50W Liquid cooling TV transmitter
- Brand
- Type
Main features:
*new LDMOS transistor, high linearity*efficient use of simulation software to design cooling system, fully considering the use of high altitude areas
*the transmitter has a built-in high-efficiency switching power supply, which is small in size and easy to install and replace
*dual TS flow input + RF input configuration, no bottleneck in the whole machine
*advanced microcomputer monitoring system
*multiple lightning protection to effectively prevent lightning attack
*Reasonable and compact structure, small size and light weight
*The equipment case adopts full natural heat dissipation mode, assisted by forced air cooling mode, and water circulation pipeline is reserved
Specification
| Parameter |
Symbol |
min value |
Typical value |
max value |
Unit |
|
Input and output frequency range |
FOUT |
470 |
any frequency ponit |
862 |
MHz |
|
Frequency conversion gain flatness @ full band bandwidth |
DGa |
|
1 |
2 |
dB |
|
Frequency conversion gain flatness @ 8MHz bandwidth |
DG8MHz |
|
0.3 |
0.5 |
dB |
|
Noise figure |
Nf |
|
3.0 |
6.0 |
dB |
|
Input signal level |
PIN |
27 |
|
107 |
dBmV |
|
Output power stability (ALC state) |
DPOUT |
|
|
1 |
% |
|
Out of band harmonic signal level (external filter) |
H |
|
|
-61 |
dBc |
|
In band stray signal level |
Spur |
|
|
-46 |
dBc |
|
Input port return loss |
RLIN |
15 |
|
|
dB |
|
Output port return loss |
RLOUT |
17 |
|
|
dB |
|
Average digitaloutput power |
PAVG |
|
47 |
|
dBm |
|
Spectral shoulder width@fcenter±4.2MHz |
Shoulder |
|
- 42 |
|
dB |
|
Single frequency modulation error rate |
MER |
|
38 |
|
dB |
|
Mean time between failures |
MTBF |
45000 |
|
|
hour |
|
Spectrum characteristics |
Comply with the Gy / t220.1-2006.5.9.3 spectrum template |
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|
Whole machine efficiency |
≥17％ |
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|
Networking mode |
Support multi frequency network (MFN) or single frequency network (SFN) networking mode |
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|
Input port impedance / connector |
TS signal 2×ASI (BNC-K, 75 Ω) RF signal 1×RF (F-K, 75 Ω) 10MHz signal BNC-K （50 Ω） 1pps signal BNC-K （50 Ω） Precorrection input BNC-K （50 Ω） |
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|
Output port impedance / connector |
N-K （50 Ω） |
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|
Status detection display |
LCD screen / function key / LED indicator / buzzer |
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|
Remote control and monitoring interface |
RS485 and RJ45, RS485 adopt through wall plug terminal |
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|
Power supply voltage |
AC 90V～264V，45Hz ~60Hz |
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|
Supply voltage connector |
IEC320 |
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|
Cooling and heat dissipation |
Natural heat dissipation, forced air cooling, reserved water circulation pipeline |
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|
Operating temperature range |
-20°C～ +70°C |
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|
Operating relative humidity |
0 ~ 95%, non-condensing |
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|
Storage temperature range |
-55 ~ +85°C |
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|
Storage relative humidity |
0 ~ 95%, non-condensing |
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|
Volume(W´H´D) /Weight |
660×440×360(mm) /45kg |
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