Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Cafe Press

Innovative Power Products Passive RF Products - RF Cafe

Anritsu Test Equipment - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

everythingRF RF & Microwave Parts Database (h1)

Recommendations on low phase noise synthesizer - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

Below are the old forum threads, including responses to the original posts.

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

NJKirchner
 Post subject: Recommendations on low phase noise synthesizer
Posted: Mon Dec 28, 2009 8:58 pm 
 
Captain
User avatar

Joined: Mon Dec 28, 2009 8:27 pm
Posts: 5
I'm looking around for recommendations on a basic CW functionality, extremely low phase noise synthesizer.

The Holzworth HS1001C is almost a perfect fit but alternative recommendations are what I'm looking to the RF Cafe brain trust for. :study:
http://www.holzworth.com/synthesizers.htm

The Holzworth fits the ticket due to it's outstanding phase noise, compact nature and software driven interface.
-120dBc/Hz @ 1G @10k offset or better is what I'm looking for.
Frequency ranges 10M -1G

So.... any recommendations?

-Norm Kirchner
RF Systems Engineer
National Instruments


 
   
 
d_erickson
 Post subject: Re: Recommendations on low phase noise synthesizer
Posted: Thu Dec 31, 2009 2:26 pm 
 
Lieutenant

Joined: Thu Dec 31, 2009 2:23 pm
Posts: 1
How about the Agilent E8663D-UNX.
-130 dBc/Hz @ 1 GHz, 10 KHz offset


 
   
 
NJKirchner
 Post subject: Re: Recommendations on low phase noise synthesizer
Posted: Thu Jan 07, 2010 11:30 am 
 
Captain
User avatar

Joined: Mon Dec 28, 2009 8:27 pm
Posts: 5
d_erickson wrote:
How about the Agilent E8663D-UNX.
-130 dBc/Hz @ 1 GHz, 10 KHz offset


I would call that the definition of overkill to the extreme.

Any other takers?


 
   
 
windfreak
 Post subject: Re: Recommendations on low phase noise synthesizer
Posted: Tue Jan 12, 2010 7:54 pm 
 
Lieutenant

Joined: Tue Jan 12, 2010 7:47 pm
Posts: 2
This has a phase noise of better than 0.4 degrees integrated from 100Hz to 1MHz. A very rough rule of thumb says that you can use that for a phase modulation with greater than 10 times that angle (4 degrees). Its very cheap: $250.
http://www.windfreak.net/Tech.htm


 
   
 
NJKirchner
 Post subject: Re: Recommendations on low phase noise synthesizer
Posted: Tue Jan 12, 2010 8:16 pm 
 
Captain
User avatar

Joined: Mon Dec 28, 2009 8:27 pm
Posts: 5
Windfreak,

Thanks for the thought, but that device doesn't hit either the frequency range or the phase noise requirements we're looking for.
The VCO on that part has a 10k SSB phase noise of -89dBC at 2.2GHz that's worlds and worlds away from the -120 I'm on the hunt for.

To clarify what I'm trying to do a little I'll give some more detail.

Currently our PXI-5663 has pretty good phase noise performance by taking advantage of the PXI-5652. The 5663 is actually 3 different PXI modules cabled together (LO PXI-5662, Downconverter PXI-5601, IF Digitizer PXI-5622).

Because of it's modular nature, we can substitute our LO with a different LO with even better phase noise performance when the measurements call for it. Just one of those 'Damn, that's sweet!' kind of capabilities you get with a Modular Instrument approach to RF test.




Posted  11/12/2012
everythingRF RF & Microwave Parts Database (h1)
Rigol DHO1000 Oscilloscope - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products