Vertex VX-10 Service Manual

Alignment
Alignment Preparation & Precautions
A SO-n RF dummy load and in-line wattme-
ter must be connected to the main antenna jack
in all procedures that call for transmission, ex-
cept where specified otherwise. Correct align-
ment is not possible with an antenna.
After completing
one step, read the following
step to determine whether thesame test equip-
ment will be required. If not, remove the test
equipment (except dummy load and wattmeter,
if connected) before proceeding.
Correct alignment requires that the ambient
temperature be the same as thatof the transceiv-
er and test equipment, and that this temperature
be held constant between 20 and 30 °C (68- 86
°F). When the transceiver is brought into the shop
from
hot or cold air, it should be allowed time to
come
to room temperature before alignment.
Whenever possible, alignments should be
made with oscillator shields and circuit boards
firmly affixed in place.
Also,
the test equipment must be thoroughly
warmed up before beginning.
2-2
Rear Case Alignment Points and
Connedlons (wl ballary ramoved)
(o (
@
GND
TC1001
PLLRef.Osc
I_
~~o)
@
BATI
Note: Signal levels in dB referred to in the alignment
procedure are based on 0 dB~= 0.5 ~ V.
Set up the test equipment as shown for trans-
ceiver
alignment, apply 7.2 VDC power to the
transceiver. Refer to the drawings above for
Alignment Points.
PLL Reference Frequency
0 With the wattmeter, dummy load and fre-
quency counter connected to
the antenna jack,
and while tuned to the center of the band, key
the transmitterand adjust TC1 001 on the RF
UNIT, if necessary,
so the counter frequency
is within 100Hz of the displayed frequency
on the VX-10.
RF SIGtW... GEN:RAlOR
VX-10 VHF Band Service Manual
'-..._/
\_,·
"-"
. .__,_,

Vertex VX-10 Specifications

General

Brand	Vertex
Model	VX-10
Category	Radio
Language	English