I had a dream ! dream was to find a multi capacitor (100 nF, 10 nF and 1 µf for example) in a UNIQUE package (SMD will be fine) I have done some search without succes ... nobody knows ? Francois

And again its important to appreciate that any old ferrite bead won't do! There are a large number of different internal geometries and materials in use, and reference to data sheets is

Seasons wotzits, Nadelik Lowen, etc. Has anyone got the paperwork for Chris' Mutek wbfm 10ghz board?. any info appreciated. thanks, Mike G8NXD/M3MSM

OK How does this work ? In the HMC1031 Data sheet, for VCOs with negative tuning slope it says " ... connect the loop filter AC ground to VCC instead of GND." Normally for -Ve slope VCOs you

The LMX2541 synth chip has six separate DC supply feeds into the chip, powering different parts of the Fract-N and PLL circuitry. The data sheet specifies each one being fed via a separate choke

At rallies and roundtables I've often seen good quality TCXOs and OCXOs for sale at frequencies other than 10MHz that don't sell - simply because they are not 10MHz! They are usually significantly

Hi Paul, happy to share the circuit for the 100MHz disciplined OCXO, I am doing a new version of the PCB (hopefully without the layout errors this time!) but it is simple enough to make

Hi Neil Thank you for your reply as this is a hottopic and most do not use a 50 or 100 Mhz reference I was wondering if you couldWrite up the cct and components used so all could benefit from

I tried bashing the boards, and sat them on top of a speaker playing loud music and pure tones. There was definitely a bit of microphony, I wasn't sure what the cause was, but I slathered

Andy, Neil, < Be sure your 47uF ceramic caps are not microphonic or exhibit non-linear V/C characteristics I'd be reasonably relaxed about the C - V characteristics of ceramic capacitors used for

Neil - Be sure your 47uF ceramic caps are not microphonic or exhibit non-linear V/C characteristic This text was sent to me, recently, and will form part of Feb's RC column [on a group posting]

Hello Dave, That's very impressive, particularly for PSK. I looked at the use of QPSK for a data link in the 24GHz area which I was being asked to design some years ago, and came to the conclusion

I use a decent 100MHz OCXO in a thermally isolated enclosure as the clock for my 5355s. I phase lock the OCXO to my 10MHz Rb reference using a very very low bandwidth PLL with an HMC1031.

Hi Brian Thank you for your posting so can I assumewe need to use a 50 mhz reference for lowest phase noise the problem is mostof user have 10 mhz off air reference I assume the reference must

Hi Andy, If you look at my website I have updated the URL and put the schematic onto my site. Saves going to dodgey foreign sites! ;-). I have added a couple of addenda to the article and they are on

Was just about to post a query, then this message appeared. Ref [3] in the Scatterpoint article , the circuit of the black board, points to a URL that requires a login or sign up. WHich I'm not

I echo the sentiment that the ADF5355 (or the ADF4351) should be run at high charge pump current levels to keep the close to carrier PN down. I have also found that the highest possible PD frequency

Apologies - here's the correct link: http://batc.org.uk/forum/viewtopic.php?f=15&t=5288 (unless Yahoo mangles it again...) Dave

Today Noel G8GTZ and I completed a 2-way digital ATV contact on 24 GHz over 29 km. What was notable was that I was using a free-running ADF5355 as my local oscillator. Since an earlier failed

That's very sad. I met Frank at the First Thorn EME conference. I took a photo of his Children sat laughing on a park bench. With Geert PA3CSG's late father. It was the very last photo of him. I