| base unit |
| supply voltage |
|
3 × 400 v ac ± 15 %, 47 hz to 63 hz three-phase current |
| max. installation altitude |
|
2000 m above sea level
(> 2000 m on request) |
| operating temperature range |
|
1 °c to 45 °c |
| relative humidity (max.) |
|
95 %, non-condensing |
|
immunity 1)
|
| |
to fast transients and bursts in line with iec 61000-4-4 |
< 4 kv (ac supply),
< 1 kv (signal inputs) |
| |
to surges in line with iec 61000-4-5 |
balanced < 2 kv (e.g. l1-l2),
unbalanced < 4 kv (e.g. l1-n) |
|
dab parameters
|
| in line with en 300401, en 302077-2, en 300799 |
| frequency range |
|
vhf band iii, 170 mhz to 254 mhz |
| supported standards |
|
dab, dab , t-dmb |
| dab modes |
|
i, ii, iii, iv |
| mer |
|
≥ 30 db (typ. 33 db) |
| delay compensation (static and dynamic) |
time stamp level 5 |
max. 1 s, step size 61 ns |
| signal input |
|
2 × eti (ni, g.703/na, g.704), automatic detection; seamless switchover, 75 ω bnc female or >10 kω bnc female (high-impedance), switchable |
| gps antenna input |
optional |
n female |
| external reference clock |
|
1 hz (1 pps) ttl, bnc; 10 mhz, 0.1 v to 5 v, bnc |
|
operation
|
| display, keypad and status leds |
|
local operation and display |
| ethernet interface, rj-45 |
|
convenient operation, local or remote, via standard web browser |
| |
optional |
network management interface via snmp |
| parallel remote-control interface |
optional |
floating contacts for messages and commands |
1) with built-in line-side 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 also for maintaining the required shoulder distance), the transmitter may only be operated with suitable filters at the rf output.