Breaking News
Comments
Newest First | Oldest First | Threaded View
banibani
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
banibani   4/25/2012 4:19:50 PM
NO RATINGS
plz help me by giving me the formula of 16-APSK bit error rate or symbol error rate. i need only the equation of APSK bit error rate or symbol error rate.

old account Frank Eory
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
old account Frank Eory   9/16/2011 10:13:45 PM
NO RATINGS
The absolute most robust (error-free) settings would be QPSK, rate 1/2 FEC and 1/4 guard interval -- but that might not give you enough Mbps data capacity for what you're doing. Step one is figure out the data rate you need to transmit. Step two, dial in the most robust parameters that are just enough to meet that data rate. Step three, cross your fingers and hope there is enough signal to noise ratio for the receiver to catch all the data with an extremely low bit error rate.

dangermouse
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
dangermouse   9/16/2011 9:11:37 PM
NO RATINGS
So if I'm setting up a RF Central Microwave system for a reality TV show and my options are QPSK, 16QAM, or 64QAM. What should I set the transmitter to, to obtain the best quality in the microwave monitor/receiver? And does anyone know about the FEC: 1/2 2/3 3/4 5/6 7/8 Guard interval: 1/32 1/16 1/8 1/4 What are my optimum settings? PLEASE HELP

DerekJC
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
DerekJC   9/4/2009 10:18:22 AM
NO RATINGS
Good article. However, it would be useful to include some constellation plots.

tamdtvt
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
tamdtvt   5/12/2009 5:08:23 PM
NO RATINGS
please give me sourse code ??

wassouf_salahat
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
wassouf_salahat   12/22/2008 10:51:18 PM
NO RATINGS
thatsd great keep going:)



Top Comments of the Week
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Fist Bumps & the Zombie Apocalypse
Max Maxfield
25 comments
Are you concerned about the possibility of a Zombie Apocalypse or do you scoff at the thought of such an eventuality? If the latter, would you be surprised to hear that the US military has ...

Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
8 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
41 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
151 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

Flash Poll
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)