Document text
vided herein is not guaranteed or warranted.
This manual is for educational purposes only 4 fe) oO
BP rorizes reproduction is prohibited.
ed.
Genave shall not be liabl
M-220
TRANSCEIVER
R’S MANUAL
VHF -
OWN
LIMITED
WARRANTY &
General Aviation Electronics, Inc. (Genave), warrants this
product to be free from material defects for a period of 90 days
from the date of purchase, provided the warranty registration
card properly filled out is returned by the purchaser to Genave
within 10 days after purchase. This warranty is limited to the
original retail purchaser and is not extended to second owners
of the product.
Our obligation under this warranty is limited to replacement
of any parts (except periodic maintenance items such as bulbs,
fuses, etc.) which, upon our examination, appear to us to be
defective in materials or workmanship. The parts will be re-
placed within 45 days after receipt of the unit, provided the
unit is delivered to the Factory (Customer Service Dept., Gen-
eral Aviation Electronics, 4141 Kingman Drive, Indianapolis,
Indiana 46226) within 90 days after the date of purchase, ship-
ping prepaid. All shipping costs and labor charges shall be born
by the purchaser.
The owner may elect to have the unit repaired at an author-
ized Genave repair facility in which case Genave, within 45
days after receipt of the unit, will replace only those defective
parts returned shipping prepaid to the Factory (Customer Serv-
ice Dept., General Aviation Electronics, 4141 Kingman Drive,
Indianapolis, Indiana 46226). Purchaser shall bear any and all
other costs including but not limited to labor, transportation and
freight.
This warranty does not apply to defects, malfunction, or
breakage due to improper installation or to the servicing thereof
GENERAL AVIATION
General Aviation Electronics, 4141 Kingman Drive, indianapolis, Indiana 46226—Aree 317 - 546-1111
by other than an authorized Genave dealer nor to units that
have been damaged by lightning or other acts of God, excess
current, or any units that have had serial number altered or
removed, Abuse, misuse, tampering, submersion in water or
willful destruction of the unit will also void this warranty.
_ This warranty gives you specific legal rights. You also have
implied warranty rights. In the event of a problem with war-
ranly service or performance, you may be able to go to a small
claims court, a State court, or a Federal District court.
Genave offers this warranty in lieu of any
and all other guarantees or warranties, either
EXPRESSED or IMPLIED, including but not
limited to warranties of merchantibility and/or
fitness for a particular purpose. Any implied
warranties are specifically and expressly limited
to the 90-day period specified herein. Damages
for breach of any warranties, either expressed
or implied are limited to replacement of any
defective parts as specified herein and any other
incidental or consequential damages are ex-
pressly excluded.
ELECTRONICS, INC.
4141 Kingman Drive, Indianapolis, Indiana 46226
AREA (317
) 546-1111
Specifications subject to change without notice
Copyright 1977, General Aviation Electronics, Inc. All Rights Reserved
Oct. 1977
Printed in U.S. A,
rmation provided herein is not guaranteed or warranted.
© 820038
t k. Unauthorized reproduction is prohibited.
Inc. All rights reserved.
This manual is for educational purposes only. The “Tee H an plety
Genave shall not be liable for any 1 damag sU
Copyright © 2007 Genave/NRC,
This manual is for educational purposes only.
Genave shall not be liable
SECTION I
SECTION
SECTION II]
This manual is for educational purposes only.
Genave shall not be liable for
Cc
ij
The accuracy and completeness of the information provided herein is not guaranteed or warranted.
for any loss or damages. Use at your own risk.
Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC,
Inc., all rights reserved.
CONTENTS
GENERAL INFORMATION
Introduction
Description
Specifications
INSTALLATION MANUAL
2-1 Introduction
2-2 Equipment Supplied
2-3 Equipment Required, But Not Supplied
2-4 Optional Equipment Available
2-5 Pre-Installation Check
2-6 Installation Planning
2-7 Fixed or Mobile Installation
2-8 Reserved
2-9 Antenna Considerations
2-10 Accessory Connector - P1001
2~11 Removing Instrument Top Cover
2-12 Tone-Frequency Adjustment
OPERATING MANUAL
Operating Controls
Operating Instructions
Licensing Information
The accuracy and completeness of the information provided herein is not guaranteed or warranted.
any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
opyright © 2007 Genave/NRC, Inc. All rights reserved.
Model: ECOM-220
This manual is for educational purposes only. The SECTION. | ee provided herein is not guaranteed or warranted.
Genave shall not be liable for any s ro risk Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC,
Inc., all rights reserved
GENERAL INFORMATION
1-1. INTRODUCTION
This manual contains all the informa-
tion normally required to license, in-
stall, and operate the Genave ECOM-220
VHF~FM transceiver. .
The maintenance manual contains all the
‘above information, in addition to unit
schematics, alignment data, and parts
lists,
1-2, DESCRIPTION
The ECOM-220 is designed to provide re-
liable, high-quality communications for
various business radio services, such
as: Public Safety, Industrial Radio,
and Land Transportation. The radio was
under strict quality control during its
fabrication, and was thoroughly checked
prior to shipment from the factory. It
will provide many years of satisfactory
operation, if given reasonable care and
handling.
The ECOM-220 is a solid-state, VHF-FM
transceiver designed for the transmis-—
sion and reception of frequency modu-
lated (16F3) radio signals on either of
two possible channels within the VHF
range from 143.9 to 173.4 MHz, Hither
frequency can be selected by use of a
front-panel, two-position rotary switch
The unit is complete with an attached
hand microphone and internally-mounted
speaker. All circuitry employed is the
latest state-of-the-art design, using
the latest in semiconductor and inte-
grated circuit technology ~- including
a solid - state T/R switching circuit.
A 15-pin male plug mounted on rear pan-
el of the ECOM-220 transceiver is des-
ignated as an "Accessory Connector,'
and mates with a 15-pin female connec-
tor to provide a convenient method of
connecting power or optional accesso-
ries to the unit. Standard wiring of
the accessory connector utilizes only
five pins, leaving the remainder avail-
able for options or customized instal-
lation. See Section 2-10,
The transmitter RF output is typically
20 watts from 143,9 MHz to 160,0 MHz,
and 15 watts minimum from 160.0 MHz to
173.4 MHz. The output impedance is 50-
ohms using a standard UHF-type connec-
tor (83-1SP or PL259). An improved heat
sink provides increased transmit—power
stability.
The receiver is a crystal-controlled,
dual-conversion superheterodyne employ-
ing a 4-pole monolithic crystal filter
for good selectivity. A single inte-
grated circuit performs limiting and
detection functions. The 10.7 MHz ist
IF provides good image rejection, while
the 455 kHz 2nd IF improves receiver
stability,
The ECOM~220 transceiver is designed to
operate on +13.75 volts DC primary pow-
er, The Genave PSI-10 power supply can
be utilized when it is desired to oper-
ate the instrument from a 117 volt, 50-
60 Hz source, For mobile operation, the
source may be a battery or the vehicle
electrical system (negative ground).
An easily-removed, two - piece plastic.
case protects the instrument from dirt
and physical damage.
Provisions ‘are made within each trans—
ceiver for the addition of an optional
SA-1 Subaudible Tone Encoder-Decoder.,
This subaudible-tone system keeps the
receiver squelched until a signal con-
taining the proper subaudible, contin-
uous tone is received, The SA-1 board
generates the subaudible tone used to
modulate the transmitter to activate
the receivers in the system, and also
decodes incoming signals. Note that all
operating channels installed in the
ECOM-220 must utilize the same tone
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages.
Model: ECOM-220
Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC,
Inc. All rights reserved.
1-1
This manual is for educational purposes only.
frequency -~- there are no provisions
for omitting (or changing) subaudible
tone on one channel only. A ceramic
resonator on the SA-1 printed-circuit
board determines the frequency of sub-
audible tone being used.
NOTE: If subaudible-tone system is
used, the carrier is automatically
modulated by the subaudible tone
1-3, SPECIFICATIONS
GENERAL:
Front-Panel Size:
Over~all Dimensions:
Power Supply:
Current Drain:
Frequency Range (MHz):
Number of Channels:
Temperature Range:
Weight:
RECEIVER:
Sensitivity:
Selectivity:
Squelch Threshold:
Modulation Acceptance Bandwidth:
Adjacent Channel Rejection:
Intermodulation Response;
Image Response:
Spurious Response:
Audio Output Power:
Hum & Noise Level:
Frequency Accuracy:
Frequency Stability:
TRANSMITTER:
Power Output:
Frequency Range (MHz):
Output Impedance:
Deviation:
Frequency Accuracy:
Frequency spaseenneea
Transmitter, Spuxiou
1-2
Genave shall not be liable for any loss or damages.
The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages.
Copyright © 2007 Genave/NRC, Inc.,
Use at your own risk. Unauthorized reproduction is prohibited.
all rights reserved.
during entire time that transmis-
sion is taking place. Also, the op-
erating frequency must be monitored
to ascertain that it is NOT in use
prior to originating a call. This
monitoring is accomplished auto-
matically by removing the micro-
phone from its hang-up bracket,
2~9/16"" (6.50 cm) x 8-3/16" (20.79 cm)
2-9/16" (6.50 cm) x 8-3/16" (20.79 cm)
x 12-1/8" (30.79 cm)
13.75 VDC, negative ground; min. 11.5V
6.5 amps max, xmit; 0.2 amps receive
143.9 to 173.4; two-chan, separation
60 kHz min. and 1 MHz max.
Two
~30° to +60°C
Approx. 5 lbs. (2.27 kg)
0.35 uV max. for 12 db SINAD - less than
0.55 uV for 20 dB quieting
47,5 kHz
Less than 0.35 nV
More than 5 kHz
40 dB min. @ +25 kHz (EIA);
20 dB quieting
60 dB minimum (ETA)
60 dB minimum (EIA)
60 dB minimum (ETA)
5 watts; 4 watts at 15% distortion
Better than 35 dB below rated output
+500 Hz
55 dB for
+.001%
20 watts, typical; 143.9 to 160.0 MHz
20 watts minimum; 160.0 to 173.4 MHz
15 watts minimum
143.9 to 173.4
50-ohms :
4 kHz minimum; 5 kHz maximum
+200 Hz
Subaudible deviation, 1 kHz +200 Hz
Subaudible freq. tolerance, +0.3 Hz
.0005Z%
6 dB minimum
ational iF 8 806 only. The accuracy and bonpletsness of the information provided herein is not guaranteed or warranted.
Use at your own risk.
Copyright © 2007 Genave/NRC, Inc.
Unauthorized reproduction is prohibited.
All rights reserved. Model ° ECOM-220
This manual is for educational purposes cree The SECTION. AL, proviace herein is not guaranteed or warranted.
any los se
Genave shall not be liable for Ss or damages.
at a ur own ri uthorized reproduction is prohibited.
oe © 2007 Ganaea/iBe. Inc., all cee anny
INSTALLATION MANUAL
2-1. INTRODUCTION
This section provides installation data
and recommendations for fixed, mobile,
or portable operation of the ECOM-~220
VHF transceiver. For complete technical
specifications of the unit, refer to
Section 1-3 (Specifications) in this
manual,
2-2. EQUIPMENT SUPPLIED
a. ECOM-220 Communications Transceiver
with hand microphone and hang-up
mounting clip.
b. Mounting Bracket with thumbscrews
and washers.
ec. Accessory Connector, 15-pin female.
2-3. EQUIPMENT REQUIRED, BUT NOT
SUPPLIED
Base Antenna, 50 ~ ohm
RG-8A/U or RG-58A,
a. Vehicle or
b, Antenna Cable,
as required.
c. Co-axial Connector, PL-259 (83-1SP)
d. Cabling for Power and Audio wiring,
as required,
2-4, OPTIONAL EQUIPMENT AVAILABLE
a. SA-1 Subaudible-Tone PC board.
b. Remote Speakers, SP-5 or SP-6.
ec. PSI-10, AC Power Supply.
2-5, PRE-INSTALLATION CHECK
Visually inspect the unit for any obvi-
ous external damage - such as broken
knobs, dents, damaged mic or radio case.
Any damage NOT related to shipping must
be reported to General Aviation Elec-
tronics, Inc., 4141 Kingman Drive,
Indianapolis, Ind., (46226), Telephone
(317) 546-1111, as soon as possible.
If the
a notation to
press receipt or
packing case shows damage, make
that effect on the ex-
freight bill. Report
2-6. INSTALLATION PLANNING
The unit has been pre-aligned at the
factory on transmit and receive fre-
quencies listed on tag attached to the
unit. If it should be necessary to
change the transmit or receive frequen-
cy, alignment procedures contained in
the ECOM-220 maintenance manual should
be performed by an authorized techni-
cian, using proper test equipment; how-
ever, if new frequency differs from the
factory-alignment frequency by not more
than one half of maximum channel sepa-
ration as listed in the Specifications
(normally 1 MHz,) it will only be nec-
essary to install and net the new crys-
tals,
If ECOM-220 is equipped with optional
SA-1 (Subaudible-Tone Squelch System),
the subaudible-tone frequency will be
listed on tag attached to the unit, and
also on a label affixed to the ‘inside
of transceiver, If it should be neces-
sary to readjust subaudible-tone fre-
quency from factory-set value, refer to
"Tone-Frequency Adjustment" procedure
in this manual.
Before starting transceiver installa-
tion, determine desired mounting method
and location; ascertain that required
AC or DC power is available; determine
location for antenna installation and
routing of co-ax cable to transceiver.
NOTE: In choosing an operating lo-
cation for the instrument, remember
that F.C.C. Rules require that:
"Each transmitter shall be so in-
stalled and protected that it is
not accessible to or capable of op-
eration by persons other than those
duly authorized by the licensee,"
and, that "The operating position
must be under the control and su-
pervision of the licensee."
The transceiver may be mounted in any
convenient position; unit performance
‘ts "CHE “EvanShox rat tons: company any. ae ioc £8 morse it ected bythe: mounting-posi~
age due to
promptly.
Model: ECOM-220
shipping, and “PERE QC lerttic®* 64 dh,“ MDHAUEE,
the unit should NOT be
2-1
ter
This manual is for educational purposes only.
Use
Copyright © 2007 Genave/NRC,
mounted directly above a hot-air regis-
or radiator.
The accuracy and completeness of the information provided herein i
Genave shall not be liable for any loss or damages. A ee
at your own risk.
Inc., all rights reserved.
Be SURE to conmect RED power lead
to +13.75 volts, and BLACK lead to
Unauthorized reproduction is prohibited.
-13.75 volts (ground). If it is
2.7, FIXED OR MOBILE INSTALLATION necessary to extend power leads,
use #14 or heavier gauge insulated
1. Refer to Figure 2-1. If mounting copper wire.
yoke has been installed on trans-
ceiver, remove yoke temporarily. If supply polarity is reversed ac~
For fixed operation, yoke may be cidentally, the unit will be inop-
repositioned on bottom side of unit erative. In this event, check wir-
to function as a supporting stand. ing polarity (RED to positive, and
For either fixed or mobile opera- BLACK to negative), and check the
tion, the yoke may be secured in protective fuse located on trans~
the desired location (under dash or
shelf, on console or desk top, or
overhead, etc.) with appropriate
screws or bolts through two holes
ceiver circuit board just below the
rear-panel power connector. A blown
fuse should be replaced ONLY with a
type 3AG 7 amp fuse.
provided in the mounting yoke.
3, The ECOM-220 transceiver is equip-
2, Connect color-coded power leads, ped with an attached hand micro-
terminated in the rear-panel 15-pin phone; the microphone~mounting clip
connector, to a power source, For is attached to the desired mounting
fixed operation, the source may be surface, using two small screws or
a well - regulated, low-ripple AC bolts.
power supply, such as the Genave
Model PSI-10. For mobile operation, NOTE: If the SA-1 subaudible- tone
the source may be a battery or the option is included in transceiver,
vehicle's electrical system. This then mounting clip MUST be electri-
transceiver is designed to operate cally connected to chassis ground
ONLY on a supply with neg. ground. of the transceiver in order to pro-
vide "hang-up" receiver squelching.
|
TO 13.75 YDC.
a | + RED TO 50 OHM
/ | = BARK ANTENNA SYSTEM
it | ACC. PLUG
MOUNTING YOKE |
, a
i | ~<K
A.C. POWER SUPPLY
TO 115 VAC.
PSI/10
NOTES.
1. HANGER MUST BE CONNECTED TO
CHASSIS GROUND WHEN USING
TONE SQUELCH,
Figure 2-1. Typical Installation.
This manual is stated tgs Purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
enn ae nee ete Goo) eee 1 Sk ice een,
2-2 Model: ECOM-220
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages.
Copyright © 2007 Genave/NRC,
4, After any optional or custom wiring
has been completed, replace trans-
ceiver in mounting yoke, and tight-
en both thumbscrews,
5. Connect 15-pin female receptacle to
mating rear-panel plug. Secure the
connecting wires at appropriate
points,
6. Install co-axial connector on an-
tenna cable as shown in Figure 2-2,
and insert antenna connector into
rear—panel mounted antenna recepta-
cle,
NOTE: The transceiver is designed
to match standard 50-ohm VHF commu-
nications antennas. In the interest
of maximum efficiency, the antenna
system should exhibit a Tow VSWR.
2-8, RESERVED
2-9, ANTENNA CONSIDERATIONS
Communications within the VHF-FM band
are "line-of—sight;" thus, the higher
the antenna is placed, the greater the
operating distance, When considering
characteristics of an antenna system,
it is important to know that an antenna
which provides good, effective trans-
mitting gain will also provide the same
relative gain when receiving.
In mobile installations, the antenna
should be securely fastened to the ve-
Use at your own risk. Unauthorized reproduction is prohibited.
Inc., all rights reserved.
tions should be tight and weatherproof,
Ideally, the antenna should be install-
ed over a perfectly flat ground surface
to assure omnidirectional radiation;
therefore, the center of the auto roof
is the best place to mount the VHF ver-
tical antenna, The flat portion of the
rear trunk deck can be used, but will
result in a directional pattern.
For maximum efficiency, the antenna
should be fed with low-loss 50-ohm co-
axial cable. The loss per 100 feet at
144 MHz is shown in Table 2-1 for sev-
eral popular types of co-ax cable:
Table 2-1.
Cable Type Impedance dB Loss
RG58/A-AU 53-ohms 5.7 dB
RG58 Foam .50-ohms 4.1 dB
RG8 /A-AU 52-ohms 2.5 dB
RG8 Foam 50-ohms 2.2 dB
2-9-1. Antenna Connector Assembly
The procedure for installing a PL~259
(83-1SP) antenna connector is dependent
upon type co-axial cable used - the PL-
259 is installed directly on 0.405" OD
cable such as RG8/A, whereas, the plug
requires an adapter when used with the
0.195" OD cable such as RG58/A, The
procedures for both cable types are
given below, and shown in Figure :2-2,
RG8 Cable
RG58 Cabie
1
COUPLING RING
SOLOED HOLE
hicle, as far from the engine compart-
. ‘i :
ment as practicable, and all connec- Figure 2-2. Connector Assembly
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc. All rights reserved.
Model: ECOM-220 2-3
This manual is for educational purposes only.
The accuracy and completeness of i i i i
Ce pees of the information provided herein is not guaranteed or warranted.
Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
2-9-2, RG8 Cable Procedure
1. Trim end of cable flush; remove vi-~
nyl jacket from 1-1/8" of cable as
shown in Figure 2-2(1). Do NOT
nick braid.
2. Bare 3/4" of center conductor, Trim
braided shield 1/16" and tin. Slide
coupling ring on cable. See 2-2 (2)
tor to provide a convenient method of
connecting power or optional accesso~
ries to the unit. Standard wiring of
the accessory connector utilizes only
five pins; therefore, ten of the pins
are available for options or custom-
ized installation. Figure 2-3 illus-
trates standard wiring of the accessory
connector, and the recommended connec~
tions for use with an external speaker.
above.
NOTE: An external speaker (3.2-ohm)
can be connected to pins 2 and 7 of
the female connector or, a jumper
can be connected between pins 2 and
10 to activate the internal speak-
er. Another suggestion is to use a
3, Screw plug assembly on cable; sol-
der plug assembly to braid through
solder holes; solder center conduc—
tor to plug assembly center pin.
4, Screw coupling ring on assembly. SPDT switch to select either the
internal or the external speaker at
2-9-3, RG58 Cable Procedure will.
1. Trim end of cable flush; remove vi-
nyl jacket from 21/32" of cable as Rec. pe
shown in Figure 2-2 (1). Do NO? Audio. 2 nati
nick braid. Slide coupling ring and Out « 7 mid
‘adapter on cable.
Ext.
2. Fan braid slightly and fold back Spkr
over cable. See Figure 2-2 (2). Int.
Spkr 5
3, Compress braid around cable, Figure 110 umper
2-2 (3), and position adapter to
dimension given in Figure 2-2 (4). 13 “ 13.75V
Press braid over adapter sleeve and ; ; Input
trim to dimension shown, — ,15 +
4, Bare 1/2" of center conductor as PLOL gaa
shown -- do NOT nick the conductor. :
Pre-tin exposed center conductor. _
——— = Standard Wiring
---e- = Added Wiring for Ext.
Speaker
w
Screw plug assembly onto adapter
sleeve, and solder the praid to
plug assembly through solder holes.
Next, solder center conductor to
plug assembly center pin.
X = Remove jumper to use
Exte Speaker
6. Screw coupling ring on plug assem- Figure 2-3. Accessory Connector
“bly.
2-11. REMOVING INSTRUMENT TOP COVER
2-10. ACCESSORY CONNECTOR ~ P101
To gain access to the interior of unit
remove plastic top ‘cover by removing
two 6/32 screws which secure rear of
top cover to heatsink, Then, lift rear
The 15-pin male plug mounted on rear
panel of the ECOM-220 transceiver is
designated as an "Accessory Connector,"
and mates with a 15-pin female connec-
This manual is for educati
ational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or war ted
ranted.
G ;
enave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reprogyction.jis el
24 Copyright © 2007 Genave/NRC, Inc. All rights reserved. Model id 2 OM=220
: ro
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
of cover upward while sliding cover to- 5. If another unit with the correct
ward rear of:instrument. subaudible-tone frequency is avail-
able, it may be used for on-the-air
NOTE: If thumbscrews have not been testing; otherwise, set a signal
removed from sides of transceiver, generator to a10UuV level on the
they must be loosened a few turns appropriate operating frequency
before attempting to remove unit with +1 kHz deviation at the de-
covers. sired subaudible - tone frequency.
2-12. TONE-FREQUENCY ADJUSTMENT 6. With test signal applied to receiv-
er, note that receiver unsquelches
The SA-1 tone-squelch board is located and operates normally,
at left-center of main PC board. If it
is necessary to change tone frequency 7. The transmitter subaudible devia-
from the factory-set value, proceed as tion should be checked. The devia-
follows: tion should be 1 kHz +200 Hz.
1. With top cover removed from trans-
ceiver, locate the Ceramic Resona-
tor on subaudible - tone PC board.
This Resonator determines the tone
frequency; therefore, a different
Resonator is required for each dis-
crete subaudible - tone frequency.
2. Remove SA-1 subaudible-tone board SA-] TONE
from the transceiver by lifting the BOARD
board up and off mating pins. Un-
solder and remove Ceramic Resona-
tor.
3. If subaudible-tone frequency is be-
tween 67 and 136.5 Hz, connect pin
8 of IC102 to pin 14 of IC101; but,
if frequency is between 141.3 and
250.3 Hz, connect pin 8 of 10102 to
pin 6 of Icl10l. Refer to Figure
2-4.
4. Solder new Resonator leads in place
and carefully replace tone board in
transceiver. Connect transceiver to
its power source.
war
SA-}
eA
(TOP VIEW)
3 R113
7 oo
Ve 7
Adj. 1C101
3
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
M d 1 P G shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
(8) e * ECOM-270 Copyright © 2007 Genave/NRC, Inc. All rights reserved. 2-5
This manual is for educational purposes only. The SECTION LLL FE peddenat herein is not guaranteed or warranted.
se
uthorized reproduction is prohibited.
Genave shall not be liable for any lo
Ss or damages.
Copyright © 2007 Ganaec Mee:
at yous own ri
Inc.
all ae Bsany
OPERATING MANUAL
3-1. OPERATING CONTROLS
For reliability and operating conve-
nience, only essential operating con-
trols are installed on the unit's front
panel. The functions of these controls
are ag follows:
1. Volume control/On-Off switch
2. Squelch control
3, Channel-Selector switch
4, Transmit-Indicator lamp
The push-to-talk button on the micro-
phone also functions as an operating
control. Unit operation is quite sim-
ple, as explained below:
3-2, OPERATING INSTRUCTIONS
1. Turn VOLUME (#1) and SQUELCH (#2)
controls fully counterclockwise.
2. Rotate CHANNEL SELECTOR (3) to de~
sired operating frequency.
3. Rotate VOLUME control clockwise un~-
til switch clicks; this turns ON
transceiver.
If transceiver is equipped with the
SA~1 subaudible-tone option, it is
necessary to deactivate tone-~-con-
trolled squelch by removing micro~
phone from its hanger. This breaks
the "tone-enable" ground, and dis-
ables tone-squelch system.
Now, xotate VOLUME control clock-
wise to adjust receiver volume to
desired level.
Turn SQUELCH control clockwise un-
til background noise just disap-
pears, NOTE: Do NOT attempt to ad-
just SQUELCH control if a signal is
being received,
To transmit, depress microphone
pushbutton. If unit is equipped
with subaudible-tone system, it is
important to monitor channel before
transmitting to insure that it is
clear, The hand microphone circuit-
ry is designed in such manner that
receiver squelching is deactivated
when microphone is removed from its
hanger
Thi i i
is manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted
Genave shall not be liable for any loss or damages.
Model: ECOM-220
1 Use at your own risk.
Copyright © 2007 Genave/NRC,
Inc.
Unauthorized reproduction is prohibited.
All rights reserved.
3-1
This manual is for educational purposes only.
The accuracy and completeness of the information i i i
Genave shall not be liable for any loss or damages. seh ie tagger aC ices Sr ala
Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
8. The TRANSMIT-INDICATOR lamp (#4)
will illuminate when transmitter is
operating; then, hold microphone 3
to 6 inches from your mouth, and
talk in a normal voice.
9, Release TRANSMIT pushbutton to lis-
ten.
NOTE: The squelch circuit, which is
adjusted by front-panel control,
quiets receiver in the absence of
an incoming signal on the assigned
operating frequency; however, any
station in your vicinity, operating
on this frequency, will be heard.
With the tone-squelch system, how-
ever, only transmitted signals car-
rying the proper subaudible tone
are heard, as explained previously.
3-3, LICENSING INFORMATION
Licensing requirements vary with the
service for which this unit will be
used; however, all services require the
station transmitter to be licensed.
Further, all transmitter adjustments or
tests during or coincident with the in-
stallation, servicing, or maintenance
of a radio station, which may affect
the proper operation of such station,
shall be made by or under the immediate
supervision and responsibility of a
person holding a first- or second~class
commercial radio operator license, ei-
ther radiotelephone or radiotelegraph,
who shall be responsible for the proper
functioning of the station equipment.
Note, however, that in many services an
unlicensed person, after having been
authorized to do so by the station li-
censee, may operate from a control
point a mobile, base, or fixed station
or from a dispatch point a base or fix-
ed station, during the course of normal
rendition of service. The minimum class
of operator authorization required for
each specific classification of station
is set forth in the appropriate F.C.C,
rule part.
The following technical information is
intended to aid ECOM-220 users in com-
pleting the application for radio sta-
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
tion authorization, Only technical data
pertaining to the transceiver are shown
below; all other station particulars
must be furnished by the licensee.
Transmitter Input Power: 45 watts
Transmitter Output Power: 20 watts
Type of Unit: Transceiver
Type Acceptance/Model No: T-7043200
Frequency Range (MHz); 143.9 to
173.4
Frequency Tolerance: -0005%
Emission: 16F3
Approved under Rule Part 21, 74, 81,
Numbers: 87, 89, 91,
and 93
For additional information on filling
out the appropriate application forms,
consult the F.C.C. instruction sheet
provided with that form, Note that some
forms may be completed either by PRINT-
ING IN INK, or by TYPING; whereas, TYP-
ING is MANDATORY for certain F,.C.C, Ap~
plication forms. Two of the more common
forms used to apply for a license for
the ECOM~220 transceiver are F.C.C.
forms 400 or 425, depending upon the
usage and/or geographic location of the
proposed station, To determine which
form is required, contact nearest FCC
Field Engineering Office as listed be-
low -~ they will also supply the appro-
priate forms.
The procedures for obtaining necessary
licenses are found in the Federal Com-
munications Commission Rules and Regu-~
letions. The services and the corre-
sponding F.C.C, rule part numbers, un-
der which the ECOM-220 can be used, are
as follows:
Any of these volumes may be purchased
from the Superintendent of Documents,
U.S. Government Printing Office, Wash-
ington, D.C, 20402.
Copyright © 2007 Genave/NRC, Inc. All rights reserved.
3-2
Model: ECOM-220
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
3-3-1. F.C.C. Rule Part Numbers
Domestic Public Radio Services (Other than Maritime Mobile)
F.C.C. Rules & Regulations, Volume VII, Part 21
Domestic Public Land Mobile Radio Service
Rural Radio Service
Experimental, Auxiliary, and Special Broadcast,
F.C.C,. Rules & Regulations, Volume III, Part 74
Remote Pickup Stations
Stations on Land in the Maritime Services
F.C.C. Rules & Regulations, Volume IV, Part 81
Public Coast Stations
Marine Utility Stations
Fixed Stations Associated with the Maritime Mobile
Service
Stations Operated in the Land Mobile Service for
Maritime Purposes
Aviation Services
F.C.C, Rules & Regulations, Volume V, Part 87
Civil Air Patrol Stations
Public Safety Radio Services
F.C.C. Rules & Regulations, Volume V, Part 89
Local Government Radio Service
Police Radio Service
Fire Radio Service
Highway Maintenance Radio Service
Forestry-Conservation Radio Service
Special Emergency Radio Service
Industrial Radio Services
F.C.C. Rules & Regulations, Volume V, Part 91
Power Radio Service
Petroleum Radio Service
Forest Products Radio Service
Motion Picture Radio Service
Relay Press Radio Service
Special Industrial Radio Service
Business Radio Service
Manufacturers Radio Service
Telephone Maintenance Radio Service
Land Transportation Radio Services
F.C.C, Rules & Regulations, Volume V, Part 93
Motor Carrier Radio Service
Railroad Radio Service
Taxicab Radio Service
Automobile Emergency Radio Service
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
; Mode] : ECOM-220 Copyright © 2007 Genave/NRC, Inc. All rights reserved. 3.3
. eee.
This manual is for educational purposes only.
Genave shall not be liable for any loss or damages.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
ALASKA, ANCHORAGE 99510
G-63 U.S.P.0, and Courthouse Bldg.
Box 644, 4th and F Streets
CALIFORNIA, LONG BEACH
Room 501
3711 Long Beach Bivd.
CALIFORNIA, SAN DIEGO 92101
Fox Theatre Bldg.
1245 7th Ave.
CALIFORNIA, SAN FRANCISCO 94111
323-A Customhouse
555 Battery St.
COLORADO, DENVER 80202
Suite 2925, The Executive Tower
1405 Curtis St.
DISTRICT OF COLUMBIA, WASHINGTON 20554
Room 411
1919 M St. NW.
FLORIDA, MIAMI 33130
Room 919
51 Southwest lst Ave,
FLORIDA, TAMPA 33602
809 Barnett Office Bldg,
1000 Ashley Dr.
GEORGIA, ATLANTA 30309
440 Massell Bldg.
1365 Peachtree St. NE.
HAWAII, HONOLULU 96808
502 Federal Bidg.
Box 1021, 355 Merchant St.
ILLINOIS, CHICAGO 60604
3935 New Federal Bidg.
230 South Dearborn St.
LOUISIANA, NEW ORLEANS 70130
829 F. Edward Hebert Federal Bldg.
600 South St.
MARYLAND, BALTIMORE 21201
819 Federal Bldg.
31 Hopkins Plaza.
MASSACHUSETTS, BOSTON 02109
1600 Customhouse
aii anyal is forwjeducational purposes only. The accuracy and com i i
d 3 pleteness of nf at rovided herein is it
65 ta @en eshall not be liable for any loss or damages. 2 ee ve Rie oeuiniveas
Copyright © 2007 Genave/NRC, Inc.
3-4
F.C.C, Field Engineering Offices
Use at your”o
The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Use at your own risk. Unauthorized reproduction is prohibited.
MICHIGAN, DETROIT 48226
1054 Federal Bldg.
231 West LaFayette St.
MINNESOTA, ST. PAUL 55101
691 Federal Bldg. and U.S, Courthouse
316 North Robert St.
MISSOURI, KANSAS CITY 64106
1703 Federal Bidg.
601 East 12th St,
NEW YORK, BUFFALO 14202
1307 Federal Bldg.
111 West Huron St.
NEW YORK, NEW YORK 10014
201 Varick St,
OHIO, CINCINNATI 45231
8620 Winton Road
OREGON, PORTLAND 97204
1782 Federal Office Bldg.
1220 Southwest 3d Ave.
PENNSYLVANIA, PHILADELPHIA 19106
James A, Byrne Federal Courthouse
601 Market St.
PENNSYLVANIA, MONROEVILLE 15146
(Pittsburgh Area)
William Penn Highway
PUERTO RICO, HATO REY 00918
747 Federal Bldg.
TEXAS, DALLAS 75242
13E7 Earle Cabell Federal Bldg.
1100 Commerce St.
TEXAS, HOUSTON 77002
5636 New Federal Office Bidg.
515 Rusk Ave,
VIRGINIA, NORFOLK 23502
Military Circle
870 North Military Highway
WASHINGTON, SEATTLE 98174
3256 Federal Bldg.
Horized reproduction is prohibited.
All rights reserved.
Model:
ECOM-220
This manual is for educational purposes only.
‘ Genave shall not be liable for any loss or damages.
GENERAL
AVIATION
ELECTRONICS
a deaf tat toe Ye tat eee |
4141 KINGMAN DRIVE
INDIANAPOLIS, IND. 46226
AREA 317-546-1111
Remove
Jumper
The accuracy and completeness of the information provided herein is not guaranteed or warranted.
Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
Service Bulletin
SB-7806 October 10, 1978
SUBJECT: ECOM=220; Failure of IC102 and IC103.
Reports from the field indicate that in certain types
of ECOM-220 installations (mainly vehicular), excess-
sive failures of the FM Detector (1IC102). and the Audio
Output (IC103) have been experienced.
An engineering analysis of the failures indicates that
the ICs are being destroyed by short~duration voltage
spikes (transients) existing on the 13-VDC input line.
The problem can be corrected by installing a 50 uH
choke (Genave P/N 1802678) in series with the 13-volt
line, between fuse F301 and polarity-protection diode
CR304,. Mounting holes for choke Z101 already exist in
the transceiver PC board; thus, it is only necessary
to remove a jumper, and then solder Z101 in place. See
Figure 1 below.
The 50 uH choke Z101 (Genave P/N 1802678) will be
supplied NO CHARGE to dealers who encounter this
problem.
tks
+
Pe
a
a
oo
382
SED
JUMPER
(
\
CR304
R303
Ssw302 °
C410
Z101
P101
This manual is §for educational purposes only. The accuracy and completeness of the information provided heréin is not guaranteed or warranted.
enave shall not be liable for any loss or damages.
Use at your own risk. Unauthorized reprédtction is prohibited.
Copyright © 2007 Genave/NRC, . All rights reserved. ——
Figure Tf.
This manual is for educational purposes only. The accuracy and completeness of the information provided herein is not Guaranteed or et entes:
Genave shall not be liable for any loss or damages. Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc., all rights reserved.
ere Service Bulletin
AVIATION
ELECTRONICS
INC.
SB=7905 June 22, 1979
ae SUBJECT:
ECOM-220 & GMT-Series Transceivers;
Rear-Panel Support Bracket.
4141 KINGMAN DRIVE In some radio installations used in heavy-duty
INDIANAPOLIS, IND. 46226 vehicles, vibration may be severe enough to cause
BRENT? SARL ESE the transceiver to pivot on the two thumbscrews
which secure unit to its mounting bracket. This
may allow unit to rotate so that controls on front
panel are inaccessible and, for units housed in a
plastic case, can damage the plastic stabilizing
teeth on the transceiver case positioner.
The engineering department has devised a rear-
panel support bracket for those installations in
which vibration is a problem. The bracket consists
of a short piece of perforated hanger strap which
is bolted through the fins on the rear-panel heat-
sink as shown in Figure 1. The remaining end of
the strap should be anchored to a suitable support
in the vehicle. The necessary hardware is readily
available at your local hardware store.
PERFORATED
1/4-20x3° LONG BOLT
HANGER STRAP .
Dre ery, t)
UMW 8
LOCKWASHER
Q
Ve
S)
; FLAT WASHER
a,
we LOCKWASHER
Ss 1/4-20 WING NUT
ays
= 4
i i i i i d
i i ly. Th acy and completeness of the information provided herein is not guaranteed or warrante
sean oe ee ae dese Or dateages. Use at your own risk. Unauthorized reproduction is prohibited.
Copyright © 2007 Genave/NRC, Inc. All rights reserved.
Figure 1.