Peter Goossens
@goossens66peter.bsky.social
RF prototyping, design and test equipment. Creator of Gquipment.
www.gquipment.com
www.gquipment.com
Reposted by Peter Goossens
Oh man, wat is dit gênant.
September 28, 2025 at 10:15 AM
Oh man, wat is dit gênant.
Reposted by Peter Goossens
Extreem-rechtse demonstranten in Den Haag roepen “waar is Antifa nou” (video via Telegram)
September 20, 2025 at 3:58 PM
Extreem-rechtse demonstranten in Den Haag roepen “waar is Antifa nou” (video via Telegram)
Reposted by Peter Goossens
What's inside a wideband directional coupler? The lid of the box lifted. A thread🧵..
#RFDesign #KiCad #RFEngineering #gquipment
#RFDesign #KiCad #RFEngineering #gquipment
January 29, 2025 at 12:54 PM
What's inside a wideband directional coupler? The lid of the box lifted. A thread🧵..
#RFDesign #KiCad #RFEngineering #gquipment
#RFDesign #KiCad #RFEngineering #gquipment
Reposted by Peter Goossens
We spraken oa @marleenstikker.bsky.social over de wil van velen om nu eindelijk écht afscheid te nemen van WhatsApp, Insta of X. Stikker is positief: over 5 jaar is big Tech niet meer dominant. Sorry, paywall. Maar wel hier het kader meer de alternatieven www.volkskrant.nl/tech/is-het-...
January 25, 2025 at 10:27 AM
We spraken oa @marleenstikker.bsky.social over de wil van velen om nu eindelijk écht afscheid te nemen van WhatsApp, Insta of X. Stikker is positief: over 5 jaar is big Tech niet meer dominant. Sorry, paywall. Maar wel hier het kader meer de alternatieven www.volkskrant.nl/tech/is-het-...
New: Introducing a 10 MHz - 6000 MHz wide band directional coupler (DIRCPL-BR1-16-10-6000). You can find it in the web shop.
Specs: 2 dB insertion loss, 16 dB coupling, -30 dB directivity, 10 - 6000 MHz
www.gquipment.com/28-rf-direct...
#RFDesign #PCB #KiCad
Specs: 2 dB insertion loss, 16 dB coupling, -30 dB directivity, 10 - 6000 MHz
www.gquipment.com/28-rf-direct...
#RFDesign #PCB #KiCad
January 14, 2025 at 9:54 AM
New: Introducing a 10 MHz - 6000 MHz wide band directional coupler (DIRCPL-BR1-16-10-6000). You can find it in the web shop.
Specs: 2 dB insertion loss, 16 dB coupling, -30 dB directivity, 10 - 6000 MHz
www.gquipment.com/28-rf-direct...
#RFDesign #PCB #KiCad
Specs: 2 dB insertion loss, 16 dB coupling, -30 dB directivity, 10 - 6000 MHz
www.gquipment.com/28-rf-direct...
#RFDesign #PCB #KiCad
January 13, 2025 at 8:08 AM
In my search for an alternative for X I'm pleasantly surprised by LinkedIn. It has a very active RF community that creates a lot of high quality RF content.
January 11, 2025 at 8:00 AM
In my search for an alternative for X I'm pleasantly surprised by LinkedIn. It has a very active RF community that creates a lot of high quality RF content.
Reposted by Peter Goossens
Drop Site News is calling on the US State Dept. to demand immediate information about Dr. Hussam Abu Safiya’s whereabouts and to take action for his release. Please sign the petition urging the U.S. government to secure Dr. Abu Safiya’s safe return.
actionnetwork.org/forms/tell-t...
actionnetwork.org/forms/tell-t...
Tell the State Department: Demand the release of Dr. Hussam Abu Safiya!
Throughout the assault on Gaza, Kamal Adwan Hospital director Hussam Abu Safiya refused to abandon his patients and remained at the hospital through relentless military assaults, including strikes tha...
actionnetwork.org
January 1, 2025 at 9:10 PM
Drop Site News is calling on the US State Dept. to demand immediate information about Dr. Hussam Abu Safiya’s whereabouts and to take action for his release. Please sign the petition urging the U.S. government to secure Dr. Abu Safiya’s safe return.
actionnetwork.org/forms/tell-t...
actionnetwork.org/forms/tell-t...
Reposted by Peter Goossens
Yaaaayyy!! Bluesky just hit 25 MILLION users!! 🎉 🥳 🎊
bsky-users.theo.io
bsky-users.theo.io
December 13, 2024 at 2:53 AM
Yaaaayyy!! Bluesky just hit 25 MILLION users!! 🎉 🥳 🎊
bsky-users.theo.io
bsky-users.theo.io
1/8 How to configure a PLL synthesizer using algorithms that find exact solutions? Here’s a demonstration with the Si5351A PLL.
#gquipment #PLL #RFDesign
#gquipment #PLL #RFDesign
December 4, 2024 at 12:38 PM
1/8 How to configure a PLL synthesizer using algorithms that find exact solutions? Here’s a demonstration with the Si5351A PLL.
#gquipment #PLL #RFDesign
#gquipment #PLL #RFDesign
Reposted by Peter Goossens
"Making Screenshots of Test Equipment Old and New" - A blog post written for an audience of one, so that I don't need to figure over and over again which settings to use to make screenshots of measurements. Maybe one day it will be useful for someone? tomverbeure.github.io/2024/11/29/M...
November 30, 2024 at 4:41 AM
"Making Screenshots of Test Equipment Old and New" - A blog post written for an audience of one, so that I don't need to figure over and over again which settings to use to make screenshots of measurements. Maybe one day it will be useful for someone? tomverbeure.github.io/2024/11/29/M...
1/7. I did some experiments to de-embedding S-parameters to remove the effects of a test fixture using a Octave/Matlab script processing the raw measurement data. This script uses T-parameters to remove the effects of the fixture.
November 26, 2024 at 1:04 PM
1/7. I did some experiments to de-embedding S-parameters to remove the effects of a test fixture using a Octave/Matlab script processing the raw measurement data. This script uses T-parameters to remove the effects of the fixture.
Spurious frequencies. STM32 is controlling a Si5351A PLL in integer mode. Signal is split and watched on an oscilloscope and a spectrum analyser. Look at the differences in spurious frequencies at each step.
November 23, 2024 at 10:59 AM
Spurious frequencies. STM32 is controlling a Si5351A PLL in integer mode. Signal is split and watched on an oscilloscope and a spectrum analyser. Look at the differences in spurious frequencies at each step.
Directional bridge. Above 3 GHz and for directivity < -30 dB, everything matters: position and orientation of resistors, all parasitics, PCB layout, impedance of outer shield (also acting as a transmission line), resonances along that line, and matching of SMA connectors. Your job: balance them all.
November 23, 2024 at 10:02 AM
Directional bridge. Above 3 GHz and for directivity < -30 dB, everything matters: position and orientation of resistors, all parasitics, PCB layout, impedance of outer shield (also acting as a transmission line), resonances along that line, and matching of SMA connectors. Your job: balance them all.
1/3. Created several example PCBs. They all show different solutions for implementing a transmission line with a combination of RF Enclosure Mini, SMA connector type and tline configuration.
#gquipment #RFDesign #KiCad
#gquipment #RFDesign #KiCad
November 22, 2024 at 10:47 AM
1/3. Created several example PCBs. They all show different solutions for implementing a transmission line with a combination of RF Enclosure Mini, SMA connector type and tline configuration.
#gquipment #RFDesign #KiCad
#gquipment #RFDesign #KiCad
Over the next few days I'll be copying some messages from Twitter (X) here. I hope you don't get too bored with content you may have seen before.
November 21, 2024 at 3:22 PM
Over the next few days I'll be copying some messages from Twitter (X) here. I hope you don't get too bored with content you may have seen before.
Web based tool to read S-parameter files and produce a plot file (actually, a PNG). It is a spin-off of my effort to simplify the process of making good looking images after doing some VNA measurements.
gquipment.shinyapps.io/S-Parameter-...
#Sparameters #VNA
gquipment.shinyapps.io/S-Parameter-...
#Sparameters #VNA
November 21, 2024 at 3:18 PM
Web based tool to read S-parameter files and produce a plot file (actually, a PNG). It is a spin-off of my effort to simplify the process of making good looking images after doing some VNA measurements.
gquipment.shinyapps.io/S-Parameter-...
#Sparameters #VNA
gquipment.shinyapps.io/S-Parameter-...
#Sparameters #VNA
November 20, 2024 at 12:59 PM
November 20, 2024 at 12:56 PM
November 20, 2024 at 12:52 PM
Well. This is my first post here. I'm just looking around.
November 18, 2024 at 8:01 PM
Well. This is my first post here. I'm just looking around.