Hi guys!
I have little problems.
We installed 3 arric c3 few days ago and i got that problem if is put the cmts US to ATDMA and modulation profile 27 (qam32) then the modems suck at init(rc) and not getting dhcp. If i put it back to modulation profile 21 (qpsk) works perfect.
what can i do?
What SNR do you have on the affected upstreams while running in QPSK mode? What model modems are you using in the field?
jilla200 helpme on CNR
I've always found the following works best
snr 18 and higher qpsk
snr 21 and higher 16Qam
snr 25 and higher 32Qam
snr 28 and higher 64Qam