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* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



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*2021 AND SOME EVENTS ARE BEING PROPOSED. Keep them coming and let us know the details! (amstreasure@googlemail.com)

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;:;


Model Sub Weekend, 28th, 29th August. Bluewater Parkway, Greenhithe, DA9 9

Bournville Sub Day. Sept 2021 is looking likely. More details TBA.

Barrow in Furness Regatta and Sub day. Maybe in Sept 2021. Details TBA.

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» UHF radio control for submarines (openLRS, LoRa, FSK etc. on 458Mhz and 433Mhz )
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    Which crystal?

    Tom(ADMIN)
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    Tom(ADMIN)
    AMS Forum Owner

    Posts : 3002
    Join date : 2010-11-05
    Age : 61
    Location : Nevada, USA
    • Post n°1

    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
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    Giovanni LiCalsi
    Giovanni LiCalsi
    Giovanni LiCalsi
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    Posts : 170
    Join date : 2010-11-15
    Age : 70
    Location : Alameda, California, USA
    • Post n°2

    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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