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.
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.
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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