PA1EJO
@pa1ejo.bsky.social
Mostly science and technology on this Bluesky account
https://linktr.ee/PA1EJO
https://linktr.ee/PA1EJO
If we you do for instance two way ranging with this type of clock then this is what you could expect as errors.
November 28, 2025 at 7:44 AM
If we you do for instance two way ranging with this type of clock then this is what you could expect as errors.
Frequency differences when everything has settled
November 28, 2025 at 7:42 AM
Frequency differences when everything has settled
After 3h 21m the Allan deviations look like this
November 28, 2025 at 7:42 AM
After 3h 21m the Allan deviations look like this
Corresponding frequency differences
November 28, 2025 at 4:27 AM
Corresponding frequency differences
Allan deviations between a Rb and an OCXO on my desk
November 28, 2025 at 4:25 AM
Allan deviations between a Rb and an OCXO on my desk
“Ja het zijn drones, we hebben ze gezien, maar geen video of foto bewijs.” Herkennen we deze cartoon nog?
November 24, 2025 at 7:06 PM
“Ja het zijn drones, we hebben ze gezien, maar geen video of foto bewijs.” Herkennen we deze cartoon nog?
M33 Triangulum galaxy with Ha regions accentuated
November 23, 2025 at 5:47 AM
M33 Triangulum galaxy with Ha regions accentuated
It is pretty bright tonight
November 7, 2025 at 11:51 PM
It is pretty bright tonight
60 years ago, there were no computer games, but, there were bimbo-boxes
October 17, 2025 at 9:38 PM
60 years ago, there were no computer games, but, there were bimbo-boxes
Making a low light meter with the TLS237, it is fun.
October 17, 2025 at 9:02 PM
Making a low light meter with the TLS237, it is fun.
There is no bracket available for minipc’s to any of my scopes, so you make something yourself from aluminum and AliXpress parts #astrophotography
October 14, 2025 at 4:57 AM
There is no bracket available for minipc’s to any of my scopes, so you make something yourself from aluminum and AliXpress parts #astrophotography
Drie nieuwe snelwegen in de laatste 10 jaar, de A4 midden Delfland, de Blankenburg tunnel en sinds gisteren de verlengde A16 die op de A13 aansluit. Ik heb ze aangegeven in het kaartje. #vekeer
October 7, 2025 at 4:18 AM
Drie nieuwe snelwegen in de laatste 10 jaar, de A4 midden Delfland, de Blankenburg tunnel en sinds gisteren de verlengde A16 die op de A13 aansluit. Ik heb ze aangegeven in het kaartje. #vekeer
Triangulum Galaxy, mixture of different filters and 2 hour and 15 minutes of exposure time. FRA500 atr2600MC #astrophotography
October 4, 2025 at 10:23 AM
Triangulum Galaxy, mixture of different filters and 2 hour and 15 minutes of exposure time. FRA500 atr2600MC #astrophotography
I’m collecting for autism awareness with this image, if you want to donate then click here:
October 4, 2025 at 10:17 AM
I’m collecting for autism awareness with this image, if you want to donate then click here: