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  Images available: 2075  Images per Page: 24  Showing Page: 170  Order by: Year   Previous Page
ID # Thumbnail Image Description Keywords Image Information
01322

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Saipan Modulator Upgrade Project: January 18, 2007 (Day 4). The modulator cabinet as it looked before remodel, from the rear. See #1323 to view the transformation.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-24 15:51:57
technical equipment


Image Size:   
760 x 950
File Size:  821 k
Original: Digital image
Stored: Saipan, JB
01323

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Saipan Modulator Upgrade Project: January 18, 2007 (Day 4). The transmitter modulation cabinet as it looked after modification.. ready for the new solid-state components to be mounted. See #1314 and 1322 for what it looked like before modification.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-27 16:57:30
technical equipment


Image Size:   
632 x 950
File Size:  529 k
Original: Digital image
Stored: Saipan, JB
01324

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Saipan Modulator Upgrade Project: January 19, 2007 (Day 5). Plumbing for new cooling units.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 10:28:08
technical equipment


Image Size:   
950 x 633
File Size:  559 k
Original: Digital image
Stored: Saipan, JB
01325

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Saipan Modulator Upgrade Project: January 19, 2007 (Day 5). Some project parts had to be constructed/retooled in the shop.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 10:29:09
technical equipment


Image Size:   
950 x 760
File Size:  780 k
Original: Digital image
Stored: Saipan, JB
01326

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Saipan Modulator Upgrade Project: January 20, 2007 (Day 6). Modulator cabinet after remodel, on day 6. #1314 shows original configuration.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 10:24:48
technical equipment


Image Size:   
633 x 950
File Size:  640 k
Original: Digital image
Stored: Saipan, JB
01327

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Saipan Modulator Upgrade Project: January 21, 2007 (Day 7). Work is done to mount the 48 solid-state switches, and make the wiring connections to the switches. In the back on the left, are the new switchable transformers they will help control.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 12:28:54
technical equipment


Image Size:   
950 x 631
File Size:  641 k
Original: Digital image
Stored: Saipan, JB
01328

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Saipan Modulator Upgrade Project: January 22, 2007 (Day 8). At the end of day eight all of the components in the solid-state modulator power supply were in place. Now this area is ready for the interconnection to the modulator cabinet via fiber optic cable and to the control cabinet via copper wire.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 12:39:45
technical equipment


Image Size:   
950 x 760
File Size:  851 k
Original: Digital image
Stored: Saipan, JB
01329

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Saipan Modulator Upgrade Project: January 22, 2007 (Day 8). The new front panel, which is taller, will allow the new frequency generating synthesizers to be mounted in the control cabinet. Installing this taller panel require the actual cutting out of a lower panel, that welded in place, was designed as permanent part of the original cabinet.
1) Before modification.
2) Circuit breakers removed, panel removed.
3) Cutting away lower portion of cabinet.
4) New panel in place
Year:
2007  Country: MNP  Set: 25  Updated: 2007-10-29 12:37:20
technical equipment


Image Size:   
950 x 765
File Size:  904 k
Original: Digital image
Stored: Saipan, JB
01330

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Saipan Modulator Upgrade Project: January 23, 2007 (Day 9). On day 9, fiber optic cable was run today and connected to the solid-state switches in the high-voltage power supply. First, the 96 fiber optic cables had to labeled with numbers.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-04 19:41:36
technical equipment


Image Size:   
950 x 760
File Size:  705 k
Original: Digital image
Stored: Saipan, JB
01331

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Saipan Modulator Upgrade Project: January 23, 2007 (Day 9). Then a pair of the fiber optic cables was connected to each of the 48 solid-state switches.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-04 19:50:08
technical equipment


Image Size:   
950 x 760
File Size:  918 k
Original: Digital image
Stored: Saipan, JB
01332

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Saipan Modulator Upgrade Project: January 22, 2007 (Day 8). Bob Springer, FEBC Saipan director described the inside of the control cabinet "like an explosion in a spaghetti factory."
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-04 19:51:23
technical equipment


Image Size:   
681 x 950
File Size:  848 k
Original: Digital image
Stored: Saipan, JB
01333

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Saipan Modulator Upgrade Project: January 23, 2007 (Day 9). All of the components are in place in the high-voltage power supply area. The pictures show basically the same area, the old and the new. The 3-ton modulation transformer of the old supply is out of sight to the left foreground.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-14 09:15:34
technical equipment


Image Size:   
950 x 430
File Size:  572 k
Original: Digital image
Stored: Saipan, JB
01334

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Saipan Modulator Upgrade Project: January 24, 2007 (Day 10). The machine shop was busy on this day fabricating overhead cable trays to carry the interconnecting wires from the modulator and control cabinets to the power switches and high-voltage supply.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-05 19:50:44
technical equipment


Image Size:   
950 x 697
File Size:  700 k
Original: Digital image
Stored: Saipan, JB
01335

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Saipan Modulator Upgrade Project: January 24, 2007 (Day 10). The ends of the 96 fiber optic cables were connected to the modulator control circuit cards.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-05 19:53:13
technical equipment


Image Size:   
950 x 638
File Size:  669 k
Original: Digital image
Stored: Saipan, JB
01336

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Saipan Modulator Upgrade Project: January 27, 2007 (Day 13). The primary 3 phase 480V AC connections were made. Not small stuff.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-06 19:50:30
technical equipment


Image Size:   
1000 x 518
File Size:  613 k
Original: Digital image
Stored: Saipan, JB
01337

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Saipan Modulator Upgrade Project: January 28, 2007 (Day 14). Wiring modifications are continuing in the transmitter control cabinet. David Creel.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-14 09:18:41
technical equipment


Image Size:   
634 x 950
File Size:  647 k
Original: Digital image
Stored: Saipan, JB
01338

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Saipan Modulator Upgrade Project: January 28, 2007 (Day 14). The transmitter cooling system radiators that are being replaced as part of the project. Today the maintenance staff tore the unit apart for scrap. Here is what the radiator looks like on the inside. It is the result of the interaction of differing metals in the salt air environment of Saipan.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-06 19:55:19
technical equipment


Image Size:   
950 x 760
File Size:  1057 k
Original: Digital image
Stored: Saipan, JB
01339

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Saipan Modulator Upgrade Project: January 29, 2007 (Day 15). On day 15, the safety-grounding switch for the new modulator high-voltage power supply was installed.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 14:03:09
technical equipment


Image Size:   
633 x 950
File Size:  462 k
Original: Digital image
Stored: Saipan, JB
01340

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Saipan Modulator Upgrade Project: January 31, 2007 (Day 17). At 3pm on this day, power was turned on to the transmitter and initial testing officially began.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 14:07:03
technical equipment


Image Size:   
760 x 950
File Size:  461 k
Original: Digital image
Stored: Saipan, JB
01341

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Saipan Modulator Upgrade Project: February 1, 2007 (Day 18). Day 18 began with testing the water-cooling system for the RF power amplifier stage of the transmitter. With power applied to the pump the entire cooling system was checked for leaks. It was good to see water flowing again out of the power amplifier vacuum tube cooling jacket through the Pyrex glass and back into the water reservoir. Because the water flows through components that have 14,000 volts applied to them, the water has to be de-ionized to assure that it is highly resistive and does act like a current conductor.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 14:17:21
technical equipment


Image Size:   
950 x 760
File Size:  468 k
Original: Digital image
Stored: Saipan, JB
01342

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Saipan Modulator Upgrade Project: February 2, 2007 (Day 19). The $4,500.00 frequency generator purchased as required ancillary equipment was installed in the transmitter today.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 14:28:35
technical equipment


Image Size:   
634 x 950
File Size:  385 k
Original: Digital image
Stored: Saipan, JB
01343

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Saipan Modulator Upgrade Project: February 4, 2007 (Day 21). The safety fence around the modulator high voltage supply, which was being constructed in the shop during the previous two weeks, received finishing touches. Painting was done at a later date.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 14:43:59
technical equipment


Image Size:   
634 x 950
File Size:  490 k
Original: Digital image
Stored: Saipan, JB
01344

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Saipan Modulator Upgrade Project: February 7, 2007 (Day 24). David Creel replaces the old panel which contained spaces for twelve meters, with one that holds just ten. The meters for the high power modulator vacuum tubes were no longer needed because of elimination of the tubes. See image #1345 for a view from the front of the transmitter.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 18:36:06
technical equipment


Image Size:   
950 x 760
File Size:  606 k
Original: Digital image
Stored: Saipan, JB
01345

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Saipan Modulator Upgrade Project: February 7, 2007 (Day 24). Front view of the new metering configuration. Saipan Modulator Upgrade Project: February 7, 2007 (Day 24). Two meters less were needed because of the elimination of the power modulator vacuum tubes. See image #1344 for a view from inside the cabinet. Image #1321 shows the old panel.
Year:
2007  Country: MNP  Set: 25  Updated: 2007-11-08 18:41:18
technical equipment


Image Size:   
950 x 760
File Size:  402 k
Original: Digital image
Stored: Saipan, JB


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