Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
A simple active hidden antenna
Post: #1

This circuit shows an active antenna that can be used for AM, FM, and shortwave (SW).
On the shortwave band this active antenna is comparable to a 20 to 30 foot wire antenna. [Image: active2.gif]
This circuit is designed to be used on receivers that use untuned wire antennas, such as inexpensive units and car radios.
L1 can be selected for the application. A 470uH coil works on lower frequencies ( AM ). For shortwave, try a 20uH coil.

The unit can be powered by a 9 volt battery. If a power supply is used, bypass the power supply with a .04uF capacitor to prevent noise pickup.
The antenna used on this circuit is a standard 18" telescoping type.
Output is taken from jack J1 and run to the input on the receiver.

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: online hidden object, nexsan hidden pages, hidden active cell phone dedector pdf file, simple, simple hidden camera detector circuit, disadvantages of hidden active cell phone detector, simple circuit of hidden cam,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Microstrip Patch Antenna - full report seminar surveyer 6 8,727 11-11-2014 11:32 PM
Last Post: jaseela123
  Simple digital stopwatch using at89s51 Microcontroller project report helper 2 3,276 19-03-2013 12:49 PM
Last Post: Guest
  CREDIT CARD FRAUD DETECTION USING HIDDEN MARKOV MODELS computer science crazy 3 3,704 06-03-2012 09:57 AM
Last Post: seminar paper
  DESIGN OF AN S-BAND CIRCULAR MICROSTRIP PATCH ANTENNA smart paper boy 1 1,973 11-02-2012 11:21 AM
Last Post: seminar addict
  Two Practical Man-In-The-Middle Attacks on Bluetooth Secure Simple Pairing seminar class 1 1,612 02-02-2012 10:23 AM
Last Post: seminar addict
  4G WIRELESS SYSTEM simple explanation seminar addict 2 1,054 01-02-2012 10:16 AM
Last Post: seminar addict
  SMART ANTENNA SYSTEM FEATURES AND BENEFITS seminar class 2 2,033 18-01-2012 10:06 AM
Last Post: seminar addict
  SIMPLE INTERCOM seminar surveyer 3 2,297 15-10-2011 09:40 AM
Last Post: seminar addict
Last Post: smart paper boy
  Power Quality Improvement for Matrix Converter using Shunt Active Filter smart paper boy 0 940 24-08-2011 11:15 AM
Last Post: smart paper boy