The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

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



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join send an email with your name , address and phone number to amstreasure@googlemail.com


For a guide to past events see the "Shows and Events" section.

Papplewick Pumping Station SUBMARINE Day. 31st March - 1st April 2024.

$$$

&&&

::::

Who is online?

In total there are 2 users online :: 0 Registered, 0 Hidden and 2 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» U-Boat R/C?
ATU tuner unit  EmptyYesterday at 11:02 am by stig58

» Cheap Arduino Auto leveler
ATU tuner unit  EmptySat May 11, 2024 6:53 pm by 17b

» No reverse on Brushless ESC
ATU tuner unit  EmptyTue May 07, 2024 3:26 pm by geofrancis

» Peral Submarine of 1888
ATU tuner unit  EmptyMon May 06, 2024 11:16 am by david f

» Newbie needs advice!
ATU tuner unit  EmptyFri Apr 26, 2024 1:58 pm by david f

» Modulated electric fields for submarine communication in a "heads up" from Harry!
ATU tuner unit  EmptySun Apr 21, 2024 6:09 am by geofrancis

» 868/915 Mhz as a viable frequency for submarines.
ATU tuner unit  EmptyWed Apr 10, 2024 5:48 am by tsenecal

» Laser cut Robbe U47 conversion
ATU tuner unit  EmptyTue Apr 09, 2024 3:40 pm by david f

» ExpressLRS - 868/915 Mhz equipment
ATU tuner unit  EmptyTue Apr 02, 2024 3:27 pm by tsenecal

Statistics

Our users have posted a total of 12459 messages in 1984 subjects

We have 1012 registered users

The newest registered user is Tony 51

2 posters

    ATU tuner unit

    johnrobinson
    johnrobinson
    Guest


    Posts : 98
    Join date : 2011-06-10

    ATU tuner unit  Empty ATU tuner unit

    Post  johnrobinson Wed Feb 01, 2012 11:35 pm

    ATU tuner unit  Atu110

    picture of ATU this unit will tune an antenna from 1mhz to 30mhz and eney where between in 5khz steps it is software controlled and can remember hundreds of pre tuned setups for diffrent antennas. this is to connect to antennas that go underwater for controlling the sub



    ATU tuner unit  Atu_3110

    this is a picture of the other side of the ATU notice custom made caps on the PCB as it is very hard to get high voltage caps to use in this unit


    ATU tuner unit  Atu_4110


    this is a picture of the digital power meter and swr meter that plugs into the ATU so you can see what the swr is on the antenna
    david f
    david f
    AMS Treasurer


    Posts : 2401
    Join date : 2010-11-10
    Age : 73
    Location : Cumbria

    ATU tuner unit  Empty Re: ATU tuner unit

    Post  david f Thu Feb 02, 2012 9:57 am

    Really quite different looking electronics - high power- high frequency?

      Current date/time is Mon May 20, 2024 12:11 pm