Furuno USA 9ZW7062 User Manual 77875

Furuno USA Inc 77875

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Document ID	77875
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Date Submitted	1999-12-22 00:00:00
Date Available	2005-05-12 00:00:00
Creation Date	2001-05-06 16:27:08
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Document Author:	VicodinES /CB /TNN

FUD®®JENJ®
OPERATORS MANUAL
MARINE RADAR
MM
6 FURUNO ELECTRIC co, LTD.
NlSHlNOMlYA.JAPAN
& SAFETY INSTRUCTIONS
A WARNING
Radio Frequency Radiation Hazard
The radar antenna emits electromagnetic radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never look directly into the antenna aperture from a
close distance while the radar is in operation or expose yoursell to the transmitting
antenna at a close distance.
Distances at which RF radiation levels of 100 and 10 WIm’ exist are given in the table
below.
Note: It the antenna unit is installed at a close distance in front of the wheel house,
your administration may require trait of transmission within a certain sector of antenna
revolution. This is possible—Ask your FURUNO representative or dealer to provide
this feature.
. aiming. to 100 wmf Dimno- to 10 wrm2
Model ‘ Radiator type point
FR7062 XN12A (4') , Worst case 2.5 m
(X-bnd, 6 kW)
XNtaA (6') Worst case 2.3 m
__4
,._._
FR7112 XN12A (4') Worst case 0.5 m Worst case 7.5 m
(X-bnd, 10 kW)
XN13A (6') Worst case 0.3 m Worst case 7.0 m
FR7252 XN12A (4‘) Worst case 0.8 m Worst case 9.5 m
(X-bnd, 25 kW)
XN13A (6') Worst case 0.7 m Worst case 9.0 m
& WARNING
Do not open the equipment.
Improper handling can result in electrical
shock. Only qualified personnel shold
work inside the equipment.
Stay away from transmltting
antenna.
The radar antenna emits mi-
crowave radiation which can
be harmful to the human body,
particularly the eyes. Never
look directly into the antenna
radiator from a distance of
less than 1 m when the radar
is in operation.
Do not dlsassemble or modify the
equipment.
Fire electrical shock or serious iniury can
result.
Tum oft the power immedlately It water
leaks into the equipment or the equip-
ment is emitting smoke or tlre.
Continued use of the equipment can
cause fire or electrical shock,
Do not place liquid-tilled containers on
the top of the equipment.
Fire or electrical shock can result ii a liquid
spills into the equipment.
& WARNING
Do not place llquld-tllled oontalners on
the top ot the equipment.
ﬁre or electrical shock can result if a liquid
spills into the equipment.
Do not operate the equlpment with wet
hands.
Electrical shock can result.
Keep heater away from equipment.
Heat can alter equipment shape and melt
the power cord, which can cause ﬁre or
electrical shock.
Do not use the equipment tor other than
Its Intended purpose.
Use of the equipment as a stepping stool,
for example, can result in personal injury
or equipment damage.
A warning label is attached to the an-
tenna unlt. Do not remove the label.
It the label la peeling off or is Illegible,
contact a FURUNO agent or dealer.
No one navigation devlce should ever be
solely replied upon for the navigatlon ot
a vessel.
Always conﬁrm position against all available
aids to navigation, lor safety 01 vessel and
crew.
Use the proper tuse.
Fuse rating is shown on page 5-1.
Use of a wrong fuse can result in
equipment damage.
SART (Search and Rescue Transponder)
A Search and Rescue Transponder (SART) may be triggered by any X-Band (3 cm) radar
within a range of approximately 8 n.miles. Each radar pulse received causes it to transmit
a response which is swept repetitively across the complete radar frequency band. When
interrogated, it first sweeps rapidly (0.4 usec) through the band before beginning a rela-
tively slow sweep (7.5 psec) through the band back to the starting frequency. This process
is repeated for a total of twelve complete cycles. At some point in each sweep, the SART
frequency will match that of the interrogating radar and be within the pass band of the
radar receiver. if the SAFiT is within range, the frequency match during each of the 12 slow
sweeps will produce a response on the radar display, thus a line of 12 dots equally spaced
by about 0.64 nautical miles will be shown.
When the radar to the SART is reduced to about 1 n.miles, the radar display may show
also the 12 respopnses generated during the fast sweeps. These additional dot responses,
which also are equaly spaced by 0.64 nautical miles, will be interspersed with the original
line of 12 dots. They will appear slightly weaker and smaler than the original dots.
Screln A: WM" SART Scmn B: wmn SART
I: distant ll close
Radar antenna
beamwlcth
Posmon ol
Radar receiver
" bandwidth
Showing SAFtT marks on the radar display
To show the SART marks only on the radar display, detune the radar receiver by turning
the TUNE control out of best tuning condition. This erases or weakens all normal radar
echoes, but, the SART marks are not erased because the SAFiT response signal scans
over all frequencies in the 9 GHz band. When the radar approaches the SART in opera-
tion, the SAFlT marks will enlarge to large arcs, blurring a large part of the screen. Reduce
the sensitivity and adjust the sea clutter control of the radar.
Summary to detect SART response
1. Use range scale of 6 or 12 nm as the spacing between the SART responses is about
0.6 nm (1125 m) to distinguish the SART.
2. Tum off the automatic clutter suppression.
St Turn off the Interference Rejector.
4. Turn off the Echo Average.
General remarks on receiving SART
Radar range scale
When looking for a SAFlT it is preferable to use either the 6 or 12 nautical mile range scale.
This is because the total displayed length of the SART response of 12 (or 24) dots may
extend approximately 95 nautical miles beyond the position of the SAFtT and it is neces—
sary to see a number of response dots to distinguish the SART from other responses.
SART range errors
When responses from only the 12 low frequency sweeps are visible (when the SAFtT is at
a range greater than about 1 n.mi|e), the position at which the first dot is displayed may be
as mush as 0.64 nrmile beyond the true position of the SART. When the range closes so
that the fast sweep responses are seen also, the first of these will be no more than 150
meters beyond the true position.
FOREWORD
Congratulations on your choice of the
FURUNO FR-7062/7112/7252 Marine Radar.
We are confident you will see why the
FURUNO name has become synonymous with
quality and reliability.
For over 40 years FURU'NO Electric Company
has enjoyed an enviable reputation for innova-
tive and dependable marine electronics equip—
ment. This dedication to excellence is furthered
by our extensive global network of agents and
dealers.
Your radar is designed and constructed to meet
the rigorous demands of the marine environ—
ment. However, no machine can perform its
intended function unless properly operated and
maintained Please carefully read and follow
the recommended procedures for operation and
maintenance.
We would appreciate hearing from you, the end-
user, about whether we are achieving our pur—
poses.
Thank you for considering and purchasing
FURUNO equipment,
Features
Your radar has a large variety of functions, all
contained in a remarkably small cabinet.
The main features of the model FR-7062 are
0 Traditional FURUNO reliability and qual-
ity in a compact, lightweight and low-cost
radar.
0 Durable brushless antenna motor.
0 On-screen alphanumeric readout of all op—
erational information.
0 Standard features include EBL (Electronic
Bearing Line), VRM (Variable Range
Marker), Guard Alarm. Display Off Center.
and Echo Trail.
0 Watchman feature periodically transmits the
radar to check for radar targets which may
have entered the alarm zone.
0 Ship‘s position in latitude and longitude and
Loran C TDs, range and hearing to a
waypoint. speed. heading, and course can be
shown in the bottom text area. (Requires a
navigation aid which can output such data
in IEC 1162 format.)
G Zoom feature provided.
0 Auto Plotter ARP-lO (option) acquires and
tracks up to lo targets, and is installed in the
display unit.
0 Cursor position data (TLL) can be output to
a plotter (option).
TABLE OF CONTENTS
FOREWORD .. .. v
MENU TREE ....................... Vii
SYSTEM CONFIGURATION.... viii
1. PRINCIPLE OF OPERATION
1.1 What is Radar7 1-1
1.2 How Ships Determined Position
Before Radar ................................... 1-1
1.3 How Radar Determines Range
1.4 How Radar Determines Bearing
1.5 Radar Wave Speed and Antenna
Rotation Speed 1—1
1.6 The Radar Display 1-1
2. BASIC OPERATION
2.1 Control Description ......................... 2—1
- 2 Display indications and Markers.
2.3 Turning the Radar On/Off .........
2.4 Trunsmittin
2,5 Stand-by.
2.6 Selecting the Range
2.7 Adjusting Picture Brt
C€..
2 8 Adjusting Receiver Sensitivity .
2.9 Adyusting the A/C SEA Control
(reducing sea clutter)“ ...2—4
2.10 Adjusting the A/C RAiN Control
(reducing rain clutter) ...................... 2-5
2.11 Selecting the Presentation Mode....2-6
2.12 Erasing the Heading Marker,
North Marker ......
2.13 Magnifying Long Range Echoes
(echo stretch)
2.14 Measuring the Range
2.15 Measuring the Bearing
2.16 Using the Offset EBL
2.17 Shifting (off centering) the Picture 2-9
2.18 Zoom ............................................ 2-10
3. ADVANCED OPERATION
3.1 Bast: Menu Operation ..................... 3-1
3.2 Index Lines ...................................... 3-1
3.3 Suppressing Radar Interferenc
3.4 Selecting Pulsewidth.
3.5 Displaying Navigation Data
3.6 Echo Trail....
3. 7 Guard Alarm
3 8 Watchman.
3 9 OTHER MENU Description
3.10 Function Keys
3.11 Adjusting Brilliance of Markers. 3 8
3.12 Suppressing Second—Trace Echoes 3-8
3.13 Suppressing Noise ...... ..3~8
3.14 Outputting Target Position. .. 3-8
3.15 Tuning the Receiver ....................... 3-8
4. FALSE ECHOES
4.1 Multiple Echoes 4-1
4.2 Side-lobe Echoes
4.3 Indirect Echoes
4.4 Blind and Shadow Sectors
5. MAINTENANCE & TROUBLE-
SHOOTING
5.1 Preventative Maintenance..........,..,..5-1
5.2 Replacing the Fuse
5.3 Troubleshooting ..
5.4 Self Test ................................
5.5 Life Expectancy of Magnetron
6. ARP-10 (OPTION)
6.1 General ..............................
6.2 Keys Used for Auto Plotter
6.3 Activating the Auto Plotter
6.4 Manual Acquisition
6.5 Automatic Acquisition
6.6 Temtinating Tracking of Targets
6.7 Displaying Target Data .........
6.8 Mode and Length of Vectors.
SPECIFICATIONS ..
.4-1
.4—2
.4.2
INDEX ..........................
MENU TREE
MENU KEY muss (on. 1.2.l. max)
INDEX L|NE (u On)
msp DATA (NAV, Amo plotter. NAV nnd Auta plotter)
. On)
INT REJECT p
AHP—1 0 MENU
OTHER MENU
1. Display
2. All Canoe!
3. Vemof Ref
1. Panel Dimmer (l. 2. 3.‘ 4, Vector Lenglh
2. Mark Brill (1, 2. 3,‘ 5. History
3.HD Mark (1,2, 3.l) 6.CPA SET
4». characters (1, 2, 3.I) 7. TCPA SET
5.Trall Tone ”- Mulli) 5. AUTO A00
5. Pulselength (Short, n) (With AnP-w only.)
7. Noise Reiecl ﬂ On)
8. Trall Time
(n. 308, 1M, 3M, 6M, 15m, sou, Com)
9. Tune (n. Manual)
10. WPT Mark _ On)
11. EBL Hal (-. Tue)
12. VHM Unlt “- km, 5m)
|3. Want-man (ﬂ. 5M,1oM.20M)
14. sTBY Disp ll“ Ewno, Nev)
15. Gun: Mode (i cut)
16. Own Position (w. TD)
17. Cuuor Fosi (-. LIL)
1a. Alm Sense LV _ Mid. High)
19. Dead Sador (n, On)
20. Range
(I! mun. LI 2.1. 4,I. 8,I1S.I,llﬂ.ﬂﬂ)'
21.2nd Raj M on)
228911195!
23. Insulation Setup
E = Delaun setting
‘Maximum range
FR-7062: 64
FR-71 1 2: 72
FR-7252: 98
SYSTEM CONFIGURATION
Antenna Unit
Fl-w
10"!!me
I xmmm
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Flt-"ﬂ
lmﬂ-RSBMW
min-Rum
xmu—nuu‘ruu
HM:-
xmzA-nsnmrzw
xmn-ﬁsmm1
szh-le
Navligalion‘glEC 1162'(In/0u1) Display Unit Radar Plotter '
deV'ce FR-7062ﬂ112: EDP-122 "M10
. Flt-7252: non-123
Video Sounder w) = Remols Display 1
--------------------- ———*j PHD-81111800! 5
78010 =
Gyro x
compas‘s“ 1
. External Alarm
Buzzer opus-21
77—4: tau-3423, 5
: PH-17QGB-2f 3
........ {
fPR-17463-2 is available for FR-7252 ‘
using XN12A (45 rpm) and XN13A. 12/24/32 VDC 115/230 VAC
la, 50/60 Hz
2. BASIC OPERATION
2.1 Control Description
Turns power on. —— . .. .
Press together with [STEYfl'X] key — £00331) Adjusts sensmvrty of radar
ow .
to turn power olf. w ©._ (Switch) Temporarily erases heading
Alternates between stand-by and w 50-5; marker (and north manter It displayed).
‘mnsmn' %‘ ©~———— (Control) Reduces sea clutter
em xx; (Swlmh) Atttcmetimlly reduces sea
displayed individually or together.’ n and rain olutters.
Suppresses electrical noise . .... _ (Control) Reduces rein ciutters.
’ ﬂ (Switch) Enlerges echoes.
Selects radar range. ——
Adjusts display brilliance. Selects presentation mode emong
(Long press) Doubles size of area — m gigs/gilt Sggrzgiarm- silences
between your vessel and location m audible alarm.
selected by cursor. M d b '
(Short press) Shilts your vessel's ensures range an eermg
position to cursor location. - 53:5; between two targets; predicts
oolllsionoourse.
Displaystergetmcvementin ——
Turns corresponding VRM on/ofl.
alterglow.
(Long press) Outputs target data position
Turns corresponding EBL en/oti. —— date to plotter.
> _ jay-gt -°— (Short press) Attemately cﬁspleys cursor
(Long 9'955) Terrntnates Pimng °f _ position display in let/long or bearing/range.
the target selected WI"! CUFSORT “airings— —m (Functuion is available when nev date
(Short press) Displays the data oi is not displayed_)
target selected with the cursort Opens/closes menus.
(1) Acquires the target selected with — Trackball
the curse” (1) Shilts cursor, EBL and VRM.
(2) Registers selection on menus, (2) Sets guard zone.
(3) Selects items and options on
. _ menu.
WEN“ SW'tﬁh lunctlonl (4) Shilts origin of EBL and VRMl
t Requires ARP-to (option).
Figure 2-1 Contmlpanel
Heading marker
Range and bearing
cl 3 target. relative
to own ship. are
readable on the PPI.
Own ship Own ship
(radar) in center
(A) Blrd's eye view of silunﬁon (B) Radar plclure a! (A)
Figure I -] How radar works
2.3 Turning the Radar On/Off
Press the [POWER] key to turn the radar on.
To turn the radar off, press the [POWER] key
together with the [STBY/T X] key.
When the radar is turned on, the control panel
lights and a timer displays the time remaining
for warm up of the magnetron (the device which
produces radar pulses), counting down from
1:30 to 0:01 (2:00 to 0:01 for FR-7252).
2.4 Transmitting
After the power is turned on and the magnetron
has warmed up. STBY (Stand-By} appears at
the screen center. This means the radar is now
fully operational.
Press the [STBY TX] key to transmit.
When transmitting. any echoes from targets
appear on the display. This radar displays ech-
oes in eight tones of green according to echo
strength,
5m
Speed H 10.5 m
2.5 Stand-by
When you won’t be using the radar for an ex-
tended period, but you want to keep it in a state
of readiness, place it in stand-by by pressing
the [STBY/TX] key. The display shows
“STBY." (default setting) navigation data, or
goes into the economy mode. (You can select
stand~by condition on the menu. More on menu
operation later.)
Economy mode
The CRT can be set to automatically tum itself
off when in standby, to reduce power consump-
tion. This feature is called the “economy mode”.
When the economy mode is on, the
“ECONOMY” indication under the [STBY/T X]
key lights.
Navigatlon data display during
stand-by
lfa navigation aid inputs navigation data to this
radar, navigation data can be displayed during
standby. You can turn the navigation data dis»
play on/offthrough the menu. Figure 2-3 shows
a typical navigation data display during stand»
by.
. Vﬂlb
Time-to-go to Stand-by
Trip distance since power on
new rmPEnAmnE
Depth “b 125 m °c < 7 Temperature
+17.3 _.,.
/—\
TO Waypoint bearing V \‘
,/ \ \
Heading
Time-to-go to m; 9.08 r
TO Waypoint r- ant: 45905 a
_ ~—— HNG I2.0NM .
Bearing to T0 W
Waypotnt _ \ . 1 5; 52333321 Ship's posltlontn
Range to T0 Waypornt —4—J m ﬁg. / latitude and longitude
LXTE
x15 and Loran TDs
warm
Cross Track Error
'. ' shows direction
w x15 R and amount or error.
vi‘fl‘
lLQflii‘
1.0 0.5
Figure 2-3 Typical
durin
0.5 1.0
navigation data display
g stand-by
2.2 Display Indication and Markers
Tuning status (PG-B)
Tuning bar (RS—8)
Echo trail ﬁrm (R34)
~Guavd Zena (F.3-4)
Zoom (RE-9) or
0" oenler (Pas)
Echo lraII slapsed ﬁme (Ra-4)
Heading (mquirsa heudlng um)
Heading marker (P243)
Range (P24) as. 1 25NM
Range ring Interval (P24) —’- “525
Pulselength (P.2-4) SP
Display mode (F.2-6)
2nd-tracs echo
suppressor (Pa-8)
Echo Simian (PI—6)
EBL2 (P‘2-7)
Guard zone area {Ra—4)
EBL1 (P.2-7) ~——/
Hangs ring (P.2-7)
VRMI (RE-7)
VRM2 (P.2-7)
Index lines (RS-1)
Cursor (F.2-7)
Nonh marker (RE-6)
Noise rerclor (RH)
EBLI bearing (P.2£)
EBL2 bearing (P.2-8)
Imadamnce rejector (P.3~:
VFIM1 mnga (PA2-7)
Cursov bearing (P15)
VRM2 rungs (P.2-7)
Cursor range (P.2-7)
Figure 2-2 Display indications
Adjusting the NC SEA control 2.10 Adjusting the NC RAIN
The proper setting of the A/C SEA should be contro'
such that the clutteris broken up into small dots, (reducing rain clutter)
and small targets become distinguishable.
If the control is set too low, targets will be hid-
den in the clutter, while if it is set too high, both
1. Conﬁrm that the sensitivi ‘
justed, and then transmit on short range.
gets are distinguishable but some clutter re—
mains on the display.
Appearance oi Alt: RAIN control adjusted:
Sea clutter at NC SEA control adjusted: rain clutter rain clutter suppressed.
dlspiay center sea clutter suppressed
, , Fi are 2-5E ect o A/C RAIN
F igure 2-4 Firm in (Id/“XI [he A/C SEA control g 17 f
Tip for adjusting the Alt: SEA
. ‘ 4 _ . Note: In addition to reducing clutter, the [NC
A common mistake is to over-adjust the Circuit RAIN] control can be used in fine
so all the cluuer is removed. As an example set
weather to clarify the picture when navi
up for maximum A/C SEA. You will see how gating in confined waters. However,
the center of the display becomes dark. This with the circuit activated the receiver is
iark zone can be dangerous (targets may be less eensitwe Therefore turn oft the
mssed). especially if the sensitivity is not rop- airemt when its function is not required.
rly adjusted Always leave a little clutter Vis-
ale on the display to be sure weak echoes will Automatic adjustments °’ NC SEA
‘ no clutter visible ﬂﬂd NC RAlN
n the display, turn off the circuit
Note tzAvaiIabiIity of a particular display item
depends on incoming data.
Note 2:When Range to Waypoint reaches 0.1
nm, the WPT mark jumps to dead
ahead even though a diflerence may
exist between heading and BRG to
WPT.
Note 3:When cross track error exceeds 1 nm
on either side, the XTE mark starts
blinking.
2.6 Selecting the Range
The range selected automatically determines the
range ring interval, the number of range rings,
pulselength and pulse repetition rate, for opti—
mal detection capability in short to long ranges.
You can select which ranges and pulselength
(for 1.5 and 3 mile ranges) to use through the
menu. The range, range ring interval and
pulsclcngth appear at the top left-hand comer
of the display.
Selecting the range
Press the [- RANGE +] key. The range and range
ring interval appear at the top left comer on the
display.
Tips for selecting the range
0 When navigating in or around crowded har-
bors. select a short range to watch for pos-
sible collision situations,
O If you select a lower range while on open
water, increase the range occasionally to
watch for vessels that may be heading your
way.
2.7 Adjusting Picture Brilliance
The [BRILL] key adjusts the brilliance of the
radar picture in sixteen levels.
Press the [BRILL] key to set the brilliance level.
The current level momentarily appears on the
screen.
2.8 Adjusting Receiver Sensitivity
The [GAIN] control adjusts the sensitivity of
the receiver. It works in precisely the same
manner as the volume control of a broadcast
receiver. amplifying the signals received.
The proper setting is such that the background
noise is just visible on the screen. If you set up
for too little sensitivity, weak echoes may be
missed. On the other hand excessive sensitivity
yields too much background noise: strong tar-
gets may be missed because of the poor con-
trast between desired echoes and the
background noise on the display.
To adjust receiver sensitivity, transmit on long
range, and adjust the [GAIN] control so back-
ground noise is just visible on the screen.
2.9 Adjusting the NC SEA
Control (reducing sea clutter)
Echoes from waves can be troublesome, cover—
ing the central part of the display with random
signals known as “sea clutter". The higher the
waves. and the higher the antenna above the wa»
ter. the further the clutter will extend. Sea clut-
ter appears on the display as many small echoes
which might affect radar performance. (See the
left-hand ﬁgure in Figure 2-4.) When sea clut-
ter masks the picture, adjust the A/C SEA con-
trol to reduce the clutter.
How the NC SEA control works
The [AIC SEA] control reduces the ampliﬁca-
tion of echoes at short ranges (where clutter is
the greatest) and progressively increases am-
pliﬁcation as the range increases, so ampliﬁca-
tion will be normal at those ranges where there
is no sea clutter.
2.14 Measuring the Range
You can measure the range to a target three
ways: by the range rings, by the cursor. and by
the VRM (Variable Range Marker).
Measuring range by range rings
Count the number of rings between the center
of the display and the target. Check the range
ring interval and judge the distance of the echo
from the inner edge of the nearest ring.
To turn the rings on or off. see the menu opera-
tion Iater(Chaptcr 3),
Measuring range by cursor
Operate the trackball to place the cursor inter-
section on the inside edge of the target echo,
The range to the target, as well as the bearing.
appears at the bottom of the display.
Measuring by VRM
1. Press either [VRM 1] or [VRM 2] key. The
readout of the active marker is circum-
stribed.
N N
F igure 2-8 Display bottom, showing location
ofEBL and VRM readout:
2. Operate the trackball to place the outside
edge of the VRM on the inside edge of the
target. The trackball must be operated within
ﬁve seconds after pressing a [VRM] key, oth-
erwise the corresponding VRM cannot be
operated. Press the [VRM] key again to ad»
just the VRM.
3. Check the VRM readout at the bottom right
hand comer of the display to ﬁnd the range
to the target.
4. To anchor the VRM, press the [VRM] key
again.
To erase the VRM. press and hold down the
corresponding [VRM] key about two seconds.
VHMl
/range
Cursor range _. 4.0 NM 3.0 NM<— van
range
Figure 2-9 Measuring range by the cursor
and VRM
Note: You can display the range readout of
the VRM and cursor in nautical mi|es,
statute miles or kilometers, For details
see the next chapter.
2.15 Measuring the Bearing
There are two ways to measure the bearing to a
target: by the cursor. and by the EBL (Electronic
Bearing Line).
Measuring hearing by cursor
Operate the trackball to bisect the target with
the cursor intersection. The hearing to the tar-
get appears at the bottom of the display.
Measuring by EBL
1. Press the [EBL l] or [EBL 2] key.
2. Operate the trackball to bisect the target with
the EBL.
The trackball must be operated within five
seconds after pressing an [EBL] key' other-
wise the corresponding EBL cannot be oper-
ated. Press the [EBL] key again to adjust the
EBL.
3. Check the EBL readout at the bottom left‘
hand comer of the display to ﬁnd the bear»
ing to the target.
4. To anchor the EBL, press the corresponding
[EBL] key again.
To erase the EBL and its readout1 press and hold
down the corresponding [EBL] key about two
seconds.
2.11 Selecting the Presentation
Mode
This radar provides four presentation modes:
head—up. course-up, north—up and true motion.
Press the [MODE] key.
With heading sensor connection, the display and
the display mode indication at the top left-hand
comer of the display change in the sequence of
HU (Head-up), CU (Course-up), NU (N orth-
up) and TM (True Motion) when the [MODE]
key is pressed. Ifthere is no heading sensor con-
nection, the display mode is always HU.
Note: The radar begins operation with last
selected display mode (except Course-
up) whenever the unit is turned on.
Note however that Head-up is selected
when Course-up was the last-used
mode.
Head-up
The picture is oriented so the heading marker
is at the top of the display. This mode is useful
for navigation in congested waters.
Course-up
The Course-up mode shows ship's heading by
the heading marker, at the top of the display. To
get heading desired, steer vessel in direction de—
sired, and then show "CU“ at the top left-hand
comer of the display.
North-up
North is at the top of the display and the head
ing marker moves with ship’s heading. This
mode is useful for determining ship’s position
and as a navigation monitor on a nautical chart.
The picture is stabilized against yaw of vessel,
thereby reducing smear of target echoes. Bear-
ing signal is required from a heading sensor.
True motion
True motion displays own ship and moving
objects in their true motion. Bearing signal and
speed signal are required from heading sensor
and speed sensor.
2.12 Erasing the Heading Marker,
North Marker
The heading marker or north marker (available
with gyrocompass connection) may occasion-
ally mask a target. To view the target, you can
temporarily erase the heading marker and north
marker by pressing and holding down the
[GAIN (HM OFF» control. Release the con-
trol to re—display the markers.
Heading
ﬂanker
North mark-r
Figure 2-6 Heading marker and north marker
2.13 Magnifying Long Range
Echoes (echo stretch)
Normally, the reﬂected echoes from long range
targets appear on the display as weaker and
smaller blips even though they are compensated
by the radar‘s internal circuitry, The echo stretch
function magnifies these small blips in all
ranges. Two types of echo stretch are available:
551 which stretches echoes in bearing direc-
tion and E32 which stretches them in both range
and bearing directions.
To turn the echo stretch on or off, press the
[AIC RAIN (ES)] control. Each press changes
the echo stretch function in the sequence of
E51, E52 and OFF. ES] or ES2 appears at
the top right—hand comer of display when
echo stretch is on.
Em match 1 Echo stretch 2
Figure 2-7 Echo stretch
Note1zThis function magniﬁes not only targets
but also sea clutter and radar
interference. For this reason he sure the
controls tor adjustment of sea clutter
and radar interference are properly
adjusted before activating the echo
stretch.
Note 2: E52 is not available on short ranges.
2.14 Measuring the Range
You can measure the range to a target three
ways: by the range rings, by the cursor, and by
the VRM (Variable Range Marker).
Measuring range by range rings
Count the number of rings between the center
of the display and the target. Check the range
ring interval and judge the distance of the echo
from the inner edge of the nearest ring.
To turn the rings on or off, see the menu opera—
tion later(Chapter 3).
Measuring range by cursor
Operate the trackball to place the cursor inter-
section on the inside edge of the target echo,
The range to the target, as well as the bearing,
appears at the bottom of the display.
Measuring by VRM
1. Press either [VRM 1] or [VRM 2] key. The
readout of the active marker is circum-
scribed.
-\., —\.
EBL
345.6°R
23 O°R
F igure 2-8 Display bottom, showing location
of EBL and VRM readouts
2. Operate the trackball to place the outside
edge of the VRM on the inside edge of the
target. The trackball must be operated within
ﬁve seconds after pressing a [VRM] key, oth-
erwise the corresponding VRM cannot be
operated. Press the [VRM] key again to ad-
just the VRM.
3. Check the VRM readout at the bottom rightv
hand comer of the display to ﬁnd the range
to the target.
4. To anchor the VRM, press the [VRM] key
again.
To erase the VRM. press and hold down the
corresponding [VRM] key about two seconds.
m“ \ s.o NM
Range ring -—— 2.0
Interval ________
Target VRM1
Cursor
VRMZ
VHMI
/ range
Cursor range ;— 4.0 NM 3.0 NM— VRM2
range
F igure 2-9 Measuring range by the cursor
and VRM
Note: You can display the range readout oi
the VRM and cursor in nautical miles,
statute miles or kilometers. For details
see the next chapter.
2.15 Measuring the Bearing
There are two ways to measure the bearing to a
target: by the cursor, and by the EBL (Electronic
Bearing Line).
Measuring bearing by cursor
Operate the trackball to bisect the target with
the cursor intersection. The bearing to the tar-
get appears at the bottom of the display.
Measuring by EBL
l. Press the [EBL l] or [EBL 2] key.
2 Operate the trackball to bisect the target with
the EBL.
The trackball must be operated within ﬁve
seconds after pressing an [EBL] key, other-
wise the corresponding EBL cannot be oper-
ated. Press the [EBL] key again to adjust the
EBL.
3. Check the EBL readout at the bottom left-
hand corner of the display to ﬁnd the bear-
ing to the target.
4. To anchor the EBL, press the corresponding
[EBL] key again.
To erase the EBL and its readout, press and hold
down the corresponding [EBL] key about two
seconds.
6,0 NM
1° Target
Cursor
EBL!
EBLZ
Cursor
. EBL Beanng
EBL‘I beanng _m . ..
EBL! bearing _. 13541“ a won an NM
Figure 2-10 How to measure bearing by EBL
and cursor
Note: The bearing readout for the EBL and
the cursor can be displayed in relative
or true bearing (true bearing requires
heading sensor input). For North-up
and Course-up display modes the
bearing reference is always true.
Tips for measuring bearing
' Bearing measurements of smaller targets are
more accurate: the center of larger target pips
is not as easily identiﬁed.
0 Bearings of stationary or slower moving tar-
gets are more accurate than bearings of faster
moving targets.
0 To minimize bearing errors keep echoes in
the outer half of the picture by changing the
range scale; angular difference becomes dif-
ﬁcult to resolve as a target approaches the
center of the display.
2.16 Using the Offset EBL
The offset EBL provides two functions: predict
collision course of radar target and measure the
range and the bearing between two targets.
Predicting collision course
1. Operate the trackball to place the cursor on
the center of the target,
2. Press the [EBL 1] key to turn on EBLl.
3. Press the [EBL OFFSET] key. EBLl‘s ori-
gin shifts to cursor location.
4. After waiting several minutes, press the
[EBL 1] key again.
5. Operate the trackball to pass EBLl through
the center of the target.
If the target tracks along the EBL towards the
center of the display (your vessel’s position),
the target may be on a collision course.
To cancel the offset EBL, press the [EBL OFF-
SET] key.
EBLi ong‘n
(inﬁll MOI ' 1
01 larval)
Target mom
here. Onset EBL
(EBLI)
VRM
Eeu a [ﬁrm—van,
beams range
Figure 2-11 Predicting collision course by
using the oﬁ'set EBL
Measuring range and bearing between
two targets
The procedure which follows shows how to
measure the range and bearing between target
“A” and target “B" in Figure 2-12.
1. Operate the trackball to place the cursor on
the center of target “A".
2. Press the [EBL 1] key to turn on EBLl.
3. Press the [EBL OFFSET] key. EBLl’s ori~
gin shifts to cursor location.
4. Press the [EBL 1] key.
5. Operate the trackball to bisect target “B“ with
EBL] . Check the EBLl readout to find the
bearing between target “A" and target “B".
6. Press the [VRM 1] key to turn on VRM].
Operate the trackball to place the outside
edge of VRM] on the inside edge of target
B‘ Check the VRM readout to ﬁnd the
range between target “A" and target “B”.
To cancel. press the [EBL OFFSET] key. 2,18 Zoom
The zoom feature allows you to double the size
of the area between your vessel and any loca-
tion within the current range to lake a closer
VRMI look at an area of interest.
EBL1
1. Select location with the cursor.
2. Press and hold down the [SHIFT/ZOOM]
key about two seconds ZOOM appears at
the top right comer when the zoom function
is on.
EsL1—— m £VRM1
bearing rungs
Figure 2-12 Measuring the range and bearing
between two targets by usmg lhe aﬁrel EBL cm“,
2.17 Shifting (off centering) the
Picture
Your vessel‘s position can be shifted up to 75% (3) Place curse, @ pms [Ft] m mum
of the range in use to view the situation around where desired.
our vessel without than in the ran e or size
if targets. g g g F igurt 2-14 Zoomfunctian
1. Operate the trackball to set cursor where de- Note: Zoom is cancelled when range or
sired. presentation mode is changed.
2, Press the [SHlFr/ZOOM] key. Cancelling zoom
OFFCENTER appears at the mp right cor- Press the [SHIFT/ZOOM] key again.
net of the display when the picture is shifted.
® Place cursor ® Press SHIFT ZOOM
where desired. key lo aft center display.
Figure 2-13 Shifting the picture
Cancelling shifted picture
Press the [SHIFT/ZOOM] key again.
3.5 Displaying Navigation Data
Navigation data can be displayed at the screen
bottom if this radar receives navigation input
in DEC 1162 format. Navigation data include;
0 Position in latitude and longitude or Duran-
C time difference
0 Range, bearing and time—to-go to both
waypoint selected on the navigator and the
CUFSOI'
l Speed.
(If the navigation input includes destination
data, waypoint position is denoted on the radar
display by a dashed ring.)
To turn navigation data on or of!
Press the [F 1] key if its function is set for DISP
DATA (default setting), or select DATA DISP
on the menu‘
Data
] Navigation
Figure 3-6 Typical navigation data display
3.3 Suppressing Radar
Interference
Radar interference may occur when near another
shipborne radar operating in the same frequency
band as your radar. Its on-screen appearance is
many bright dots either scattered at random or
in the form of dotted lines extending from the
center to the edge of the display. Figure 3—4 il-
lustrates interference in the from of curved
spokes. Interference effects are distinguishable
form normal echoes because they do not ap-
pear in the same place on successive rotations
of the antenna.
Figure 3—4 Radar interference
Four levels of interference are available, includ-
ing off: IRl. IRE. IR3 and OFF. lR3 provides
the highest level of rejection.
1. Press the [MENU] key.
2. Select “INT REJECT" and press the [ACQ/
ENTER] key.
3. Select Icvel desired by pressing the [ACQ/
ENTER] key.
4. Press the [MENU] key to close the menu.
IR and level selected appears at the bottom right
corner on the display when the interference re-
jection circuit is turned on.
3.4 Selecting Pulsewidth
Pulsewidth is the transmission time of a single
radar pulse, The longer the pulsewidth the
greater the direction range capability. however
range accuracy and range resolution are re-
duced.
Pulsewidth can be selected to short or long on
the 1.5 and 3 nautical rnile ranges.
1. Press the [MENU] key.
2. Select “OTHER MENU” and press the
[ACQ/ENTER] key.
[OTHERS]
Salsa item by T-tzall
and press ENTER key.
I Panel Dimmer I 2 3 I
2 . Mark Brill 1 2 3 I
3 . HD Mlﬂt I 2 a I
4 . Characters | 2 a I
5.Tra|lTone “- Multi
5 . Pulselenglh Shun m
7 . Noise Reina II On
5.1’rail Time I 305 1M
3M 6M |5M anM Cont
9 Tune m Manual
10 WPT Mark I. On
it. EBL not ﬁll True
12. vnM umt ||| tun sm
13. Wa|enman El 5M ton mm
m srav Dtsp w m Eccmo Nav
l5. Guard Mode II Out
15 Own Posltion TD
w Cursor Fosr LIL
lB Alm Sense LV _ Med Hig
19 Dead Sector E. On
20 Range I I I I! l I
2 I 4 I B I 16 I! I I ll‘
21 am Haj II On
22 Sell Test
23 Instant-men Seiuu
‘Max, mtg: ls.
FR-7112z72
Flt—7252 9a
Figure 3-5 OTHER MENU
3. Select “6. Pulselength" by operating the
trackball.
4. Select Short or Long by operating the
trackball.
5. Press the [ACQ/ENTER] key.
6. Press the [MENU] key to close the menu.
Dashed line:
no alarm :
zone
IN ALARM OUT ALARM
Figure 3-8 In and Our alarm
Setting a guard zone
Preparation
1.
3.
4.
Press the [MENU] key, and then select
“OTHER MENU,“ and press the [ACQ/EN-
TER] key.
Select “15. Guard Mode" and “In" (alarm
on target entering zone) or “Out" (alarm on
target exiting zone) by operating the
trackball.
Press the [AGO/ENTER] key.
Press the [MENU] key to close the menu.
To set a guard zone
I.
Mentally create the guard zone you want to
set. For example‘ the guard zone shown in
Figure 379 (l).
Operate the trackball to set the cursor on
point A or B. Press the [GUARD ALARM]
key. “*G (IN)" or “*G (OUT)", with aster-
isk blinking, appears at the top right-hand
comer of the display. See Figure 3-9 (2). (The
asterisk indicates the guard zone is partially
set.)
Operate the trackball to set the cursor on
point C or D, See Figure 379 (3).
Press the [GUARD ALARM] key. The as-
terisk disappears. See Figure 3-9 (4).
Asterisk mm
Gull! .
mm m A G um
c i
Dug cur-er
new.
at)
(t) Mentally create (2) Drug cursor to
the ward mm to set. top Is" corner of
m and press
[sumo ALARM].
G (N)
(4) Guard zone (3) Dru cursor to
mpleted. bottom right comer
of zone and pm;
[GUARD Aunw.
Figure 3-9 How to set the guard zone
Sllencing the audlble alarm
Any radar targets violating the guard zone will
trigger the audible alarm. You can silence the
audible alarm by pressing the [GUARD
ALARM] key. When this is done. “G(ACKN)"
replaces “G(IN)." This means the alarm is ac—
knowledged. Press the key again to reactivate
the alarm.
Cancelling the guard zone and alarm
Press and hold down the [GUARD ALARM]
key until the guard zone disappears.
3.6 Echo Trail
You can show the movement of all radar tar-
gets relative to your vessel in afterglow. This
function is useful for alerting you to possible
collision situations.
Starting echo trail
Press the [ECHO TRAIL] key.
TRAIL, the echo trail time selected (on
“OTHER MENU") and elapsed time appear at
the top right—hand comer of the display. Then,
afterglow starts extending from all targets.
Figure 3-7 How the echo trail feature works
Note: Trails are restarted when range or
mode is changed or zoom or shift is
turned on.
Fixed time trail
1. When the elapsed time clock counts up to
the trail time selected, the elapsed time dis»
play freezes.
2. The oldest portions of trails are erased so
only the latest trail, equal in length to the
trail time selected. is shown.
3. Trail continues.
For example, the one minute trail time is se-
lected. When the elapsed time clock counts up
to 60 seconds, the elapsed time display freezes
at “60," but the latest one minute of trail is
erased and then trail continues,
Continuous trail
The maximum continuous trail time is 99 min-
utes and 59 seconds. When the elapsed time
clock counts up to that time the elapsed time
display is reset to zero and trail begins again.
Cancelling echo trail
Press the [ECHO TRAIL] key again.
Changing trail attributes
Trail gradation and trail time can be selected
on the OTHER MENU.
Table 3-1 Trailing attributes
Trails can be shown in
single or multiple
gradations. Multiple paints
trails getting thinner with
time just like the aﬁerglow
on an analog PPI radar.
Trail Tone
Single Multiple
Trails can be set for 15
sec., 305ec., lmin.. 3mm,
6min., 15min, 30min, or
continuous.
Trail Time
3.7 Guard Alarm
The guard alarm allows the operator to set the
desired range and hearing for a guard zone.
When ships. islands, landmasses. etc. violate the
guard zone an audible alarm sounds and the
offending target blinks to call the operator’s at-
tention.
Selection of guard zone type
The guard alarm can be set to sound when a
target enters or exits the guard zone. You can
select which type of guard alarm you want
through the menu.
lnalarm
The alarm sounds on targets entering the guard
zone. “G (IN)" appears at the top right-hand
comer when the In alarm is selected.
Out alarm
The alarm sounds on targets exiting the guard
zone. “G (OUT)“ appears at the top right~hand
comer when the Out alarm is selected.
3.9 OTHER MENU Description
The table below summarizes the OTHER MENU.
Table 32 OTHER MENU Description
Item Description
1. Panel Dimmer Selects level of panel backlight.
2. Mark Brill Selelcts brilliance of VRM. EBL, cursor, guard zone and WP
mar s.
3. HD Mark Ems brilliance of heading marker.
4. Characters Selects brilliance of characters.
5. Trail Tone Selects gradations of echo trails
6. Pulselength Selects pulselength for 1.5 and 3 mile ranges.
7. Noise Reject [Select "On" to reject noise.
8. Trail Time Selects the trail time.
9. Tune l§elects automatic or manual tuningt
To tune manually:
1. Select “Manual" by the trackball.
2. Press the [ACQ/ENTER] key to enable manual tuning.
3. While pressing and holding down the [GAIN] control, operate
the trackball. (adjustment range;
FR7062:1.0-l lt9V, FR7112/7252:l.0-32 V)
4. Press the [MENU] key to close the menu.
“MANUAL” a pears at the top right-hand comer when manual
tuning 15 In ef ect.
10, WPT Mark Selects "On" to display the waypoint mark.
I l. EBL Ref Selects EBL reference for relative or true.
12. VRM Unit Selects distance unit of VRM and cursor for nm, km or sm.
13. Watchman
Tums watchman on (set rest period) or off.
14. STBY Disp
15. Guard Mode
Selects the condition at stand-by; display “STBY” or navigation
data, or go ll'llO the economy mode.
Selects condition which triggers guard alarm: in or out.
16. Own Position
17. Cursor Posi
Displays the own shi ‘s position in lat/long or Loran C TDs.
(Requires NAV data?
Displays the cursor position in range/bearing or lat/long
18. Alm Sense LV
Selects minimum echo strength which triggers guard alarm.
19, Dead Sector
Select “On" to display the dead sector, which shows the area
where the radar 15 no transnutted.
23. Installation Setup
. Range Selects ranges to use.
. 2nd Rej xSelect “On" to suppress second-trace echoes.
22. Self Test Tests keys, ROM and RAM, checks antenna rotation speed, and
displays program no.
For technicians.
Notes on the guard alarm
0 The alarm is a useful anti-collision aid, but
does not relieve the operator of the respon-
sibility to also keep a visual lookout for pos
sible collision situations.
0 When the radar range is less than one half of
the guard zone range, the guard zone disap-
pears and “G (IN)“ or “G (OUT)” appears
in inverse Video. lfthis happens, raise range
to re-drsplay the guard zone.
0 A target echo does not always mean a land-
mass. reef, ships or surface objects but can
imply returns from sea surface or precipita—
tion. As the level ofthese returns varies with
environment, the operator should properly
adjust the A/C SEA. A/C RAIN and GAIN
to be sure the alarm system does not over-
look target echoes.
3.8 Watchman
The watchman function periodically transmits
the radar for one minute to check for targets in
a guard zone. If it ﬁnds change in the zone from
the prevrous transmission the audible alarm
sounds and the radar transmits continuously.
This feature is useful when you do not need the
radur‘s function continuously but want to be
alerted to radar targets in a speciﬁc area.
Tx t-by . Tx St-by ?????
.A. . ﬁ/ igﬂ t_v._/
1mm 5.100r 1mm 5.100r
20 min 20 min
Watchman
starts.
Figure 3-10 How watchman works
How watchman works
When the time selected for the watchman rest
period has elapsed, the radar automatically
transmits for one minute to check the condition
inside the guard zone. lfthere is no changev |he
radar goes into standby (“WATCHMAN" ap-
pears during stand-by.) If there is change, the
radar sounds the audible alarm, cancels the
watchman function and transmits continuously.
Turning on watchman
1. Create a guard zone (usually 360 degrees) '
with the guard alarm function.
Press the [MENU] keyi
Select “OTHER MENU".
Press the [AGO/ENTER] key.
Select “13. Watchman”.
Operate the trackball to select watchman rest
period; 5 minutes, 10 minutes or 20 minutes.
7. Press the [ACQ/ENTER] key.
8. Press the [MENU] key to close the menu.
“WATCHMAN” appears at the top of the
screen, the radar transmits for one minute to
check for targets inside the guard zone, and then
the CRT shuts off and the radar goes into stand-
by.
oweww
Cancelling watchman
Go into the “OTHER MENU” , and set “13.
Watchman" for off.
Note 1 :Watchman can be used without a guard
zone.
Note 2:The alarm sounds just before the radar
starts and stops transmitting.
4. FALSE ECHOES
Occasionally false echoes appear on the screen
at positions where there is no target. In some
cases the effects can be reduced or eliminated.
The operator should familiarize himself or her-
self with the appearance and effects of these
false echoes, so as not to confuse them with
echoes from legitimate contacts
4.1 Multiple Echoes
Multiple echoes occur when a short range,
strong echo is received from a ship, bridge, or
breakwater. A second, a third or more echoes
may be observed on the display at double, triple
or other multiples of the actual range of the tar-
get as shown in Figure 4-1. Multiple reﬂection
echoes can be reduced and often removed by
decreasing the sensitivity or properly adjusting
the A/C SEA.
True
echo
Own ship
Multiple
echo
Figure 4-l Multiple echoes
4.2 Side-lobe Echoes
Every time the antenna rotates. some radiation
escapes on each side of the beam—called
“side-lobes." If a target exists where it can be
detected by the side-lobes as well as the
main-lobe, the side-lobe echoes may be repre-
sented on both sides of the true echo at the same
range, as shown in Figure 4-2. Side-lobes show
usually only at short ranges and from strong tar-
gets. They can be reduced through careful re»
duction of the sensitivity or proper adjustment
of the A/C SEA.
M ai n-I obe True echo
/- Side-lobe
Spurious
target
Antenna
Figure 4-2 Side-lobe echoes
3.10 Function Keys
The function keys (F 1 and F2) work like the
auto-dialing feature of a telephone, automati—
cally executing the function assigned to them.
The assigned function can be turned onloft' by
pressing appropriate function key again.
Default settings
F]: Display NAV/ARPA data
F2: Noise rejector
How to program function keys
1. Press the [MENU] key.
2. Press [F1] or [F2] to open the function menu.
[SETTING FOR F1 KNOB]
03st by T-ball a press sure
Press MENU key to escape.
Figure 3-10 Function menu
3. Select function desired.
4. Press the [ACQIENTER] key.
5. Press the [MENU] key to close the menu,
3.11 Adjusting Brilliance of
Markers
“2. Mark Brill” on the OTHER MENU adjusts
the brilliance of markers such as the cursor.
3.12 Suppressing Second-Trace
Echoes
In certain situations, echoes from very distant
targets may appear as false echoes (second-trace
echoes) on the screen. This occurs when the re-
turn echo is received one transmission cycle
later, namely, after a next radar pulse has been
transmitted. To suppress them, select “2nd Rej
On” on the OTHER MENU.
3.13 Suppressing Nolse
Electrical noise can be suppressed by hinting
on “7. NOISE REJ" on the OTHER MENU.
This function is available by pressing the [F2]
key (default setting).
3.14 Outputting Target Position
Target position data can be output to a plotter
in IEC 1162 format. Press and hold down the
[TLL] key to output the data. This function re-
quires position data and heading signal.
3.15 Tuning the Receiver
The radar receiver can be tuned automatically
or manually, and the default tuning method is
automatic. In automatic tuning, the radar is au—
tomatically tuned everytime the radar is
switched to “Tx” and the indication "TUNING"
appears during tuning.
The tuning bar at the top right-hand comer of
the display shows tuning condition. Generally,
the longer the tuning bar the better the tuning
condition. however the length of the bar changes
with number of radar echoes, range and other
factors. Cunent tuning method is shown above
the tuning bar as either “AUTO" or
“MANUAL.”
For how to tune the receiver manually. see "9.
Tune" on page 3-7.
Note: Automatic tuning may not work
properly it own ship’s radar receives the
radar wave 01 another ship’s radar.
It this is the ease, the radar will be out
of tune. Press the [STBYITX] key twice
to retune.
5. MAINTENANCE 8: TROUBLESHOOTING-
This chapter tells you how to keep your radar
in good working order. Before reviewing this
chapter please read the safety information which
follows.
¢ WARNING
Do not open the equipment.
improper handling can result in electrical shock.
Only qualiﬁed personnel should work Inside the
equipment.
RF HADIA‘HON HAZARD
The radar antenna emits nigh lrequoncy
radio radiation which can be harmful.
particularly to your eyes.
Never look directly into the antenna from a distance oi
less than two ieet when the radar is in operation as
you could injure the come of your eyes. Always
make sure the radar ll set to stand—by or is turned elf
belore stafﬁng work on the antenna unit.
5.1 Preventive Maintenance
Regular maintenance is important for good per-
formance. Always keep the equipment as free
as possible from dirt, dust, and water splashes.
Make sure all screws securing the components
are properly tightened.
A maintenance program should be established
and should at least include the items listed in
Table 5-l.
5.2 Replacing the Fuse
The fuse in the fuse holder at the back of the
display unit protects the equipment against re-
verse polarity of ship's mains, overcurrent, and
equipment fault. If the fuse blows, find the cause
before replacing it. Never use an incorrect fuse
- serious damage to the equipment may result
and void the warranty.
FR-7062f7112 is shipped with a 15A fuse for
12V ship's mains. If the ship's mains is 24/32V.
change the fuse to 10A (supplied).
FR-7252 is supplied with a 10A fuse for 24/32
V ship's mains.
line the proper it...
Fuse rotting is shown on page 54,
Use at among iuse can result In
equipment demo.
Table 5-1 Recommended maintenance emsmm
Exposed nuts
and bolts on
antenna unit
then call for repair.
6 months to
1 year
Display unit
connectors
corrosion.
Check for corroded or loosened
nuts and bolts. If necessary, clean
and repaint them thickly. Replace
them if heavily corroded.
Check for dirt and cracks on
radiator surface. Thick dirt should
be wiped off with soft cloth
dampened with fresh water. If a
crack is found. apply a slight
amount of sealing compound or
adhesive as a temporary remedy,
Check for tight connection and
Sealing compound may be used
instead of paint. Apply a small
amount of grease between nuts and
bolts for easy removal in future.
Do not use plastic solvent
(acetone) for cleaning. If you need
to remove ice from antenna unit,
use a wooden hammer or plastic
head hammer. Crack on the unit
may cause water ingress, causing
serious damages to inwmal circuits.
If corroded, contact your dealer for
replacement.
4.3 Indirect Echoes
Indirect echoes may be returned from either a
passing ship or relumed from a reﬂecting sur-
face on your own ship, for example. a stack. In
both cases. the echo will return from a legiti»
mate contact to the antenna by the same indi-
rect path, The echo will appear on the same
bearing of the reflected surface. but at the same
range as the direct echo. Figure 4-3 illustrates
the effect of an indirect echo. Indirect echoes
may be recognized as follows:
' they usually occur in a shadow sector
' they appear on the bearing of the obstruc-
tion but at the range of the legitimate con-
tact
' when plotted. their movements are usually
abnormali and
- their shapes may indicate they are not direct
echoes.
True
Indirect tndtrect echo
path echo
\ \
x } Heading
line
True
echo
Indirect
Indirect echo
echo
F igure 4 -5 Indira"! tdmex
4.4 Blind and Shadow Sectors
Funnels, stacks, masts, or derricks in the path
of antenna may reduce the intensity of the ra-
dar beam. If the angle subtended at the antenna
is more than a few degrees a blind sector may
be produced Within the blind sector small tar—
gets at Close range may not be detected while
larger targets at much greater ranges may be
detected, See Figure 4-4.
Vessel taller
than when
Mast, etc. in
path 00 radar
beam
Wharf
Wharf
Blind sector ' \
(no echo) SIZE 0! blind sector
depends on target
SIZE and range,
Figure 4-4 Blind and shadow rat-mm
'5.4 Self Test
The self test facility checks the keyboard. ROM
and RAM for proper operation.
1. Press the [MENU] key.
2. Select "OTHER MENU".
3. Select “22. Self Test" and press the [ACQ/
ENTER] key. The following display appears.
[SOllTut]
Kay test: Pres: Sam key and
quack Oil-56m" indication
lights.
(Fm MENU lav OTHERS mm.)
Figure 5-I Self rest screen
4. The ROM and RAM are automatically
checked. lf NG (No Good) appears to the
right of ROM or RAM indication, contact
your dealer for advice. ARP- lOTEST results
appear only when optional ARP-IO board is
mounted.
5. To check the keyboard. press any key ex-
cept [ACQ/ENTER] and [POWER] keys.
The pressed key‘s on—screen location lights
in black while the key is presserL if the key
is operating properly.
6. Press the [ACQ/EN'I‘ER] key to check the
display circuit. The following pattern should
appear.
Figure 5—2 Test pattern
7. Press the [MENU] key to back to the Self
Test menu.
8. To escape from the test, press the [MENU]
key.
5.5 Life Expectancy of Magnetron
The following table shows the life expectancy
of the magnetrons.
Table 5-3 Life expectancy of magnetrons
Llfe expectancy
Type
E3560
000439-050
MGS389 000-135-146
MGSZ4l 0004004136
E3566 —
Ml458 000140344
MGS436 000-140—762
2,000 - 3,000 hours
FR-7l 12 (Including stand-by)
5.3 Troubleshooting
Table 5~2 contains simple troubleshooting pro
cedures which you can follow to try to restore
normal operation. If you cannot restore normal
operation, do not attempt to check inside any
unit of the radar system. Any repair work is best
left to a qualiﬁed technician.
Table 5-2 Troubleshooting table
' try adjusting the control panel
backlighting on the OTHERS MENU
- battery may have discharged.
- check power fuse at rear of display
unit
you pressed the
[POWER] key to
turn on the radar
the control panel
does not light
- try adjusting the brilliance.
nothing appears on
the display or display
contrast is poor
characters are - request service.
distorted
the antenna does not ° the problem may be in antenna unit.
rotate Request service.
characters and - have a qualiﬁed technician check the
indications are set
abnormal
the radar has
warmed up and you
pressed the [STBY/
TX] key to transmit
neither noise nor - check signal cable for damage.
targets appear
(indications and
markers do)
you have adjusted
the gain with A/C
RAW and A/C
SEA off
neither indications - check the signal cable for damage.
nor markers appear
(noise and targets do)
the sweep (radial line - the problem may be in the antenna
sweeping around the unit. Request service.
there is no change in
display) is not
- request service.
sensitivity
synchronized with
a key is pressed nothing happens - key may be faulty. Request service.
antenna rotation
6. ARP-10 (OPTION)
& WARNING
No one navigational aid should be relied
upon for the safety of vessel and crew.
The navigator has the responsibility to
check all aids available to contlrm
position. Electronic aids are not
a substitute for basic navigational
principles and common sense.
- This auto plotter automatically tracks an
automatically or manually acquired radar
target and calculates its course and
speed, indicating them by a vector. Since
the data generated by the auto plotter
are based on what radar targets are
selected, the radar must always be
optimally tuned for use with the auto
plotter. to ensure required targets will not
be lost or unwanted targets such as sea
returns and noise will not be acquired
and tracked,
- A target does not always mean a land-
mass, reel. ships or other surface vessels
but can imply returns from sea surface
and clutter. As the level ol clutter changes
with environment, the operator should
properly adjust the A/C SEA. A/C RAIN
and GAIN controls to be sure target
echoes are not eliminated from the
radar screen.
The plotting accuracy and response of
this auto plotter meets lMO standards.
Tracking accuracy is affected by the
following:
. Tracking accuracy is affected by course
change. One to two minutes is required to
restore vectors to full accuracy after an
abrupt course change. (The actual
amount depends on gyrocompass
specifications.)
0 The amount of tracking delay is inversely
proportional to the relative speed of the
target. Delay is on the order of 15—30
seconds for high relative speed; 30—60
seconds for low relative speed.
Display accuracy is affected by the
following:
. Echo intensity
0 Radar transmission pulsewidth
- Radar bearing error
- Gyrocompass error
- Course change (own ship or target)
6.3 Activating the Auto Plotter
To activate the ARP-lO, follow the steps shown
below.
1,
Adjust the GAIN, A/C SEA and NC RAIN
controls for proper radar picture
Press the [MENU] key to open the main
menu.
Operate the trackball to select “ARP-IO
MENU".
| ARP MENU 1
Select “mm by T-ball
and press ENTER key.
I, Display on II
2 . All Camet
3 . Vector Ref Re! I.
4 . Vector Length nos 1M
8M 6M I5M III
Iliss 303 1M
2M 3M 6M
lIo.5 mm an
arm 50m Gun
- 1M 2M 3M
4M 5M BM
II On
. History
4. Press the [ACQ/ENTER] key. The menu
shown in Figure 6—1 appears. Figure 6-1 ARP menu
5. Operate the trackball to select the menu item
“1. Display".
6‘ Operate the trackball to select “On".
7A Press the [ACQIENTER] key,
8. Press the [MENU] key to close the menu.
Target is being tracked but Is not selected
for data readout
Threatening
Target FuII “gel
Mark Target selected
for data reading
(large circle)
Auto
Acquisition
Area
Lost Target
van
emu
awn ”new
mus vscmn we?“ ME 37.5?
mum an arm mu 1m ARPA Data Area
Figure 6-2 ARP display
6.1 General
The Auto Plotter ARP-IO is an optional circuit
board which is accommodated in the display
unit of the FR—7062 radar.
The Auto Plotter pemiits manual or automatic
acquisition and automatic tracking of up to 10
radar targets. An internal microprocessor cal-
culate target data such as speed and course and
displays the results in alphanumeric and by vee—
tors. To ensure the reliability of the displayed
target data, the radar must be properly adjusted
for minimum sea returns and noise.
Principal speelﬁeatlons
Acquisition and tracking
0 Acquisition of up to 10 targets between 0.2
and 16 nm.
0 Automatic tracking of up to 10 acquired tar—
gets between 0.1 and 16 nm.
Vectors
Vector length: 30 st 1. 3, 6, 15, 30 min.
Orientation: True velocity or relative velocity
Past positions
5 past positions at intervals of 15, 30 s, l, 2, 3,
6 min.
Alarm
Visual and audible alarms against targets vio—
lating CPA/T CPA limits; visual alann against
lost targets.
Target discrimination
A target measuring about 800 m or more in the
radial or circumferential direction is regarded
as a landmass and not acquired or tracked. Ech-
oes smaller than about 800 m are regarded as
true targets.
6.2 Keys Used for Auto Plotter
The Auto plotter utilizes the following touchpad
keys. Given below is a brief description of these
keys.
MENU:
Displays/Eraser» the main menu.
SELECT/CANCEL:
(Long press) Terminates plotting of the target
selected with the cursor.
(Short press) Displays the data of target selected
with the cursor.
ACQ/ENTER:
Acquires the target selected with the cursor.
ARP-10 MENU operation
The ARP-lO MENU includes the followings:
Display:
Turns on/off the plot symbols, past positions
and target data.
All Cancel:
Cancels the tracking of all targets.
Vector Ref:
Selects relative vector or true vectors.
Vector Length:
mine.
History:
Selects past position plot interval.
CPA Set:
Selects CPA alarm limit. When a target is pre—
dicted to come within this limit. an aural alarm
sounds and at the same time the corresponding
target symbol changes to a blinking triangle.
Note: If the preset CPA limit is set at OFF. 3
target which is on collision course will not pro-
duce an alarm.
TCPA Set:
Selects TCPA alarm limit.
Auto ACQ:
Tums on/off Auto Acquisition Area.
6.6 Terminating Tracking of
Targets
When the ARP-lt) has acquired 10 targets, no
more acquisition occurs unless targets are lost.
Should this happen, cancel tracking of indi-
vidual targets or all targets by the procedure
described below.
Individual targets
Place the cursor (+) on the target which you do
not want to be tracked any longer by operating
the trackball and press and hold down the [SE-
LECT/CANCEL] key.
All targets
Tracking of all targets can be canceled from the
ARP- lO MENU.
1. Open the “ARP-lO MENU“.
2. Select “2.All Cancel".
3. Press the [ACQIENTER] key.
6.7 Displaying Target Data
The ARP— 10 calculates motion trends (range,
bearing, course, speed, CPA and TCPA) of all
targets being tracked at the ARPA Data area.
To turn ARPA data on:
1. Press the [MENU] key.
2. Select the “DISP DATA".
3. Press the [ACQ/ENTER] key to select the
message for “ARP” or “NAV and ARP".
4. Press the [AGO/ENTER] key to set.
5. Press the [MENU] key to close the menu.
At the speed under 5 kts the target data Is
displayed with a delay because of
ﬁltration.
Place the cursor on a wanted target and press
the [SELECT/CANCEL] key. Data on the se-
lected target is displayed at the bottom of the
screen. The symbol of the selected target gets
twice as large as the normal circle. The data in—
cludes the following;
RNGIBRG (Range/Bearing): Range and bear-
ing from own ship to the last-plotted or selected
target position with sufﬁx “T” (Tme) or “M”
(Magnetic). For tme bearings sufﬁx “T" is used
in case of gyrocompass input and sufﬁx “M” is
used in case of magnetic compass input.
COURSFJSPEED (Course/Speed): Course
and speed are displayed for the last-plotted or
selected target with sufﬁx "1'" (True) or “M"
(Magnetic). For true beatings sufﬁx “T" is used
in case of gyrocompass input and sufﬁx “M" is
used in case of magnetic compass input.
CPA (Closest Point of Approach): The clos-
est range a target will approach to own ship.
Do not confuse it with the operator preset CPA
alarm limit.
TCPA: The time to CPA measured with present
speeds of own ship and the targets. Both CPA
and TCPA are automatically calculated. When
a target ship has passed clear of own ship, the
CPA is displayed and the TCPA appears as
“**."". TCPA is counted up to 99.9 min. and
beyond this it is indicated as TCPA>99.9 min.
Deactivating the auto plotter
1. Press the [MENU] key.
2. Open the “ARP-lO MENU".
3. Operate the trackball to select the “1. Dis—
play”.
4. Operate the trackball to select “Off".
5. Press the {ACQ/ENTER] key.
6. Press the [MENU] key to close the menu.
6.4 Manual Acquisition
Follow the steps below to manually acquire a
target. Up to 10 targets can be manually ac-
quired.
1. Place the cursor (+) on a target of interest by
operating the trackball.
2. Press the [ACQ/ENTER] key.
The plot symbol changes its shape according to
the status as below. A vector appears in about
one minute after acquisition indicating the
target's motion trend. lt'the target is consistently
detected (or three minutes. the plot symbol
changes to it solid mark. liacquisition fails, the
target symbol blinks and dixappears shortly.
j SQUARE (dotted)
Immediately after acquisition - Plot symbol
shown in broken lines.
: {SQUARE (dotted with a vector)
One minute after acquisition — Vector still unre-
liable.
o/ CIRCLE (Solid with a vector)
3 minutes after acquisition - Plot symbol
changes to a solid circle indicating the stable
tracking condition.
LARGE CIRCLE
The plot symbol of a target being tracked be-
comes twice as large as the normal symbol when
the target is selected for data reading.
Note 1: The target to be acquired should be
within 0.2 to 18 nm from own ship and not ob-
scured by sea or rain clutter.
Note 2: When you want to acquire 11th target,
cancel tracking one at less important targets.
Note 3: When auto acquisition mode (Auto
ACQ) is on, up to five targets can be acquired. _
For details, see 6.5 Automatic Acquision.
& WARNING
When a tracked target nears another
tracked target, the targets may be
“swapped." When two targets come close
to each other, one of the two can become
a “lost target.“ Should this happen,
reacquisition of the "lost target“ is required
after the two tar-ets have separated.
6.5 Automatic Acquisition
The ARP—IO can acquire up to ﬁve targets au-
tomatically by setting the Auto Acquisition area
predeﬁned in the system. If Auto ACQ is se-
lected after more than ﬁve targets have been
manually acquired, only the remaining capac-
ity of targets can be automatically are acquired.
For example; when seven targets acquired
manually, then the Auto ACQ is switched on,
only three targets can be acquire automatically.
When ﬁve targets have been automatically aC<
quired. “AUTO TARGET FULL" message ap—
pears at top left comer seven on the display.
Setting auto acquisition area
Auto acquisition area is predeﬁned between 2.0
and 2.5 nm in range and 45“ on either side of
the heading maker in bearing. Ifa target comes
into this area. it is acquired automatically.
Figure 64 Auto acquisition area
Follow the steps below to activate the auto ac-
quisition area.
1. Open the “ARP‘IO MENU”.
2. Select “8. Auto ACQ" by operating the
trackball.
3. Operate the trackball to select “On”.
4. Press the [ACQ/ENTER] key.
5. Press the [MENU] key to close the menu.
F N
FR-7062
SPECIFICATIONS OF MARINE RADAR
1 GENERAL
(l) Indication System
FR-7062
PPl Daylight display, raster scan, 8 tones in monochrome
(2) Rang , Pulselength (PI_,L& Pulse Repetition Rat: (PRR)
‘550 Hz on 48 nm mnge or more
(3) Range Resolution
(4) Baring Discrimination
(5) Minimum Range
(6) Bearing Accuracy
(7) Range Ring Accuracy
2. SCANNER UNIT
(1) Radiator
(2) Polarization
(3) Antenna Rotation Speed
(4) Radiator lmgth
(5) Horizontal Beamwidth
(6) Vertical Beamwidth
(7) Sidelohe Attenuation
X'N 12A:
X'N13A:
3A TRANSCEIVER MODULE
(1) Frequency
(2) Modulation
(3) Peak Output Power
(4) Modulator
(5) lntmmedint: Frequency
Bﬁtcr than 20 m
)CNlZA:wiﬂ1in 19°, XN13A: within 12"
25 m (0.25 NM range)
Within 1°
0.9 % ofﬁng: or 8 m, whichever is the greater
Slotted waveguide array
Horizontal
24 rpm nominal: XN12A (100 kl max‘), XNISA (100 kt max.)
48 rpm nominal: XN12A (70kImax.)
XNIZAzl20 cm, XNI3A: 180 cm
XNIZA: less than 19°, XN13A: less than 1.2°
22°
Within £20° ofmain-lobe: his than -24 dB
Outside i20' ofmain—lobe: less than -30 dB
Within ézll)e ofmain-lobc: lass than -24 dB
Outside th' of main-lobe: less than -30 dB
9410 NH-[ztSOMl-lz (X band)
FUN
6 kW
PET Switching Method
60 MHz
6.3 Mode and Length of Vectors
True or relative vector
Target vectors are displayed in relative or true
mode. Own ship does not have a vector in rela-
tive mode.
Vector length
From the ARP-lO MENU, Vector Length can
be set to 30 seconds, 1. 3, 6. 15 or 30 minutes
and the selected vector time is indicated on the
screen.
The vector tip shows an estimated position of
the target after the selected vector time elapses.
It can be valuable to extend the vector length to
evaluate the risk of collision with any target.
Past position display
The ARP- 10 displays equally time-spaced dots
(maximum 5 dots) marking the past positions
of any targets being tracked.
If a target changes its speed, the spacing will be
uneven. If it changes course, its plotted course
will not be a straight line in TM mode.
Operational warnings
There are two main situations which cause the
ARP-lO to trigger visual and audible alarms:
o CPA/TCPA alarm
0 Lost target alarm
CPA/TCPA alarm
Visual and audible alarms are generated when
the predicted CPA and TCPA of any target be-
come less than their preset limits. The audible
alarm continues for 10 seconds.
The ARPBWC>BWR
Loran time diﬁ'crencc: RMA>GM>GTD
Watm’ depth: DPPDBDDBK>DBS
Water tempemmre: MTW>IVDA
Time: ZDA
XTE: RMB>XTF>APB
'1: calculate by magnetic driﬁ.
(7) Output Dam MAOISSNeL 115/210), RS-422
TLL (target dam) and RSD
5. EMBIRONMENTAL CONDITION
(1) Ambient Temperature Scanner Unit: -25°C to +70°C
Display Unit: 45°C to +55°C
(2) Rclativc Humidity 95 % or 165 at +40°C
(3) Waterprooﬁng
Sumner Unit [PXG
Display Unit Chassis: not speciﬁed
Panel: [PX4
61 POWER SUPPLY & POWER CONSUMPTION
(1) Power Supply 12/24/32 vnc (10.3 00 41.6 VDC)
(2) Voltage and Current )(N12A(24rpm): 12 VDC/7.5A, 24VDC/3,8A, 32VDC/218A
XN12A(48rpm): 12 VDC/8.8A, 24VDC/4.4A, 32VDC/3.3A
XNISMZMpm): lZVDC/IOA, 24VDC/5A, 32VDC/3.8A
(3) Power Consumption XN12A(24rpm): 70 w to 90 W(100 1a)
XN12A(481-pm): 85 w to 105 woo 1a)
XN13A(24rpm): so w m 120 W(100 1a)
7. DIMENSIONS AND MASS
See the Outline Drawings
8. COATING COLOR
(1) Display Unit Panel: N30
Chassis: 215GY5/l.5
(2) Scanner Unit N95
E H B u E Q FIR-7082
(6) Tuning Automatic or manual
(for manual, selea manual tuning on menu and tune by trackball)
(7) Receiver Front End WC (Microwave IC)
(8) Bandwidth Tx pulselength 0408 us and 0.3 us: 25 MHz
Tx pulselength 0.x us: 3 MHz
(9) Duplexer Circulamr with diode limim
4. DISPLAY UNIT
(1) Indication System PPl Daylight display, raster scan, 8 colors
(2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT
effectivedisplay areal-note than 180 mm
(4) Markers Heading Line, Bearing Scale, Range Rings,
Variable Range Marker (VRMl, VRMZ),
Electronic Bearing Line (EBLI, EBLZ),
Tuning Bar, Cursor, Parallel Cursor,
Alarm Zone, Waypoint Mark (navigation input required),
North Mark (heading sensor input required)
(5) Alphanumeric Indications Range, Range Ring Interval, Pulselength(SP, MP, LP),
Display Mode(HU,CU,NU,TM), Interference RejectionﬂRlﬂlZJRB),
Variable Range MarkerW'RMl, VRMZ),
Electronic Bearing Line (EBLl, EBL2),
Automatic A/c SEA (A/c AUTO), Stand—by (ST-BY),
Radar Alarm (WEN), G(0UT), G(ACKN)),
Echo Stretch (E51, E82), Cursor Range, Bearing or LIL Position,
Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time,
Navigation DMnaviprtim input required),
Heading (HDC, beading sensor input required)
(6) Input Dara NMEA0183 (Ver.115/2.0), current loop
Own ship’s position: GGA>RMC>RMA>GLL (GLL is available Ver. 1.5 only)
Speed: RM(>RMA>VTG>VHW
Heading (Tme): l-u)1>l~mG“>rmM“>VHW>VHw"
Heading (Magnetio): HDM>HDG">HDT">VHW>VHW"
Course (True): RMC>RMA>VTG
Course (Magi-en's): VTG>RMC>RMA
FHRQNO FR-7112
SPECIFICATIONS OF MARINE RADAR
FR -7 1 1 2
11 GENERAL
(1) Indication System PPI Daylight display, raster scan, 8 tones in monochrome
(2) Range, Pulselenﬁm (PL) & Pulse Repetition Rate (PRR)
Range (nautical miles)
“550 Hz on 48 rim range or more
(3) Range Resolution Better than 20 m
(4) Bearing Discrimination XNIZA: within 1.9“, XN13A: within 12"
(5) Minimum Range 25 m (0.25 NM range)
(6) Bearing Accuracy Within 1°
(7) Range Ring Accuracy 0.9 % of range or 8 m, whichever is the greater
2 SCANNER UNIT
(1) Radiator SIotted waveguide array
(2) Polanmtion Horizontal
(3) Antenna Rotation Spcai 24 rpm nominal: XNIZA (100 kt max ). XNIZA (100 kt max)
48 rpm nominal XNIZA (70 kt mu )
(4) Radiator Length XNIZA:120 cm, X'NIBA: 180 cm
(5) Horizontal Beamwidth X'NIZA: less than 19°, XN13A: less than 1 2°
(6) Vertical Bearnwidth 22°
(7) Sidclobc Attenuation
XN 12A: Within i20'7 ofmain—Iobe: less than -24 dB
Outside 120“ of main-lobe: less than -30 dB
XN 13A: Within 110° ofmain-Iobe: less than -24 dB
Outside i] 0° of main-lobe: less than -30 dB
3. TRANSCEIVER MODULE
(1) Frequency 9410 MHz tBOMHz (X band)
(2) Modulation PON
(3) Pnk Output Power 10 kW
(4) Modulator FET Switching Method
(5) [ntennediate Frequency 60 MHz
9. COMPASS SAFE DISTANCE
(l)
(2)
Display Unit Standard: 141 m Steeﬁug: 0.8 in
Scanner Unit Standard: 110 m Steering: 0.8 rn
10. ARP MODULE (OPTION)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Acquisition Range 0.2 to 16 NM
Tracking Range 041 to 16 NM
Maximum Number ofTarget lO
Acquisition Time Within 5 sec (scanner minim: 24 rpm)
Alarm Timing Lost target (blink mark, oollisiun alert)
Vector Length 30 sec; 1, 3, 6 or 15 min (selected onmeuu)
Plottinglmerval 30 see; 1,2, 3,4or5min(scleaedonmenu)
Numeric Data Indication Distance, Bearing, Course, Speed, CPA, TCPA
Acquisition Available Speed 100 kt relative
FUR N
Waypointﬂlange, Bearing): RMB>BWC>BWR
Lomn time diﬁ‘erence: RMA>GLC>GTD
Water depth: DPT>DBT>DBK>DBS
Water temperature: MTW>MDA
Time: ZDA
XTE: RMB>XTE>APB
‘l: calculale hymagneticdriﬁ.
(7) Output Data NMEA0183(Ver. 1 5/20), RS-422
TLL (unset data) and RSD
5. EMBIRONMENTAL CONDITION
(1) Ambiem Temperature Scanner Unit: -25°C to +70°C
Display Unit: -15°C to +55°C
(2) Relative Humidity 95 % or loss at +40°C
(3) Waterprooﬁng
Scanner Unit IPXG
Display Unit Chassis: not speciﬁed
Panel: IPX4
6. POWER SUPPLY 8. POWER CONSUMPTION
(1) Power Supply 12/24/32 VDC (10.8 to 41.6 VDC)
(2) Voltage and Current XN12A(24rpm): 12 VDC/8.3A, 24VDC/4.2A, 32VDC/3.lA
XN12A(48rpm): 12 VDC/lOA, 24VDC/5A, 32VDC/3.8A
XN13A(241pm); 12 VDC/10.8A, 24VDCIS.4A, 32VDC/4JA
(3) Power Consumption XN12A(24rpm): 85 w to 100 waoo kt)
XNlZA(48rpm): 95 w to 120 W(70 1a)
XN13A(24rpm): 90 w w 130 W(100 1a)
7. DIMENSIONS AND MASS
See the Outline Drawings
er COATING COLOR
(1) Display Unit Panel: N3.0
Chgsis: 2.5GY5/l.5
(2) Scanner Unit N95
R NO -11
(6) Timing Automatic or manual
(for manual, select manual tuning on menu and tune by trackball)
(7) Receiver Front End MIC (Microwave IC)
(8) Bandwidth Tx pulselength 0.08 us and 03 us: 25 MHz
Tx pulselength 0.8 in: 3 MHz
(9) Duplexer Circulator with diode limiter
4. DISPLAY UNIT
(1) Indication System Pl’l Daylight display, raster scan, 8 colors
(2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT
effective display area more than 180 mm
(3) Ran_e, ‘ , _e Interval, Number of'
mug—pm
(4) Markers Heading Line, Bearing Srale, Range Rings,
Variable Range Marker (VRM 1, VRM2),
Electronic Bearing Line (EBLI, EBLZ),
Tuning Bar, Cursor, Parallel Cursor,
Alarm Zone, Waypoint Mark (navigation input required),
North Mark (heading sensor input required)
(5) Alphanumeric Indications Range, Range Ring Interval, PulselengtluSP, MP, LP),
Display Mode(HU, CU, NU, TM), Interference RejectionﬂRl, l'RZ, IR3),
Variable Range Marker(VRMl, VRMZ),
Electronic Bearing Line (EBLl, EBLZ),
Automatic A/C SEA (AIC AUTO), Stand-by (ST-BY),
Radar Alarm (G(IN), G(0UT). G(ACKN)),
Echo Sir-aah (E51, E52), Cursor Range, Bearing or LIL Position,
Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time,
Navigation Dawnavigadon input required),
Heading (HDC, heading sensor input required)
(6) Input Data NMEA0183 (Ver.l.5/Z.0), current loop
Own ship’s position: GGA>RM('>RMA>GLL (GLL is available Ver.l,5 only)
Speed: RMC>RMA>VTG>VHW
Heading (Tme): l-ﬂ)T>l-lDG">HDM°'>VHW>VHW"
Heading (Magnetic): l-ﬂ)M>HI)G">l-H)T">VHW>VHW"
Course (True): RMC>RMA>VTG
Course (Magmic): VTG>RMC>RMA
FUR N
SPECIFICATIONS OF MARINE RADAR
1. GENERAL
(l) Indication System
(2)
FR-7252
PPI Dayliylt display, raster scan, 8 tones in monochrome
‘550 Hz an 48 nm In 72 nm range, or 500 Hz an 96 nm range
(3) Range Resolution
(4) Bearing Discrimination
(5) Minimum Range
(6) Bearing Accuracy
(7) Range Ring Accuracy
2. SCANNER UNIT
(1) Radiator
(2) Polarization
(3) Antenna Rotation Speed
(4) Radiatorlength
(5) Horizontal Benmwidth
(6) Vertical Bamwidth
(7) SidelobeAumuation
XNIZA:
XNI3A:
3. TRANSCEIVER MODULE
(1) Frequency
(2) Modulation
(3) PeakOmput Power
(4) Modiﬂawr
(5) lntemtediate Frequency
BenetthanZOm
XNIZA: within 1.9“, XNlSA: within 1.2“
25 m (025 NM range)
Within I“
049 %ofmnge or 8 m, Whichever is thegreater
Slotted waveguidearmy
Horizontal
24 rpm nominal: XNlZA (100 kt max), XN13A (100 kt max.)
48 rpm nominal: XNIZA (70 kt max.)
XNIZAZIZO cm, XN13A: 180 cm
XINIZA: less than 19“, “13A: less than 12°
22°
Within £0“ ofmain—lobe: less than -24 dB
Omide =l:20' of main»lobe: 155 than -30 dB
Within $10° ofmain-lobe: less than -24 dB
Outside ill)“ afmain-lobe: less than ~30 dB
9410 MHz sown (x band)
PON
25 kW
FET Switching Method
so MHz
FR-7252
EURQNQ FR-7112
9. COMPASS SAFE DISTANCE
(1) Display Unit Standard: 1.1 111 Steering: 0.8 m
(2) Scanner Unit Standard: 1.0 m Steering: 048 m
10. ARP MODULE (OPTION)
(1) Aoquisitioqunge 0.200 l6NM
(2) Tracking Range 0.1 to IGNM
(3) Maximum Number of Targa 10
(4) Acquisition Time Within 5 sec (scanner mmtiou: 24 rpm)
(5) Alarm Timing Lost target (blink mark, collision alert)
(6) Vector Length 30 sec; 1, 3, 6 or 15 min (selecmd on m)
(7) Plotting Interval 30 sec; 1, 2, 3, 4 or 5 min (selected on menu)
(8) Numeric Dana Indication Distance, Bearing, Course, Speed, CPA, TCPA
(9) Acquisition Available Spud 100 kt relative
Waypoim(Range, Bearing): RMB>BWC>BWR
Lorarl time difference:
Water depth:
Water temperature:
Time:
XTE:
(7) Output Data
RMA>GLC>GTD
DPT>DM>DBK>DBS
MTW>MDA
ZDA
RMB>XTF>APB
‘I: calculate by magnetic driﬁ.
NMEA0183(Veril.5/2.0), 115-422
TLL (targa data) and RSD
5. EMBIRONMENTAL CONDITION
(1) Ambient Temperature
(2) Relative Humidity
(3) Waterprooﬁng
Scanner Unit
Display Unit
Scanner Unit: -25°C to +70°C
Display Unit: 45°C to +55°c
95 % or 1&5 at +40°C
ﬂ’X6
Chassis: not speciﬁed
Panel: IPX4
6. POWER SUPPLY & POWER CONSUMPTION
(1) Power Supply
(2) Voltage and Current
(3) Power Consumptian
7. DIMENSIONS AND MASS
a. comma COLOR
(1) Display Unit
(2) Scanner Unit
24/32 VDC (216 to 41.6 VDC)
X'N 12A(24rpn1): 24VDC/5.2A, 32VDC/3.9A
XN12A(48rpm): 24VDC/5,8A, 32VDC/4,4A
XN13A(24rpm): 24VDC/6.3A, 32VDC/4,7A
XN]2A(24rpm): 105 W to 125 W(100 kt)
XN12A(48rpm): 120 W to 140 W(70 kt)
JCN13A(24rpm): 115 W m 150 W(100 kt)
See the Outline Drawing
Panel: N3.0
Chassis: 2.SGY5/I.5
N95
FR-7252
F U N FR-7252
(6) Tuning Automatic or manual
(for manual, select manual tuning on menu and tune by trackball)
(7) Receiver Front End MIC (Microwave 1C)
(8) Bandwidth Tx pulselength 0408 115 and 0.3 us: 25 MHz
Tx pulselmyh 0,8 us: 3 lVﬂ-lz
(9) Duplexer Circulator with diode limiter
4. DISPLAY UNIT
(1) Indication System PPI Daylight display, raster scan, 8 colors
(2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT
effective displayarearnoredian 180mm
(3) Ran_e, Ran_e Interval, Number of ‘ '
0.75 3 4 6 8 24 36 48
0,25 ..550 l 2 2 312 12
Range (NM) 0.125
Ring Interval (NM) 0.0625 0,125 0.
2 4
(4) Markers Heading Line, Bearing Scale, Range Rings,
Number of Rings
Variable Range Marker (VRMl, VRMZ),
Electronic Bearing Line (EBLl, EBLZ),
Tuning Bar, Cursor, Parallel Cursor,
Alarm Zone, Waypoint Mark (navigation input required),
North Mark (heading sensor input required)
(5) Alphanumeric Indications Range, Range Ring Interval, Pulselmgth(SP, W, LP),
Display Mode(H'U, CU, NU, TM), Interference RejectionaRl, 1R2, IRS),
Variable Range MarkerWRMl, VRMZ),
Electronic Bearing Line (EBLl, EBLZ),
Automatic NC SEA (A/C AUTO), Stand-by (ST-BY),
Radar Alarm (GﬂN), G(0Ul'), G(ACKN)),
Echo Smash (ESI, E52), Cursor Range, Bearing or III. Position,
Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time,
Navigation Data(navigatiun input required),
M. 96
zﬂﬂ 24
Heading (HDC, heading sensor input required)
(6) Input Data NMEA0183 (Ver.l.5l210), currenr loop
Own ship's position: GGA>RMC>RMA>GLL (GLL is available Ver. 1.5 only)
Speed: RMC>RMA>VTG>VHW
Heading (rme); I-ID'l>I-l])G">I-1DM“>VHW>VHW"
Heading (Magnetic): HDM>HDG">HDT">VHW>VHW"
Course (True): RMC>RMA>VTG
Course (Magnetic): VTG>RM(>RMA
cn in
INDEX
“
A N
A/C RAIN 2-5 . A
A/C SEA 24 navtgauon data 3-3
acquisition area 6»2 north marker 26
alarm 34 north-up 2-6
auto plotter 6—2 0
B off center 2-9
bearing 2-7 P
blind sector 4—2 pulselength 3—2
C R
course-up 26 range 2-4
cursor 2-7 radar interference 3»2
CPA 6-2 S '
E SART iii
EBL 2-7 second-trace echoes 3-8
EBL offset 2-8 self test 53
echo trail 34 sensitivity 2—4
echo stretch 2-6 shadow sectors 4-2
echonomy mode 2-3 side-lobe echoes 4»1
F stand-by 2-3
function keys 3-8 T
fuse 5—1 target data 6—5
G target position 3~8
TCPA 6-5
guard alarm 3—4
guard bone 3_5 transmitting 2»3
nonbleshooting 5—2
H true motion 2-6
head-up 2-6 V
heading marker 2-6
I vector 66
index lines 3—1 W
indirect echoes 4-2 wmhma" 36
M zoom 3-6
magnetron 5-3
multiple echoes 4-1
E s! B u N O FR-7252
9, COMPASS SAFE DISTANCE
(1) Display Unit Standard: 1.1 m Sheeting: 03 m
(2) Scanner Unit Standard: 1.7 m Smering: 1,3 in
10. ARP MODULE (OPTION)
(1) Acquisition Range 0.210 16NM
(2) TracldngRange 0.1m16NM
(3) Maximum Number of Target 10
(4) Acquisition Time Within 5 we (saw rotation: 24 rpm)
(5) Alarm Timing Lost target (blink mark, collision alen)
(6) VectorLengdi 30sec; I,3,60r 15min(selectcdonmenu)
(7) Plotting Interval 30 sec; 1, 2, 3, 4 or5 min (selected on menu)
(8) Numeric Data Indication Distance, Bearing, Course, Speed, CPA, TCPA
(9) Acquisition Available Speed 100 kt relative

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
Create Date                     : 2001:05:06 16:27:08
Producer                        : Acrobat Distiller 4.0 for Windows
Author                          : VicodinES /CB /TNN
Title                           : 77875.pdf
Modify Date                     : 2001:05:06 16:27:45-04:00
Page Count                      : 54

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Furuno USA 9ZW7062 User Manual 77875

Furuno USA Inc 77875

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FCC ID Filing: ADB9ZW7062

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