IC-7851 무전기 안테나 사용에 대하여 궁굼 합니다.

[DS3EXX]

http://ds3exx.com/bbs/board.php?bo_table=info02

안녕하세요?

DS3EXX  송태수 입니다.

제가 사용하는 무전기인데요.

안테나 콘넥터가 4개가 있는데 1.2.3.4번

1번  3.5 / 7 MHZ 용

2번  21 / 28 MHZ용

3번  50       MHZ용

4번  RX      수신용

현재 제가 사용하는 것은 1 번에 연결하여

3.8 MHZ  야기와  모슬리 프로 96

7 / 14 / 18 / 21 / 24 / 28 용을 사용합니다.

메뉴얼을 보니 설정하는 그림이 있는데 정확

하게 이해가 안되어 혹 무전기에 문제가 생길

까 걱정되어 글을 올립니다.

현재 상태로 써도 된다면 다행이지만 모르고

쓰다가 고장이라도 난다면 여러가지로 불편할

것 같습니다.

용량이 커서 화일이 안올라가네요.

저의 홈 자료실에 올려 놓겠습니다.

www.ds3exx.com

010-8283-1019 

start manual tuning.
■■Antenna connection and selection………………………………………13-2
■■Receive Antenna-I/O selection… ………………………………………13-2
■■Antenna memory settings…………………………………………………13-3
DDSelecting the antenna type……………………………………………13-4
DDAntenna selection mode… ……………………………………………13-5
DDTemporary memory… …………………………………………………13-5
DDReceive antenna I/O setting……………………………………………13-6
■■About the Antenna tuner… ………………………………………………13-7
■■Using the Antenna tuner operation………………………………………13-7
DDIf the tuner cannot tune the antenna…………………………………13-8
13-2
13 ANTENNA TUNER OPERATION
■■Antenna connection and selection
3.5/7 MHz
bands
21/28 MHz
bands
RX
only
50 MHz
bands
ANT4 ANT3 ANT2 ANT1
() Multi-function keys
[RX-ANT B]
IN OUT IN OUT
[RX-ANT A]
• Antenna connection example
The transceiver has four antenna connectors for the
HF/50 MHz bands, [ANT1], [ANT2], [ANT3], and
[ANT4].
You can automatically select an antenna to your operating
band if you assign an antenna to an operating
band in advance.
NOTE: [ANT4] can be set as receive only.
• Antenna selection mode: “Auto”
You can assign combinations of antenna connected
to [ANT1] to [ANT4] and an operating band. After an
antenna has been selected for use, the antenna is automatically
selected whenever that band is used.
➥Antenna selection mode (p. 13-5)
➥Antenna memory settings (p. 13-3)
• Antenna selection mode: “Manual”
You can push [ANT]() to manually select a antenna
connected to [ANT1] to [ANT4].
➥Antenna selection mode (p. 13-5)
➥Temporary memory (p. 13-5)
■■Receive Antenna-I/O selection
The transceiver has two independent receive antenna
connectors, [RX-ANT A] and [RX-ANT B] on the rear
panel.
You can connect a receive only antenna to IN, other
receivers to OUT, and an external pre-amplifier/Filter
between IN and OUT.
➥Receive antenna I/O setting (p. 13-6)
13-3
ANTENNA TUNER OPERATION 13
■■Antenna memory settings
This function stores the antenna connector number for
each frequency band.
You can assign an antenna connected to [ANT1] to
[ANT4] and the two [RX-I/O] and an operating band.
NOTE: [ANT1] is set as the default for all operating
bands and no [RX-I/O] is used.
Example: Assigning [ANT3] when you select the 14 MHz
band.
q Hold down the Multi-function [ANT]() key for 1 second.
• The ANT screen is displayed.
w Push the [14] band key.
• The 14 MHz band is selected.
e Push the Multi-function [ANT]() key several times
to select the “ANT3”.
• “★” appears.
r Hold down [ANT MW](F) for 1 second to store the
antenna selection into the antenna memory.
• “★” disappears.
t Push [EXIT/SET].
• Exits the ANT screen.
NOTE: Push [RX-I/O] to change the settings without
going to item step r above. The change can be
stored in the antenna memory. (p. 13-6)
() Multi-function keys Band keys
(F) Function keys
• ANT screen
‘ANT1’ is set. Displays [RX-I/O]
connection status
13-4
13 ANTENNA TUNER OPERATION
■■Antenna memory settings (Continued)
DDSelecting the antenna type
When no antenna is connected to [ANT2], [ANT3],
and/or [ANT4], these antenna connectors can be deactivated—
by deleting the antenna number from selection.
This prevent the transceiver from accidentally
transmitting into an empty antenna connector.
In addition, a receive-only antenna can be specified
for [ANT4].
q Hold down the Multi-function [ANT]() key for 1 second.
• The ANT screen is displayed.
w Push [ANT TYPE](F).
• The ANT type screen is displayed.
e Push [Y](F) or [Z](F) to select the desired antenna.
r Rotate [MAIN DIAL] to set the desired antenna to
TX/RX, RX (ANT4 only) or OFF.
• OFF: Select when no antenna is connected.
• TX/RX: Select when an antenna is connected.
(Default)
• RX: Select when a receive only antenna is connected.
(available for the [ANT4] only)
t Push [EXIT/SET].
• Exits the ANT type screen.
✔ For your information
• The “OFF” antennas cannot be selected with the
Multi-function [ANT]() key operation, or with the antenna
memory setting.
• When “RX” is set to for [ANT4], “1/R,” “2/R” and “3/R”
selections will be added to the selection for both
Multi-function [ANT]() key operation and the antenna
memory setting. In these selections, use the
antenna connected to [ANT1], [ANT2] and/or [ANT3]
for transmission and using the antenna connected to
[ANT4] for reception.
() Multi-function keys
(F) Function keys
• ANT type screen
• Antenna type selection on the ANT screen
All antennas, connected to [ANT1]~[ANT4], are set as
for ‘TX/RX.’
13-5
ANTENNA TUNER OPERATION 13
Push [[ANT] SW](F) to select the
antenna selection mode.
• Antenna selection mode
• Options of the Antenna selection mode
DDTemporary memory
The antenna temporary memory memorizes the manually
selected antenna. The selected antenna will be
recalled even if frequency band has been changed.
q Hold down the Multi-function [ANT]() key for 1 second.
• The ANT screen is displayed.
w Push [TEMP-M](F).
• “Temporary memory : ON” appears.
• Push [TEMP-M](F) again to turn OFF.
e Select the desired frequency band with a band key.
r Push the Multi-function [ANT]() key to select the
desired antenna.
• “★” appears when a different antenna from the original
is selected.
• Push [ANT MR](F) to recall the original antenna.
“★” disappears.
t Push [EXIT/SET].
• Exits the ANT screen.
CAUTION: Before transmitting with a manually selected
antenna, make sure the selected antenna
suits the operating frequency. Otherwise the transceiver
may be damaged.
() Multi-function keys
(F) Function keys
Appears when a different
antenna from the original
is selected.
The temporary
memory is ON.
• When the temporary memory is ON.
■■Antenna memory settings (Continued)
DDAntenna selection mode
The automatic antenna selection (antenna memory)
and the Multi-function [ANT]() key can be deactivated
or you must manually select the desired antenna.
You can set the desired selection in this mode.
q Hold down the Multi-function [ANT]() key for 1 second.
• The ANT screen is displayed.
w Push [[ANT] SW](F) to set the antenna selection to
“Auto Auto”, “Auto Manual” or “Manual Manual”.
• Auto Auto: Uses the antenna memory. Selecting
an antenna with the Multifunction
[ANT]() key can also be
made.
• Auto Manual: Each antenna connector is selected
according to the stored
settings. A [RX-I/O] connector
is selected with each pushing of
[RX-I/O (F)] and is selected according
regardless of stored settings.
• Manual Manual: Deactivate the antenna memory
function. Antenna can be selected
only with the Multi-function [ANT]
() key operation. [RX-I/O] can be
selected with [RX-I/O](F).
e Push [EXIT/SET].
• Exits the ANT screen.
13-6
13 ANTENNA TUNER OPERATION
[RX-ANT B]
IN OUT IN OUT
[RX-ANT A]
• When the RX-I/O is selected.
OFF RX-I/O A RX-I/O B
• When the RX-I/O is selected (1)
The setting is Displayed
Set to RX-I/O A Set to [RX-I/O] OFF
• When the RX-I/O is selected (2)
When a common antenna is selected on the Main and Sub bands,
different RX-I/O settings cannot be set.
Thus, the transceiver automatically sets the RX-I/O setting of the
inoperating band to the correct setting, the same as the operating
band.
• When the RX-I/O A is selected in the 10 MHz band
Pushing [RX-I/O](F) changes setting
■■Antenna memory settings (Continued)
DDReceive antenna I/O setting
A [RX-I/O] connector is automatically selected when
you store the settings in the antenna memory.
When you set the settings to [Auto manual] or [Manual
Manual], an [RX-I/O] connector is commonly selected
regardless of the selected band.
q Hold down the Multi-function [ANT]() key for 1 second.
• The ANT screen is displayed.
ww Push [RX-I/O](F) to activate the receive antenna
connectors.
• “ RX-I/O” indicators appear when [RX-I/O A] and/or [RXI/
O B] is active.
• Either “RX-I/O A” or “RX-I/O B” indicator appears under
the “ANT” indicator.
NOTE:
• When an external device is connected, and when a
common antenna is set to the Main and Sus bands,
different RX-I/O settings cannot be set.
• When different antennas are set to the Main and
Sub bands, common RX-I/O settings cannot be
set.
• When the SUB band is selected in the Dualwatch
function OFF, you cannot change the RX-I/O setting.
However, if you additionally turn ON the SPLIT
function and holding down [XFC], you can change
the RX-I/O setting.
13-7
ANTENNA TUNER OPERATION 13
■■About the Antenna tuner
The internal automatic antenna tuner automatically
matches the transceiver to the connected antenna.
After the tuner matches an antenna, the variable capacitor
angles are memorized as a preset point for
each frequency range (100 kHz steps). Therefore,
when you change the frequency range, the variable
capacitors are automatically preset to the memorized
point.
CAUTION: NEVER transmit with the tuner ON when
no antenna is connected. This will damage the
transceiver. Be careful of the antenna selection.
➥ Push [TUNER] to turn on the internal antenna tuner.
The antenna is automatically tuned when the antenna
SWR is higher than 1.5:1.
• When the tuner is ON, the [TUNER] switch indicator
lights white.
• While tuning, the [TUNER] switch indicator blinks red.
NOTE:
• NEVER transmit without an antenna properly
connected to the selected antenna port.
• When 2 or more antennas are connected, select
the antenna to be used with [ANT].
• If the SWR is higher than about 1.5:1 when tuning
above 100 kHz on an antenna’s preset point,
hold down [TUNER] for 1 second to start manual
tuning.
• The internal tuner may not be able to tune in the
AM mode. In such cases, hold down [TUNER] for
1 second to manually tune.
• MANUAL TUNING
During SSB operation at low voice levels, the internal
tuner may not tune correctly. In such cases, manual
tune the antenna.
➥ Hold down [TUNER] for 1 second, to start manual
tuning.
• A side tone is heard and the [TUNER] switch indicator
blinks red while tuning.
• If the tuner cannot reduce the SWR to less than 1.5:1
after 20 seconds of tuning, the [TUNER] switch indicator
goes out.
• AUTOMATIC TUNER START (HF bands only)
If you want to deactivate the tuner under conditions
of VSWR 1.5:1 or less, use the auto tuner start function
and turn the tuner OFF. This function activates the
tuner automatically when the SWR exceeds 1.5:1.
This function is turned ON in the set mode. (p. 15-14).
[TUNER] [TUNER] indicator
■■Using the Antenna tuner operation
13-8
13 ANTENNA TUNER OPERATION
■■Antenna tuner operation (Continued)
• PTT TUNER START
The tuner is always activated when PTT is pushed
after the frequency is changed (more than 1% from
last-tuned frequency). This function removes the “hold
down [TUNER],” and activates the tuner for the first
transmission on a new frequency.
This function is turned ON in Set mode (p. 15-14).
• Antenna tuner in the IC-PW1
When using an external antenna tuner such as the ICPW1’
s tuner, tune with the external antenna tuner, and
turn OFF the transceiver’s tuner. Otherwise, both tuners
tune simultaneously and correct tuning may not be
obtained.
See the instruction manual included with each antenna
tuner for their respective operation.
DDIf the tuner cannot tune the antenna
Check the following and try again:
• the [ANT] connector selection
• the antenna connection and feedline
• the untuned antenna SWR (Less than 3:1 for the HF bands,
Less than 2.5:1 for the 50 MHz band)
• the transmit power (8 W for the HF bands, 15 W for the 50 MHz
band)
• the power source voltage/capacity
If the tuner cannot reduce the SWR to less than 1.5:1
after checking the above, perform the following:
• Repeat manual tuning several times.
• Tune with a 50 Ω dummy load and then retune the antenna.
• Turn power OFF and ON.
• Adjust the antenna feedline length (This is effective for
higher frequencies in some cases.)
• Some antennas, especially for low bands, have a narrow
bandwidth. These antennas may not tune at the edge of
their bandwidth, therefore, tune such an antenna as follows:
[Example]: Suppose you have an antenna which has an
SWR of 1.5:1 at 3.55 MHz and an SWR of 3:1
at 3.8 MHz.
q Set 3.55 MHz and hold down [TUNER] for 1 second to
start manual tuning.
w Set 3.80 MHz and hold down [TUNER] for 1 second to
start manual tuning.

[HL2IFR]

1. 리그 후면 안테나단자 1번은 160미터 밴드부터 17미터 밴드까지 적용, 안테나2번단자는 15미터 부터 10미터까지 적용, 안테나3번단자는 6미터전용으로 적용,4번 RX용
ANT1 for the 1.8–18 MHz bands, ANT 2 for the 21–28 bands ANT3 for the 50 MHz band, and ANT 4 for a receive antenna
2. 기존의 스태퍼4소자와 프로96 야기 안테나가 샤크룸으로 들어와서 기성제품인 안테나셀렉터 스위치(자동 또는 수동)에서 분기되므로. Attach the sup�plied antenna connec�tor cap when no anten�na or external equip�ment is connected
3. 각각의 사용되는 리그마다 셋업(세팅)하시고 .펑션키 즉 단축키로 적용후 사용.

[HL2IFR]

기타 유용한 의견 주실분 계신다면 고견을 기다립니다........