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Пікірлер
@alnorman6846 9 күн бұрын
Manhattan technique ??
@vincenzopraturlon6248 29 күн бұрын
looking forward to grab the first zBitx! thank you Ashhar!
@Scott-e8u Ай бұрын
Really nice work my friend!!!!, especially love the old school dials, I'm doing a lot of designing and building my self, believe me, I would absolutely kill to be able to have access to slow motion drives,vernier knobs etc...., absolutely brilliant!!!!, I was only born at the end of 1983, but I was brought up on old school practical wireless and Doug demaw etc...love proper analogue RF!!!, thanks for keeping the homebrew going!!, massive love and respect from the UK -scott M0KJZ
@SeAfasia Ай бұрын
Νice...73
@unixbehr Ай бұрын
farhan can I get your google docs on this? to follow better
@marsidsupan Ай бұрын
please give me the schematic, I want to make it like that
@hughm2615 Ай бұрын
I need a new radio project because most of my radios end up as non functional shelf queens
@StephenCooteNZ Ай бұрын
Thanks. This is good information. Best wishes from New Zealand. ZL3ABX.
@lovelycollection100 Ай бұрын
I have once 40 p same
@kelgiann8258 Ай бұрын
We are so proud about Kostas and his work!!! 👍 Well done! 👏👏👏
@PD7SSBMartin 2 ай бұрын
Nice scheme you could also make a bitx that is for the entire HF and VHF is that reasonable?
@smonair2806 2 ай бұрын
Starling uplink seems to be working.
@courierdog1941 2 ай бұрын
Ashhar, Absolutely correct the IMD is typically developed at an extremely low level most likely at the very first part of the Transmitter driver preamp. This is very common knowledge in the Broadcast Transmitters, Seldom is the IMD product part of the PA Stage.
@unixbehr 2 ай бұрын
need to get the google access to review all it
@DAVIDGREGORYKERR 2 ай бұрын
Have you tried a DBM based on a 74HC4053 and 2x transformers and they will work in both directions.
@soldersmoke 2 ай бұрын
No, I try to avoid ICs.
@RogierYou 2 ай бұрын
DR is doing you good Bill ;-)
@Paul_VK3HN 2 ай бұрын
Dean, if your ATTiny is not returning valid data in an isolated test set up, maybe check data types in script for a data casting error. -1 is all bits set in a signed variable. The I2C address and baud rate must be good otherwise you would get no connection. Other than that do you have a replacement ATTiny? You could flash it with a test script to validate the GPIOs are working. Good luck!
@kk4das122 2 ай бұрын
Thanks Paul. Its not a data type error - at least not in the user code. There may be a problem in either the board manager or the version of the WIRE protocol it uses. There are multiple versions of each an not clear what Farhan used. See the latest blog post for more details including the source code: kk4das.blogspot.com/2024/07/homebrew-sbitrx-rtc-and-power-meter.html
@kk4das122 2 ай бұрын
Turns out it was Wire library. Substituted TinyWire and all is working. Details my blog.
@Paul_VK3HN 2 ай бұрын
@@kk4das122 Champion! Wire comes with the IDE, I can't see how to validate your Wire library version as it does not appear on the Library manager list. Presume you could just update your IDE (and hope that the Wire that comes with is is bug free) but if you are already on current release, best to use a 3rd party lib as you've done, there sure are enough to choose from. The idea of placing an ATTiny on the SWR bridge is neat, most designs bring Vfwd and Vref DC lines from the sampler straight into the MCU, using up two digital IOs. Having the 2 word data come back over I2C is better.
@kk4das122 2 ай бұрын
@@Paul_VK3HN The Wire library is included in the board package - so it is a problem with the AtTinyCore board package. Since the ATTINY is not an official Arduino we rely on third parties to provide the board manager package. I believe I have the lastes version of the board package. In any case the alternate library works so I am going to stop chasing this one. Yes - its a clever design - the ATTINY just handles the ADC and hands off the data when requested.
@andye2005 2 ай бұрын
At-tiny hang a scope on the i2c output and see what it is doing. If you have a scope with an I2C decoder function that makes things much easier . Levels and pull ups would be my first look see, mainly because I've been caught out out so many times. :-) especially on interrupt pins when I should know better. Andy
@edbeckerich3737 2 ай бұрын
I built a W1FB relay TX circuit, it wouldn't work till I reduced the current resistor, to flow more current at key down, and then it started working..
@migalito1955 2 ай бұрын
Cool beans your back. Finished my regen receiver that preceeds the direct conversion receiver, next is making a list of needed parts.
@justinelliott3529 2 ай бұрын
How well does it work
@migalito1955 2 ай бұрын
Surprisingly better than I expected. Once I knew it worked I took out the plastic cube variable capacitors and imstalled aluminum fin type stolen from old radios. I also added fine tuning by placing a small variable in parallel with the gross tuning cap. This turned out to be a hair puller because the receiver crapped out. It turned out the cap had a dead short. Once that was found its back as before. Its not the fanciest design but one that works none the less and easy to explore the signal paths.
@G7VFY 2 ай бұрын
Wireless Telegraphy Experiments Manual Elmer E. Bucher 1920 ebay listing 404923647951
@G7VFY 2 ай бұрын
You should buy, or build a metal detector (Induction pulse) metal detector and go metal detecting. You might find something interesting. That is a location with a lot of history.
@PapasDino 2 ай бұрын
Looking good Bill! 73 - Dino KLØS
@unixbehr 2 ай бұрын
we need more 6m and 2m ssb hardware out there we are working on a 2m/6m radio based on this the issue is the rf ouput for each band but the idea of 2 rf output circuts should clear a issue
@nil7208 2 ай бұрын
Hi, serious question, what will happen to your lab after your time?
@joemitchell5243 2 ай бұрын
Wow, that rocket launch was amazing. I just listened to the podcast where you mentioned this rocket, of course it was 12 years later. This was almost like time travel. The only time I launched a rocket was back in school in the early 1990’s. No camera, and much smaller.
@jeromeGrzelak 2 ай бұрын
QST needs you they r going downhill
@RadioMaker360 2 ай бұрын
I love the direct conversion and it works very well
@trcwm 2 ай бұрын
A digital scope?!? 🤣
@soldersmoke 2 ай бұрын
Uh, yes
@tdumnxy 2 ай бұрын
Great stuff and what a beautiful place to set up shop!
@RogierYou 2 ай бұрын
Portable?
@soldersmoke 2 ай бұрын
@@RogierYou No,not really. But as in CW, slash or slant seems to confuse some ops. On phone this is especially a problem when signals are weak, when there is a language barrier, and when the previous syllable was 7. Portable seems to clarify things. 73 Bill HI7/N2CQR.
@W4BTK 2 ай бұрын
Super cool ❤
@justinelliott3529 3 ай бұрын
How many watts out?
@soldersmoke 2 ай бұрын
I think it is about 10-20 watts outbut I don't have the gear here to measure accurately.
@radiotowers1159 3 ай бұрын
Looking good, I converted my 20m Q AMP years ago to 60m , If I remember I changed the LP filter, been a while
@soldersmoke 2 ай бұрын
Mine has gone through multiple changes of LP filters, and several changes of FETs. I have two IRF510s in there now. I never used the RF sensing T/R circuitry -- real hams do their own T-R switching! 73 Bill
@anandawijesinghe6298 3 ай бұрын
To change frequency use a LC tank circuit and diode varactor capacitor with a 10 turn vernier potentiometer with built in turns counter to tune by changing the reverse bias dc voltage of the varactor diode. Much smaller than a variable air capacitor or a variable permeability tuning coil. Works well for me ! 😇
@eriphoor 3 ай бұрын
Such a hack radio. Seems to perform very well....
@orvillejones1258 3 ай бұрын
Bill, thanks for posting your video, I can clearly see the layout of your regen now. That is what I needed to get started on building my version of this receiver. 73 OM
@G7VFY 3 ай бұрын
Are you going to start portable operating? G7VFY
@jampskan5690 3 ай бұрын
My Grandpa had a S-38 receiver just like that. My brother had it restored from a member of his club. Knowing all of the knowledge that I know now from the SolderSmoke podcast, I may have to inspect his work!
@tcarney57 3 ай бұрын
The S-38E has a sad optimism about it, like a rescue puppy or Charlie Brown's Christmas tree. It knows how close it was to being thrown into outer darkness (the landfill) and its gratitude shows.
@W4BTK 3 ай бұрын
Love the radioshack portable receiver. I have a similar one (DX392) with cassette. Pretty good radio I bought in 93 and still works.
@soldersmoke 2 ай бұрын
I took this one on an official trip to Haiti back in '94. I did a lot of work on the DX390 -- see the blog for details. 73 Bill
@RogierYou 3 ай бұрын
Love an operating station with a view to the horizon where DX is waiting.
@PapasDino 3 ай бұрын
Hey Bill, looking good! Question - what percentage of night time there will allow for sky gazing? And, being so close to the eastern end of the island does KP4 land usually take the brunt of any westward moving big storms and take the "heat" off of the Dominican Republic? Enjoy your time in the southern CP! 73 - Dino KLØS
@williamrmeara2162 3 ай бұрын
Dino: I talked about the astronomy stuff on the blog. As for the hurricanes, direct hits are pretty rare here. PR to the East may help, but I remember when this good fortune was attributed to the supposedly supernatural powers of a certain (now deceased) Dominican President. 73 Bill
@propagating-radio 3 ай бұрын
Fantastic! Thanks for sharing!
@marknesselhaus4376 3 ай бұрын
Very cool station and a big thumbs up for your HW-8. Love the location 🙂 73 de wa4jat
@Scott-e8u 3 ай бұрын
Very, very cool!!!!, I have only been licensed about 11months,(did the foundation intermediate then full within a few weeks of each other, best thing I ever done!!)i love your videos, I'm designing and building all my own gear, I've got a really cool "ammo tin lunch box"to build a portable HF rig in, I'll send you a photo when it's done, anyway thanks for keeping the homebrew art alive and especially for promoting it!!, you're a legend!!73s from the UK -scott M0KJZ
@justinelliott3529 3 ай бұрын
He will write back. He did when I sent him pics of things I built
@PapasDino 3 ай бұрын
Looking good Bill! 73 - Dino KLØS
@RogierYou 3 ай бұрын
Exiting!
@tcarney57 3 ай бұрын
A very cozy yet bright shack. In addition to the Starlink, what other antennas do/will you have on the roof? From that high and open vantage point, I'll bet a mag-loop would work very well on that outside balcony--with a remotely-controlled vacuum capacitor (or even a high-voltage air variable) to tune it. Having to tune it every-few KHz is a PITA, but OTOH it serves as its own (very narrow) BPF. --K7TFC
@IV3GFN 3 ай бұрын
Hi Grayson, I like thermatrons since I was younger from the 60's - 73 de IV3GFN - Pino