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Please read instructions and a manual before
assembling ago or use well. |
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Instructions： |
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1. When I
place an earphone, and a power supply of current
opportunity is crowded, I enter. After use, I
pull an earphone by all |
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means,
and a power supply is cut off. |
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2. Resistance 15
of them, condenser 20 (including five
electrolysis condensers) are in this plane.
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Some
condensers The capacity value expresses it with
a number： |
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With the
real capacity value that the first letter, the
second letter express with a number, the third
letter increases it to the number I |
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show the
number of 0.For example, 101 indication 10 shows
with one +0 that is 100pF. As for 510, there is
no zero after 51,In other |
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words 222
that 102 showing 51pF is clogged up with two ten
+0s, and show 1,000pF in 2,200pF, 104100,000pF
that is to say I display 0.1uF. |
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3. Glass
small in this kit as for detection pipe D1,
capacitive diode (Bali cap) D2 and Zener diode
D3 It is particularly good, and please |
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watch the
appearance with enclosure product (full-fledged
black one, cathode) because I resemble closely
when I use it. |
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4.This
plane is a thing of association of CRSA. If
there is an opinion, please contact it as
follows. |
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Addrice：〒100012
Beijing City Chaoyang District overseas Chinese
Castle 11-2-402 room |
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Telphone：86‐105175590-8006,86-13391633237,86-13391633219,Fax：86‐105175590-8002 |
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PJ-80
type direction measurement receiver explanation： |
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This
machine is a Receiver kit of the opening of the
spread type-type 80m band, and it is easy, and
the circuit is easily assembled |
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with cost
cheapness. The young people are suitable to use
it for ARDF activity and the production activity
of a junior high student in |
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particular and the primary schoolchild. |
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Main
performance： |
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1. A reception
frequency range： 3.5MHz - 3.6MHz |
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2.
Directionality： That's all. distance 3m of the
smallest direction judgment |
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3.
Measurable distance： More than 300m（When I use
the PX-80 type signal source which an antenna
does perpendicularly） |
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Explanation for
assembling： |
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1. I put
adhesion shielding paper on the inside of the
box： It usually is already put. |
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2. Assembling of
rod antenna： I insert rod antenna in a hole for
antennas of top right corner of a box and fix it
with a screw.I
put
a |
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washer in
the box inside. Put a terminal in a screw of rod
antenna; and flat washer, spring boo Shoo, It
links it to end switch K1 by a |
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nut. |
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3. A
battery board (the metal battery board that one
has a small battery board of the circuit board,
two)： |
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It is the
battery box of the right side with a battery
board of big one I insert it in the gap. It is a
gap of |
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the left
of the battery box with a battery board (there
being a spring carelessly, minus pole) of small
one I am similar and can enter. All |
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the
batteries belonging under series in the
direction. |
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4. I fasten the
line, and match plastic with the figure of the
circuit board and fix pasting up, the coil of
the antenna in Thailand lap. |
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5.
Inspection and the assembling of the part： I
check the number of parts, numerical value,
quality before soldering well. Of the
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liquid of
the electrolysis condenser Is not there
disconnection of the drawer line of white)
a B1 (core black) B2( core whether there is
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not a
leak; of a diode, the transistor? I check it
whether a characteristic is good. Before
soldering, I cut the foot of the part into short
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pieces
properly. When install LM386; of the foot Be
careful about line order. |
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6. According to a
wiring diagram, I lay a bar antenna, rod
antenna, the battery. |
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A circuit check： |
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1. The direct
current movement point measurement： |
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（1） The both ends
voltage of Zener diode D3 is a thing in the
range from 3.5 to 4.4V. |
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(2） BG1 (TR))： It
is usually designed the adjustment unnecessary
about 2 about 1.5 - 3VBG3 R12 both ends |
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voltage - 2.5V the
about 0.4 -1v BG2 R9 both ends voltage the both
ends voltage of R3. |
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（3） The ground
voltage vs. a thing of each foot of LM386 (a low
frequency amplifier)： Pin1： 1.2V, Pin2, three or
four： 0V, |
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Pin5： 2.8V, Pin 6：
5.8V, Pin7 ： 2.8V, Pin 8 ： 1.2V |
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2. The adjustment
of the oscillator： |
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（1） I adjust it
with a high frequency signal generator |
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1. I pass
W2 to the central standfast |
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2. A high
frequency signal generator establishes it in the
range of the 3.5-3.6MHz band |
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3. I let
a bar antenna connect the output of the high
frequency signal generator properly. |
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4. I change the
frequency of the high frequency signal generator
and confirm that I hear the sound of the |
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receiver. I turn a
core of B2 with a high frequency signal
generator as 3.55MHz, and a signal passes it.
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5. I turn
a W2 knob and confirm that I can receive a
signal of 3.5-3.6MHz having room in both sides.
When I cannot receive it in high |
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one, the
low knob, I regulate it I turn a core of B2
again, and to be able to receive 3.5-3.6 ranges.
When a frequency range is too big, |
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I make
resistance value of R14 big. The reverse reduces
resistance value. |
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（2） I adjust it in
80m band ARDF signal source |
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1. I invest W2 in
a reverse clock course full and return it to
some clock courses. |
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2. As for
the receiver, a signal source adds 3.5MHz signal
to an occurring antenna near. |
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3. I turn B2 (a
white core) and receive the frequency and hear
about 1,000Hz. |
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4. I attach the
receiver to the antenna which changed 3.6MHz
into the occurring signal source near. |
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5. I
adjust W2 to the order clock direction and am
known by a sound of 1,000Hz. |
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6. I
confirm that I can receive reception frequency
having room on the both ends of the B2 knob. |
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7. When I am too
small with a value of R14 greatly when a
reception frequency range is too big, I am small
with a value of R14. |
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3. The adjustment
of the antenna circuit： |
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（1）
Volume adjusts a high frequency signal generator
or 3.5MHz signal of TX80 to a maximum in
reputation, |
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C1, and
volume is greatest When I am similar and do not
become it, I move it, and the position of the
coil on the bar antenna |
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becomes
the full volume. |
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4. The adjustment
of the high frequency amplifier circuit： |
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（1） I
receive a high frequency signal generator or a
signal of TX80, and I turn B1 (a black core)
slowly, and volume seems to |
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become
greatest I am similar and do it. If a core still
grows big at the most upper end, I do it
and adjust some C3 to a small value |
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again. A
core most |
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5. Adjustment of
the directionality： |
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（1）
It was a little distant in a place with a few
obstacles such as buildings and installs a
signal source. Do an antenna |
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perpendicularly. At first signal source and
dozens of meters check a "tow direction"
characteristic of a bar antenna in a remote
place |
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(by
machinery) |
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