• Public Gallery  • Help  
• Join Now!  • Log In  • Feature Tour
 holl_ands | Home > Loop Antennas incl Folded Dipole > 
HiVHF Shorted Bowtie Loop (NO Reflector)
Hi-VHF Shorted Bowtie Loop (46-in Diameter using Half-Inch Copper Tubing) analyzed using 4nec2.

Optimized for Hi-VHF Band (Ch7-13) but also provides minimal performance on Ch6 & FM Band.
CH2-5 also have 2.6-3.0 dBi of Raw Gain, but SWR becomes excessive on lowest channels.
Date(s): 18 Sept 2009. Album by holl_ands. 1 - 17 of 17 Total. 7354 Visits.
Start SlideshowTo order prints and photo-products: 1. Select photos. 2. Click Order. 3. Select products.Select images and click to download to your computer 
Enlarge photo 1
enlarge 0KB, 1024x976
1
VHF Shorted Bowtie Loop - Front View
46-in Diameter using Half-inch Copper Tubing
[One small box = 1.0 inch]


Enlarge photo 2
enlarge 0KB, 1024x658
2
VHF Shorted Bowtie Loop - Ch2-69 Raw Gain

Enlarge photo 3
enlarge 0KB, 1024x658
3
VHF Shorted Bowtie Loop - Ch2-69 SWR

Enlarge photo 4
enlarge 134KB, 1024x648
4
VHF Shorted Bowtie Loop
Hi-VHF Raw Gain


Enlarge photo 5
enlarge 163KB, 1024x648
5
VHF Shorted Bowtie Loop
Hi-VHF SWR (300-ohms)


Enlarge photo 6
enlarge 130KB, 1024x648
6
VHF Shorted Bowtie Loop
Hi-VHF Impedance


Enlarge photo 7
enlarge 321KB, 1024x1024
7
VHF Shorted Bowtie Loop
Hi-VHF Pattern at 174 MHz


Enlarge photo 8
enlarge 317KB, 1024x1024
8
VHF Shorted Bowtie Loop
Hi-VHF Pattern at 198 MHz


Enlarge photo 9
enlarge 320KB, 1024x1024
9
VHF Shorted Bowtie Loop
Hi-VHF Pattern at 216 MHz


Enlarge photo 10
enlarge 144KB, 1024x648
10
VHF Shorted Bowtie Loop - Ch2-FM Band Raw Gain

Enlarge photo 11
enlarge 184KB, 1024x648
11
VHF Shorted Bowtie Loop - Ch2-FM Band SWR (300-ohms)

Enlarge photo 12
enlarge 142KB, 1024x648
12
VHF Shorted Bowtie Loop - Ch2-FM Band Impedance

Enlarge photo 13
enlarge 320KB, 1024x1024
13
VHF Shorted Bowtie Loop
Ch2 Azimuthal Pattern


Enlarge photo 14
enlarge 326KB, 1024x1024
14
VHF Shorted Bowtie Loop
Ch5 Azimuthal Pattern


Enlarge photo 15
enlarge 326KB, 1024x1024
15
VHF Shorted Bowtie Loop
FM Azimuthal Pattern


Enlarge photo 16
enlarge 0KB, 1024x964
16
VHF Shorted Bowtie Loop - 3D View

Enlarge Microsoft Word Document 17
enlarge 28KB, 791x1024
DOC17
VHF Shorted Bowtie Loop - 4nec2 File

 
 Select All.  
  Sign the Guestbook. There are no entries.