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.

Who is online?

In total there is 1 user online :: 0 Registered, 0 Hidden and 1 Guest :: 1 Bot

None


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

Latest topics

Search

 
 

Display results as :
 

Rechercher Advanced Search

Most Viewed Topics

UHF radio control for submarines (openLRS, LoRa, FSK etc. on 458Mhz and 433Mhz )
Piston Ballast Systems
Moebius Skipjack
Engel U177 IX D2
CSS HUNLEY
Revell 1:72 VIIC u-boat
CSS PIONEER
New project - USS Nautilus
Prop shaft seals
Skipjack.part 2

Statistics

Our users have posted a total of 11474 messages in 1887 subjects

We have 935 registered users

The newest registered user is geofrancis

3 posters

    Pingers and Hydrophones

    profesorul
    profesorul
    profesorul
    Guest

    Posts : 386
    Join date : 2011-07-03
    Age : 57
    Location : Bucuresti, ROMANIA
    • Post n°26

    Pingers and Hydrophones - Page 2 Empty Re: Pingers and Hydrophones

    Post  profesorul Sun Mar 22, 2015 8:46 pm

    I'm interested too .
    I think I steel have some were a Walkman tape cassette with his original helmet ! .

    Yap , I know I'm a sentimental guy !.

    MARIUS
    • Back to top
    david f
    david f
    david f
    AMS Treasurer

    Posts : 2187
    Join date : 2010-11-10
    Age : 71
    Location : Cumbria
    • Post n°27

    Pingers and Hydrophones - Page 2 Empty Re: Pingers and Hydrophones

    Post  david f Mon Mar 23, 2015 2:36 pm

    Just try it. You are not going to do any damage!

    The more hydrophones floating about the better (See my other post today!)

    Piezo elements are fairly "high impedance" but a lot of reasonably sensitive audio amplifiers will do the trick.

    The sort of sensitivity you are looking for (with the hydrophone element on a table) lightly tapping or scraping the table should give a noise over the headphones. (Headphones are always better, for some reason.)

    David
    • Back to top

      Current date/time is Tue Oct 19, 2021 2:37 am