• Public Gallery  • Help  
• Join Now!  • Log In  • Feature Tour
 holl_ands | Home > Chireix, StealthHawk & V-Hawk Zig-Zags > Hi-VHF+UHF Stealth Hawk > 
UHF_HiVHF Stealth Hawk X29 - AWG10
UHF + Hi-VHF Stealth Hawk (X29 Mod) analyzed using 4nec2.

Although it was not possible to cover the entire New UHF Band, the following choices cover nearly the whole band,
except a few channels on either the top or the bottom of the band:

A. Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg with Zdrop=-1.0-in, Gaps=3-in and AWG10.
UHF: 2-4 dBi on Ch14-47 with SWR < 2.4. Hi-VHF: 1.4-1.5 dBi with Excessive SWR=7.3->5.3.

B. Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg with Zdrop=-0.5-in, Gaps=3-in and AWG10.
UHF: 2-4 dBi on Ch18-51 with SWR < 2.4. Hi-VHF: 1.4-1.6 dBi with Excessive SWR=9.3->5.7.

Note that although the Azimuthal Pattern is well controlled at Hi-VHF, it's double-lobed at UHF, with reduced gain along the X-axis.
Date(s): 25 Apr 2010. Album by holl_ands. 1 - 27 of 27 Total. 4103 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 45KB, 1024x697
1
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.

Enlarge photo 2
enlarge 139KB, 1152x519
2
UHF_Hi-VHF Stealth Hawk X29 - Front View
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
[1 small box = 1.0-inch]

Enlarge Microsoft Word Document 3
enlarge 28KB, 791x1024
DOC3
UHF_Hi-VHF Stealth Hawk X29 - 4nec2 File
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.

Enlarge photo 4
enlarge 139KB, 1024x648
4
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF Raw Gain drops off on higher channels.

Enlarge photo 5
enlarge 158KB, 1024x648
5
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF SWR (300-ohms)

Enlarge photo 6
enlarge 155KB, 1024x648
6
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF Impedance

Enlarge photo 7
enlarge 141KB, 1024x648
7
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF Raw Gain

Enlarge photo 8
enlarge 159KB, 1024x648
8
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF SWR (300-ohm) is Excessive.

Enlarge photo 9
enlarge 126KB, 1024x648
9
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF Impedance

Enlarge photo 10
enlarge 139KB, 1024x789
10
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 470 MHz

Enlarge photo 11
enlarge 138KB, 1024x787
11
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 584 MHz

Enlarge photo 12
enlarge 139KB, 1024x789
12
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 698 MHz

Enlarge photo 13
enlarge 137KB, 1024x784
13
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF Horiz. Polar. 3D Pattern at 174 MHz

Enlarge photo 14
enlarge 139KB, 1024x786
14
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF Horiz. Polar. 3D Pattern at 198 MHz

Enlarge photo 15
enlarge 140KB, 1024x784
15
UHF_Hi-VHF Stealth Hawk X29
Top: 9.5-in at 45-deg. Bottom: 9.5-in at 30-deg.
AWG10. Zdrop=-1.0-in. Gaps=3-in.
Hi-VHF Horiz. Polar. 3D Pattern at 216 MHz

Enlarge photo 16
enlarge 45KB, 1024x678
16
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.

Enlarge photo 17
enlarge 133KB, 1152x523
17
UHF_Hi-VHF Stealth Hawk X29 - Front View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
[1 small box = 1.0-inch]

Enlarge Microsoft Word Document 18
enlarge 28KB, 791x1024
DOC18
UHF_Hi-VHF Stealth Hawk X29
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
4nec2 File

Enlarge photo 19
enlarge 118KB, 1024x648
19
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF Raw Gain drops off on low channels.

Enlarge photo 20
enlarge 172KB, 1024x648
20
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF SWR (300-ohms)

Enlarge photo 21
enlarge 155KB, 1024x648
21
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF Impedance

Enlarge photo 22
enlarge 125KB, 1024x648
22
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
Hi-VHF Raw Gain

Enlarge photo 23
enlarge 177KB, 1024x648
23
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
Hi-VHF SWR (300-ohms) is Excessive.

Enlarge photo 24
enlarge 134KB, 1024x648
24
UHF_Hi-VHF Stealth Hawk X29 - 3D View
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
Hi-VHF Impedance

Enlarge photo 25
enlarge 142KB, 1024x785
25
UHF_Hi-VHF Stealth Hawk X29
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 470 MHz

Enlarge photo 26
enlarge 139KB, 1024x786
26
UHF_Hi-VHF Stealth Hawk X29
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 584 MHz

Enlarge photo 27
enlarge 135KB, 1024x787
27
UHF_Hi-VHF Stealth Hawk X29
Top: 9.25-in at 45-deg. Bottom: 9.25-in at 30-deg.
AWG10. Zdrop=-0.5-in. Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 698 MHz

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