Archive of low Q VHF/UHF yagi designs
by Derek Hilleard G4CQM (2017)

6M Band - 50MHz...

Design IDλBoom
(m)
BW
Az°
BW
El°
Gain
(dBi)
F/B
(dB)
DEQ-factor
(Avg)
6CQM5UC0.472.860928.6417.0Split Dipole6.3
WS65055!0.553.30560809.3417.2Split Dipole6.69
WS650650.653.956809.5920.7Split Dipole4.3
6CQM6UX0.714.26567210.322.9Split Dipole21.69
WS66075!0.754.5527210.420.6Split Dipole22.11
WA66080!0.804.8526410.917.6Split Dipole15.56
WS66082!0.824.9526810.720.9Split Dipole8.8
WS671161.166.9548561225.9Split Dipole15.1
PA0712L1.237.35445212.221.5Split Dipole16.3
WS681621.629.672404813.224Split Dipole15.3

4M Band - 70MHz...

Design IDλBoom
(m)
BW
Az°
BW
El°
Gain
(dBi)
F/B
(dB)
DEQ-factor
(Avg)
4CQM5UC0.472.00960928.6716.9Split Dipole5.18
WA45055!0.552.36056809.417.1Split Dipole5.27
WS450650.652.78456809.620.8Split Dipole4
WS46075!0.753.212527210.420.3Split Dipole18.2
WS460820.823.498526810.720.7Split Dipole7.39
WS47116!1.164.9485611.725.9Split Dipole20.02
PA0712H1.235.247445212.221.7Split Dipole10.7
WS481791.797.651404413.519.4Split Dipole4

2M Band - 144MHz...

Design IDλBoom
(m)
BW
Az°
BW
El°
Gain
(dBi)
F/B
(dB)
* Ta (°K)
@ 30° Elev
* G/Ta (dB/°K)
@ 30° Elev
DEQ-factor
(Avg)
WS250650.651.35456809.5419.6298.7-9.16Split Dipole3.51
WS26075!0.751.565567210.322.4230.3-7.53Split Dipole21.5
WS260820.821.700526810.621.9237.8-7.18Split Dipole10.27
WS27116!1.162.41748561227.4233.1-5.96Split Dipole17.7
WS271231.232.550445612.125.6233.6-5.80Split Dipole10.19
WS281621.623.357404813.126.7232.6-4.95Split Dipole17.4
CQM8C41.683.480445212.826.7229.4-4.98Split Dipole11.3
WAXX8S1.793.725404413.419.8243.6-4.61Split Dipole4.57
WA9XX!1.793.725404813.124.8228.2-4.55Split Dipole19.76
CQM9C42.134.428404413.728.2230.6-4.11Split Dipole9.4
CQM12UX2.344.835404414.123.1228.8-3.76Split Dipole5.6
CQM10C42.364.890384214.125.6222.26-3.84Split Dipole15.3
CQM10DX!2.364.890364014.225.5221.5-3.71Split Dipole13.2
CQM02113.006.238323615.234.9226.7-2.40Split Dipole23.89
144NX13S3.857.980323216.027.7218.3-1.57Split Dipole23.9
144NX14!3.857.980323216.037.5221.7-1.58Split Dipole18.7
XX144.08.3283216.231.4221.4-1.41Split Dipole18.6
WS2154464.469.25283216.528.3223.4-1.27Split Dipole10.2

70CM Band - 432MHz...

Design IDλBoom
(m)
BW
Az°
BW
El°
Gain
(dBi)
F/B
(dB)
* Ta (°K)
@ 30° Elev
* G/Ta (dB/°K)
@ 30° Elev
DEQ-factor
(Avg)
4323WL503.02.092323615.330.236.45.63Split Dipole16.4
WS7154464.463.093282816.728.234.17.33Split Dipole9.2
WS718562!5.623.9282817.53230.78.52Split Dipole21.7

 

Warning:
Note * = 4 x Yagis (f = 144.1MHz or 432.1MHz)
Note ! = Alternative or special element sizes available, check .nec files

 



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