SEA 222 User manual

SEA 222 OPERATOR'S MANUAL
Featuring a unique "softouch" keypad, the SEA 222 is as easy to operate as a
microwave oven. Just follow the directions in this booklet.
The "brain" of the SEA 222 is divided into two parts:
1. 290 factory programmed frequency pairs selectable by channel number
from EPROM memory.
2. 100 channels of "scratch pad" memory for front panel programming and
recall (Note: 10 of these channels are "EMERGENCY" channels).
When operating your SEA 222 please note:
1. Anytwo-digitkey strokefollowed by "enter" will recall user-programmed
channels 10-99;
2. Any 3 and 4-digit key stroke followed by "enter" recalls factory -pro-
grammed channels.
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A UNIT OF DATAMARINE INTERNATIONAL, INC.
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FRONT PANEL CONTROLS:
DISPLAY: The eight-digit alphanumeric display provides the operator
with frequency and channel data.
4 x 4 KEYPAD 16 keysallowthe operatorto communicatewith thecomputer
which controls radio functions. For simple operation, an
"operator friendly" software package is used in conjunction
with the display. All of the keys are listed below.
ENT Enters previously keyed data into the computer.
Number Keys Keys numbered 0 through 9 enter required numerical data
into the computer.
(Arrows)
.....
These keypads permit receiver tuning up or down in 100 Hz
steps.
CH/FR Allows the operator to display either channel number or the
frequency of operation. Example: pressing this key when the
display reads "CHAN 801" causes the displayto indicatethe
receiver operating frequency 'assigned to channel number
801 (8718.9 KHz).
SQL Activates
or deactivates the voice operated squelch system.
When thesquelch is activated,the mostsignificantdigitin the
display will contain the letter "Q."
EMER Allows
.. operator instant recall of programmed emergency
channels.
TO PUT YOUR SEA 222 IN THE OPERATING MODE:
Turn thevolume ON/OFF knobon. Thedisplaywill read "SEA 222", then
"2182.0."
Afterthree minutesthe radio is ready to operateon 2182.0 kHz (to comply
with FCC standards).
TO DIM THE DISPLAY:
Press: any single digit followed by "ENT'' ("O'' being off and "9" being
bright).
Example: "9", "ENT" (brightest display)
"O", "ENT" (extinguishes display)
Restore display to maximum brilliance by touching any keypad when
display is extinguished.
TO TURN THE AUDIO FEEDBACK OFF/ON:
To turn off the beep, enter any even digit and the "ENT" key.
Example: Press "6", "ENT''.
To turn the beep back on, enter any odd digit and the "ENT" key.
Example: Press "7", "ENT". Note: this modification only affects SEA
222's with serial number higher than X2724.
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TO SELECT CHANNELS OR FREQUENCIES STORED IN THE
FACTORY PROGRAMMED MEMORY OF THE SEA 222,
FOLLOW THESE STEPS:
Thefactory programmed frequencies are listed on page 7ofthis booklet.
Access to these frequencies is explained on pages 3, 4, and 5.
To select a channel by number: Press the desired three or four digit
channel number, then "ENT'.
Example: Press "403", then press "ENT'.
Display will read "CHAN 403". The SEA 222 is ready to
operate on Channel 403.
TO DISPLAY THE FREQUENCY ASSIGNED
TO A CHANNEL NUMBER:
Press: "CH/FR" keypad whileyourdesiredchannel number is displayed.
Example: Press
"CH/FR" keypad when the display reads "CHAN 403".
Display will indicate the receiver frequency 4363.6 KHz.
Press: "CH/FR" keypad again, display will revert back to
"CHAN 403".
TO PROGRAM THE SEA 222 "SCRATCH PAD" MEMORY:
Press: 8888888 (seven 8's).
Display will read: "PROGRAM," then "BIN #?".
The SEA 222 is now in Program mode.
Press: Desired two digit bin number, then "ENT'.
Example: Press "10"{ "ENT'.
Display will read "TX FREQ".
Press: desired transmitter frequency (if programming receive only fre-
quency, press "ENT').
Example: Press 124292, "ENT".
Display will read "A3A?".
Press: "1'', then "ENT' for channels requiring -16dB carrier
insertion (A3A
is seldom required) or "ENT' fornormal A3J (no
carrier operation).
Display will read: "RX FREQ".
Press: "ENT' for simplex frequency, or your desired RECEIVER fre-
quency for DUPLEX or receive only frequencies.
Example: For DUPLEX channel press: 1, 2, 3, 4, 5, 6, "ENT'.
This will enter the frequency 12,345.6 KHz in the receiver
frequency memory.
Display will read: "STORED".
4
(
The frequency is stored in BIN 10.
The radio is now ready to program the next location.
Display will flash "BIN#?".
Note: To program emergency channels, follow the previous steps,
using a single digit number (0-9) instead of a two digit number,
followed by "ENT'.
TO REPROGRAM A CHANNEL:
To overwrite already programmed information:
Re-enter Program Mode (Press "8888888").
Press desired two digit BIN #, then "ENT".
Example: "10", "ENT".
Display will read "BIN FULL".
Press: any numeral key.
Example: Press "1 ".
Display will read "TX FREQ?".
Continue programming as explained in the section TO PROGRAM THE
SEA 222 "SCRATCH PAD" MEMORY.
TO ERASE CHANNEL FREQUENCIES:
Enterthe program modeand selectthechannel to be erased. The display
will prompt "BIN FULL". Press any numeric key. The display will
prompt"TX FREQ?", press "ENT'. The display will prompt "RX FREQ?",
press "ENT". The frequency information for that channel has been
erased and the display will prompt "BIN#?".
TO ENTER SCAN MODE:
Channels 10-19arereserved forscanning and you can program upto 10
channels using the program mode. To activate, turn radio off, then on to
set coupler
in neutral tuning mode (it may be necessary to reprogram
squelch threshold for satisfactory operation).
To start scanning, press
"CH/FR", then"•". Scanning stops on active channels and resumes
when channel becomesinactive.
To step overan unwanted active chan-
nel, press "4. ". To stop scanning, press "EMER" (stops on present
channel).
TO RECALL A FREQUENCY OR CHANNEL FROM
SCRATCH PAD MEMORY:
Press desired two digit BIN #, "ENT".
Example: Press: "10", "ENT".
Display will read: the receive frequency stored in that bin, or
"empty".
Then press: "CH/FR" keypad.
Display will read "CHAN 10".
(Note: Scratch pad memory must be programmed in the field.)
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TO ADJUST THE SQUELCH THRESHOLD:
Put the SEA 222 into PROGRAM mode (see previous section TO
PROGRAM THESEA 222 "SCRATCH PAD" MEMORY). Displaywill read
"PROGRAM", then "BIN#?".
Press: "SOL" button.
Display will read "SQ 0-9?" (4 is the factory set threshold).
Press: desired single digit between 0-9 and "ENT".
("O" is off and "9" is
maximum.)
TO EXIT THE PROGRAM MODE:
Press: "EMER" or:
If no entry is made for 10 seconds after program entry, the system will
automatically exit the Program Mode.
Display will read the last frequency programmed or "2182.0" if no
frequency was previously programmed.
Press: "CH/FR".
Display will read channel number.
TO ENTER A RECEIVE ONLY FREQUENCY:
Exit the Program mode.
Press: desired five or six digit frequency between 2000.0 and 24000.0,
then "ENT".
Example: Press "1,0,0,0,0,0" then "ENT".
The operating system will interpret this as a RECEIVE fre-
quency of 10,000.0
kHz.
The transmitter is inhibited in this mode.
TO SELECT AN EMERGENCY CHANNEL:
Press any SINGLE DIGIT, then "EMER".
Example: Press "O", "EMER".
Display will read
2182.0.
(Note: Up to 10 emergency frequencies (0-9) may be stored in scratch
pad memory.)
As already noted, CHANNEL 0 is loaded with 2182.0 kHz.
6
(
POINTS TO REMEMBER:
• It may help to read the comprehensive instructions in your SEA 222
Instruction and Maintenance Manual before attempting to operate your radio.
The information
in this bookletisashortened version ofthose instructions, and
assumes a certain .level of familiarity with the equipment. For your conven-
ience, keepthis "howto" information and frequency listing in ahandy placefor
quick reference on board your vessel.
0 Let your SEA 222 warm up for at least three minutes. Transmitting
before 3 minutes may result
in a violation of FCC regulations.
• Confused? If at any time during the programming process, you are
uncertain as to howto proceed, press "EMER" orjustwait 10 seconds. At this
point you may re-enter the Program Mode and try again.
• Any frequency between 2000.0 kHz and 24000.0 kHz may be
selected for entry into the "scratch pad" memory. Before using them,
remember they must be legally authorized for the desired operating service.
Unauthorized use of frequencies could result in a citation by the FCC. When
the SEA 222 is to be used
in services other than the marine service, it is
possible to provide a special program for the permanent memory. Contactthe
factory for information regarding special programming.
SEA 222 FREQUENCY PROGRAM
CHANNEL SHIP SHIP
NUMBER TRANSMIT RECEIVE
FREQ.
201
2003· : SIMPLEX
203 . :2ooe· SIMPLEX
209 ·. 203 f5 ; 2490 .·
;~~~ ·· ... , ~g~~· : ~:~~t~~ -
213 ·-2079;· 'SIMPLEX:
214 ... 2082.5 SIMPLEX:
215 2086 . SIMPLEX
217·
2~d~·/· . SIMPLEX
218 2096.5 SIMPLEX
219 2115 SIMPLEX
220 2118 SIMPLEX
221 2118
2514
USE
SHIP-TO-SHIP,. GREAT LAKES
'ALASKA>' . . . . ,
··•WOM
.Ft LAUDERDALE ,
BRITISH:coLUMBIA wx
SHIP~To~SHIP /,. '
.
SHIP~TO~SHIP'····
SHIP~To~SHIP ONLY .·..
SHIP-TO~'SHIP, MISSISSIPPI 'RIV£:Ri
• LIMITED COAST . .
·· ·· ...
. SHIP·TO~SHIP ONLY-COMMERCIAL FISH
SHIP-TO-SHIP
SHIP TO LIMITED COAST STATION
ALASKA
ALASKA
WOM FT. LAUDERDALE
WLC-ROGERS CITY
WFU-P, HURON
WBL-BUFFALO
7 -

I

s( 222 FREQUENCY PROGRAM
CHANNEL SHIP SHIP USE
NUMBER TRANSMIT
RECEIVE
FREQ.
223
224
228
230
00
236
238
239
240
242
245
248
249
250
251
252
254
255
256
257
258
259
261
262
263
266
267
268
269
273 .
275
277
280
282
301
303
304
305
306
451
2131
2134
2142
2158
2182
2203
2206
2237
2240
2366
2390
2406
2419
2422
2427
2430
2430
2447
2450
2458
2479
2482
2506
2509
2512
2535
2538
. 2563
·. 2566
2616
2638.
··. 2670
2738
2830
3023
3201
3258
3261
3449
4125
2309
2312
SIMPLEX
2550
SIMPLEX
SIMPLEX
.2582
2397
·2400
2450
2566
2506
KODIAK
COLD
BAY, CORDOVA, SITKA
KQP, GALVESTON
CA INTERSHIP
WFA, TAMPA BAY
WLC, ROGERS CITY
WBL, BUFFALO PJC, CURACAO
.DISTRESS CALLING
SHIP-TO-SHIP GULF. OF MEXICO,
WLC; ·.ROGERS .·CITY
_HALIFAX . .· ....
.ALASKA KETCHIKAN
ALASKA JUNEAU,. NOME .
WOO
NEW JERSEY ..
WOM. Ft 'LAUDERDALE
WOM
FT. LAUDERDALE.
KMI OAKLAND '
SIMPLEX ALASKA
SIMPLEX ALASKA
SIMPLEX ALASKA
2572 WLO MOBILE
SIMPLEX ALASKA
SIMPLEX ALASKA
SIMPLEX ALASKA
2506
KGN, DELCAMBRE
SIMPLEX ALASKA
SIMPLEX ALASKA
SIM~LEX ·ALASKA '
SIMPLEX'',
.. ALASKA
SIMPLEX' > ALASKA·
SIMPLEX<.
·· •·• .. ALASKA
SIMPLEX ... ·ALASKA
SIMPLEX. '.ALASKA
SIMPLEX ALASKA
SIMPLEX. . · .•. ALASKA
. SIMPLEX , SHIP~TO-SHIP
··SIMPLEX .· .. '. . . USCG WORKING.••
SIMPLEX SHIP-TO-SHIP
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX
8
ALL EXCEPT GREAT LAKES AND GULF
SHIP-TO-SHIP, GULF ONLY
AERONAUTICAL ENROUTE
ALASKA POINT-TO-POINT
ALASKA
ALASKA
ALASKA AERO
4A LTD COAST/INTERSHIP
( SEA 222 FREQUENCY PROGi
JI
CHANNEL SHIP
SHIP
USE
NUMBER TRANSMIT RECEIVE
FREQ.
452 4143.6 ' SIMPLEX
48 LTD COAST/INTERSHIP
. 453·· 4419.4 SIMPLEX ·4C LTD COAST/INTERSHIP
454 4366.7 SIMPLEX ALASKA
. 455 ' 4369.8 SIMPLEX
ALASKA·
458 4397.7
SIMPLEX.
ALASKA
.•
459. 4403.9 SIMPLEX ALASKA
461 '
4422~5
SIMPLEX ALASKA
462 ' 4425.6 ·. SIMPLEX ··ALASKA
464 5472 SIMPLEX. ALASKA
·.AERO
465 5490 SIMPLEX ALASKA AERO
501
5164.5 SIMPLEX ALASKA PUBLIC FIXED
502 5167.5 SIMPLEX ALASKA EMERGENCY/CALLING
503
5680'
SIMPLEX AERO SEARCH/RESCUE
651 6218.6 SIMPLEX 6A
LTD COAST/INTERSHIP
652 6221.6 SIMPLEX
68 LTD COAST/INTERSHIP
653 6521.9 SIMPLEX
6C LTD COAST/INTERSHIP
851
8291.1
SIMPLEX
BA LTD COAST/INTERSHIP
852
8294.2 SIMPLEX
8B LTD COAST/INTERSHIP
1251
12429.2 SIMPLEX 12A
LTD COAST/INTERSHIP
1252 12432.3 SIMPLEX 12B
LTD COAST/INTERSHIP
1253 12435.4 S'IMPLEX 12C.
LTD COAST/INTERSHIP
. 1651 . . 16587.1 '.SIMPLEX 16A
LTD COAST/INTERSHIP
1652 ·.: 16590.2: SIMPLEX. 168
LTD COAST/INTERSHIP
. 1653 16593.3 . ,SIMPLEX 16C ·LTD COAST/INTERSHIP
2251
221-24 > SIMPLEX •22A
LTD COAST/INTERSHIP ·
2252 . 22127.1 SIMPLEX
228 LTD. COAST/INTERSHIP
2253 22130.2 SIMPLEX · 22C
LTD COAST/INTERSHIP
'2254.
22130.3 SIMPLEX 22D
LTD COAST/INTERSHIP .
·'2255 22136.4 . SIMPLEX 22E
LTD COAST/INTERSHIP
9
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I

s 222 FREQUENCY PROGRAM
ITU CHANNELS
4 MHZ BAND
SHIP SHIP
STATION CHANNEL TRANSMIT RECEIVE
KMI
401 4063.0 4357.4
402·
4066.1 . "4360.5
WOM
403 4069.2.
.· 4363.6·
404 4072.3• '4366.7 :
. WLO 405 4075.4 ! A369.8
406 4078.5 . .· 4372.9
407 4081.6
4376.0
408 4084.7 ; ,4379.J<
.•
. 409
. 4087.8
.·.;·!~~~:~· .
woo 410 4090.9
woo 411 4094.0 4388.4
WOM 412 4097.1 4391.5
413 4100.2 4394.6
WLO 41.4 4103.3 4397.7
415 4106.4 4400.8
WOO, KMI 416 4109.5 4403.9
WOM,KMI 417 4112.6 4407.0
418 4115.7 4410.1
WLO 419 4118.8 4413.2
420 4121.9 4416.3
421 4125.0 4419.4
woo .;422
4128.l
.. ·'• 4422.5
WOM
423.
. 4131.2
'.. 4425.6:;
COASTGUARD 424 A134.3 . .·
.· 4428'7.;·.
425 4137.4 . :4431.8·
•.
426 4140.5 ·.4434.9 '
451 4125.0 SIMPLEX
452 4143.6 SIMPLEX
453 4419.4 SIMPLEX
6 MHZ BAND
SHIP SHIP
COAST GUARD CHANNEL TRANSMIT RECEIVE
601 6200.0 6506.4
602 6203.1 6509.5
603 6206.2 6512.6
604 6209.3 6515.7
605 6212.4 6518.8
606 6215.5 6521.9
651
6218.6 SIMPLEX
652 6221.6 SIMPLEX
653 6521.9 SIMPLEX
10
1
l
I
I·
.,
c.
\
SEA 222 FREQUENCY PROG( .VI
ITU CHANNELS
STATION
WOM
woo
COAST GUARD
KMI.
8 MHZ BAND
CHANNEL
801
··802
: 803
804 .
··•. 805
:.806
. 807
808
~809
810'~
811
812
813
814
815
816
817
818
819
820
821
. 822.
<::823
824
. 825
826
827, .
.828',<
829.
. 830
831
851
852
SHIP
TRANSMIT
. 8195.0
8198.1 ·
8201.2_·,
8204.3.
.• 8207.4 .
8210.5
8213:6
8216.7 ..
8219.8.
8222.9
8226.0
8229.1
8232.2
8235.3
8238.4
8241.5
8244.6
8247.7
8250.8
8253.9
8257.0
8260.1 .
8263.2
. 8266.3
/ . 8269.4 .
.•·. ·-~~~~:~::.
.:8278:7' 1
8281:8
. 8284.9
8288.0
8291.1
8294.2
HIGH SEAS STATIONS
KMI POINT REYES, CA
WLO MOBILE, AL
WOM FT. LAUDERDALE, FL
WOO MANAHAWKIN, NJ
11
SHIP
RECEIVE
8718.9
8722.0
. 8725.1
··. 8728.2
. 8731.3 .
; 8734.4 \ .
8737.5
. 8740.6'.
8743,7 : .
8746.8
··.~·.•
8749.9
8753.0
8756.1
8759.2
8762.3
8765.4
8768.5
8771.6
8774.7
8777.8
8780.9
''.'8784.0, .
.·::::. 8787:1 :...
~··8790.2>
. :,8793.3
8796.4.
8799.5 ·
..•..
·'8802.6
8805.7
. 8808.8
8811.9
SIMPLEX
SIMPLEX
-

I

s(
STATION
KMI
KMI>
WOO,KMI
1
.WOM.
'WOM
woo·
woo
WLO
WOM
222 FREQUENCY PROGRAM
ITU CHANNELS
12 MHZ BAND
SHIP SHIP
CHANNEL TRANSMIT RECEIVE
1201 12330.0 '13100.8
·1202 '
,, 12333.1 ' 13103.9'
'1203
12336.2 .13107.0
,• 1204 ' .. 12339.3 13110.1
1205 12342.4 ' '13113.2
1206 ' 12345.5
13116.3\
1207,··'·
12348.6' 1.31i9:4
•.
· 1208, 12351.7 >13122.5
J209
12354.8 •13125.6
<.•1210 12357.9 13128.7 \ '
1211 12361.0 13131.8
1212 12364.1 13134.9
1213 12367.2 13138.0
1214 12370.3 13141.1
1215 12373.4 13144.2
1216 12376.5 13147.3
1217 12379.6 13150.4
1218 12382.7 13153.5
1219 12385.8 13156.6
1220 12388.9 13159.7
221 12392.0 •
.. 13162.8.:
1222 . 12395.1 13165.9 '
1223 12398.2 13169.0·
1224 12401.3 13172.1
.: 1225
.. 12404.4 13175.2
··. 1226 12407.5 13178.3.
1227· 12410.6
·i3181:4 •..
.J228
12413.T
13184.5.
'/,1229
12416.8 13187.6
~ 1230 •.· 12419.9 . 13190;7
1231 12423.0 13193.8
1232 12426.1 13196.9
1251 12429.2 SIMPLEX
1252 12432.3 SIMPLEX
1253 12435.4 SIMPLEX
HIGH SEAS STATIONS
KMI POINT REYES, CA
WLO MOBILE, AL
WOM FT. LAUDERDALE, FL
WOO MANAHAWKIN, NJ
12
(
t
.. ,
SEA 222 FREQUENCY PROGl
ITU CHANNELS
STATION
· w6~>
0
· WOM
WOM
WOM
woo
16 MHZ BAND
CHANNEL
1601
1602
. 1603
1604
1605
3
1606
1607,
. 1608
'.
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
SHIP
TRANSMIT
.16460.0
16463;1 .
'16466.2.
16469.3
16472.4'
16415.5 '.
1El478.6\
16481.7 '
.16484.8'.·:;
16487.9
16491.0
16494.1
16497.2
16500.3
16503.4
16506.5
16509.6
16512.7
16515.8
16518.9
JI
SHIP
RECEIVE
. 17232.9''
17236.o<'·· ·
17239:1.'2
·: /,
17242.2 ":/;>
;17245.3.
r; ;~ i~;~:~ :.,.··: ..
.-~·i~~i:~~:·~.·
';'.17260,8 :.~'.: ..
17263.9
17267.0
17270.1
17273.2
17276.3
17279.4
17282.5
17285.6
17288.7
17291.8
..... 1621
1622
.1623
16522.0-' ' ...
. 16525:1 '.··.
16528.2 :'
;. ~;,,·; .. -.~~~~::~
KMI <1624'
COAST.GUARD' · _j625
woo ... < 1626
woo
1627.:
1628
1629
1630 .
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
,1651
1652
1653
16531.3 <
16534~4 .
.•. 16537;5
16540.6'' •.
16543:7>
: 16546.8 .
.16549.9
13
16553.0
16556.1
16559.2
16562.3
16565.4
16568.5
16571.6
16574.7
16577.8
16580.9
16584.0
17325.9
17329.0
17332.1
17335.2
17338.3
17341.4
17344.5
17347.6
17350.7
17353.8
1'7356.9' •.
·:··\·:~:-~-~
SIMPLEX•''.
SIMPLEX)'.;~
SIMPLEX';\
S'-lmm

• !

s(
STATION
woo
woo
woo
KMI
WOM
WOM
WOM
KMI
KMi
WOO, KMI
WLO
222 FREQUENCY PROGRAM
ITU CHANNELS
22 MHZ BAND
CHANNEL
2201 ··
2202
2203.
'2204
2205 .
<2206
2207
2208
"2209 ..
2210 ...
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
. 2221
·2222'
. 2223 ..
2224, ...
2225\
.2226
·.···.~2227
222~
.2229
2230..
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
.::2251
.. '2252 .
'\2253
'L '2254... ;.
2255 ..
14
SHIP
TRANSMIT SHIP
RECEIVE
22000,0 . 22596,0
22003.1 . .22599.1
~~gg~}· . ~~~g~l
. 22012.4 22608.4
·. ~~g~ ~:~ ··. .. ~~~U:~ .
22021.7 .· .,:22617.V
;>22024.8 f
:;~,i~22620.a:,
22027.9 ·. .. . .• c.22623.9.
22031.0 22627.0
22034.1 22630.1
22037.2 22633.2
22040.3 22636.3
22043.4 22639.4
22046.5 22642.5
22049.6 22645.6
22052.7 22648.7
22055.8 22651.8
22058.9 22654.9
.' 22062.0 .•• .• ' ' •• .· .. ·. 22658,0
22065.1 l
.• .; ; :3,2266t1 ( .
. 22068.2 . .
.... ~: /22664.2, '·:
,··~~g~~:~ .. ~•:··,; .. ~·.•;?! E •. ~Jc~·Y:~~i~~:~ •. ~'.;~·
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22096.1 22692.1
22099.2 22695.2
22102.3 22698.3
22105.4 22701.4
22108.5 22704.5
22111.6 22707.6
22114.7 22710.7
22117
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22120.9 22716.9
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"SCRATCH PAD" MEMOR\
CHANNEL/FREQUENCY LOG
Use this handy log to keep a record of the frequencies you store in "scratch
pad" memory.
Location Ship TX Ship RX Use
EO
2182.0
2182.0 Emergency Channel
E1
E2
E3
E4
ES
E6
E7
EB
E9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
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1. GENERAL INFORMATION
1.1 DESCRIPTION
1.2
1.2.1
1.2.2 .
1.2.3
1.2.4
1.2.5
1.2.6
1.3
Tne SEA 222 is a compact, all solid-state, 150 Watt PEP, HF SSB
transceiver for the marine and HF radio service.
The SEA 222 covers the 2 to 23 MHz frequency range with channel
restrictions which are determined only by the rules regardiny the
appropriate radio
service. That is, the SEA 222 is equipped with a
"mask" which limits the transmitter operation to legally assiyned
channe1s
for the desired service. The frequency "mask" contains ALL
normally assigned (ITU) Marine channels and has space available for any
additional channels which might be desired.
The SEA 222 is fully synthesized with 100 Hz resolution and the
channel frequencies are controlled by a precision crystal housed in a
temperature
stabilized holder. The transceiver is designed to operate
from a 13.6 Volt, negative ground power system and is controlled by a
front panel mounted 4x4 keypad. The control computer operating system
makes use of an "operator friendly" controller program in conjunction
with the
eight character alphanumeric VF {vacuum fluorescent) display.
EQUIPMENT FURNISHED
SEA 222 Radiotelephone
Microphone and Microphone Clip
Mounting Bracket
Power Connector
Instruction/Maintenance
Manual
frequency Allocation Booklet
MECHANICAL INFORMATION
Size 13.9
11
l~ x 4.6"H x 12.5"0
Weight
13 lbs. (5.9 Kilograms)
Mounting Positions
Any Orientation
1
!

1.4
1.4.1
1.4.2
ELECTRICAL SPECIFICATIONS
GENERAL
Type Acceptance
Frequency
Range
Circuitry
Front Panel Controls
Channel Capacity
Operating Temperature
Range
Frequency Stability
Operating Modes
Primary Voltage
Current Drain:
Receive Standby
Receive, Full
Audio
Transmit, Average Voice
Transmit, Two Tone
RF Impedance
TRANSMIITER
Power Output
Intermodulation
Spurious Emissions
Carrier Suppression
Undesired Sideband
Suppression
Audio Response
FCC Parts 81, 83, 87, 90
2-23 MHZ
Double Conversion, 45 MHz 1st I.F.,
6.4 MHz 2nd I.F.
Volume ON/OFF, 4x4 Keypad
290 channels in factory progranmed memory,
100 channels in field progranrned memory
-30 degrees to + 60 degrees C
15 Hz
A3A, A3J, 2182.0 KHz A3H in EO
13.6 DC %15%, negative ground
2A
2.SA
11.~
17A
50 Ohms
A3A, A3J, 150 Watts PEP
-32 dB below PEP
-65 dB be 1 ow PEP
-46 dB below PEP
-50 dR below PEP @ 1000 Hz
300 Hz to 2400 Hz ± 3 dB
2
I

1.4.3 RECEIVER
Sensitivity: SSS
Selectivity: SSS
AGC
Intermodulation
Spurious Responses
Audio Power
2. OPERATION
2.1 WARM-UP CAUTION
1 microvolt-for 12 dB SINAD
300 Hz to 2400 Hz ± 6 dB
Less than 10 dB audio level change from
10 uV to 100 mV, fast attack slow release
At least -80 dB
At ·1east -60 dB
4 Watts at less that 10% distortion
Do not attempt to transmit until the radiotelephone is warmed up
for at least 3 minutes. Transmitting before the 3 minute warm-up
period has elapsed can cause a violation of FCC regulations.
2.2 FCC REQUIREMENTS
"How to Correctly Operate Your Radiotelephone Set" is a booklet
available from the Radio Technical Commission for Marine Service
( RTCM), P.O. Box 19087, Washington, D.C. 20036 and is highly recom-
mended reading material.
2.3 FRONT PANEL CONTROLS AND INDICATORS
Figure 2.3 illustrates the front panel of the SEA 222. The function
of these controls is as follows:
Volume ON/OFF : This control adjusts the loudness of the receiver
and turns the set on and off. To turn the set ON, turn the Volume
ON/OFF control knob CLOCKWISE until a click is heard. Turning the
control knob further clockwise will increase the receiver volume
level.
TRANS Inaicator: This LEIJ indicates (when lit) that the transmitter
is activated. Under zero modulation conditions, the LED is dim,
brighteniny under modulation to indicate proper voice output.
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