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  1. Pez

    Sinad Meter

    I just skimmed through the video, but it looks like his notch filter caps are bad. That's why at the end of his video, the meter won't adjust to the far left. You need 2 things to calibrate these Sinadders properly: 1 - A very accurate tone (signal) generator, capable of 1KHz and 2KHz sinwave...
  2. Pez

    Sinad Meter

    There is alignment information available that is not hard to follow. It is important to align them because there are 2 x capacitors that are used for the 1KHz notch filter, which can move in tolerance over time. Usually, they can be aligned back to where they need to be with the on-board...
  3. Pez

    President Lincoln II plus - Digital mode

    The point of my post was: You can do this on the new AT-6666 PRO without needing the Signalink, or any third party controller. Which is cool! 73
  4. Pez

    Got my Tiny SA Ultra (first thoughts)

    There is a python controller available apparently. (That might satisfy your need for some Linux pain lol). Seriously, I respect anyone who can run Linux full-time. It's a skill I cant master. I use Linux for radio projects and pi based servers, but for every day use would make my head explode...
  5. Pez

    Sinad Meter

    Ha! That's awesome, I didn't know that.
  6. Pez

    Sinad Meter

    For what you are doing, I would go with either a genuine a Sinadder (if you can find one), or the the Sinadalizer from the UK, which is pretty much a clone of that circuit. I have an original Sinadder 3 here, and I prefer to use it over the built in Sinad measurement in my Marconi and HP test...
  7. Pez

    President Lincoln II plus - Digital mode

    Hi Mike, In regards to a Lincoln II+, I agree. The frequency stability of the AT-6666PRO is extremely good. It is no challenge for most digital modes, at all. I am doing it. It is actually much closer to the stability of an IC-7300 than to any of the other radios that have been in this lower...
  8. Pez

    President Lincoln II plus - Digital mode

    I am 100% sure. This is the new "PRO" model. It is totally new inside, and is not the original AT-6666 that you are referring too. It will be released in July. FYI, CAT control is not needed for many digital modes. Most (like WSJT-X, JS8Call and most RTTY/SSTV software) support a VOX mode too...
  9. Pez

    President Lincoln II plus - Digital mode

    Just to be clear, the AT-6666PRO I refer to needs no mods at all for this to work. Just a cable. And it covers 15m/12m/10m in a similar price range to the LII+ that @opale7000 is considering. The 7300 is a great rig, but it is a significant price jump. That might, or might not be a factor here. 73
  10. Pez

    President Lincoln II plus - Digital mode

    Welcome to the hobby! The Signalink device manages the PTT control internally (it has its own VOX), so you don't need VOX in the radio for it to function correctly. For a "single" mic-jack cable connection to the radio, you need RX Audio available on the mic socket for this to work. Otherwise...
  11. Pez

    Anytone At-6666 Pro

    Very close! Production is scheduled for early July.
  12. Pez

    Got my Tiny SA Ultra (first thoughts)

    They are excellent SA's for the money. I have a new Siglent SA in my shack, and both the original TinySA and the TinySA Ultra. The Ultra is worth every cent over the standard version. It can do many of the things that my Siglent can do with acceptable accuracy, it just takes longer to setup and...
  13. Pez

    RMS or P-P Voltage for modulation alignment

    Good question. I have worked with radios that specify either P-P or RMS. And many that don't specify at all. And not all radios require the same level. In practice, I always start with 50mV P-P (35mV RMS) and go up and down from there to see where the input level is happy. I will always check...
  14. Pez

    Anytone At-6666 Pro

    Yep that's right. Mike's style is always to go for the cleanest waveform possible. His work makes an already clean radio, even cleaner (which will then sometimes show a couple of watts less on SSB, than the factory alignment will).
  15. Pez

    Anytone At-6666 Pro

    FYI, the AT-6666PRO can be set to remember the mode and other user settings, per individual channel. For example, if CH 38 is always LSB, CH 06 is always AM, and 27.555 is always USB, the radio can automatically change the mode for you, when you arrive back those channels. (Use the PUBLIC (PD)...
  16. Pez

    Anytone At-6666 Pro

    Here is the new AnyTone AT-6666 PRO User Manual. (Please note: the radio is not yet in full production, so some things may change or be added later). 73
  17. Pez

    Anytone At-6666 Pro

    Yes. And the jumper is for expanding to 15m.
  18. Pez

    Anytone At-6666 Pro

    No wires to snip. No soldering required.
  19. Pez

    Anytone At-6666 Pro

    Backlight dimming has 5 levels. RX is 100% new. NRC and AGC control. Smooth as butter.
  20. Pez

    Anytone At-6666 Pro

    A local supplier has confirmed sell pricing of only slightly higher than the original. You can safely ignore the crazy placeholder pricing some EU websites posted (who didn't have radios to sell at the time).