Ch13 5-Element Yagi optimized by nikiml analyzed using 4nec2. Characteristic Impedance is 75-ohms, so a 1:1 Balun should be used.
Although the Gain was maximum on Ch13, the Front-to-Back Ratio was not, being centered more on Ch12. SWR was excellent, below 2 on Ch13. Boom Length = 48-in. This antenna is also very usable on Ch11 and Ch12, although the F/B Ratio is fairly small on Ch11.
holl_ands mods to nikiml's 4nec2 file: 1. Added Symbol Rsrc to adjust AGT=1.0 after I found it was a bit off: AGT=0.98 (-0.1 dB). 2. Adjusted Segmentation to agree with AutoSeg(29), since it was somewhat different (incl. EVEN number segmentation, which AutoSeg never allows). 3. Added my standard set of FR/RP statements, rather than using fat-fingered manual 4nec2 entries.
Date(s): 4 Sep 2011. Album by holl_ands. 1 - 11 of 11 Total. 6321 Visits.
enlarge 47KB, 1024x770 1 Ch13 5-Element Yagi - opt. by nikiml 3D View
enlarge 185KB, 1152x635 2 Ch13 5-Element Yagi - opt. by nikiml Top View [1 large box = 5-inch]
enlarge 55KB, 1152x182 3 Ch13 5-Element Yagi - opt. by nikiml Front View [1 large box = 2.5-inch]
enlarge 156KB, 1152x638 4 Ch13 5-Element Yagi - opt. by nikiml Ch11-13 Raw Gain
