Ham Radio HF/VHF Antenna Lengths. Post #1666.

Ham Radio HF/VHF Antenna Lengths. Post #1666.

http://www.hamuniverse.com/hamantennalengths.html.

Author:  N4UJW (Hamuniverse.com).

Accessed on 03 November 2018, 0400 UTC, Post #1666.

Please click link or scroll down to read the complete artice.

Comment:  Here's a handy antenna length chart from N4UJW and the staff at Hamuniverse.com.  I copied the chart and placed it above my rig to facilitate HF/VHF antenna design and construction.  The chart covers 1/4 wave verticals, 1/2 wave dipoles, and full-wave loops.  I trust you will find the chart useful as you build new antennas for your station.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Here's the chart:

Ham Radio HF/VHF Antenna Lengths Chart in Feet
Ham Band (Meters)	Frequency (Mhz)	1/4 wave (Feet)	1/2 wave Dipole (Feet)	1 wave Loop (Feet)
160	1.800	130' 0''	260' 0''	558' 4''
	1.850	126' 6''	253' 0''	543' 3''
	1.900	123' 2''	246' 4''	528' 11''
	2.000	117' 0''	234' 0''	502' 6''
80	3.500	66' 10''	133' 9''	287' 2''
	3.750	62' 5''	124' 10''	268' 0''
	3.900	60' 0''	120' 0''	257' 8''
	4.000	58' 6''	117' 0''	251' 3''
60 Under new rules effective March 5, 2012  The maximum allowed power level WILL BE 100 Watts PEP (ERP) effective radiated power referenced to a dipole. If another type of antenna is used, the station licensee must maintain a record of either the antenna manufacturer?s data on the antenna gain or calculations of the antenna gain. The frequencies listed here are the ONLY frequencies hams can use with the appropriate license under the new rules.	5.330.5	43' 9''	87' 8''	188' 5''
	5.346.5	43' 7''	87' 5''	188' 0''
	NEW 5.357	---	87' 4"	---
	5.371.5	43' 5''	87' 1''	187' 1''
	5.403.5	43' 3''	86' 6''	186' 0''
40	7.000	33' 5''	66' 10''	143' 7''
	7.150	32' 9''	65' 5''	140' 7''
	7.300	32' 1''	64' 1''	137' 8''

Ham Band (Meters)	Frequency (Mhz)	1/4 wave  (Feet)	1/2 wave  Dipole (Feet)	1 wave  Loop (Feet)
30	10.100	23' 2''	46' 4''	99' 6''
	10.150	23' 1''	46' 1''	99' 0''
20	14.000	16' 9''	33' 5''	71' 9''
	14.150	16' 6''	33' 1''	71' 0''
	14.300	16' 4''	32' 9''	70' 3''
	14.350	16' 4''	32' 7''	70' 0''
17	18.068	12' 11''	25' 11''	55' 7''
	18.168	12' 11''	25' 9''	55' 4''
15	21.000	11' 2''	22' 3''	47' 10''
	21.200	11' 0''	22' 1''	47' 5''
	21.450	10' 11''	21' 10''	46' 10''
12	24.890	9' 5''	18' 10''	40' 5''
	24.990	9' 4''	18' 9''	40' 3''
10	28.000	8' 4''	16' 9''	35' 11''
	28.500	8' 3''	16' 5''	35' 3''
	29.700	7' 11''	15' 9''	33' 10''
Note: For 28.400Mhz use formulas below

Ham Band (Meters)	Frequency (Mhz)	1/4 wave (Feet)	1/2 wave  Dipole (Feet)	1 wave Loop (Feet)
6	50.000	4' 8''	9' 4''	21' 1''
	54.000	4' 4''	8' 8''	18' 7''
2	144.000	1' 8''	3' 3''	7' 0''
	148.000	1' 7''	3' 2''	6' 9''
Antenna length is based on the following formulas:
1/2 wave dipole (feet) = 468 / frequency in Mhz. (1/4 wave, use 234 / frequency in Mhz)
Full wave loop (feet) = 1005 / frequency in Mhz
Cut total wire length slightly longer for connecting insulators/pruning as needed for lowest swr.