DRAKE MN2700 Manuel d'instruction - Page 9

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CHAPTER ll
INSTALLATION
Carefully remove the MN-2700 from the shipping
carton and examine it for evidence of damage. If any
damage is discovered, immediately notify the
transportation company that delivered the unit. Be
sure to keep the shipping carton and packing
material for the transportation company to examine
if there is a damage claim. Keeping these items is
recommended in any case, since having them
available makes shipment of the unit much easier
should it ever be necessary to return it to the factory
3.
REQUIREMENTS.
Connect the RF output of your transmitter or
amplifier to the XMTR connector of the MN-2700,
using 50 ohm coaxial cable such as RGdlU. Cable
length is not critical. In installations using a
transceiver or transmitter-receiver combinations,
the matching network should be the last item the
out-going RF signal passes through before entering
the feedline to the antenna. The effects of this on
receiver operation will be discussed in Chapter 111,
Operation, of this manual.
for
service.
Connect
the
EXT
GND
post
of
the
matching
net-
work
to
the
station
ground
with
a
short
piece
of
NOTE
heavy
braid.
Fill
out
the
enclosed
registration
card
and
return
it
to
the
factory
within
10
days
of
2.4.
ANTENNA
CONNECTIONS.
purchase
to
insure
registration
and
validation
of
the
warranty.
Antennas
such
as
beam
antennas,
single
band
dipoles,
trap
dipoles,
and
verticals
fed
with
coaxial
cable
should
be
connected
to
the
rear
oanel
connec-
-9-2
LOCATION.
tors marked ANT
1
or ANT
2.
-
Connect
end-fed
long-wire
antennas
to
the
rear
panel
The
MN-2700
will
work
properly
in
almost
any
loca-
screw
terminals
labeled
LW3
or
LW4.
A
good
RF
tion.
Select
a
location
on
the
operating
table
that
ground
should
be
connected
to
the
EXT
GND
post.
will
allow
yoq
to
reach
the
control
knobs
easily.
Antennas
fed
with
balanced
feedline
should
be
con-
Figure
2-1
illustrates
recommended
viewing
options
nected
as
explained
in
Chapter
111,
Section
3-3
of
using
the
hardware
furnished
with
the
unit.
this
manual.
---
STANDARD
I
-
1
,
\
- 4 -
-
O P I I O N A L f t f l
~H,E,,,AL
r r u o l o x
1 4 x
5/8 L O N G
I U P P L I € O W I T H U N l I
Fig. 2-1
Viewing Angle Options