Lynx Electronics Lab
Lynx Electronics Lab
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Digital Electronics Made Simple For Complete Beginners!
Ready to learn about digital electronics? This video breaks down the basics in a simple way for complete beginners. Get started now!
Переглядів: 28

Відео

New Antenna Tuner Circuit Boards Just Arrived!
Переглядів 3407 годин тому
Exciting news! Our new antenna tuner circuit boards have just arrived. Time to build one and see how it works and how easy it is to assemble. Parts used : Switch : www.aliexpress.us/item/2255801050323068.html?spm=a2g0o.order_list.order_list_main.16.1fa21802b4tW1I&gatewayAdapt=glo2usa Torroid : www.aliexpress.us/item/3256806568735993.html?spm=a2g0o.order_list.order_list_main.34.1fa21802b4tW1I&ga...
INA219 Module is it worth using? Let's find out!
Переглядів 54316 годин тому
Curious about the INA219 module? Watch this video to find out if it's worth using! We'll review the features and benefits of the INA219 module to help you decide if it's the right choice for your project.
Understanding Capacitive Reactance in 15 Minutes FAST!
Переглядів 478День тому
Want to understand capacitive reactance quickly? Watch this video to learn all about capacitive reactance in just 15 minutes!
Building the CHEAPEST QRP Antenna Tuner Kit EVER!
Переглядів 1,1 тис.14 днів тому
Looking for the cheapest QRP antenna tuner kit? Look no further! In this video, we'll show you how to build the cheapest QRP antenna tuner kit ever! Amazon Link to Kit : www.amazon.com/dp/B0C9HC2NDQ?ref=ppx_yo2ov_dt_b_fed_asin_title PDF build instructions : www.digitalshack.org/?sdm_process_download=1&download_id=652
Unboxing and Review of Cheap EDUP Wireless HDMI
Переглядів 21714 днів тому
Check out this unboxing and review of the affordable and simple EDUP Wireless HDMI. See if this is the right solution for your streaming needs!
5-Minute Calibration Hack for You Bench Equipment
Переглядів 38621 день тому
Looking to calibrate your bench equipment quickly and easily? Check out this 5-minute calibration hack that will save you time and ensure accurate readings every time!
Building The Perfect Shortwave Radio Calibration System
Переглядів 23921 день тому
Learn how to build the perfect shortwave radio calibration system in this tutorial. Perfect and speed up your radio calibration with this software. Lynx SI5351 Calibration Software Link on Dropbox : www.dropbox.com/scl/fo/zjzbt735x24bdiaiyxkc4/AGEuGxxAUsvB7SFHLV5em3k?rlkey=kyk9ghqxq759pzxcoj9eg1544&st=w2h91e9x&dl=0
Family Time Takes Priority - Back in 2025!
Переглядів 29Місяць тому
Family Time Takes Priority - Back in 2025! Join us as we prioritize family time over everything else in our lives. See you in 2025!
Is This Radio Frequency Mixer the Game Changer We've Been Waiting For?
Переглядів 1,9 тис.Місяць тому
In this video RJ takes a look at the Analog Devices AD831 high performance RF mixer chip. It has great looking specs and a built in Low Noise Amplifier all on one chip. This could be an interesting tech upgrade that brings easy and quality to your next Homebuilt Radio. Let's jump into taking a look by using a cheap AliExpress module that ready to go with an AD831 already loaded and only cost a ...
Let's Build A VFO For the Receiver.
Переглядів 320Місяць тому
Join us as we build a VFO for an easy shortwave receiver in this DIY project. Learn how to create a digital VFO for your shortwave receiver at home! Link to VFO Project : www.instructables.com/Universal-VFO-10-KHz-160-MHz-With-Retro-Analog-Sca/ Link to more advanced VFO Project: github.com/WA2FZW/It-s-Not-Just-Another-Digital-VFO-by-WA2FZW-VK3PE-and-G3ZQC
Check out the LYNX Easy SW Receiver
Переглядів 420Місяць тому
Just a simple video to show off the receive quality on the draft version of the LYNX Easy-SW Receiver. This will be my entry into the Shortwave Receiver Shootout. Let me know what you think.
Capacitors EXPOSED What's Really Happening with DC and AC?
Переглядів 1,1 тис.Місяць тому
In this video, we'll dive into the world of capacitors and explore what's really happening with DC and AC currents. Learn about coupling capacitors and blocking capacitors, are they different?
Avoid This RF Switch Pitfall!
Переглядів 819Місяць тому
Don't fall into this common RF switch pitfall! Learn how to avoid issues digital RF Switches as relay replacements in your radio design projects.
TV Ears Not Working? Here's What to Do
Переглядів 96Місяць тому
If your TV Ears are not working, don't worry! In this video, we'll show you what to do to fix them. From troubleshooting to repairs, we've got you covered.
You Won't Believe What ARTA Software Can Do!
Переглядів 2,6 тис.Місяць тому
You Won't Believe What ARTA Software Can Do!
WARNING Don't Buy ANY USB PD Products Until You See This!
Переглядів 2,4 тис.2 місяці тому
WARNING Don't Buy ANY USB PD Products Until You See This!
Happy Thanksgiving 2024
Переглядів 392 місяці тому
Happy Thanksgiving 2024
DON'T Buy A USB PD Decoy Until You Watch This Video!
Переглядів 1,4 тис.2 місяці тому
DON'T Buy A USB PD Decoy Until You Watch This Video!
Putting the Cheap Frequency Counter To Work!
Переглядів 2302 місяці тому
Putting the Cheap Frequency Counter To Work!
How To Upgrade Your R10 Receiver With A New Crystal Filter?
Переглядів 2222 місяці тому
How To Upgrade Your R10 Receiver With A New Crystal Filter?
CAPTURING VIDEO CONTENT Like a Pro on a Budget!
Переглядів 752 місяці тому
CAPTURING VIDEO CONTENT Like a Pro on a Budget!
Can This Homemade Pirate Radio Actually Work?
Переглядів 5632 місяці тому
Can This Homemade Pirate Radio Actually Work?
I Spent Hours Building a Transistorized Radio Kit and Here's What Happened
Переглядів 1 тис.2 місяці тому
I Spent Hours Building a Transistorized Radio Kit and Here's What Happened
Three Tube Regen Receiver Part III
Переглядів 5282 місяці тому
Three Tube Regen Receiver Part III
Three Tube Regen Receiver Part II
Переглядів 4832 місяці тому
Three Tube Regen Receiver Part II
I Built Another Cheap Shortwave Receiver Kit Part I
Переглядів 6273 місяці тому
I Built Another Cheap Shortwave Receiver Kit Part I
Mounts for New Cameras in the Lab Part II
Переглядів 1023 місяці тому
Mounts for New Cameras in the Lab Part II
How To Design and 3d Printing Camera Mounts for the Lab Part 1
Переглядів 1253 місяці тому
How To Design and 3d Printing Camera Mounts for the Lab Part 1
Want Accurate Readings? You Need to See This AliExpress Frequency Counter Followup
Переглядів 1,2 тис.3 місяці тому
Want Accurate Readings? You Need to See This AliExpress Frequency Counter Followup

КОМЕНТАРІ

  • @RobertMcMullens
    @RobertMcMullens Годину тому

    I built one of these a while back, I tuned each section using a function generator and an oscilloscope. Mine pulls in everything on a 6 foot mag loop with crystal clear CW. Even heard a voice conversation on it from over 70 miles away, I could copy every word. It's not a bad little rig. I suggest keep tinkering with it.

  • @johnrc5847
    @johnrc5847 Годину тому

    Excellent presentation. Looking forward to the rest of the series. 73 John, k0ebc

  • @340dave
    @340dave День тому

    Looking at your board, it looks like the outline for the two tuner poly varicap shafts has them aligned with the switch shaft, probably for aesthetic purposes so leaving their leads a little longer for this and still be functional, unless you're wanting the offsets! Me, I get too picky.. Also will let the drilling of the three holes in the project box easier. Good job!

  • @rrowan327
    @rrowan327 2 дні тому

    Hi RJ, a true Lynx improvement over the previous turner! Since I have never wired up a coil. Will there ballpark lengths of the wire per number of turns with that coil and pcb? I don't know why I would build one besides playing with it and my nanovna. Then again I do have some antennas and two RTL-SDRs laying around, so maybe......... oh no RJ is getting me interested HAHAHA

    • @LynxElectronicsLab
      @LynxElectronicsLab 2 дні тому

      Yes the instructions for the Receiver will have lengths of wire to use as a guide in the instructions. It will be an easy and enjoyable few hour build to a functional receiver. RJ

  • @paulhobbs9454
    @paulhobbs9454 2 дні тому

    Greetings RJ. I have recently came into posession of two of these meters. I can get neither of them to mechanically zero. With the switch off on one of them the needle seems very sensitive to me just touching the lens. Gently turning the adjustment the needle moves very little. I'm puzzled. Thank you for any advice. Paul

    • @LynxElectronicsLab
      @LynxElectronicsLab 2 дні тому

      Greetings, First let me say that the needle zero setting on the meter needle does not move large amounts. If you cannot zero the meter with it off and unplugged from power while standing straight up level. There is either a problem with the movement or, and your other comment leads me this way, your movement plastic has static charge. The plastic face can get charged be just rubbing a rag on it to clean it. This is key for you, if this happens the needle will move around by moving your hand around on the plastic. When this happens you can have trouble physically zeroing the movement as it is being attracted by the static. Try rubbing the plastic with a clothing dryer sheet to see if you can kill the static charge. Let me know how you make out. RJ

    • @paulhobbs9454
      @paulhobbs9454 2 дні тому

      @@LynxElectronicsLab Thank you. That worked perfectly on one but not the other. Both are basically untouched and I have studied your videos and will do so again and procede as you did on yours.

  • @iainmcculloch5807
    @iainmcculloch5807 3 дні тому

    That looks like a huge improvement. Do you have links for the AliExpress parts you used?

    • @LynxElectronicsLab
      @LynxElectronicsLab 2 дні тому

      I think it is also thanks! Yeah sorry should have posted them on the link. Give me a few hours til I’m back at the lab and I will put links in the description of the video for you. I plan to provide the parts with the radio kit at this point. So anyone planning to built a kit don’t order parts as the will come with it. RJ

  • @ei8ki
    @ei8ki 3 дні тому

    Great design... Well done.

  • @johncalvinbrewer
    @johncalvinbrewer 3 дні тому

    Nice! Could you build me one? Love the disassembly capabilities.

    • @LynxElectronicsLab
      @LynxElectronicsLab 3 дні тому

      Thanks! Can’t build you one, but I did put everything you need to know to build your own on the Dropbox link. RJ

  • @jeffschroeder4805
    @jeffschroeder4805 6 днів тому

    Could the readings jumping around be a result of the sampling rate? Most programs actually using the readings would likely incorporate multiple samples and averaging but it is wonderful to have some relatively easy way to monitor voltage and current while developing battery powered devices.

    • @LynxElectronicsLab
      @LynxElectronicsLab 5 днів тому

      Yes averaging would normally be used. That was what my comment that the average looks about right. RJ

  • @lostmyhare
    @lostmyhare 6 днів тому

    Earlier I posted some questions in your isolation transformer video before seeing you opened it up here. Can you check my comments there because my wiring is the same as yours and all my comments still stand. Can you do a similar test to what you did with the triac following power from the outlet to see how the transformer is wired? Unlike the triac, I found red is common which means goes to the switch, and everything else follows all of this would track. Funny thing, this would be in line with the viewer questions regarding the triac wiring! You may be surprised which side of the plug is connected to that mode switch. While the wiring on the power in C14 has the colored lines on the same sides as with the triac, this C14 is mounted rotated 180 degrees (ground up) while the triac had ground down. One additional comment on what you've said here... that's not a ferrite choke as you thought at the front, it's a current sense which feeds into the display unit to provide the measured current which operates similar to a clamp on current meter.

    • @LynxElectronicsLab
      @LynxElectronicsLab 4 дні тому

      I did reply, If you watch the video I did catch the current sense after I said it and there is a caption on screen correcting this during the video as I said it. RJ

    • @lostmyhare
      @lostmyhare 4 дні тому

      @@LynxElectronicsLab Thanks, while I did "watch" there was a lot of multitasking and more listening... it's funny I did look review to find what ferrite you called out, but very quickly went back to trying to track down how the yellow wire is tied into the coil and haven't found it's a CT for 240V which would be expected so still puzzled by that.

    • @lostmyhare
      @lostmyhare 3 дні тому

      @@LynxElectronicsLab New discovery... the AC cable which came with my transformer has L and N crossed at the output! With a good UL cable L goes into the transformer on red and directly to the switch, so all good with a good power cable!! Think it may be worthwhile to check all my power cables!

    • @LynxElectronicsLab
      @LynxElectronicsLab 3 дні тому

      @@lostmyhare WOW! RJ

  • @Tywais
    @Tywais 6 днів тому

    I've designed systems incorporating this and it works quite well. One system (RF power system power supply) I needed to measure 10 amps so pulled the onboard sense resistor and used an external precision current shunt resistor. As for the display bouncing, I use digital filtering for that. Read it x times and average it. Also how accurate is the PS meter you are comparing it to?

    • @LynxElectronicsLab
      @LynxElectronicsLab 5 днів тому

      Correct you would normally do averaging but the demo I was using did not have averaging. RJ

  • @lostmyhare
    @lostmyhare 6 днів тому

    Got a lower power version of the same brand and checking the wiring I'm confused by what I see and wonder if you've noticed. I've seen comments from an Amazon reviewer who saw the same on his 1000VA version like you have. I'm in the US and believe you are too, but please correct me if that's wrong. Looking at the C14 connector on the back (from the wall) would have line(hot) coming in on the left terminal when looking at the terminals on the interior from the front, common would be on the right... they have the right terminal wire connected to the switch which seems backward for US standards where hot passes through switch, because the right terminal is common (the return/ground) connected to the switch. In addition, or maybe as a result of this, the output appears to be wired reverse too, with the mode switch being wired to the right-side terminal (still looking from the front at the inside), but because those outlets are mounted ground up, the right side is still the right side on a connected wire plug and right side of a plug should be the small lead which is line(hot). Have you looked inside, and do you see the same? Should work either way, but I think this needs to be rewired for US standards. I'm now wondering if there's a way to test if a light socket connected to this would energize the screw-in socket rather than the center contact, I need to figure out how to test that.

    • @LynxElectronicsLab
      @LynxElectronicsLab 4 дні тому

      Ok, this is a lot to deal with in a simple comment. So let me start at the end. If you plug a lamp socket into the output of your isolation transformer it will be hot. The center pin in the bottom of the socket will also be hot. You see there is no neutral on the output of the transformer. This is why we use an isolation transformer. It is a 1:1 transformer that provides 120v ac that is not referenced to the input power from the wall. Think of 240 in the U.S. it is two hot legs that reference between each other and is 240v. The output of the transformer is 120v referenced to each other. A neutral is just referenced to earth ground. The hot swings positive and negative around it. So in my opinion you can’t really have the output wired backwards. On the input it is correct that the switch should be wired to interrupt the hot side. But remember that even when wired correctly that means when plugged in there is still a live circuit inside the chassis. Also the switch could be bad. So while I am not saying it’s ok. It is still not safe to work on devices believing you’re safe because the switch is off while the device is plugged in. As a note, for the majority of the U.S. power systems lifetime devices had non polarized plugs and so every time you plugged them in you had a 50/50 chance the switch was on the hot. If yours has the switch wired backwards and it concerns you I would absolutely recommend you swap it if you are comfortable doing so. As far as the hot and neutral connections to the input side of the transformer I do not believe which side they connects matters. So the switch has a correct side and should disconnect the hot. The thing that would worry me more on these is if the ground on the input was not connected to the chassis. This could be deadly to a user that is not working inside the device while plugged in and just using it in normal use. If that is true you are just one chaffed wire or bad connection away from a very bad outcome I do not have mine handy at the moment to look at to see if it the same. I hope this is of some help. RJ

    • @lostmyhare
      @lostmyhare 4 дні тому

      @@LynxElectronicsLab Thanks for the response. My "backwards" was really in reference to which of the terminals in the US would be neutral if we weren't isolated and since there is no "ground" on the secondary this is really a moot point in an isolated circuit. I've been studying this for a couple days and think I finally understand. Because the secondary side of the transformer is just a loop both of the power terminals are the same as everything is basically at the same potential as it cycles. So, connecting a DUT with its power switch is open, unlike an un-isolated circuit where one side is neutral the other hot, here both sides of the open switch, like the outlet terminals, are hot and at the same potential.... I think I got it, but the tying the ground pin to a termina or floating needs more research! Funny timing in thinking about all this as today I came across a Chinese power supply which had the same C14 wiring where in the US neutral goes to the switch and line to the rest of the circuit! In this case, with a standard US outlet, all this knowledge came into action and I would not have even noticed before inspecting this isolation transformer! And I think I'll switch the wires on the input jack just for the consistency of line being gated by the switch.

  • @rrowan327
    @rrowan327 7 днів тому

    Cool little module. Do you have any plans for it? Wondering if it could be used as a remote current monitor for say like some string of rgb leds.

    • @LynxElectronicsLab
      @LynxElectronicsLab 7 днів тому

      Rick, no plans at the moment but it could be used for any DC current monitoring up to 32v and 3.2 amps. So about 100 watts of power. RJ

  • @michelgauvin2473
    @michelgauvin2473 7 днів тому

    Does it also operate at 120Vac 60Hz even though this voltage is not marked on the back of the unit?

    • @LynxElectronicsLab
      @LynxElectronicsLab 7 днів тому

      Make sure you got the U.S. version of it and mine is running on 120V 60Hz. Not sure what mine says on the back as I am not there and it would be difficult to out of the shelf. I believe it did say 120v so I worry you have the non U.S. version if yours does not. RJ

  • @kg4bej
    @kg4bej 7 днів тому

    I just learned something hahaha. I have sent 2 back to HRO a few years back and they replaced them. I thought there was something wrong with them.

  • @lohikarhu734
    @lohikarhu734 8 днів тому

    sub's, simply because you look like a worthwhile contributor to knowledge!

    • @LynxElectronicsLab
      @LynxElectronicsLab 7 днів тому

      WOW!, Thanks! My little channel can use all the Subs and Likes it can get. RJ

  • @donalfinn4205
    @donalfinn4205 9 днів тому

    It took you nearly eight minutes to tell us that you don’t like peak mode. You could have demonstrated that in a minute. My time is scarce.👎

    • @LynxElectronicsLab
      @LynxElectronicsLab 9 днів тому

      No, actually I said I like peak mode and do not like that you cannot have it on and see your SWR. So I guess eight minutes wasn’t enough to explain it to you. Sorry you felt I wasted your time. RJ

    • @donalfinn4205
      @donalfinn4205 9 днів тому

      @ Not at all.

  • @uni-byte
    @uni-byte 9 днів тому

    Nice demo RJ!

    • @LynxElectronicsLab
      @LynxElectronicsLab 9 днів тому

      Thanks Uni! I just watched your 2 hack video 10 minutes ago. Can’t waiting to see the final power supply video, that’s a real nice project and I really like what you have done with it. RJ

  • @AexoeroV
    @AexoeroV 10 днів тому

    Hey, do you know the 2 in 1 soldering stations that are sold on AliExpress under the name JCD 8898? Is they any good?

    • @LynxElectronicsLab
      @LynxElectronicsLab 10 днів тому

      Sorry but I have never used one, so I do not know. Maybe a viewer who has one will comment and give you an answer. RJ

    • @AexoeroV
      @AexoeroV 10 днів тому

      @LynxElectronicsLab thanks for the reply! The cheap thermometer still holds up?

    • @LynxElectronicsLab
      @LynxElectronicsLab 9 днів тому

      @ Great to Hear!

    • @AexoeroV
      @AexoeroV 9 днів тому

      @@LynxElectronicsLab it was a question, how does the FG 100 holding up, still working?

    • @LynxElectronicsLab
      @LynxElectronicsLab 9 днів тому

      Sorry, misread your question. Yes mine is working perfect. RJ

  • @uni-byte
    @uni-byte 11 днів тому

    Cool device!

  • @Steve-GM0HUU
    @Steve-GM0HUU 13 днів тому

    👍Thanks for video. PCB idea for toroid/switch is interesting. Will keep that in mind.

    • @LynxElectronicsLab
      @LynxElectronicsLab 13 днів тому

      Got a proto pcb on the way. Give me a couple weeks and we see if it was a good idea or not. RJ

  • @iainmcculloch5807
    @iainmcculloch5807 13 днів тому

    I'm glad your wife is OK after her close encounter. I just looked on AliExpress, and the antenna tuner kit is even cheaper on there. While I was at it, I looked, and you're right - I couldn't find the parts for less than they're currently charging for the kit (buying the parts separately would cost almost twice as much). Anyway, I look forward to seeing the upgraded version video(s).

    • @LynxElectronicsLab
      @LynxElectronicsLab 13 днів тому

      Thanks, I just completed a proto pcb design and sent it off to pcbway. In a few weeks we will try building it to see how it goes. RJ

  • @rrowan327
    @rrowan327 14 днів тому

    Hey RJ, great job on rescuing your wife. I totally agree that video making is way low on the priority list compare to the family. While the kit did work in the end I have no doubt that you will have a much better setup. I saw an interesting idea of using cat 6 cable (haha, you can't use cat cable outside, sorry I went back to 2008) instead of coaxial cable between the radio and antenna. Of course a pcb had a impedance matching circuit between the two cables requirements. The added befit of one cat 6 cable being used for two different antennas also power leads and switch option. Best wishes, Rick

    • @LynxElectronicsLab
      @LynxElectronicsLab 14 днів тому

      Hi Rick!, Was starting to wonder where you went. Hope you and the family are doing great. I imagine it's pretty cold this time of year in NJ. I’ll have to give that a look. Thanks for the tip! RJ

    • @rrowan327
      @rrowan327 13 днів тому

      @@LynxElectronicsLab I have been around just not my normal talkative self. Its a little be cold at the moment but come Monday and Tuesday only in the high teens before wind chill. I think the south has also been getting some strange weather. Take care Rick

    • @LynxElectronicsLab
      @LynxElectronicsLab 9 днів тому

      Just saw this post. The way UA-cam studio works in normal mode it just shows new post you have not responded to. You have to go into each post to see new post in them once you reply so sometimes I do not catch new comments right away. Hope you guys stayed warm. North of us got record snow last night. RJ

  • @alastairbarkley6572
    @alastairbarkley6572 15 днів тому

    You forgot to mention that the other important function of an isolation transformer is to control electrical noise and prevent it from being fed back into the mains wiring and propagated elsewhere. In the case of some industrial machinery - say, electric motors and speed control - the use of isolation transformers may be obligatory (like it is here in Europe),

  • @notacoolkid12
    @notacoolkid12 15 днів тому

    Is it possible to modify the base station to have a stronger antenna rather than each individual sensor?

    • @LynxElectronicsLab
      @LynxElectronicsLab 15 днів тому

      Please read the previous reply to @originaqua a month ago on this video. He asked the same question. RJ

  • @Travis141123
    @Travis141123 17 днів тому

    Looks good enough for streaming video. What about latency, is it possible to game with it? I would almost bet it would stutter and lag at a decent frame rate.

    • @LynxElectronicsLab
      @LynxElectronicsLab 17 днів тому

      I would not play video games on it. Only expect solid 30 frames a second from it and they is some latency, enough I would not want play COD on it let’s put it that way. Good for viewing movies, UA-cam etc. RJ

  • @mariemccann5895
    @mariemccann5895 18 днів тому

    Come on - compare apple to apples.

  • @t1d100
    @t1d100 18 днів тому

    👍

  • @phillipzx3754
    @phillipzx3754 21 день тому

    Just so you know... If you have a computer in your shack that has Bluetooth and your 710 is plugged in via USB, you can redirect the audio from the 710's (via the USB cable and data output) to a Bluetooth headset. I do this with my FT-991. I'm listening to a local 2-meter NET on my 991 while listening this UA-cam video using a set of ATH-M50x Bluetooth headphones. No adapters needed. Just tell Windows that you want to listen to the USB audio (from the radio) on whatever Bluetooth headset you have paired with your computer. Audio with still come through your 710's speaker(s) but you can just turn the volume down with the front knob. I use the "Level out" setting in the menu to control the output volume feeding the headset. FM, SSB, and AM can be set independently. I need to buy a 710. It would be a perfect rig to go with my (almost) 8 year old FT-991. 😀

  • @mohabatkhanmalak1161
    @mohabatkhanmalak1161 22 дні тому

    Very good detailed work, and that stitching tool for reinforcing the plastic seems to be a good, usefull edition to any electronics restoration.🐞

    • @LynxElectronicsLab
      @LynxElectronicsLab 22 дні тому

      I appreciate it! I'm glad you liked the stitching tool! RJ

  • @johnrc5847
    @johnrc5847 24 дні тому

    Thank you for a great tool and interesting videos. John, k0ebc

  • @M0UAW_IO83
    @M0UAW_IO83 24 дні тому

    I've got a feeling there's something odd about the Si5351 or the library everyo9ne seems to use, I'm pretty sure when I've played with them the error got worse the lower the frequency but I'd really need to find some in my stash of bits and rig them up again to test them at a couple of frequencies

    • @LynxElectronicsLab
      @LynxElectronicsLab 24 дні тому

      Interesting! I have not noticed this in my playing with them. I might need to test this out. RJ

  • @Travis141123
    @Travis141123 24 дні тому

    I use my TinySA to spot/zero beat my Kenwood TS-520 and my various analog shortwaves. I do have a 10 mhz oven-heated reference on my Leader frequency counter that's damn close as well; the display is on it's way out, but it's only a few watts to keep the standard powered up.

    • @LynxElectronicsLab
      @LynxElectronicsLab 24 дні тому

      Sounds like you got it nailed. I have a video comic out showing how I check the instruments in the lab using WWV. RJ

  • @johnnorton6085
    @johnnorton6085 24 дні тому

    I question the use of 40 MHz calibration frequency as most GPS Disciplined Clock Oscillators use 10MHz. How do you ensure the 40MHz reference is accurate? I like your approach otherwise.

    • @LynxElectronicsLab
      @LynxElectronicsLab 24 дні тому

      Excellent question, since my reference is 10mhz, I can be no more accurate than it is. But understanding we only need be within a few hertz’s. As I said in the video,I was being over sensitive on the adjustments as you would not be able to notice this error a hertz or three in the receiver. Using 40mhz is more to span the error out 4x than true accuracy. As far as true accuracy I rely on the calibration of the equipment. When it gets out of the time range like my spectrum analyzer I verify it from time to time to a standard. I have an upcoming video on checking the spectrum analyzer calibration you might find interesting. RJ

    • @johnnorton6085
      @johnnorton6085 24 дні тому

      @@LynxElectronicsLab So your SDG1032x is hooked to a 10MHz reference. Excellent. I use a SDG2042x hooked up to a GPSDO. I have never used the frequency counter I use an HP 53131A instead but I really like the statics mode available on the SDG. Thank you for bringing it to my attention.

    • @LynxElectronicsLab
      @LynxElectronicsLab 23 дні тому

      @@johnnorton6085 No Problem. Happy I was of help! RJ

  • @charlesdorval394
    @charlesdorval394 26 днів тому

    Very interesting, thank you!

  • @charlesdorval394
    @charlesdorval394 26 днів тому

    Your french sounds a f... lot like spanish.

  • @johnnorton6085
    @johnnorton6085 27 днів тому

    Look in the Si5351 library for the calibration sketch.

    • @LynxElectronicsLab
      @LynxElectronicsLab 27 днів тому

      Thanks for the suggestion I had looked at it and found it seemed an inefficient method for someone needing to do a number of them so I wrote my own based on it. I have a video coming out in the next few days to show all this. RJ

  • @stephaniesmith7276
    @stephaniesmith7276 29 днів тому

    You do a great job balancing family and your awesome UA-cam channel :)

  • @joshblades
    @joshblades Місяць тому

    Thanks for creating this video. I've had a alarm system for a while, but not on my external garage door. Despite the range from the garage door to the base station being closer than the farthest entry sensor on my house, it still doesn't report status correctly. The obvious reason being the large metal garage door blocking the signal. I've bought some 20AWG wire and will try this method out, I'm almost certain it'll solve the issue. Thanks again.

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      You’re more than welcome. I hope it does take care of the issue. I’m betting it will. RJ

  • @jheissjr
    @jheissjr Місяць тому

    Do you have a link where you purchased the transformer?

  • @Highlander_UDX498
    @Highlander_UDX498 Місяць тому

    The Sherwood Report stated that the DX-10 was 3rd in receiving and the 710 was 4th. I put both of these radios side by side and the DX-10 was superior…I own both radios so I’m not biased. You are biased against the DX-10….I will be adding my third DX-10 to my alternative shack. I do like the 710’s right click for functions.

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      Thanks for your comments. Here’s a shocker, we are all bias including you. I do love my 710. I tried both and liked both, The size of the 710 for pota, the button layout for my fat fingers and since human ears cannot perceive the difference between the two based on the values from the Sherwood report. I went with the 710, also consider that at the time I purchased mine I paid $800 and the dx10 was $1499 at the same time it will be hard to justify the mistake I made on purchasing the 710. The dx10 is a more feature full radio but it was nothing I would miss. Enjoy the ftdx10’s 73’s. RJ

    • @Highlander_UDX498
      @Highlander_UDX498 Місяць тому

      @ I have exceptional hearing and perhaps my discernment of the differences are noticeable even according to the Sherwood report. Not worth debating..enjoy your radio, wish you many contacts! 73’s

  • @Decki777
    @Decki777 Місяць тому

    What's the difference between medical isolation transformer and this one?

    • @LynxElectronicsLab
      @LynxElectronicsLab 6 днів тому

      Sorry for the delay, For some reason your post was put in the held folder for some reason. UA-cam sometimes does this if the ai thinks there is something bad with it. I just found some a number of post in there. I am not sure to answer your question. I have never had my hands on a medial one. RJ

  • @iainmcculloch5807
    @iainmcculloch5807 Місяць тому

    Hope you and your family have a great Christmas (and an even better Hogmanay!). Thank you for everything you've shared in 2024.

  • @rrowan327
    @rrowan327 Місяць тому

    Merry Christmas and Happy New Year to RJ and family. You don't need me to say this but, Have an Awesome time with your family and savor every minute of it. I'm grateful that I was able to find you online again, it kind of feels like back in the day with Christmas in Shirley and than moving over to the Church of DLA (HAHAHA). Since my mom's name is Shirley I can always remember that first site. Even though I generally do have a hard time remembering peoples names. I hope that Bill and Keith are doing well. I did need some info from DLA so I used the Internet Archive to get it. Take care and GOD Bless, Rick

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      Thank you Rick, You also. I do not know what happened to the site. I turned it over to be keep alive but I guess he changed his mind. RJ

  • @alphabeets
    @alphabeets Місяць тому

    Seems silly to not save and auto load a user’s preference. That’s just lazy programming. Come on. Why make the user jump through a hoop every time. I see no logic to defaulting to a generic profile every time the app is opened.

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      Thanks for your thoughts. Funny you should mention this at this time. I just got an update and it no has the option to auto load the settings. He has done a great job improving the software. The only thing I see missing is it does not save the rotation setting. RJ

  • @alphabeets
    @alphabeets Місяць тому

    I wonder why they didn’t use a tone that changes pitch as it gets closer. It would make the process easier as the user would not have to keep looking at the meter.

    • @alphabeets
      @alphabeets Місяць тому

      It would be a nice mod to add to it… take the voltage going into the meter and make a VCO that uses that voltage to set the pitch.

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      That would be nice. RJ

  • @alphabeets
    @alphabeets Місяць тому

    A super useful tool!

  • @alphabeets
    @alphabeets Місяць тому

    When the supposedly American made Amtech flux comes from China and it looks different- those are two signs of fake counterfeit inferior products… best to buy the flux domestically.

    • @alphabeets
      @alphabeets Місяць тому

      Just think for a minute, how could a dealer in China buy an American made product, Amtech flux, and ship it there to China, then sell it at a profit back into America? Not likely.

    • @LynxElectronicsLab
      @LynxElectronicsLab Місяць тому

      I am sure you are correct. But often that’s not how it works. Often the American company has their product made in China and then have it shipped to USA. China will make more and sell it on the cheap. In this case it’s not real but it works ok for the cheap price I paid. RJ

  • @alphabeets
    @alphabeets Місяць тому

    The big problem, is if China owns the market, what happens if/when China becomes our enemy and we need electronics. We’re screwed. This is why Trump wants to bring manufacturing back home. Tariffs are one way to encourage this but it will likely be painful. And folks will be upset by higher prices, not understanding the complete picture.

  • @alphabeets
    @alphabeets Місяць тому

    This also clarifies why we always see huge caps in power supplies which operate at the low 60hz range, whereas in radio circuits we only see tiny capacitance values in the picofarads.