Noise on your Radio! (#290)

Published 2020-06-08
This is part 1 of 2 of a presentation I made to the Rochester Amateur Radio Association (RaRa) on 3 June 2020 on the subject of noise (QRN) and what can be done about it. It's a nice survey of noise sources. Ask Dave #291 will cover the second half of the presentation.

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All Comments (21)
  • @graywolf1911
    Very well done Dave, thank you, I learned a few new things.
  • @Mrdibzahab
    Not be be confused with the Dutch Rara! Most interesting information for a beginner like myself. Thanks!
  • @JohnSmith-bb2np
    Sounds like perfect audio level and quality. Like the good ole days.
  • @n3jw34
    Great Dave. Number 290. Another milestone and I've been waiting. Thank you and get back in the air (flying!)
  • @KD2REU
    Hello Dave! Thanks for delivering this wonderfully informative presentation to my radio club in Rochester! Everyone in the group had very positive feedback. As usual, you are always there with all the answers! 😁
  • @BusDriverRFI
    The 40-meter or 7-MHz band is an amateur radio frequency band, spanning 7.000-7.300 MHz in ITU Region 2, and 7.000-7.200 MHz in Regions 1 & 3. It's been a while since Region 1&3 were at 7.000 to 7.100.
  • @incaroads001
    This is exactly the video I was hoping for. I just passed my Extra exam the other day along with the technician and general at the same time. So on paper I'm supposed to know what I'm doing but, of course, I don't. And living in NYC there is nothing but noise most of the time, which is compounded by my lack of experience. This helped fill that knowledge gap. Thanks for another great video.
  • @penzman
    City buses aproaching my apartment or driving past were creating a lot of noise for me where I lived a few months ago.
  • @rolnas21
    In region 1 40m is from 7.0 to 7.2 (but some old broadcast stations still appears illegally or by mistake in 7.1-7.2). I hear once a broadcast station on 7.205 shifting to 7.200 and interfering with DX traffic).
  • I haven't got a ham rig, nor do I plan on getting one anytime soon. But I really enjoy listening to you, very interesting and informative channel Sir. I do own a CB though. 👍
  • @donbernat2483
    Thanks again for an informative and useful presentation.
  • The biggest problem with FT8 is people not staying in their lanes. I often find people not on clean 50hz segments. They split segments leaving lanes unopen for others. Then there are the people that haven't figured out that they shouldn't crowd a segment. FT8 was designed to put a LOT of people in a small segment of RF, but sadly, many haven't figured out how to do that.
  • @teashea1
    After considerable research and experimentation, for me, I have found that massive grounding is over-rated as a solution for RF and noise in general. Normal grounding can be helpful.
  • grounding of my radio station was or might have been the thing that saved my two big radios and also they were un hooked. it still amused me the path the lighting strike took.
  • @jeffdyer2393
    When your house was hit by lightning did you have the best ground in the neighborhood? I've never understood why hams think they need an awesome ground. Electricity follows the path of least resistance. You only need the one ground rod that services your house and you should hope your neighbor's is a little better than yours. If you have 3 or 10 ground rods and have a super ground where do you think the lightning is going to go. Jeff ke4fwe
  • Part one was good and I'm looking forward to the next one, Thank You 👌