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VJ1000HP
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USER MANUAL
Rev. 4.0 - 26/02/01
4. General Description
4.1
Mechanical Description
The VJ1000HP is housed in a 19" rack-mountable frame, 14U high, of which 4U are
free and may be used for an exciter, a receiver or other equipment.
All controls and switches are situated on the front panel together with two analog meters.
There are no connectors on the rear panel.
Both the cooling air inlet complete with fan and filter, and the power cable entry hole may be
found on this panel.
A flue may be found on the top of the unit for the expulsion of hot air used for coooling the
unit, together with the RF output connector (to be connected to the antenna).
4.2
Electrical Description
The VJ1000HP is a tube amplifier with an earthed grid allowing a wide-band input (no
calibration across the band) from 87.5 to 108MHz.
This amplifier is able to generate an output power of over 1KW from an input power of
approx. 25W.
The amplifier features motorized anode and load matching across the entire operational
band.
The VJ1000HP is available in single phase version.
4.3
Controls and Indicators
Two analog meters are present on the front panel; one measures direct power output
and reflected power output (1 Fig.1), the other measures plate and grid currents (3 Fig.1).
The output power meter has only one scale 1KW f.s.,both for the measurement of the direct
power output and for reflected power output.
The meter for the measurements of the grid and plate currents has two scales too; one for
1A f.s.for the measurement of the grid current and for 100mA for the grid current.
For each of these meters there are the relative reading selector
(2 and 4 Fig.1).
In central position there are some switches and led indicators that concern to the plate and
load tuning: the two led indicators signal respectively the stop for the plate tuning at 87.5
MHz (6 Fig.1) and at 108 MHz (8 Fig.1), while the three selectorsare used rispectively for to
enable the engines of tuning (5 Fig.1), for the plate tuning (7 Fig.1) and for the load tuning (9
Fig.1).
Then there are three led indicators that signal alarms: for an excess of R.O.S. (10 Fig.1), for
insufficient fan pressure (11 Fig.1) and for an excess of grid current (12 Fig.1).
Содержание VJ1000HP
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Страница 24: ...VJ1000HP 18 40 USER MANUAL Rev 4 0 26 02 01 PHOTO 1 3 1 2 5 7 11 9 4 6 8 12 10...
Страница 26: ...VJ1000HP 20 40 USER MANUAL Rev 4 0 26 02 01 PHOTO 2 1 2 3 4 5 6...
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Страница 40: ...VJ1000HP 34 40 USER MANUAL Rev 4 0 26 02 01 SETUP 1 FIG 3...
Страница 41: ...VJ1000HP 35 40 USER MANUAL Rev 4 0 26 02 01 SETUP 2 FIG 4...
Страница 42: ...VJ1000HP 36 40 USER MANUAL Rev 4 0 26 02 01 SETUP 3 FIG 5...
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Страница 47: ...VJ1000HP Flat Cable 1 2 Appendice Tecnica Rev 1 0 26 02 01...
Страница 49: ...VJ1000HP Telemetry Cable 1 2 Appendice Tecnica Rev 1 1 26 02 01...
Страница 51: ...VJ1000HP Power Supply 1 4 Appendice Tecnica Rev 1 0 25 05 02...
Страница 52: ...VJ1000HP 2 4 Power Supply Technical Appendix Rev 1 1 20 05 02...
Страница 55: ...VJ1000HP H T Rectifier Board 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 56: ...VJ1000HP 2 4 H T Rectifier Board Technical Appendix Rev 1 0 26 02 01...
Страница 59: ...VJ1000HP R F Block 1 ph 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 68: ...VJ1000HP 2 4 Grid Plate Meter B Technical Appendix Rev 1 0 26 02 01...
Страница 71: ...VJ1000HP Low Pass Filter 1 4 Appendice Tecnica Rev 1 0 26 02 01 C1 L1 C2 L2 C3 L3 C4 C5 L4 PHOTO 5 FOTO 5...
Страница 72: ...VJ1000HP 2 4 Low Pass Filter Technical Appendix Rev 1 0 26 02 01...
Страница 75: ...VJ1000HP Input Matching Circuit 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 76: ...VJ1000HP 2 4 Input Matching Circuit Technical Appendix Rev 1 0 26 02 01...
Страница 80: ...VJ1000HP 2 4 Directional Coupler Technical Appendix Rev 1 0 26 02 01...
Страница 83: ...VJ1000HP Telemetry Card opt 1 4 Appendice Tecnica Rev 1 0 26 02 01...