Kenwood PC-1A User manual

Q«ENwoop
PHONE PATCH CONTROLLER
PC-1A
INSTRUCTION MANUAL
"Your new :PC-1A Phone Patch has been carefully engineered and
manufactured under rigid quality standards, and should give you
satisfactory and dependable operation for many years. |
Before using, we suggest that you read through this instruction manual to
become acquainted with correct operation. `
Should any trouble arise with the unit, please contact either your dealer, or
the KENWOOD factory service facility.
FEATURES:
1. The PC-1A Phone Patch provides connection between a transceiver and
a telephone line.
2. It is designed to provide excellent performance with high. isolation
." between receiver input and transmitter. output. ..
3. Its compact design permits convenient installation in a limited space.
NOTE: When using the PC-1A Phone Patch with a TS-930, TS-820, or TS-520 series
transceiver, DO NOT use the Phone Patch IN or OUT jacks on the transceiver.
` Rather, follow the hookup instructions in this manual.
THIS UNIT COMPLIES WITH PART 68, OF FCC RULES.
FCC
REGISTRATION
NUMBER
ALHOTK-70306-OT-N
RINGER EQUIVALENCE 22А
MANUFACTURED BY: TRIO-KENWOOD COMMUNICATIONS, INC..
1111 West Walnut Street
Ċompton, California 90220
Scanned by
Ward Willats • KG6HAF • Felton, California
23 August 2002

RESPONSIBILITY OF GRANTEE OF EQUIPMENT REGISTRATION
ө FCC rules pertaining to the use of phone
patches by radio amateurs
Section 97.79(d) states that "the licensee of an amateur
station may permit any third party to participate in amateur
radio communication from his station, provided that a
control operator is present and continuously monitors and
supervises the radio communications to insure compliance
with the rules."
The Commission noted that this required a control operator
to be on duty at all times during these operations.
Furthermore, it said, all calls not initiated at an amateur
station had to be screened by the control operator before
being placed on the air.
Section 97.114 prohibits amateur licensees from
transmitting or delivering third party traffic "involving
material compensation, either trangible or intangible, direct
or indirect, to a third party, a station licensee, a control
operator, or any other person" or delivering third party traffic
consisting of business communications on behalf of any
party.
ө installation
Before you install your KENWOOD Phone Patch, it is your
responsibility to call the telephone company and inform
them that you are installing a phone patch and you require
them to install a type RJ-11 jack and mating. plug and
cable. Ask the telephone compnay to specify which wires
are to be connected to the two line terminals shown as 6 on
the rear view, Figure 2, of the PC-1A. Give them the FCC
Registration: No.-and. Ringer Equivalence shown on the-front
page of the Instruction Manual. Also be sure to notify the
telephone
company
if,
for
any
reason,
you
discontinue
the
use
of
the
Patch.
The
telephone
company
may
make
changes
to
their
equipment,
facilities,
or
operating
procedures
that
could
affect
the
operation
of
the
Patch.
If
such
changes
occur,
you
should
expect
to
receive
adequate
notice
in
writing
in
time
to
allow
you
to
maintain
uninterrupted
service.
€
A
few
important
rules
to
follow
regarding
Phone
Patches
1. Call the party on the telephone and explain that he will be
on the air.
Explain
any
special
operating
procedures
he
should
observe.
THEN
switch
to
the
PATCH
position.
2. Keep the phone line speech levels as low as possible by
means of the RCVR and XMTR GAIN controls.
Excessively
high
levels
cause
cross-talk
and
interference
with other conversations.
3. Don't let dial tones, dial clicks or telephone operators'
voices go out over the air.
4. Don't jeopardize your license by accepting commercial
calls or by other improper operating procedures.
5. Keep the PHONE PATCH switch in the "off" position at
all times except when actually handling phone patch
traffic.
6. if trouble occurs, immediately disconnect the PATCH
from
the
telephone
line.
Do
not
reconnect
until
the
fault
is diagnosed and repaired.
-THIS
PHONE
PATCH
MAY
NOT
BE
CONNECTED
TO
A
PARTY OR COIN OPERATED LINE.

PREPARATION FOR USE
Accessories
The following accessories are furnished with the unit:
1. Instruction manual B50-4003-08........... р 1 сору
2. Phone Plug 1/8" Е12-0001-05...:............. 1 piece
NOTE: The following accessories are for USA only.
3. 8 pin mic plug ‚ ЕО7-О0852-05................. 1 piece
4. 4 pin mic plug E07-0451-05.................
5.. Warranty Сага... аии шиа кош ын ыы 4 copy
Connecting cables
When operating the unit in combination with your
transceiver, the following cables are required:
(1) A cable for connecting the transceiver EXT SP terminal
to the RX IN terminal.
(2) A cable for connecting your external speaker to the SP
OUT terminal.
(3) A cable for connecting the telephone line to the LINE
terminal. | '
NOTE: Speaker cable grounds must go to the bottom.
screw terminals on the PC-1A. The telephone line
is balanced, and therefore has no polarity.
CONTROLS AND TERMINALS
[Front panel]
(1) MIC:
(2) Meter:
Microphone connector
This indicates the transceiver. audio output
level to the telephone line. Secondly, it is
also used to indicate circuit balance. The
rear panel switch selects meter function.
(3) RX GAIN: This adjusts input signal level fed from the
transceiver to the phone line.
This adjusts output signal level fed from the
telephone. line to the transceiver.
(4) TX GAIN:
(5 PATCH: ON/OFF switch for selecting "patch" or
“through” operation.
CONNECTION
Connect the cables as illustrated below. Consult your local.
Telephone Co. business office before connecting to the
Phone lines.
[Rear panel]
(6) LINE:
(7). SP OUT:
(8) RX IN:
(9) NULL:
(10)MONI/
NULL:
O26
р
аса
For telephone line connection.
Use P4QK-7 cord with plug.
The phone lines, being balanced, have no
polarity.
For connecting an external-speaker. When
the PATCH is "OFF", the speaker is "ON".
Input terminal: Accepts signal from the
transceiver's EXT. speaker output.
This control adjusts balance of the hybrid
circuit. Adjust for minimum deflection of
the PC-1A panel meter with the
MONI/NULL switch at NULL. (See
OPERATION Section for full explanation.)
This switch selects the front panel meter
function. in the MONI position, the meter
indicates the audio signal level fed from the
transceiver to the telephone line.
In the NULL position, it indicates balance of
the hybrid circuit.
2 3 4
Fig. 1 Front Panel View
7 8 9
Fig. 2 Rear Panel View
To EXT. SP jack
External speaker @
|
—L
Telephone
Transceiver TS-930S
line
L
ch —— To transceivers MIC connector on the front panel
Fig. 3. Typical Transceiver Hookup

PC-1A
STANDARD
WIRING
Veiw from cord side .
Function
MIC HOT
PTT
‘| DOWN
UP
AUX 1
AUX2
MIC
GND
Stripped
wire
PTT,
UP/DWN
GND
Brawn
I? 5
(2) ОР
AUX
1
@)
(8)
DOWN
AUX
2
@—
(3)
STBY
GND
(MIC)
(2
—
(D
MIC
GND
(STBY)
on oahwah ~
Fig.
4
8
Pin
Cable
Connector
If
your
transceiver
has
а:4-ріп
mic
connector,
change
the
PC-1A
output
cable
plug
(to
transceiver
mic
terminal)
from
8-pin
to
4-pin.
PC-1A
looo B
сооро
Dco
°
4-pin
mic
plug
(supplied)
Change 8-pin
А
to
4-pin
i
$
To
transceiver
NOTE:.
Please
follow
the
instructions
in
your
transceiver
owners
manual.
Function
MIC HOT Red
РТТ
i
White
Microphone
PTT
GND
Blue
ig.
t
ivers
with
Fig.
5
For
KENWOOD
transceive
MIC
GND
aia
е
а
айа
4-pin
mic
connectors.
If
your
microphone
is
not
equipped
with
an
8-pin
plug.
change
the
connector
as
shown.
Supplied 8-pin mic plug
D
PHONE
RATCH
CONTROLLER
РС-!А
PATCH |
Microphone
Fig. 6 8-Pin Cable Connector
—4-

OPERATION
1. NULL adjustment
1.1 Begin with the PATCH OFF.
1.2 Have someone call you by phone.
1.3 Receive a continuous signal, such as a Marker beat,
on your transceiver. Adjust the transceiver for
normal volume through the speaker.
1.4 Turn the PATCH ON. The external speaker will be
silenced, and the beat will be heard through your
telephone handset receiver. `
1.5 Set the RX GAIN control to max (10), and the
MONI/NULL switch to NULL position.
1.6 Adjust the NULL control for minimum meter
deflection. Return the switch, to the MONI
position.
Null adjustment is now completed.
2. RX GAIN adjustment
After.the NULL adjustment has been completed, adjust
the RX GAIN control so that the transceiver's signal can
be heard clearly through the telephone receiver. An
optimum signal level is obtained when the meter
indicates about О VU. At this time, have your telephone
party check that he can hear the signal clearly.
3. TX GAIN adjustment
Turn the transceiver VOX switch ON. Have your party
speak in a normal telephone voice. Adjust the TX GAIN
control for good VOX operation.
This completes adjustments.
4. With the PATCH OFF, use the microphone and external
speaker independently of the phone patch. Leave the
patch connected, just turn OFF the PC-1A ON/OFF
switch for. normal transceiver. operation. . Do, not... P
disconnect the patch cables.
b. For phone patch operation, turn the patch ON. By
placing the transceiver's VOX switch ON, convenient
VOX operation between the telephone and amateur radio
station is obtained.
6. If your telephone party is not familiar with radio operating
techniques, tell him not to speak unitl the other party
finishes. Tell him to say "over" when he finishes.
7. When the telephone party speaks at a low level or
background noise is high, the VOX circuit will not operate
properly. Reducing the RX GAIN will most often make
the telephone party speak louder. Monitor the voice of
both parties for effective VOX operation. If required, use
the transceiver's transmit switch for manual transmit
receive operation.
8. If you speak into your telephone or your room is noisy,
the VOX will operate.
9. Observe good operating practice, and the law, when
conducting phone patch traffic. Don't transmit dial tones,
dial pulses, ringing or busy signals, or telephone operator
chatter.
REPAIR INFORMATION
SERVICE
Should it ever become necessary to repair this equipment it
MUST
be
returned
to
an
authorized
KENWOOD
Service
Center
or
to
TRIO-KENWOOD
COMMUNICATIONS
INC.,
1111 Walnut Street, Comption, CA 90220. Pack in its ori-
ginal
box and
packing,
and
include
a
full,
detailed
description
of the problems involved.
Please
mention
the
model
and
serial
number
of
your
equipment
in
any
correspondence,
whether
phone
or
written.
NOTE:
When claiming warranty service, please include a photocopy
of
the
bill
of
sale,
or
other
proof
of
purchase
showing
the
date of sale.
SPECIFICATIONS
Impedance Levels
LINE: 600 ohms nominal
RX IN: 8 ohms nominal
SP OUT: 8 ohms nominal
MIC: БОК ohms nominal

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А product of |
TRIO-KENWOOD CORPORATION
17-5, 2-chome. shibuya, shibuya-ku Tokyo 150. Japan
TRIO-KENWOOD COMMUNICATIONS
1111 West Walnut Street, Compton, California, 90220, U.S.A.
TRIO-KENWOOD COMMUNICATIONS, GmbH
D-6374 Steinbach TS, Industriestrasse 8A, West Germany
TRIO-KENWOOD ELECTRONICS, N.V.
Leuvensesteenweg 504, B-1930 Zaventem, Belgium
TRIO-KENWOOD (AUSTRALIA) PTY. LTD.
4E Woodcock Place, Lane Cove N.S.W. 2066, Australia
© 25307 PRINTED IN JAPAN R^50.-A0n03.-08 (61

Please
change
page
4,
Fig.
4
and
Fig.
5.
Fig. 4 8-ріп Cable Connector
TE _Incorrect|_ Correct
AE Le | - ^ |. Green
AUX 2. d. = Yellow «
MIC GND- uni; Bare. wire |
en | mee. | |
| 9 PT UPA
oe DWN: GND
Fig. 5 "For KENWOOD. transceivers with...
in. Funetion.
MIC "HOT
| Whit
Blue. В
Black & | Bare wire
[siete we] oo
"Additional information for page 4 Fig. 6.
To change the MC-50's 4-pin plug to :
8-pin. piug. for example, connect as
follows: |
E 4-pin. plug | 8-ріп. plug
CWE —Pin 1 (оган) cesses Pin l —w kite-
Bek
рїп
2
(Violet)
- -
Pin
a
Bede
Res
—Pin
3
(Rea)
———————
Pin
8-
Brovo
o
Shell-
Pin
4
(Shiela)
m
Pin
7
„ААА
i Noter: Terminals of the 8-pin plug 3, 4,
5. and 6 should not be connected: