R&S®NA8500 DAB/T-DMB Transmitter Family
Liquid cooled VHF transmitters
Specifications
| DAB(+), T-DMB | |||||||||
| Configured as |
R&S®
NA8502 |
R&S®
NA8503 |
R&S®
NA8504 |
R&S®
NA8505 |
R&S®
NA8506 |
R&S®
NA8508 |
R&S®
NA8510 |
R&S®
NA8512 |
R&S®
NA8516 |
| Number of amplifiers |
2
|
3
|
4
|
5
|
6
|
8
|
10
|
12
|
16
|
| Output power (rms)1) |
1.0 kW
|
1.6 kW
|
2.1 kW
|
2.6 kW
|
3.1 kW
|
4.1 kW
|
5.1 kW
|
6.0 kW
|
8.0 kW
|
| RF connector |
EIA 1 5/8"
|
EIA 3 1/8"
|
|||||||
| Dimensions in mm (H x W x D) | 2200 x 600 x 1200 | 2200 x 1200 x 1200 | |||||||
1) Output power before band-pass filter, other power ratings on request.
| Frequency range | 170 MHz to 254 MHz |
| Shoulder attenuation at nominal power | 35 dB, typ. 37 dB |
| Supply voltage | 3 x 400 VAC ± 15%, 47 Hz to 63 Hz |
| Max. installation height | 2000 m above sea level (> 2000 m on request) |
| Operating temperature range | +1 °C to +45 °C |
| Relative humidity (max.) | 95%, non condensing |
| Synchronization | |
| Reference frequency | 10 MHz, 0.1 V to 5 V (Vpp) or TTL, BNC |
| Reference pulse | 1 MHz, TTL, BNC |
| Operation | |
| Display, keypad and status LEDs | Local operation and display |
| Ethernet interface, RJ-45 | Convenient local or remote control via standard web browser |
| Network management interface via SNMP, optional | |
| Parallel interface | Floating contacts for messages and commands, optional |
| DAB-specific parameters | in line with EN300401, EN302077-2, EN300799 |
| Supported standards | DAB, DAB+, T-DMB |
| DAB modes | I, II, III, IV |
| MER | ≥ 30 dB, typ. 33 dB |
| Delay compensation (static and dynamic) | max. 1 s, step size 61 ns (time stamp level 5) |
| Inputs | 2 x ETI (NI, G.703/NA, G.704), automatic detection; seamless switchover, 75 Ω BNC female or >10 kΩ BNC female (high-impedance), switchable |
Caution: To comply with the applicable standards and limit values for the suppression of out-of-band emissions (and in the case of digital standards, also for maintaining the required shoulder distance), the transposer may only be operated with suitable filters at the RF output.
