RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Service Specific Monitoring > Radio Direction Finding Forum


Radio Direction Finding Forum - Discussions regarding direction finding and transmitter location

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 01-09-2018, 7:11 PM
  Amateur Radio Operator
Amateur Radio
 
Join Date: Jan 2018
Posts: 1
Default Radio Location - transmitter antenna

Hi Guys,

I fairly new to radio and foxhunting. I know that most foxhunting uses a transmittter to produce a signal and competitors use directional antennas to locate the transmitter. My question is what would happen if the transmitter also was equipped with a directional antenna? Would you still be able to locate the source?
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 01-09-2018, 8:46 PM
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2002
Location: Wichita Falls, TX
Posts: 6,756
Default

Yes you can still locate it. The only difference a direcional antenna on the transmitter makes is the signal is weaker in some areas and stronger in others depending where the antenna is pointing. It doesn't affect the directional readings that the hunters get.
__________________
Tom
Reply With Quote
  #3 (permalink)  
Old 01-09-2018, 8:47 PM
dkf435's Avatar
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Apr 2006
Location: Sweet Home/Foster OR
Posts: 631
Default

Depends on how good they are at the Baldy Bounce, heard of one T Hunt they were like under a freeway overpass and pointed at MT Baldy with a beam and it scattered everyplace. They have had 2meter beams on rotors and a rotisserie so changing azimuth and polarity is not unheard of.

Signal stalkers - LA Times

David
__________________
AR3000,5000,8000,8200,8600,SDU5000,5500,ARD25 R10,20,71,72,75,7000,7100,8500, PC/R1001000,2500, PSR500,600,800,PRO668,2035,96,106,197,BC760,796,99 6T,996XT,396T,396XT,HP1,HP1E,436HP,536HP
Reply With Quote
  #4 (permalink)  
Old 01-09-2018, 9:46 PM
n9mxq's Avatar
Member
  Premium Subscriber
Premium Subscriber
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2005
Location: Belvidere IL
Posts: 1,510
Default

I once put on a fox hunt where myself and assistant were in a forest preserve in the north part of the county. Had a beam pointed towards town.. all the hunters were 90% sure I was at a local farm store some 12 miles away... apparently they all wandered around the lot looking for a cross band setup.. funny thing was, I had the beam, a 2m vertical and another antenna I called "the bazooka" (2 5 pound coffee cans soldered end to end..open on one end with a rubber duck inside) and was switching between the beam and vertical, and saved the bazooka for when they started getting close.. hunt lasted 4 hours.. but we had grilled burgers and hot dogs waiting.. don't even ask about my mobile fox...hehe..

Sent from my SM-G950U using Tapatalk
__________________
Gene
Is there such a thing as too many radios??
Transceivers, receivers, and SDR! Oh My!
Reply With Quote
  #5 (permalink)  
Old 01-12-2018, 1:19 PM
Member
  Audio Feed Provider
Audio Feed Provider
Amateur Radio Operator
Amateur Radio
 
Join Date: Feb 2011
Location: Bonners Ferry, Idaho
Posts: 48
Default

11 element beam, 200 Watts pointed at a water tower a couple miles away. Talk about splatter. Was in a slight depression in what looked like a open flat field.

Most everyone was using the minimum power as the fox, we went to the other extreme. Everyone on the hunt had preamps very few had attenuators. Made a very enjoyable hunt.
Reply With Quote
Sponsored links
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 8:51 PM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions