HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jul 29, 2006, 11:51 PM
Registered User
United States, CA
Joined Dec 2001
416 Posts
Discussion
1.2 GHz Wireless Video Polarity? Reverse-Polarity Protected?

Hi all,

I have a 1.2 GHz wireless video system which has a female RCA patch for 9V input to the Tx and what looks like a 1/8" jack for 9V input to the Rx. Problem is I don't know what the polarity should be, nothing stated on the data sheet and no polarity markings on the product.

What is the typical polarity for these devices (keeping in mind that this is a Chinese import, if that makes a difference), and are these things typically reverse-polarity protected?

TIA
green66 is offline Find More Posts by green66
Reply With Quote
Sign up now
to remove ads between posts
Old Jul 30, 2006, 01:18 AM
Its all fun
Tonystott's Avatar
Australia, NSW, Forster
Joined Oct 2004
7,192 Posts
Foolproof mathod to make sure? Hook up the battery and stick the contacts from your voltmeter onto the plug. Both my micro cameras had positive inside the plug and negative on the outside.
Tonystott is offline Find More Posts by Tonystott
Reply With Quote
Old Jul 30, 2006, 11:33 PM
KC5UH transmits -------->
ham2405's Avatar
Arlington, Texas
Joined Aug 2002
678 Posts
Not usually reverse protected, so be careful.

David
ham2405 is offline Find More Posts by ham2405
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale 2.4 GHz Wireless Video Downlink PLL Tuned kdill2160 Aircraft - General - Radio Equipment (FS/W) 3 Oct 26, 2005 01:31 PM
FS: RTF Wireless Video 1.2 GHZ 800mw system with CCD Camera and GP Antenna tradernfl Aircraft - Electric - Airplanes (FS/W) 14 Dec 31, 2004 02:21 PM
FS: RTF Wireless Video 1.2 GHZ 800mw system with CCD Camera and GP Antenna Nik-rc Aircraft - General - Radio Equipment (FS/W) 13 Jul 19, 2004 09:15 PM
1.2 ghz video frankenfoamy Aerial Photography 1 Jan 21, 2003 12:02 PM
Chinese 1.2 GHZ video cam improvements. bipeflyer Aerial Photography 7 Oct 29, 2002 03:41 PM