21st Century Transceiver Design: The K4 High Performance Direct Sampling SDR

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  • Опубліковано 12 вер 2024
  • Eric, WA6HHQ, presentation at the QSO Today Ham Expo 2020.

КОМЕНТАРІ • 69

  • @dansloss2566
    @dansloss2566 4 роки тому +1

    Very informative and professional presentation. Nice to have a intro directly from an articulate and knowledgeable engineer. P.S. love my K3S.

  • @HamRadioLiveShow
    @HamRadioLiveShow 3 роки тому

    Great job on this Eric. I’m thrilled to have the opportunity soon. All the best to you and everyone there.

  • @user-wu9up8xv3e
    @user-wu9up8xv3e 3 роки тому +6

    Eric maybe it's time to announce the first shipment, no? In my opinion, everyone is already tired of waiting.

    • @ronm6359
      @ronm6359 3 роки тому

      Everyone is tired of these silly lockdowns

    • @user-wu9up8xv3e
      @user-wu9up8xv3e 3 роки тому

      Fires in LA, epidemics and so on, what else will happen ...? A simple question, where are those buyers who got their radio? No reviews, no videos from real customer. Just words, fantastic, super, wow wow fantastic... NO FACTS, NO ELECTRICAL MEASUREMENTS, NOTHING

    • @user-wu9up8xv3e
      @user-wu9up8xv3e 3 роки тому

      More than a two years of expectations! It looks like a scam, you should be happy with super radio words. Gibberish

    • @markvolstad9380
      @markvolstad9380 3 роки тому

      @@user-wu9up8xv3e A simple answer: Reviews have now started appearing on eHam.

  • @BadHorsie2
    @BadHorsie2 4 роки тому +2

    Beautiful peace of craftsmanship. One day I will own you!! You knocked this one out of the park!! 73 de KG5CFR

  • @AlanMuldawer
    @AlanMuldawer 4 роки тому +5

    I have a K3 and LOVE IT, but this K4 looks mighty good and very tempting! 73 Alan N3ALN

    • @ronm6359
      @ronm6359 3 роки тому +1

      Same here. 73 Ron N0SL

  • @michaelk2045
    @michaelk2045 4 роки тому +7

    Your audio is getting out of sync starting from 9:08

  • @HamRadioLiveShow
    @HamRadioLiveShow 3 роки тому

    Great video Eric. Well done.

  • @ChatGPT1111
    @ChatGPT1111 2 роки тому

    I love the split display being different than the radio display. I like my KW TS990 but it mirrors the displays so don't use that feature much. Plus the Elecraft has much higher resolution so might consider the change.

  • @Kibwunga
    @Kibwunga 2 роки тому

    Eric, long time Elecraft fan. I have heard that the A/D converter is the same as the Icom 7610. I believe the 7610 has 2 of those A/D converter. I am a believer in Elecraft, but I am wondering what the value add is to sped the extra $$ on the K4 over the Icom this time?

  • @Homer19521
    @Homer19521 4 роки тому +1

    Maybe I missed it but no discussion on AGC??? Eric- Will the K4 have AGCT like the Flex & other SDR's out there? I wrote to Elecraft months ago about this & I was told my question was submitted to the tech's. No answer so far.

  • @chadvandam7179
    @chadvandam7179 2 роки тому

    I am blind and wonder if you could use this radio while blindfolded? Does it have any embedded speech? Will it tell me all of my settings? Thank you for your response!

  • @petbytes7167
    @petbytes7167 3 роки тому

    Pre-ordered one in May. Looking forward to it. de K6TQ

  • @christopherreddick5263
    @christopherreddick5263 4 роки тому +2

    Hoping quality control on the K4 is better than the audio sync on this video.

  • @richardchicoine
    @richardchicoine 4 роки тому

    Magnifique présentation 🙏 Elecraft joue maintenant dans la cour des grands ! 73’s

  • @Homer19521
    @Homer19521 3 роки тому +1

    4 months ago and then nothing........

  • @ik6qon
    @ik6qon 3 роки тому

    Wonderful radio....The radio!

  • @pu2xbt74
    @pu2xbt74 3 роки тому +1

    when will the K4 be available and ready for sale ???

    • @Capecodham
      @Capecodham 3 роки тому +1

      When it snows in July

    • @gregboggs4721
      @gregboggs4721 3 роки тому +2

      I am ready to buy one, but no way I sending these people thousands of dollars for “pre order” and you can’t even get a simple answer when it will be available! Not a good business practice, this company won’t be around much longer operating like this. Sorry I guess I will look elsewhere now, Icom 7610, Apache Labs or Flex.

    • @pu2xbt74
      @pu2xbt74 3 роки тому

      @@gregboggs4721 hi, I ended up buying a TS 890S, I am very happy with it.

    • @Capecodham
      @Capecodham 3 роки тому

      @@gregboggs4721 All true. It was going to be ready November 2019, than April 2020, then Sept, then Oct and now who knows.

    • @Capecodham
      @Capecodham Рік тому

      @@ZAR66 You are late to the party.

  • @larryak0z672
    @larryak0z672 3 роки тому

    I wonder if it has variable power output. I'd like to run 5 watts QRP.

  • @johnratcliffe6438
    @johnratcliffe6438 3 роки тому

    Can a mouse be used to select and jump to a particular signal displayed on the panadapter?

    • @ericswartz8474
      @ericswartz8474 3 роки тому +1

      Absolutely! You can also fine tune with the mouse wheel, if you wish.

    • @johnratcliffe6438
      @johnratcliffe6438 3 роки тому

      @@ericswartz8474 Thanks Eric! 😊👍

  • @Oscaro9928
    @Oscaro9928 3 роки тому +1

    Sherwood has it at number 13…so why all the hype?? It’s even below their own KX3 LOL.

    • @gmaxwell
      @gmaxwell 2 роки тому

      Blocking dynamic range is just one metric to judge a radio by-- Elecraft will be releasing a superhet module for people who need the highest possible blocking dynamic range. Super deep blocking dynamic range usually comes at the expense of making the pan adapter and impulse blanker less useful (because they're blocked by the narrow front end filters). There is no free lunch.

  • @SomeRandomPerson163
    @SomeRandomPerson163 3 роки тому

    Some of visual design decisions are questionable. For example, these LEDs from right side - are you seriously? But it still looks better than k3

  • @OldSal-d8h
    @OldSal-d8h 2 роки тому

    Are you giving free samples? 73 de N9NY

  • @dx398
    @dx398 3 роки тому

    Can someone explain the "Split" feature?

    • @ne2i
      @ne2i 3 роки тому

      Receive on one frequency, transmit on another frequency. This is often done on 40 meters with Europeans and North American stations. Also it is often used on dxpeditions in huge pileups.

  • @Capecodham
    @Capecodham 3 роки тому

    When the hell will you bother to ship it?

  • @BurninWires
    @BurninWires 2 роки тому +1

    Lip Sync is shocking

  • @KL3NCH
    @KL3NCH 4 роки тому +2

    £4K too much? Hmm. For that level of performance? Icom want 10 large for their flagship. A Yaesu FTDX101 then? Comparable on price sure, but I know what I'd rather have. It's out of my league in terms of what I find justifiable, but objectively no way is it too expensive. I wouldn't knock it on price alone because excellence is never cheap, and with Elecraft I do find them fairly "spendy" anyway (which is an understatement). Lets wait and see how Sherweng rates it before trashing it on price alone.

    • @johnratcliffe6438
      @johnratcliffe6438 4 роки тому +2

      This isn't comparable to the 7851, more like the 7610. So a £3K Icom rig against a £4K Elecraft.

    • @gregboggs4721
      @gregboggs4721 3 роки тому

      Don’t worry about comparing it, it’s never going to happen they are so far behind the 7851 will be obsolete when the K4 arrives if it ever does. They are in big trouble.

  • @bobrunge7594
    @bobrunge7594 Рік тому

    …. and it’s only $5,000!

  • @petrok1rp254
    @petrok1rp254 4 роки тому

    K4HD is the only way, currently not available...

    • @kbell101
      @kbell101 3 роки тому

      Order then upgrade later when boards are available.

    • @ne2i
      @ne2i 3 роки тому

      If you have big antennas you will need the HD in a contest situation.

  • @gregboggs4721
    @gregboggs4721 3 роки тому +1

    I would buy it today, now I’m beginning to wonder if it will ever be a reality. People are getting tired of waiting and excuses. I know 2020 was terrible but a company should have stock piled the parts if they knew they were going to build this. It could have been designed years in advance, poor management and business practices will bankrupt you. People will lose confidence in your company and product. May seem like I’m being harsh but it’s the reality of the business world we live in.

  • @dirkr7891
    @dirkr7891 3 роки тому

    I had the dream.. But I takes too long.. I change my ideas.. Sorry

  • @henrycross8776
    @henrycross8776 3 роки тому

    I'm not wealthy , so.......

  • @paulfrancis8836
    @paulfrancis8836 4 роки тому +3

    at $4,000, no thanks.

    • @ng7m-ham-shack
      @ng7m-ham-shack 4 роки тому +6

      Actually if you include / order the superhet module for near strong signal / contest like environments you will be above the $5000 price tag including the antenna tuner. The only thing you have demonstrated here with your comment is that you are not familiar with the cost of a top tier contest grade transceiver. You could have equally made your comment on a Flex, Yaesu, Kenwood or Icom video. This is the price you pay and a lot more in the case of other manufacturers for a high end contest/DX grade radio. Clearly this isn't the rig for you. I would suggest looking at one of the Japanese entry level HF transceivers if you think this price is too high. Something in the price range of ~$900 to $1200. All of the big HF transceiver manufactures make fine radios.

    • @KL3NCH
      @KL3NCH 4 роки тому +2

      In fairness, PF only said that at the price level- no thanks. I didn't get any sense that he was trashing the radio, but the way it was written hinted at that. My bad as the kids say. Moreover, unless you have a top notch antenna, it's very unlikely you'd notice much difference between an "entry level" and a state of the art job? On my gutter mounted doublet, my FT818 and Icom IC-7200 both hear anything my KX3 can hear. Clearly fouf grand would be wasted.

    • @normkirk65
      @normkirk65 4 роки тому +1

      The price is quite reasonable. Looks like a really capable, fun to use transceiver. Quite the capabilities, feature set, excellent ergonomics, high quality winner here. May buy one this winter.

    • @paulfrancis8836
      @paulfrancis8836 4 роки тому +1

      @@normkirk65 It happens that I'm having 'fun' already with my transceiver, am I supposed to have more fun for $4,000 ? I can hear most things others can hear, am I supposed to hear more ? What I can't hear doesn't worry me, least of all Contesting. It's a nice transceiver, but not nice enough for the money. That's All Folks.

    • @ng7m-ham-shack
      @ng7m-ham-shack 4 роки тому +3

      @@paulfrancis8836 You are completely missing the point of why a transceiver at this level demands a premium price. It's not about the receiver sensitivity, please do your research... that nut was cracked decades ago and all transceivers based on the typical noise floor of an HF antenna setup are sensitive enough to hear weak signals in the later part of the 20th century and especially in the 21st century. What you are paying for here is dynamic range blocking, along with a ton of other bleeding edge features. It's easy to make a receiver sensitive and it's easy to make a receiver block strong signals near your passband, but what costs the big bucks is to make a receiver that does both! Sensitive and blocks strong signals to your passband. This is just one point here... Do your research before you demonstrate that you haven't done your research by posting 4 word responses. So yeah, if you don't operate in conditions with really loud adjacent signals then you won't care so much. There are those that love to have the feature set that makes contesting and DX'ing much more enjoyable. We have the budget and will pay for the bleeding edge. It's great that all the big three JA manufactures along with Elecraft in this case are pushing the bleeding edge. To just say "at $4000, no thanks" just again demonstrates that you don't understand why there is a market for these high end Transceivers. No commentary etc... it's too expensive, no thanks? You can say this about anything... that McLaren 900K super car... at 900K, no thanks, I only need to go 80mph and get there in 25 seconds? I could just as easily say, Icom IC-7300 poor dynamic blocking range and leave it at at that without doing the research to understand why an IC-7300 fits into the ICOM HF lineup where it does for the price. The IC-7300 is a really great transceiver for the price, but there is a reason that an ICOM IC-8751 costs $12000 and Flex / Electraft transceivers can command a $5000 / $6000 price tag. We are fortunate that there is a high end market, because the bleeding edge features trickle down to the entry level radios years later. It's a win, win for the Amateur market. Rational research and understanding why a product cost what it does based on the production and research required beats the grumpy old man response of 'at $4000, no thanks', any day of the week. Max NG7M