radioberry on 2 layer board

pa3gsb

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Jan 8, 2021, 10:01:42 AM1/8/21

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Hi All

A rebuild of radioberry based on beta4.

73 Johan

PA3GSB

Ujjwal John

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Jan 8, 2021, 1:55:08 PM1/8/21

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Looks Perfect Johan!
The Clock Hack on Beta 3 was long due to be incorporated on PCB, thanks a Ton!!

I have few more ideas specially around protection to RadioBerry GPIO which are directly fed from the FPGA Pins. I will mail you my thought and see if it will be worth implementing them.

73's
Ujjwal John, VU3ECN

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Ujjwal

softerh...@gmail.com

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Jan 9, 2021, 2:42:55 AM1/9/21

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Hi Johan,

Very interesting. How did you manage noise, AD9866 analog ground plane and fixed impedance traces without a ground plane? Did you measure or notice any increase in noise? I always thought you had to stay well grounded when designing PCBs, especially those with RF analog portions.

73,

Steve

kf7o

Radioberry

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Jan 9, 2021, 3:17:29 AM1/9/21

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Hi,

To be clear; this work is not done by me!

i got a mail from Cees PD0SBC ; he found on twitter these pictures.

I had to mentioned that in my message! Sorry for the confusion. I only wanted to share this achievement!

@Steve i have not seen measurements.

73 Johan

PA3GSB

Op zaterdag 9 januari 2021 om 08:42:55 UTC+1 schreef softerh...@gmail.com:

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