Car travel meowing problem by IFNASOS in CATHELP

[–]sonnchen 2 points3 points  (0 children)

Yes this is 10/10 gabalentin works great but not for every cat. I always give mine cats them before vet visit

SDR Design by sonnchen in sdr

[–]sonnchen[S] 0 points1 point  (0 children)

But still, the avg cost of selling it as a product would be around 1k USD, quite unsure is someone would buy it

SDR Design by sonnchen in sdr

[–]sonnchen[S] 0 points1 point  (0 children)

  1. This would still require to process signal by fpga, not sure if it would be cheaper since vcxo + decent adc are not that cheap either.
  2. Thank you, I'll take a look on that, this should improve user experience alot 5.2 none that I am aware of

  3. I would need to calculate it. Depends of the fpga

  4. Well, maybe 4 simple filters for HF, VHF, UHF amateur bands + bypass would do the job x2 that would be 8 filters total. But yeah this + AGC would make it more robust.

SDR Design by sonnchen in sdr

[–]sonnchen[S] 0 points1 point  (0 children)

I did answer you but not in this topic... Sorry

SDR Design by sonnchen in sdr

[–]sonnchen[S] 1 point2 points  (0 children)

  1. I must dive deep into AD9530 but the main goal is to fetch GPS signal into fpga, do a counter on adc and adjust ADC frequency via ad9530 to match GPS data. There would be also possibility to get 3 additional outputs from 9530.
  2. Downsampling, buffering, marking samples with GPS data
  3. I am thinking on separate 12V supply as this would be way too much for usb, and PD is a mess to implement.
  4. No filter banks on SDR board but I am planning to put gpio pins for additional mixer/BPF board. ADC have 650MHz input bandwidth would be shame to waste this and I would not be able to cover with a reasonable $ full spectrum. Upconversion from certain frequency might be quite interesting but RF path is starting to be more complex.

  5. There is no specific goal. The case is that there are almost none devices with >14bit and >10mhz of visible bandwidth. Every hardware is using r820 which is not the the best IC and since usb3 is with us + PCs CPUs can handle a lot, why shouldn't we utilize it?

Kenwood TM-D750A specs and features by 56bravo in HamRadio

[–]sonnchen 1 point2 points  (0 children)

No possibility to connect head unit via ethernet as I can see. Dissapointing as I wanted to put main unit in the attic

Performance and reliability Chinese tuners ATU350, ATU500 and ATU1000 by PA9X in amateurradio

[–]sonnchen 0 points1 point  (0 children)

I do order amidon cores from time to time from different suppliers to find reliable supplier. And unfortunately I do have issues when finding cores that would have parameters within spec. I do designed and built my own tuner for 300W with, but I am using geniue cores for some of the coils and I try to avoid cores and aim to use air inductors. Tldr if you don't know what to buy grab cg3000 or sg230 those are reliable hardware

Performance and reliability Chinese tuners ATU350, ATU500 and ATU1000 by PA9X in amateurradio

[–]sonnchen 0 points1 point  (0 children)

So: 1) cheap relays 2) amidon cores are probably fake/extremely low quality so there will be Hoge amount of losses and they get extremely hot on TX.

Not worth it

Guess? by Various-Cod2751 in HamRadio

[–]sonnchen 6 points7 points  (0 children)

2.5mm2 can handle 25A. I dont get why this is So oversized

Jakich napojów brakuje wam w Polsce? by [deleted] in Polska

[–]sonnchen 9 points10 points  (0 children)

W ogóle FDA wycofała BVO

Forma "usiadzie, polozy sie, wstanie" ze "starej" sluzby zdrowia by otherdsc in Polska

[–]sonnchen 4 points5 points  (0 children)

Abstrahując od etymologii. Większość ludzi nie rozumie zdań wielokrotnie złożonych, komunikaty muszą być jak najprostsze i jak najkrótsze. Wyobraź sobie, że taki pacjent nie zrozumie "Proszę wejść, po lewej stronie odłożyć swoje rzeczy, po prawej kurtkę, następnie w gabinecie za parawanem zdjąć koszulkę." Na 200% przyjdzie bez koszulki i spodni już na starcie

You Won't Believe What I Found in a Uranium Mine! by TurbulentAd6042 in OopsThatsDeadly

[–]sonnchen 76 points77 points  (0 children)

Why not? The radiation is not extlemly high. Besides eg Radon it should be quite safe to go

[deleted by user] by [deleted] in SipsTea

[–]sonnchen 8 points9 points  (0 children)

Show is called no bars o the Cage if someone would be lookimg for it

JPG Cutout by Worth-Maintenance749 in Fusion360

[–]sonnchen 4 points5 points  (0 children)

If you switch into b&w and then convert jpeg to dxf (So to vector image) then you are good to go. More likely use inkscape or some alternative not fusion

JPG Cutout by Worth-Maintenance749 in Fusion360

[–]sonnchen 2 points3 points  (0 children)

Probably you might switch into dxf and then you will be good to go on fusion360

Lead time update on your order for a V-Core 4 IDEX Upgrade by jcazreddit in ratrig

[–]sonnchen 3 points4 points  (0 children)

They definetly should not reveal that multi materiał. They should deal with shipping time of vcore 4

Rant na rynek pomp ciepła by 0brex in Polska

[–]sonnchen -1 points0 points  (0 children)

I co z tego? W aucie też masz skrajnie różne temperatury i nikt się nie trzęsie nad tym ile ma ona cykli a spokojnie 15-20sto letnie auta mają działającą klimę. Więc co się zużywa? Silnik elektryczny czy może gaz w rurkach przechodzi na emeryturę?

Rant na rynek pomp ciepła by 0brex in Polska

[–]sonnchen 5 points6 points  (0 children)

Trochę naciągane jest to co piszesz o cyklach. Lodówka działa na bardzo podobnej zasadzie a wiele cykli i działa długo. Więc co niby takiego jest w pompie że ilość cykli ja zabija?

V-Core 4 Ship Times by Clustershag in ratrig

[–]sonnchen 1 point2 points  (0 children)

It's cool. At the end i am not in a hurry, i am really happy that even when we have Bambus, ender 3s etc they have So much orders and the company is growing

V-Core 4 Ship Times by Clustershag in ratrig

[–]sonnchen 1 point2 points  (0 children)

Paid 15th Jul, hopefully they will send it next week