KB7ZUT
@graybeardradio.bsky.social
Radio, radio, radio, radio with a pinch of (you guessed it) more radio.
The story of 1206 SMD parts. My new favorite book from Amazon. Lots of great adventures will start in those pages…
January 17, 2025 at 9:56 PM
The story of 1206 SMD parts. My new favorite book from Amazon. Lots of great adventures will start in those pages…
Franklin Oscillator oscillating. Nice and stable and holding 7.003MHz for a hour. Still needs shielding to prevent stray capacitance (ie my hands) from de-tuning it. #hamradio
January 15, 2025 at 10:33 PM
Franklin Oscillator oscillating. Nice and stable and holding 7.003MHz for a hour. Still needs shielding to prevent stray capacitance (ie my hands) from de-tuning it. #hamradio
Finishing up a 20dB RF amp for the 40m direct conversion receiver. Manhattan never looked so good. #hamradio #buildRFyourself
January 8, 2025 at 2:41 PM
Finishing up a 20dB RF amp for the 40m direct conversion receiver. Manhattan never looked so good. #hamradio #buildRFyourself
Homebrewed Elliptic band-pass filter for 40m. S21(blue trace) S11(yellow trace). Now on to the rest of the direct conversion receiver. #hamradio
January 3, 2025 at 3:06 AM
Homebrewed Elliptic band-pass filter for 40m. S21(blue trace) S11(yellow trace). Now on to the rest of the direct conversion receiver. #hamradio
Local MW Broadcast Station KIVA AM successfully distroying my 40m Homebrew direct conversion receiver's frontend with their monster signal into my vertical antenna. Time for new filter to eliminate them... #hamradio #deathToAM
January 2, 2025 at 4:27 PM
Local MW Broadcast Station KIVA AM successfully distroying my 40m Homebrew direct conversion receiver's frontend with their monster signal into my vertical antenna. Time for new filter to eliminate them... #hamradio #deathToAM
Happy New Year’s Eve everyone. May the fireworks be outside and not from the back of your radio.
December 31, 2024 at 2:46 PM
Happy New Year’s Eve everyone. May the fireworks be outside and not from the back of your radio.
Reposted by KB7ZUT
The Radio Amateurs of Canada (RAC) Winter contest starts at 0000z Dec 28th, Friday evening in the US. Modes are CW and phone, exchange for non-Canadian stations is RS(T) and QSO serial number. Canadian stations send RS(T) and province/territory. Everyone can work everyone.
73 John K3TN
73 John K3TN
December 26, 2024 at 8:58 PM
The Radio Amateurs of Canada (RAC) Winter contest starts at 0000z Dec 28th, Friday evening in the US. Modes are CW and phone, exchange for non-Canadian stations is RS(T) and QSO serial number. Canadian stations send RS(T) and province/territory. Everyone can work everyone.
73 John K3TN
73 John K3TN
Wishing everyone a wonderful Christmas holiday. I hope you find a New radio or RF toy under the tree!
December 24, 2024 at 9:24 PM
Wishing everyone a wonderful Christmas holiday. I hope you find a New radio or RF toy under the tree!
Working on a bandpass filter design that will pass most of HF (2MHz -30MHz). Lots of value tweaking, but it's time to solder something up and see how it works. #HamRadio #AmateurRadio.
December 15, 2024 at 9:39 PM
Working on a bandpass filter design that will pass most of HF (2MHz -30MHz). Lots of value tweaking, but it's time to solder something up and see how it works. #HamRadio #AmateurRadio.
A little Yaesu 817 surgery from the past. See if you can spot the problem... #Hamradio #Amateurradio
December 7, 2024 at 2:14 PM
A little Yaesu 817 surgery from the past. See if you can spot the problem... #Hamradio #Amateurradio
Advanced digital waveform capture
December 6, 2024 at 4:59 AM
Advanced digital waveform capture
My dealer hit me up with a couple of dime bags. Even ships in discreet nondescript envelopes. And it's super pure product.
December 3, 2024 at 3:53 PM
My dealer hit me up with a couple of dime bags. Even ships in discreet nondescript envelopes. And it's super pure product.
Working on my emergency "Bug-Out-Bag"
December 1, 2024 at 3:55 PM
Working on my emergency "Bug-Out-Bag"
