900 MHz radios and depth

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  • Thorbrandr
    Lieutenant Commander

    • Mar 2022
    • 151

    #1

    900 MHz radios and depth

    Hi

    Having completed the rebuild on my Marlin WTC to get it running reliably, I have been running my Drydocks Type 212 build. I used a TBS Tango 2 transmitter with Diversity receiver in it. I am having loss of signal when it is about 4' deep and 50 foot away Mainly when the water its glass smooth. I can run it at 2' down over a 100' away, and on the surface even further. I can also run deeper when it is closer.

    What kind of depths are people getting not he 900 MHz receiver setups? My next planned build is a low pressure WTC ballast system in a UB1. I would like to be able to run this pretty deep.

    T

  • Subculture
    Admiral

    • Feb 2009
    • 2414

    #2
    I’m amazed you can see what your boat is doing at four feet deep fifty feet away!

    Comment

    • Thorbrandr
      Lieutenant Commander

      • Mar 2022
      • 151

      #3
      My sub driving area is a beach on the outlet river of one of our local lake. Technically green water, but it is typically very clear and has a sandy bottom. Depth runs from 2-7'. There is a dock that goes out into the river, and I can stand on that and get good visibility. A dark colored sub stands out well. I have added running lights on one of my subs to sit with murky conditions, which are normally deeper.

      The trick is picking the time when the kids are not playing, normally the mornings or cooler weather. I have had a kid throw a rock at one of my subs.

      Comment

      • Subculture
        Admiral

        • Feb 2009
        • 2414

        #4
        Sounds like the kid needs a clip around the earhole.

        Comment

        • type7
          Lieutenant Commander

          • Apr 2009
          • 186

          #5
          Most people run subs at periscope depth. Not much fun deeper than that. I know you can set the power level higher on frsky equipment and add an antenna to the transmitter. They might not be fcc compliant at higher power.

          Comment

          • Subculture
            Admiral

            • Feb 2009
            • 2414

            #6
            Plenty of fun running subs deeper, but it does require clear, still water. Swimming pools are usually best in this regard, as natural ponds rarely give the attributes of depth, a sheer drop from bank and clarity.

            Comment

            • He Who Shall Not Be Named
              Moderator

              • Aug 2008
              • 13404

              #7
              Originally posted by Subculture
              Sounds like the kid needs a clip around the earhole.
              Agreed. Some things are worth going to jail for.
              Who is John Galt?

              Comment

              • Das Boot
                Rear Admiral

                • Dec 2019
                • 1488

                #8
                Originally posted by Subculture
                Sounds like the kid needs a clip around the earhole.
                My misinterpretation has been flushed.
                Last edited by Das Boot; 07-23-2025, 05:59 PM.
                Of the approximately 40,000 men who served on U-boats in WWII, it is estimated that around 28,000 to 30,000 lost their lives.

                Comment

                • Thorbrandr
                  Lieutenant Commander

                  • Mar 2022
                  • 151

                  #9
                  I snapped a "HEY!" with a stern look at the inattentive mom. The problem ended.

                  Comment

                  • type7
                    Lieutenant Commander

                    • Apr 2009
                    • 186

                    #10
                    I'd suggest setting up a ballast fail safe.

                    Comment

                    • Subculture
                      Admiral

                      • Feb 2009
                      • 2414

                      #11
                      Originally posted by Das Boot

                      First off, in this day, that’s not even funny. But second, the only “clips” I know of, are in a rifle. Ammo holders for pistols are known as “magazines”. I had a lieutenant that my old shift used to work for, who was a retired Marine Lieutenant Colonel, and anyone caught using the word clip, had to do 25 push-ups.
                      "Clip round the ear hole" is a British English idiom that refers to a quick, light hit on the side of someone's head, usually around the ear. It's an informal expression, often used to indicate mild punishment or disapproval, but not intended to cause serious harm.

                      Comment

                      • Das Boot
                        Rear Admiral

                        • Dec 2019
                        • 1488

                        #12
                        Originally posted by Subculture

                        "Clip round the ear hole" is a British English idiom that refers to a quick, light hit on the side of someone's head, usually around the ear. It's an informal expression, often used to indicate mild punishment or disapproval, but not intended to cause serious harm.
                        Here in the states, we call it thumping someone’s head. I’m used to British slang, having watched many UK TV shows and movies, but never heard that one. My bad.
                        Of the approximately 40,000 men who served on U-boats in WWII, it is estimated that around 28,000 to 30,000 lost their lives.

                        Comment

                        • Albacore 569
                          Captain

                          • Sep 2020
                          • 619

                          #13
                          Originally posted by He Who Shall Not Be Named

                          Agreed. Some things are worth going to jail for.
                          whopoopppps

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