Cuban Government Jamming 40 meter US HAM BAND

Discussion in 'Videos and Podcasts' started by K4KKC, Jul 14, 2021.

ad: L-HROutlet
ad: l-rl
ad: Left-2
ad: Left-3
ad: L-Geochron
ad: HRDLLC-2
ad: MessiPaoloni-1
ad: abrind-2
ad: L-MFJ
  1. KG5RKP

    KG5RKP Ham Member QRZ Page

    Sorry...I'll try to do better. ;)

    I spent about 2 hours last night 'spinning and grinning' around low HF through 10 MHz, with emphasis on the maritime weather fax freqs for the SE US, and 60. I didn't see any jamming. That doesn't mean there hasn't been; just means there was nothing obvious last night from San Antonio.'s all I've got.
  2. K4KKC

    K4KKC Ham Member QRZ Page

    How many Cubans do you personally know out there in TX?
    Have any of these people told you how they escaped the prison island via makeshift primitive rafts?
    How about the hams who brought their equipment along with them on the journey?

    You should have a broader perspective on:
    Who is navigating the Florida Straits.
    What equipment is available to them at the time.
    How they are risking their lives in search of freedom.
    Please research "hermanos al rescate" and get a few more details about the situation.
    K5ABB, K0UO and WN1MB like this.
  3. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    Hermanos al Rescate

    [ATTACHl]820060[/ATTACH] 20210804_125036.jpg
    Only 3 more Cessnas and he would have been an Ace

    Attached Files:

    Last edited: Aug 4, 2021
  4. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    Brothers to the Rescue Planes

    With all the jamming going on now our HF equipment would not have worked

    Last edited: Aug 4, 2021
    N0TZU likes this.
  5. KG5RKP

    KG5RKP Ham Member QRZ Page

    Before this goes off the deep end, answer me this: How many people escaping in rafts or small boats have their escape hampered by jamming of any type? What kind of radio did you have in the boat you escaped on?

    I DO feel for ALL refugees trying to escape bad lives - whether from Cuba, from Africa and sailing the Mediterranean, or going overland anywhere else. While in uniform, about half the work later in my career was humanitarian - getting food and medical supplies to people that needed it. Jamming was not a negative factor in accomplishing those missions. Jamming isn't a negative for people in overloaded boats because they don't have radios!

    If you have inside information, maybe you can tell us what kinds of radios the folks in rafts are using and how jamming affects them?

    Also - would ANYONE AT ALL with data on maritime jamming post frequencies at least and areas affected if known? Without data it's just an opinion - and we need fewer opinions, less emotion, and more data. Thanks in advance.
    Last edited: Aug 4, 2021
    KM4OZ likes this.
  6. KG5RKP

    KG5RKP Ham Member QRZ Page

    Is anyone monitoring 40 right now? I just saw something strange I've not seen before. No DF as the kiwisdrs needed were full and not available for use. I do NOT know where it was coming from. I do know a friend with an SDR in NC saw some, but not all of the pulses, and none of the 'arrows'.

    From at least 1930 UTC until 2150, there was a steady stream of pulses all across the 40 meter band. I didn't have time to measure all of them, but on the lower end there were at 7007, 7023, 7040, 70552 7071s 70873 71033 and 71194. I was working a Winlink net on 7102 and noted the pulsing on the edge of the 2300 Hz band. It did not affect throughput as the pulses were only 200 Hz wide.

    At 2150, the pulse rate approximately doubled to 1 per second, all the way across 40. The pulsing stopped exactly at 2151. At 2151:30, all of the frequencies that had pulses had a steady line, that widened, narrowed, repeated, then stopped at 2152.

    Attached Files:

    Last edited: Aug 4, 2021
  7. KG5RKP

    KG5RKP Ham Member QRZ Page

    As I said, my friend, we need less appendage waving and more data. The big problem with your claim is that you're saying you were using amateur radio bands to coordinate rescues and/or for interplane comms. Why were you not using VHF air for plane to plane and VHF marine to the Coast Guard? Also, why were you restricted to the part of 40 from 7.1 to 7.35 for your work? If this work was happening today, why would you not have sat phones? (One is none and 2 is one...) Bottom line: If this jamming would have kept you from using HF, even JUST on the amateur 40 band, then you guys probably should have stayed on the ground and hired some competent comms folks before flying again. Amateur radio ops all over the world continue to use 40 successfully even during the most intense jamming. A few of them hold CO calls.

    Maybe start a new thread and outline how "Brothers to the Rescue" operated, and get feedback from folks here. I'll bet some can offer constructive criticism that would help you improve your comms plan.
    Last edited: Aug 4, 2021
  8. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    I think you need to lighten up and chill out.
    I don't get excited about anything nowadays
  9. KG5RKP

    KG5RKP Ham Member QRZ Page

    If you don't bring data, I'm not concerned about what you think. Enjoy the rest of your Wednesday.
  10. W7UUU

    W7UUU Principal Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    If those wishing for this thread to remain open don't choose to keep the discussion limited to "jamming of the ham bands", it will be closed.

    No further warnings will be given.

    Keep it about radio or it will be closed.

    Thank you


Share This Page