eric @zerophase_elec
hardware engineer / jhu grad student / https://t.co/Qc4UXuC4Ld Maryland Joined November 2010-
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eric retweeted
Literally last night we received a signal from my transmitter, which is installed on the satellite! At the moment, it is QPSK 250kS/s CCSDS (FEC1/2 + RS), but also tested on QPSK 1MS/s!
Literally last night we received a signal from my transmitter, which is installed on the satellite! At the moment, it is QPSK 250kS/s CCSDS (FEC1/2 + RS), but also tested on QPSK 1MS/s! https://t.co/0KWEvrxhZ9
Two down Really could use a polarizing filter for the microscope
Two down Really could use a polarizing filter for the microscope https://t.co/87t6NVNsqQ
No magic smoke! Carrier board went together smoothly. Now need to figure out why the bank power isn’t turning on intermittently (which is enabled by SOM board)… and give it another clean lol
eric retweeted
wear this at the next hardtech meetup
eric retweeted
Lime Microsystems has started a new campaign on CrowdSupply for their new product: a 4-channel up/down converter covering 800MHZ to 10GHZ, based on their LMS8001A RF chipset. It enables coverage from 10MHZ to 10GHZ for LimeSDR family.
Last board arrived from JLCPCB. Here’s the prototype layout
$150 marketplace find. The Metcal hand piece is a little beat, but otherwise everything is functional!
eric retweeted
Just to let you know how sensitive is the signal at 19GHz from PLL when vibration is applied to the reference crystal
eric retweeted
Our 10GHz bandpass filter test results just hit the bull's eye!!
🥳 One more to go!
🥳 One more to go! https://t.co/L7a9buN5xS
eric retweeted
Leo Bodnar has released a new 10MHZ clock source which has an exceptionally low phase noise! I already have an ultra low phase noise OCXO, but this is even better than that 🤯 (And considering that I paid almost the same for that OCXO, I'd say Leo Bodnar's price is good) €1500
BF6: decently fun, cool environment & destruction, but the ttk is WAY too fast. Feels like I’m playing cod
Now we wait for fabs to arrive 🤓
eric retweeted
Everytime I do PCB layout I always think about Gerrymandering. This is basically FPGA power plane layout at this point
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