Description
The equipment is composed of
digital TV exciters, intelligent monitoring system, synthesizers,
power amplifiers, filters, directional couplers, switching power
supplies, lightning protection systems. Each unit is independent,
high modularization, nice appearance, easy operation and
maintenance.
MainFeatures:
1. Supports MFN and SFN network
modes, SFN mode complies with GY/T **9.*****8.
2. All-solid-state with
modularization structure.
3. Dual exciter systems, the
active and reserve exciter can be switched manually or
automatically. Keep consistent work state when
switching.
4. Adopts advanced self-adapting
pre-distortion correction technique, big correction value, improved
whole set parameters and efficiency.
5. Adopts advanced LDMOS as
power amplify tube, better index, higher efficiency and smaller
bulk.
6. Independent R&D cross
coupling *-cavity filter, the output spectrum meets China
standard.
7. Whole set has multiple
protection measures of losing lock, overheating, stationary wave,
inter lock and overloading, to ensure stable work
status.
8. Local/remote monitoring, time
switching, supports unattended operation.
9. Embedded microcomputer
monitor system, large color LCD touch screen, to ensure real-time
monitoring of the transmitter.
*0. RS**5 interface, supports
remote metering and remote control.
*1. Optional wind cooling or
water-cooling, for different station requirements.
Main Technical
Parameters:
1. Output power: *0W, **0W,
**0W, **0W, **0W, 1KW, 2KW, 3KW
2. Work Frequency: any channel
within UHF TV wave band.
3. Minimum frequency step:
1Hz
4. Frequency stability (three
months):
Internal reference source:≤5X***8
External reference source:≤1X****0
5. Frequency
accuracy
MFN
mode:±*0Hz
SFM
mode:±0.*5Hz
6. Local oscillator phase
noise:
＜＜**5dBc/Hz
