 1
3.0 : 1
4.0 : 1
■
Measuring SWR
D
Spot measurement