Zavisi i koja mu je modulacija. Ja kada sam pre par godina gledao, upstream mi je bio izmedju 54 i 57 dBmV, qpsk modulacija, i radilo je super. Jeste da je to na samoj granici prihvatljivosti, ali ako ti radi sve ok onda nema razloga da se cimas. Ako budes imao probleme, onda znas do cega je, i zovi tehnicara da dodje da ti sredi to.
Evo da citiram "cika gugleta", cisto da mozes da uporedis:
Downstream (Rx) Receive Power Level:
This is the amount of signal received by the modem from the transmitter in the cable company head-end.
For all modems:
-15 dBmV to +15 dBmV maximum.
-12 dBmV to +12 dBmV recommended.
0 dBmV is the "optimal" level.
Upstream (Tx) Transmit Power (a.k.a. Return Signal) level:
This is the amount of signal transmitted by the modem to reach the receiver in the cable company head-end.
+8 dBmV to +58 dBmV maximum for QPSK. (DOCSIS 1.x)
+8 dBmV to +55 dBmV maximum for 8 QAM and 16 QAM. (DOCSIS 1.x)
+8 dBmV to +54 dBmV maximum for 32 QAM and 64 QAM. (A-TDMA DOCSIS 2.0)
+8 dBmV to +53 dBmV maximum for S-CDMA DOCSIS 2.0 modulation rates.
Recommended upstream signal levels are +35 dBmV to +52 dBmV.
Evo da citiram "cika gugleta", cisto da mozes da uporedis:
Citat:
Downstream (Rx) Receive Power Level:
This is the amount of signal received by the modem from the transmitter in the cable company head-end.
For all modems:
-15 dBmV to +15 dBmV maximum.
-12 dBmV to +12 dBmV recommended.
0 dBmV is the "optimal" level.
Upstream (Tx) Transmit Power (a.k.a. Return Signal) level:
This is the amount of signal transmitted by the modem to reach the receiver in the cable company head-end.
+8 dBmV to +58 dBmV maximum for QPSK. (DOCSIS 1.x)
+8 dBmV to +55 dBmV maximum for 8 QAM and 16 QAM. (DOCSIS 1.x)
+8 dBmV to +54 dBmV maximum for 32 QAM and 64 QAM. (A-TDMA DOCSIS 2.0)
+8 dBmV to +53 dBmV maximum for S-CDMA DOCSIS 2.0 modulation rates.
Recommended upstream signal levels are +35 dBmV to +52 dBmV.
Potpis
Q: Are there really any systems where
void main() doesn't work?
A: It has been reported that programs using void main() can crash.
Q: The book I've been using, _C Programing for the Compleat Idiot_,
always uses void main().
A: Perhaps its author counts himself among the target audience.
void main() doesn't work?
A: It has been reported that programs using void main() can crash.
Q: The book I've been using, _C Programing for the Compleat Idiot_,
always uses void main().
A: Perhaps its author counts himself among the target audience.
