HDO908 Transmitter
The HDO908 downstream transmitter supports frequencies up to 1218 MHz and has one +8/+10/+12 dBm output. HDO908 is a 1310 nm DWDM transmitter for short distances. It supports broadband, narrowcast and broadcast services in a digital format.
Product Specifications
Optical parameters
Light source
Cooled DFB with optical isolator
Peak wavelength
1330.459 nm (225.330 THz)
1329.220 nm (225.540 THz)
1327.249 nm (225.875 THz)
1325.782 nm (226.125 THz)
1323,587 nm (226,500 THz)
1322,828 nm (226,630 THz)
1318,725 nm (227,335 THz)
1317,740 nm (227,505 THz)
1329.220 nm (225.540 THz)
1327.249 nm (225.875 THz)
1325.782 nm (226.125 THz)
1323,587 nm (226,500 THz)
1322,828 nm (226,630 THz)
1318,725 nm (227,335 THz)
1317,740 nm (227,505 THz)
Output power, nominal value
+8 dBm, +10 dBm or +12 dBm
1-ch filter
Pass band fits to laser wavelength
Relative intensity noise
-154 dBc/Hz
OMI per channel
4.5 % for PAL B/G 40 chs
Number of optical ports
1 or 2
RF parameters
RF inputs
Two identical inputs
Frequency range
47…1218 MHz
RF impedance
75 Ω
Input return loss
18 dB
Flatness
±0.4 dB
Automatic power control (APC)
Yes
Laser test point level for 4.5 % OMI
78 dBμV
Input level
77 dBμV
Level adjustment range
10 dB
Equaliser adjustment range
0…6 dB
Isolation between inputs
50 dB
Spectrum analyser module (option)
Measurement range
47…1218 MHz, 0.25 MHz steps
Measurement bandwidth
0.35 MHz
Dynamic range
58…98 dBμV
Measurement accuracy
±1 dB
Noise and distortion performance
Link C/N with 0 dBm to receiver
53.5 dB
CTB
67 dB
CSO
62 dB
General
Power consumption
8.5 W
Supply voltages
25 V / 260 mA
6.3 V / 300 mA
6.3 V / 300 mA
RF connectors
F female
Optical connector
SC/APC, E-2000
Cooling
Field replaceable fan
Dimensions (h x w x d)
2U x 7HP x 380 mm, Occupies 1/12 of HDX002
Weight
1.5 kg
EMC compliance
EN 50083-2
Enclosure classification
IP20
Operating temperature range
0…+45 °C
Storage temperature range
-20…+60 °C
Operating relative humidity
0…85%
