R&S®NM8500 VHF Transmitter Family for TV
Flexible and efficient: a platform for the future
Specifications
| Analog TV | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Configured as R&S® | NM8503 | NM8504 | NM8508 | NM8516 | |||||
| Number of |
3 | 4 | 8 | 16 | |||||
| Output power (sync peak) 1) 2) | 4.0 kW | 5.0 kW | 10.0 kW | 20.0 kW | |||||
| RF output | EIA 1 5/8" | EIA 3 1/8" | |||||||
| Dimension (H x W x D) |
2200 mm x 600 mm x 1200 mm (86.6 in x 23.6 in x 47.2 in) |
2200 mm x 1200 mm x 1200 mm (86.6 in x 47.2 in x 47.2 in) |
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1) Other output power ratings on request.
2) After the bandpass filter.
| Base unit | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Frequency range | VHF band III | 170 MHz to 254 MHz | |||||||
| Supply voltage | 3 x 400 V AC ± 15%, 47 Hz to 63 Hz three-phase current |
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| Max. installation height | 2000 m above sea level (> 2000 m on request) |
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| Operating temperature range | +1°C to +45°C | ||||||||
| Relative humidity (max.) | 95%, non-condensing | ||||||||
| Immunity1) | to fast transients and burst in line with IEC61000-4-4 | < 4 kV (AC supply) < 1 kV (signal inputs) |
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| to surges in line with IEC61000-4-5 | symmetrical < 2 kV (e.g. L1-L2) unsymmetrical < 4 kV (e.g. L1-N) |
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| Synchronization | |||||||||
| Reference frequency | 10 MHz, 0.1 V to 5 V (VPP) or TTL, BNC | ||||||||
| Reference pulse | 1 Hz, TTL, BNC | ||||||||
| Operation | |||||||||
| Display, keypad and status LEDs | local operation and display | ||||||||
| Ethernet interface, RJ-45 | convenient operation, local or remote, via standard web browser |
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| optional | network management interface via SNMP | ||||||||
| Parallel remote-control interface | optional | floating contacts for messages and commands | |||||||
| Analog TV | |||||||||
| TV standards | B/G, D/K, M, M1, N, I, I1 | ||||||||
| Color transmission | PAL, NTSC, SECAM | ||||||||
| Audio transmission | dual-sound coding in line with IRT or FM single sound and NICAM728 (-13 dB/-20 dB) or FM single sound (-10 dB) |
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| Inputs | 2 x video (BNC, 75 Ω), 2 x audio (XLR, 3-pin) | ||||||||
1) With built-in AC supply overvoltage protection; more stringent requirements must be covered by additional measures installed on-site.
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 transmitter may only be operated with suitable filters at the RF output.
