• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Amp & Antenna work

Naysayer

Solder Balls
I Support WorldwideDX.com!
Mar 6, 2020
327
256
73
New York
Amp working good on bench without an ATU. Been rewinding inductors like an Elf. New band switch, 6 inductor settings. Need antenna work before qro. Preparing to revise the EFHW. Currently, it's a 2 core (240 size) 49:1 unun feeding approx 27' counterpoise horizontal in-line with 70' main wire). Original plan was add another core and Receive preamp board which required a new enclosure & another relay with another pair power wire. While I'm up there- temp install a Guanella 4:1 balun (two 140 cores w/ RG316) experiment to see if an OCF is better use of the same wire.

EDIT: SWR Analyzer shows good. A day on the roof soon.
 

Attachments

  • 4 to 1 Guanella balun.JPG
    4 to 1 Guanella balun.JPG
    1.9 MB · Views: 245
Last edited:
  • Like
Reactions: Crawdad

dxChat
Help Users
  • No one is chatting at the moment.
  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.