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...
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My Hobby Website:
Good LNA choice - 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: Good LNA choice Posted: Thu Nov 27, 2008 10:20
Joined: Mon Jul 18, 2005 12:55 pm
I am looking for a good LNA ( low NF, high
IP3...) for VHF and UHF receiver design.Anybody has experience or knows
a good one?
Is possible to improve the input return loss of
LNA with external component structure?
If you have to choose
for a new design double conversion receiver or direct conversion receiver
which one you perform?
Post subject: Posted: Mon Dec 01, 2008 7:25 pm
Joined: Tue Jul 08, 2008 7:15 pm
I have had good luck with Avago MGA-62563.
It has .9dB NF, 33dBm OIP3, 22dB gain at 500 MHz. It also has current
adjustment (via resistor value) to optimize for desired performance.
- Mark -
Post subject: Re: Good LNA choicePosted: Thu May 07, 2009 5:57 am
Joined: Thu May 07, 2009 5:47 am
Try the Amplifier search on http://www.everythingrf.com
enter the specs and click on search. It searches components from over
You can specify the NF and Gain.