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VJ2000
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USER MANUAL
Rev. 4.0 - 26/02/01
4. General Description
4.1 Mechanical Description
The VJ2000 is housed in a 19" rack-mountable frame, 20U high, of which 8U 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 VJ2000 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 2KW from an input power of
approx. 60W. The amplifier features motorized anode and load matching across the entire
operational band.
The VJ2000 is available in single phase version or three phase version.
4.3 Controls and Indicators
Three analog meters are present on the front panel; one measures direct and reflected
power output (2 Fig.1), one measures plate and grid currents (4 Fig.1), the last measures
heater and plate voltage (6 Fig.1).
The meter for the measurements of the direct and reflected power has two scales too; one
for 250W f.s. to measure reflected power output, the other for 2.5KW f.s. to measure direct
power output.
The meter for the measurements of the grid and plate currents has two scales too; one for
1A f.s. to measure plate current, the other for 100mA f.s. to measure grid current.
The meter for the measurements of the heater and plate volatge has two scales too; one for
5KV f.s. to measure plate voltage, the other for 10V f.s to measure heater voltage.
For each of these meters there are the relative reading selector
(3,5 and 7 Fig.1).
In central position there are some switches and led indicators that concern to the plate and
Содержание VJ2000
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Страница 21: ...VJ2000 15 44 USER MANUAL Rev 4 0 26 02 01 FIG 1...
Страница 23: ...VJ2000 17 44 USER MANUAL Rev 4 0 26 02 01 FIG 2...
Страница 25: ...VJ2000 19 44 USER MANUAL Rev 4 0 26 02 01 FOTO 1 3 1 2 5 7 11 9 4 6 8 12 10...
Страница 27: ...VJ2000 21 44 USER MANUAL Rev 4 0 26 02 01 FOTO 2 1 2 3 6 5 4...
Страница 29: ...VJ2000 23 44 USER MANUAL Rev 4 0 26 02 01 FOTO 3 10 11 8 3 9 1 2 7 6 5 4...
Страница 43: ...VJ2000 37 44 USER MANUAL Rev 4 0 26 02 01 SETUP 3 FIG 3...
Страница 44: ...VJ2000 38 44 USER MANUAL Rev 4 0 26 02 01 SETUP 4 FIG 4...
Страница 45: ...VJ2000 39 44 USER MANUAL Rev 4 0 26 02 01 SETUP 5 FIG 5...
Страница 46: ...VJ2000 40 44 USER MANUAL Rev 4 0 26 02 01 SETUP 6 FIG 6...
Страница 51: ...VJ2000 Flat Cable 1 2 Appendice Tecnica Rev 1 0 26 02 01...
Страница 53: ...VJ2000 Telemetry Cable 1 2 Appendice Tecnica Rev 1 1 26 02 01...
Страница 55: ...VJ2000 Power Supply 1 ph 1 6 Appendice Tecnica Rev 1 0 26 02 01...
Страница 56: ...VJ2000 2 6 Power Supply 1 ph Technical Appendix Rev 1 0 26 02 01...
Страница 61: ...VJ2000 H T R Card 1 phase 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 62: ...VJ2000 2 4 H T R Card 1 phase Technical Appendix Rev 1 0 26 02 01...
Страница 65: ...VJ2000 R F Block 1 ph 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 69: ...VJ2000 Power Supply 3 ph 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 70: ...VJ2000 2 4 Power Supply 3 ph Technical Appendix Rev 1 0 26 02 01...
Страница 73: ...VJ2000 H T R Card 3 phase 1 2 Appendice Tecnica Rev 1 0 26 02 01...
Страница 75: ...VJ2000 R F Block 3 ph 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 80: ...VJ2000 2 4 Alarms Card Technical Appendix Rev 1 0 26 02 01...
Страница 84: ...VJ2000 2 4 Gride Plate Meter Technical Appendix Rev 1 0 26 02 01...
Страница 88: ...VJ2000 2 4 H V M Voltmeter Technical Appendix Rev 1 0 26 02 01...
Страница 92: ...VJ2000 2 4 Plate V M Card Technical Appendix Rev 1 0 26 02 01...
Страница 96: ...VJ2000 2 4 Low Pass Filter Technical Appendix Rev 1 0 26 02 01...
Страница 99: ...VJ2000 Input Matching Circuit 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 100: ...VJ2000 2 4 Input Matching Circuit Technical Appendix Rev 1 0 26 02 01...
Страница 104: ...VJ2000 2 4 Directional Coupler Technical Appendix Rev 1 0 26 02 01...
Страница 107: ...VJ2000 Telemetry Card opt 1 4 Appendice Tecnica Rev 1 0 26 02 01...
Страница 108: ...VJ2000 2 4 Telemetry Card opt Technical Appendix Rev 1 0 26 02 01...