ALPHATRON Marine JMR-611 Series River Radar Instruction Manual
- June 5, 2024
- ALPHATRON Marine
Table of Contents
ALPHATRON Marine JMR-611 Series River Radar
Features
The next-generation river radar from Alphatron Marine / JRC is the JMR-611 radar. This radar is characterized on open water by an excellent suppression of wave action (if a GPS compass is connected) and has a particularly attractive user interface. Both monitors meet the new reflection requirements that are currently imposed on radars. Due to the use of an aerodynamic scanner and accompanying engine, this radar is extremely suitable for the most extreme weather conditions.
- 19-inch fully dimmable LED display
- High quality
- Optional fully optical bonded glass monitor
- Sea state function
- Choice of 6, 7 or 9ft scanner
- Highspeed for 6 and 7ft scanner
- Recording function on CF card
- User-friendly GUI
Sea State function
The JMR-611 radar is the first river radar which
in combination with a GPS compass and smart calculation, technology is able to
minimize the annoying waves on large water, without losing sight of the small
echoes.
Functionality
By connecting a GPS compass you achieve the maximum functionality of this radar. Such as the Sea State function, AIS display, own vectors, docking, true trails and RTH-up function.
Afterglow
By connecting the radar to a GPS compass, the true movements of ships can be
shown, without the image being filled with relative afterglow trails. A great
help in recognizing objects without AIS and determining moving targets.
Echo Border
For a sharper display of the radar echoes, the radar is equipped with the Echo
Border function. In combination with the Expansion function, the echoes will
be shown with a clear outline.
Prediction lines
The unique docking & prediction lines introduced with the JMA-609 radar has
been improved for the JMR-611 radar. By this improved calculation technique, 2
stable lines are shown from the fore and aft ship. These lines (vectors)
indicate where the ship will be in a set time. This feature is available if
there is a GPS compass or 2 GPS antennas (1x fore and 1x stern) installed.
Monitors
The JMR-611 is the first river radar to meet the strict requirements for
maximum reflection from radar monitors. There is a choice of 2 different fully
dimmable monitors, both of which of course meet new requirements.
Robust and design
Choose the robust 19 inch standard LED monitor, without protective glass with
the familiar black aluminum front.
Or choose the modern and refreshing full-glass 19 inch LED monitor. The LED
panel is for maximum performance optical bonded to the glass. 
Alphabridge Inland
The JMR-611 all-glass monitor can be used perfectly in a complete
AlphaBridge Inland console.
The completely flat front of the monitor fits seamlessly into the steel
housing, creating a unique and modern look. This combination is available in
different colors. 
User settings
Multiple users can have different wishes in user setting. Personalize your preferred JMR-611 settings in your own user profile for easy switching. This option proves very usefull as the JMR-611 offers a vast variety of different user settings.
Conning information
If desired, it is possible to show conning information at the top of the
screen for navigation purposes. This information can include Docking,
windmeter, echosounder (2x) and AIS. In combination with the Alphapilot MF the
mode options FU mode or autopilot can be selected. Users who only wish to see
radar information can switch off all additional functions.
Enlarged radar image
By efficient use of the available space on the 19-inch monitor, the maximum
space is used for displaying the radar echoes. This can be increased even
further by closing both conning windows at the top of the screen.
-
Scanner unit
Depending on the available space on board and the required performance, different scanner units are available in sizes 6, 7 or 9ft. All antennas have an aerodynamic design that is suitable for all weather conditions. -
High speed
For fast-moving ships, the rotational speed of the antenna can be easily switched to high speed. This feature is only available for 6 and 7ft antennas.
Radar cable
Because a minimal number of wires are used between the scanner and the
processor unit, the JMR-611 can be connected to almost all existing radar
cable. This is a great advantage for many cases where re-placing the radar
cable is a huge challenge.
Photoshoot
With pressing only a single button, the actual radar images and peripheral
information such as turn indicator value, speed and AIS are recorded
flawlessly on a CF card. This can easily be extracted via a computer for
evaluation or evidence.
Track line
The JMR-611 radar can store its own track line. This stored track line can be
displayed it at a later time. A very useful function in combination with the
AlphaRiverTrackPilot. This gives the user an additional means of checking to
see if the ship is sailing in the best position.
Radar overlay
Because the radar is equipped with a network connection (LAN), a correct and
stable operation is ensured guaranteed to display the radar image on a radar
overlay system such as the RadarPilot720 and AlphaChartOverlay.
Future proof
With it’s aerodynamic antenna and modified motor, the JMR-611 is optimally
prepared for the most extreme weather conditions that are increasingly
occurring worldwide. With these features the radar is also prepared for even
more strict requirements that may be applied in the future.
Control panel
The JMR-611 features a user-friendly control panel with easy access to the
basic radar functions such as amplification, wave and rain suppressor. The
integrated trackball provides access to the radar menu.
In the box
- Scanner unit NKE-387
- Array (standard is 7ft) NAX-16R-7
- Processor unit NDC-1774
- Control panel NCE-5923
- 19-inch LED monitor with aluminum housing JMR-611-AL
- User manual (EN/NL)
- Instruction form (EN/NL)
- CF-card and adapter
Optional
- 6ft array NAX-16R-6
- 9ft array NAX-16R-9
- Radar cable G-003399
- Full glass monitor JMR-611-GL
- Monitor mounting bracket G-006351
System diagram
The radar can be connected to various equipment and sensors onboard a ship.
JRC’s straightforward configuration assures continuous performance
.
Tech Specs
7 ft | 24 rpm | 48 rpm HS
NKE-387-7ft Weight 34 kg (74.96 lbs) 
Specifications
| Scanner unit | NKE-387 |
|---|---|
| Weight | Approx. 42 kg |
| Beam width | Horizontal 1degree (7ft) vertical 25 degree |
| RPM | 26/36/48 auto or manual only 6ft and 7ft |
| Transmission output | 4.9 kW |
| Pulse width | 0.05, 0.1, 0.3, 0.6us |
| PRF | 4000, 2000, 1000 |
| Receiver | Logarithmic, IF=60MHz |
| Scannet unit | NAX-16R-6/7/9 |
| --- | --- |
| Scanner size | 7ft standard, 6ft and 9ft optional |
| Monitor | |
| --- | --- |
| Diagonal | 19 inch |
| Orientation | Portrait only |
| Pixels | 1024×1280 |
| Full glass monitor | Optional |
| Processor unit | |
| --- | --- |
| Weight | Approx. 21 kg |
| Power supply input | 24VDC -10%/+30% |
| Power consumption | Approx. 400W |
| Control panel | NCE-5923 |
| --- | --- |
| Weight | Approx. 1 kg |
| 2nd trackball | Optional |
| Input signals | |
| --- | --- |
| GPS | NMEA |
| 2nd GPS | NMEA |
| Rate of turn | Analog (20mV/degr isolated) or NMEA |
| Rudder feedback | Analog (20mV/degr isolated) or NMEA |
| Autopilot | Analog (20mV/degr isolated) or NMEA |
| Depth 2x | NMEA |
| Speed | NMEA |
| Course and heading | NMEA |
| AIS | Tx/Rx NMEA V3.X |
| Wind | NMEA |
| Output signals | |
| --- | --- |
| 2nd monitor | SXGA, 15pSubD or DVI |
| Slave radar | Vd, Tr, BP, BZ, Tunelnd |
| Approval | |
| --- | --- |
| Approval nr. | e-01-024 |
Head office
JRC/Alphatron Marine B.V. Schaardijk 23
3063 NH Rotterdam The Netherlands
+31 10 453 4000
info@alphatronmarine.com