Product Description
All the technical parameters of
the exciter meet or exceed the requirements of GB*********6
(China Framing Structure, Channel Coding and Modulation for
Digital Terrestrial Television Broadcasting System) and
GY/T**9.*****8 (Technical Specifications and Methods of
Measurement for Digital Terrestrial Television Broadcasting
Transmitters), and supports all the required parameter
configuration and functions. The exciter has the features of high
reliability, high performance and high indexes.
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MainFeatures:
1. Two ASI ports, back up
each other manually or automatically.
2. External frequency source
port, external time source port and local delay adjustment,
supports SFN network function;
3. Supports **0 kinds of channel
modulation modes in China terrestrial digital TV transmitting
standard (GB*********6).
4. Advanced digital self-adapting
correction technique, improve entire parameters of the
exciter.
5. Support all VHF, UHF band
frequency agility.
6. In-build AGC, and reserve whole
chain AGC interface, ensure stable output power under different
work environments.
7. Supports multiple protection
measures of losing lock, overheating and over load, supports
alarming function when abnormal code flow or SFN state is
abnormal, ensure stable work status.
8. Adopts NIOSII in the FPGA as
main control unit, and uses vacuum fluorescent tube display,
powerful functions and friendly HMI.
9. Set RS**2, RS**5 interfaces,
support remote detecting and configuration of the exciter.
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Main Technical
Parameters:
1. Work Frequency: comply with
GB/T *********3
2. Frequency step: 8MHz
3. Frequency accuracy
MFN mode:≤±*0Hz
SFM mode:≤±1Hz
4. Frequency stability (three
months):
Internal reference source:
5X***8
External reference
source:≤1X****0
5. Standard output power:
*0dBm±5dB
6. Output power
stability:≤±0.2dB
7. RF nominal effective band
width: 7.*6MHz
8. Roll off factor: 0.*5
9. Signal shoulder
(fc±4.2MHz):≤ **0dBc
(no correction)
*0. In-band unevenness
(fc±3.**1MHz):±0.5dB
*1. Out-band stray:
Useless transmit power in adjacent
channel is *0dB lower than in-band signal power.
Useless transmit power out of
adjacent channel is *0dB lower than in-band signal power.
*2. Local oscillator phase
noise:
≤≤**5dBc/Hz
| Country: |
China |
| Model No: |
KFSJ-â…¤-885
|
| FOB Price: |
(Negotiable)
Get Latest Price
|
| Place of Origin: |
Chengdu |
| Price for Minimum Order: |
- |
| Minimum Order Quantity: |
1 Unit |
| Packaging Detail: |
carton |
| Delivery Time: |
30 days |
| Supplying Ability: |
30 Unit per Week |
| Payment Type: |
T/T |
| Product Group : |
- |
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