Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
RF transmitter and receiver selection - RF Cafe Forums
RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media
platforms dominating public commenting venues. RF Cafe Forums began sometime around
August of 2003 and was quite well-attended for many years. By 2010, Facebook and
Twitter were overwhelmingly dominating online personal interaction, and RF Cafe
Forums activity dropped off precipitously. If the folks at
phpBB would release a version with integrated
sign-in from the major social media platforms, I would resurrect the RF Cafe Forums,
but until then it is probably not worth the effort. Regardless, there are still
lots of great posts in the archive that ware worth looking at.
Below are the old forum threads, including responses to the original posts.
|-- Amateur Radio
Gripes & Humor
-- CAE, CAD, &
Test & Measurement
Post subject: RF transmitter and receiver selection Posted:
Wed Oct 14, 2009 12:13 am
Joined: Tue Oct
13, 2009 11:45 pm
Hi there, First of all I applogize
if I've posted this in the wrong index.
I'm brand new to the
world of RF and I'm attempting a design project I've had in my head
for a while now. I'm getting overwhelmed while trying to source/specify
the correct receiver/transmitter combo for the job.
This is a
household application (not just a garage door opener, need range in
the entire house/multi levels). Ridiculously low data rate needed.
What frequency range should I be looking at? What type of modulation
scheme is recommended? Are there household frequency ranges?
I'm looking for an "off the shelf", ie. digikey, product that's cheap,
SMALL, and user friendly. Something that would work with a small antenna
or PCB antenna would be good too. Any suggestions? Or any features I
should be considering and have not listed here?
A friend suggested
ZigBee but that can be costly.
Basically I have no idea where
to begin designing this RF link and would love any bits of info you
have to share.