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Recent content by Alexis Mercado

  1. Alexis Mercado

    Coax, null or not?

    The good thing about using resonant lenght of coaxial is that the coaxial will not be part of the antenna ( will be invisible) when using an antenna analizer. ( like if you had the antenna analizer directly attached at the antenna feed point).
  2. Alexis Mercado

    nanoVNA - first scan, IMAX2000

    Now, those results are way better, more realistic. I had an IMaxx and worked very well. From 1-10, I give it an 8. An aluminum antenna with radials, I give it a 9 because radials help diminish common mode interference ( can be resolver with a common mode filter ). It’s is a little heavy also. I...
  3. Alexis Mercado

    Galaxy 350 amplifier

    Hi. What type ( class ) of amplifier is this? It has two 2sc2879 Toshiba pills. How much power should I input ( carrier and PEP ) ? A friend of mine sells it and I am tempted to buy it. He sell it to me for $ 150. It looks pristine inside. What should I check before buying it ? Can It be...
  4. Alexis Mercado

    Base New Imax wont tune 11m....this sucks

    Sand It and clear coat It . That’s It. Preferably with UV ( ultra violet light radiation ) resistant paint.
  5. Alexis Mercado

    Icom IC-7410 CTRL board wanted

    Hi again. Still looking for this board.
  6. Alexis Mercado

    Base New Vertical base antenna suggestions

    I want to know about those antennas.
  7. Alexis Mercado

    Home Cyber Monday 2025 Radioddity QT80 Giveaway!

    I understand the rules and wish to enter the contest.
  8. Alexis Mercado

    Mighty Magnum 3

    Good to see one Classic antenna like that. I had the bigger one , the Super Magnum. That was my first CB antenna way back 1989. I rescued it from an abandoned building. By that time I had a VW Beetle. I had to struggle to fit it inside the VW because of the radials .
  9. Alexis Mercado

    Base Sirio SY3. Elements lenght

    @Dr_DX Thank you very much !!!!
  10. Alexis Mercado

    Icom IC-7410 CTRL board wanted

    Hi again. Still looking for this board.
  11. Alexis Mercado

    Small station

    What are those things that say revenge ?
  12. Alexis Mercado

    Base Sirio SY3. Elements lenght

    Preferably lenght from tip to tips of each element.
  13. Alexis Mercado

    Base Sirio SY3. Elements lenght

    Hi. I am looking for the elements lenght in channel 20 in inches. It is a hassle to deal with the instruction manual. Also looking for L1 and L2 measurements. Thanks in advance.
  14. Alexis Mercado

    How does Ground Topography affect radiation pattern ??

    Capo: No te preocupes demasiado. Instala la antena y a disfrutar el DX. A veces la teoría no es concluyente, la práctica si. Localmente si podrías tener problemas. En cuanto a DX no creo. Por cierto, ¿ cuál es tu 10-28 , en que frecuencias se te puede encontrar ? Yo soy de Puerto Rico.