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» 915mhz / 868mhz as a viable frequency for submarines.
Which crystal? EmptyWed Feb 01, 2023 8:15 am by maxx78

» 27Mhz - Radio Ideas
Which crystal? EmptyTue Jan 31, 2023 8:39 am by david f

» Not the hobby I expected :)
Which crystal? EmptyMon Dec 12, 2022 9:07 pm by cat

» Upholder build instructions
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» Antennas - Underwater
Which crystal? EmptyFri Dec 09, 2022 9:50 am by david f

» Single Channel Remote for submarines
Which crystal? EmptyFri Dec 02, 2022 2:59 pm by david f

» self contained compressor and solenoid valve for bladder systems.
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» New to this forum and first submarine
Which crystal? EmptyFri Oct 14, 2022 6:15 pm by Tom(ADMIN)

» USS Bluefish
Which crystal? EmptyFri Oct 14, 2022 1:52 am by Cheapsub

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    2 posters

      Which crystal?

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      Tom(ADMIN)
      AMS Forum Owner


      Posts : 3016
      Join date : 2010-11-05
      Age : 63
      Location : Nevada, USA

      Which crystal? Empty Which crystal?

      Post  Tom(ADMIN) Tue Nov 16, 2010 7:36 pm

      My TT Neptune came with a basic four channel radio installed...the tx is functional, but very plasticky and almost toy-like. I want to use my HiTec Optic6 tx with the Neptune, but the question is...which crystal do I use? I presume I'd need the TT tx crystal, but would they be compatible? I don't really want to strip the Neptune down again to replace the rx with the HiTec one unless I absolutely have to...

      Pic shows the TT tx.


      Which crystal? Img01310
      Giovanni LiCalsi
      Giovanni LiCalsi
      Guest


      Posts : 170
      Join date : 2010-11-15
      Age : 72
      Location : Alameda, California, USA

      Which crystal? Empty Re: Which crystal?

      Post  Giovanni LiCalsi Tue Nov 16, 2010 11:58 pm

      Hi Richard,
      I am pretty sure that you can buy a synthesized TX and RX for the radio if it is a 40MHz or a 35MHz transmitter.
      With a synthesized TX/RX you get something that operates very well underwater and the brilliant channel frequency selections by your choice.You can even add a 2.4GHz TX/RX, 2nd antenna with a toggle switch in-between the transmitters.
      Giovanni

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