Monday, April 6, 2020

Refurbished S-band magnetron tested working Sp-5.8A, Mp-8.0A, Lp-8.6A From S$200.00


https://drive.google.com/uc?export=view&id=12RT1Y5ZRTolpcQmNsrrfHt9rNmcRhIz5

Tested this magnetron on sperry marine S-band downmast transceiver. Found magnetron current good for short pulse, medium pulse and long pulse. Take down the magnetron current value as a gauge to predict the magnetron life span for 3-6 months usage. For ship owner who is budget constraint or vessel intend to sail to scrap yard. This magnetron would serve the purpose. 

Tuesday, March 10, 2020

Kelvin Hughes MDP-A5 SVDR DAU convert to MDD Radar for testing Saab R4 AIS interface purpose.

https://drive.google.com/uc?export=view&id=1w7BNtlxUZ_oS2UJpKpYbOnh6A_C8BSmrhttps://drive.google.com/uc?export=view&id=1BMW4iyQ-pbuM83k9J7wayXqTJI6aon44
Try to load MDD software into VDR system. Start up and found No MTI and system show slave mode. Connect AIS signal and was able to show on screen.
Then swap the Manta vdr interface pcb FSD-A202 with Manta Radar interface pcb FSD-A223, system detected this pcb and change from No MTI to Tx2. Run simulate mode, it shows very good simulated echo with real AIS targets on screen.

Sunday, March 8, 2020

Sperry tabletop ecdis vmft convert to Radar vmft V2.0.5.850


https://drive.google.com/uc?export=view&id=1C947Q_ov3wgPM9iCC7Gve8vz_szyzDoJ
Previously use as vmft ecdis.
Now it can be use as a standalone radar connected as interswitch to other radar. As the specification of the motherboard is relatively low, run the most early software and connect to BME X-band. 3-4Arcs can be shown on display transmit with PM at 12 nm.

Monday, February 17, 2020

Sperry vmft/JRC 9110/Saab R4 AIS/KH VDR/ Furuno GP150/NSR AIS/Sperry dual Mk1 gyro with switch over unit.

https://drive.google.com/uc?export=view&id=1omwB1ufSFTL0X31WvQbErPtvhDjlNXlx
If we can setup a workshop  to simulate a vessel Navigation equipment and allow technicians who are not familiar with marine equipment to hands on and play with it, we can train out a very good technician in very short time. This is what we believe:-)

Wednesday, December 18, 2019

Sperry BME X-band PM unit water ingress

There are few occasions whereby PM unit ingress with water and after a prolong period, the PM unit causes system to behave abnormal due to system 12Vdc has been pull down.
Please see PM unit after dismantle.
https://drive.google.com/uc?export=view&id=10IrKpxpgStovyZ_J6I6666T7KSnWtXUN

Friday, December 6, 2019

Hatteland monitor JH23T12 FUD-AA1-AOAA Reason for failing

Hatteland monitor was one of the type approved marine grade monitor in the market. Why do hatteland monitor fail to work after few years of continuous operation on ship?  One of the main reason was the HRX cable connect between the LCD screen and the control board, insulation breakdown causing shorting internally. Please see cable responsible for causing monitor to fail.
https://drive.google.com/uc?export=view&id=1kC6bsdX3cbtYnA6YTiZgK-o4ANY_xo-Thttps://drive.google.com/uc?export=view&id=1_jsqggmgyhdXqL_w7lsQuAuXr-FkB6JD

Tuesday, August 20, 2019

Dismantle sperry BME motor

Using hand to rotate the motor found not rotating smoothly. Dismantle the motor and found 6 pieces of bearing/gear inside.Top 3 pieces of bearing/gear, bottom 3 pieces of bearing/gear. Please see photos 
below:
 https://drive.google.com/uc?export=view&id=11AcGsstToTkRLR9Zz8qEPvR2gP7o-HxG
https://drive.google.com/uc?export=view&id=1cNCXbSDkcV3_ZRhnbZ9nDoPIUa30VYH7