• 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 - AWG10
UHF + Hi-VHF Stealth Hawk (AWG10 Elements) analyzed using AWG10.

Presuming equal lengths for all elements and assumed angles, it was not possible to cover the entire UHF band.
The following are useful alignments that cover the lower, middle and higher channels respectively:

A. WL=10.0-in at 45-deg, BL=10.0-in at 30-deg with Top & Feedpoint Gaps=3-in:
UHF: > 2dBi on Ch14-42 with SWR < 2.7 and HiVHF: 1.7-1.8 dBi with SWR 7.0->5.8

B. WL=9.75-in at 45-deg, BL=9.75-in at 30-deg with Top & Feedpoint Gaps=3-in:
UHF: > 2dBi on Ch14-45 with SWR < 2.8 and HiVHF: 1.7-1.8 dBi with SWR 7.3->5.9

C. WL=9.5-in at 45-deg, BL=9.5-in at 30-deg with Top & Feedpoint Gaps=3-in:
UHF: > 2dBi on Ch16-47 with SWR < 2.8 and HiVHF: 1.6-1.8 dBi with SWR 7.9->5.9

D. WL=9.0 at 45-deg, BL=9.0-in at 30-deg with Top & Feedpoint Gaps=3-in:
UHF: > 2dBi on Ch20-51 with SWR < 2.8 and HiVHF: 0.8-1.8 dBi with SWR 12->6 [Note loss of Gain and higher SWR on Ch7-8.]

E. WL=8.5 at 45-deg, BL=8.5-in at 30-deg pushed UHF coverage even higher and had a Gain HOLE on Ch7 - NOT recommended.

F. WL=8.0 at 45-deg, BL=8.0-in at 30-deg pushed UHF coverage even higher and had a Gain HOLE on Ch9 - NOT recommended.
Date(s): 25 Apr 2010. Album by holl_ands. 1 - 33 of 33 Total. 4522 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 57KB, 1024x962
1
UHF_Hi-VHF Stealth Hawk - AWG10 - 3D View
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.

Enlarge photo 2
enlarge 160KB, 1152x616
2
UHF_Hi-VHF Stealth Hawk - AWG10 - Front View
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
[1 small box = 1.0-inch]

Enlarge Microsoft Word Document 3
enlarge 28KB, 791x1024
DOC3
UHF_Hi-VHF Stealth Hawk - AWG10
4nec2 File

Enlarge photo 4
enlarge 126KB, 1024x648
4
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
UHF Raw Gain > 2 dBi on Ch14-42

Enlarge photo 5
enlarge 149KB, 1024x648
5
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
UHF SWR < 2.7

Enlarge photo 6
enlarge 153KB, 1024x648
6
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
UHF Impedance

Enlarge photo 7
enlarge 124KB, 1024x648
7
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
Hi-VHF Raw Gain 1.7-1.8 dBi

Enlarge photo 8
enlarge 176KB, 1024x648
8
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
Hi-VHF SWR (300-ohm) = 7.0->5.8

Enlarge photo 9
enlarge 127KB, 1024x648
9
UHF_Hi-VHF Stealth Hawk - AWG10
WL=10.0-in at 45-deg, BL=10.0-in at 30-deg, Gaps=3-in.
Hi-VHF Impedance

Enlarge photo 10
enlarge 126KB, 1024x648
10
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
UHF Raw Gain > 2 dBi on Ch14-45

Enlarge photo 11
enlarge 150KB, 1024x648
11
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
UHF SWR (300-ohms) < 2.8

Enlarge photo 12
enlarge 153KB, 1024x648
12
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
UHF Impedance

Enlarge photo 13
enlarge 124KB, 1024x648
13
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
Hi-VHF Raw Gain 1.7-1.8 dBi

Enlarge photo 14
enlarge 176KB, 1024x648
14
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
Hi-VHF SWR (300-ohms) = 7.3->5.9

Enlarge photo 15
enlarge 127KB, 1024x648
15
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.75-in at 45-deg, BL=9.75-in at 30-deg, Gaps=3-in.
Hi-VHF Impedance

Enlarge photo 16
enlarge 126KB, 1024x648
16
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Raw Gain > 2 dBi on Ch16-47

Enlarge photo 17
enlarge 159KB, 1024x648
17
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF SWR (300-ohm) < 2.8

Enlarge photo 18
enlarge 153KB, 1024x648
18
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Impedance

Enlarge photo 19
enlarge 124KB, 1024x648
19
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
Hi-VHF Raw Gain 1.6-1.8 dBi

Enlarge photo 20
enlarge 149KB, 1024x648
20
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
Hi-VHF SWR (300-ohms) = 7.9->5.9

Enlarge photo 21
enlarge 125KB, 1024x648
21
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
Hi-VHF Impedance

Enlarge photo 22
enlarge 144KB, 1024x785
22
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 470 MHz
Gain not pointed FORWARD.

Enlarge photo 23
enlarge 138KB, 1024x784
23
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 527 MHz

Enlarge photo 24
enlarge 139KB, 1024x788
24
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 584 MHz

Enlarge photo 25
enlarge 135KB, 1024x787
25
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 641 MHz

Enlarge photo 26
enlarge 140KB, 1024x787
26
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 698 MHz
Gain not pointed FORWARD.

Enlarge photo 27
enlarge 146KB, 1024x787
27
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.5-in at 45-deg, BL=9.5-in at 30-deg, Gaps=3-in.
UHF Horiz. Polar. 3D Pattern at 806 MHz
Gain not pointed FORWARD.

Enlarge photo 28
enlarge 127KB, 1024x648
28
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
UHF Raw Gain > 2 dBi on Ch20-51

Enlarge photo 29
enlarge 151KB, 1024x648
29
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
UHF SWR (300-ohm) < 2.8

Enlarge photo 30
enlarge 152KB, 1024x648
30
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
UHF Impedance

Enlarge photo 31
enlarge 127KB, 1024x648
31
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
Hi-VHF Raw Gain 0.8-1.8 dBi
Note Gain loss on Ch7-8.

Enlarge photo 32
enlarge 165KB, 1024x648
32
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
Hi-VHF SWR (300-ohms) = 12->6
Note SWR is also Excessive on Ch7-8.

Enlarge photo 33
enlarge 133KB, 1024x648
33
UHF_Hi-VHF Stealth Hawk - AWG10
WL=9.0-in at 45-deg, BL=9.0-in at 30-deg, Gaps=3-in.
Hi-VHF Impedance

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