It’s module testing time! The OSC5A2B02 Oven Controlled Crystal Oscillator (OCXO) makes a rock steady frequency reference. This one is finely adjustable around 10.000000MHz.
#Electronics #FrequencyReference #OCXO #VCO #HamRadio #AmateurRadio
[11/09/2021]
Our colleagues even recorded a video of the process, and the reasons for this, including VLBI!
#ALMA #ALMAObservatory #Maser #HydrogenMaser #interferometry #heartbeat #FrequencyReference #VLBI
Brains have the alpha waves, computers have their clocks... and radio telescopes have hydrogen masers (essentially, radio-wavelength lasers) to keep both accurate timing and frequency, which are essential for radio inteferometers such as ALMA to work.
This masers live at 5000 m high at the Chajnator plateau, so the work itself is challenging!
https://www.almaobservatory.org/en/announcements/alma-gets-a-new-heartbeat/
#ALMA #ALMAObservatory #Maser #HydrogenMaser #interferometry #heartbeat #FrequencyReference
A 'heart transplant' has just been conducted at 5.000 meters above sea level in the Chajnantor Plateau: the Atacama Large Millimeter/submillimeter Array (ALMA) has successfully installed a new hydrogen maser, which has been operational since January 2024. Funded by the National Radio Astronomy Observatory (NRAO), an ALMA partner on behalf of North America, this upgrade...
i4cy 📌
Dr. Juande Santander-Vela