Magnetic Loop Antenna Compare

This is a static page. For the page with filters and selection, go to the compare page.

160m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description calculator	description	description	description calculator	description	description	description	description	description	description	description	description	description	description calculator	description	description
Loop diameter D	m	1.900			1.250										1.006
Conductor diameter d	m	0.036			0.010										0.100
Loop count n	1	1			2										1
Frequency f	MHz	1.900			1.840										1.840
Intrinsic bandwidth Bint	kHz	1.72			33.11										1.83
Source of Bint		SWR = 2.62			Q webpage										S-Parameters
Inductance L	H	4.83e-06			1.18e-05										1.51e-06
Capacitance C	pF	1453			634										4953
Unloaded Q0	1	1105			56										1005
Damping resistance RT	Ohm	0.0522			2.457										0.0174
Radiation resistance RR	Ohm	0.000405			0.000267										0.000028
Loss resistance RLoss	Ohm	0.0518			2.457										0.0173
Power to antenna Pfwd	W	200			10										100
swr_min_ant	1	1.00			1.00										1.10
etaSWR_ant	%	100			100										99.8
Power antenna load Pload	W	200			10										100
Antenna efficiency η	%	0.775			0.011										0.161
Loop current I rms	A	61.90			2.02										75.80
Loop voltage Uloop rms	V	3569			275										1323
Magnetic dipole moment m	A m²	175.511			4.951										60.283
80m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description calculator	description	description calculator	description calculator	description	description	description	description	description	description calculator	description calculator	description	description	description calculator	description calculator	description
Loop diameter D	m	1.900		0.860	1.250						1.920	1.920			1.006	1.006
Conductor diameter d	m	0.036		0.010	0.010						0.073	0.073			0.100	0.100
Loop count n	1	1		2	2						1	1			1	1
Frequency f	MHz	3.624		3.650	3.650						3.500	3.650			3.573	3.573
Intrinsic bandwidth Bint	kHz	4.40		6.70	13.18						4.00	6.18			3.46	2.40
Source of Bint		SWR = 2.62		Q webpage	Q webpage						Datasheet	S-Parameters			S-Parameters	SWR = 2.62
Inductance L	H	4.83e-06		7.32e-06	1.18e-05						4.04e-06	4.04e-06			1.51e-06	1.51e-06
Capacitance C	pF	399		26	161						512	471			1314	1314
Unloaded Q0	1	824		545	277						875	590			1033	1489
Damping resistance RT	Ohm	0.134		0.308	0.978						0.102	0.157			0.0328	0.0228
Radiation resistance RR	Ohm	0.00536		0.000925	0.00413						0.00487	0.00576			0.000398	0.000398
Loss resistance RLoss	Ohm	0.128		0.307	0.974						0.0967	0.151			0.0324	0.0224
Power to antenna Pfwd	W	200		10	10						100	100			100	100
swr_min_ant	1	1.00		1.00	1.00						1.18	1.70			1.13	1.00
etaSWR_ant	%	100		100	100						99.3	93.3			99.6	100
Power antenna load Pload	W	200		10	10						99	93			100	100
Antenna efficiency η	%	4.02		0.300	0.422						4.76	3.42			1.21	1.75
Loop current I rms	A	38.70		5.70	3.20						31.27	24.38			55.11	66.27
Loop voltage Uloop rms	V	4256		957	866						2779	2259			1868	2247
Magnetic dipole moment m	A m²	109.734		6.619	7.849						90.549	70.600			43.829	52.705
60m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description calculator	description	description	description	description	description	description	description	description	description	description calculator	description	description	description calculator	description calculator	description
Loop diameter D	m	1.900										1.920			1.006	1.006
Conductor diameter d	m	0.036										0.073			0.100	0.100
Loop count n	1	1										1			1	1
Frequency f	MHz	5.362										5.362			5.358	5.357
Intrinsic bandwidth Bint	kHz	19.00										18.19			8.47	5.50
Source of Bint		SWR = 2.62										S-Parameters			S-Parameters	SWR = 2.62
Inductance L	H	4.83e-06										4.04e-06			1.51e-06	1.51e-06
Capacitance C	pF	182										218			584	585
Unloaded Q0	1	282										295			632	974
Damping resistance RT	Ohm	0.577										0.462			0.0804	0.0522
Radiation resistance RR	Ohm	0.0258										0.0269			0.00201	0.00201
Loss resistance RLoss	Ohm	0.551										0.435			0.0784	0.0502
Power to antenna Pfwd	W	200										100			100	100
swr_min_ant	1	1.00										2.61			1.06	1.00
etaSWR_ant	%	100										80.1			99.9	100
Power antenna load Pload	W	200										80			100	100
Antenna efficiency η	%	4.47										4.66			2.50	3.86
Loop current I rms	A	18.62										13.17			35.25	43.78
Loop voltage Uloop rms	V	3030										1792			1792	2225
Magnetic dipole moment m	A m²	52.807										38.124			28.036	34.816
40m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description calculator	description	description calculator	description calculator	description calculator	description	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator
Loop diameter D	m	1.900		0.860	1.250	1.376		0.940	0.940	0.940	1.920	1.920	0.662	0.662	1.006	1.006	1.128
Conductor diameter d	m	0.036		0.010	0.010	0.048		0.049	0.049	0.049	0.073	0.073	0.051	0.051	0.100	0.100	0.022
Loop count n	1	1		2	2	1		1	1	1	1	1	1	1	1	1	1
Frequency f	MHz	7.100		7.100	7.100	6.940		7.000	7.100	7.100	7.000	7.097	7.000	7.103	7.075	7.074	7.150
Intrinsic bandwidth Bint	kHz	33.20		24.23	33.33	200.00		4.00	9.72	5.90	6.00	47.17	5.00	18.60	15.50	6.70	70.69
Source of Bint		SWR = 2.62		Q webpage	Q webpage	SWR screenshot		Datasheet	S-Parameters	S-Parameters	Datasheet	S-Parameters	Datasheet	S-Parameters	S-Parameters	SWR = 2.62	SWR estimate
Inductance L	H	4.83e-06		7.32e-06	1.18e-05	2.96e-06		1.79e-06	1.79e-06	1.79e-06	4.04e-06	4.04e-06	1.10e-06	1.10e-06	1.51e-06	1.51e-06	2.85e-06
Capacitance C	pF	104		68.6	42.5	177		289	281	281	128	124	47	457	335	335	174
Unloaded Q0	1	214		293	213	35		1750	731	1203	1167	150	1400	382	456	1056	101
Damping resistance RT	Ohm	1.007		1.115	2.473	3.725		0.0449	0.109	0.0662	0.152	1.197	0.0345	0.129	0.147	0.0636	1.265
Radiation resistance RR	Ohm	0.0796		0.0133	0.0593	0.0199		0.00447	0.00473	0.00473	0.0784	0.0829	0.00110	0.00116	0.00613	0.00613	0.0101
Loss resistance RLoss	Ohm	0.928		1.101	2.414	3.705		0.0404	0.104	0.0615	0.0739	1.114	0.0334	0.127	0.141	0.0574	1.255
Power to antenna Pfwd	W	200		10	10	50		100	100	450	100	100	100	100	100	100	100
swr_min_ant	1	1.00		1.00	1.00	2.70		1.18	1.60	1.17	1.18	3.93	1.18	1.07	1.09	1.00	1.25
etaSWR_ant	%	100		100	100	78.9		99.3	94.7	99.4	99.3	64.7	99.3	99.9	99.8	100	98.8
Power antenna load Pload	W	200		10	10	39		99	95	447	99	65	99	100	100	100	99
Antenna efficiency η	%	7.90		1.19	2.40	0.421		9.89	4.11	7.10	51.1	4.48	3.16	0.904	4.16	9.64	0.790
Loop current I rms	A	14.09		3.00	2.01	3.25		47.03	29.47	82.17	25.54	7.35	53.62	27.88	26.05	39.66	8.84
Loop voltage Uloop rms	V	3036		978	1059	421		3696	2349	6550	4538	1324	2593	1368	1748	2662	1131
Magnetic dipole moment m	A m²	39.948		3.480	4.935	4.837		32.636	20.448	57.027	73.933	21.282	18.446	9.591	20.716	31.544	8.837
30m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description calculator	description	description calculator	description	description	description	description	description calculator	description calculator	description	description calculator	description	description calculator	description calculator	description calculator	description
Loop diameter D	m	1.900		0.860					0.940	0.940		1.920		0.662	1.006	1.006
Conductor diameter d	m	0.036		0.010					0.049	0.049		0.073		0.051	0.100	0.100
Loop count n	1	1		2					1	1		1		1	1	1
Frequency f	MHz	10.100		10.100					10.114	10.127		10.116		10.127	10.135	10.136
Intrinsic bandwidth Bint	kHz	154.00		39.92					27.25	9.41		57.09		36.20	28.11	9.30
Source of Bint		SWR = 2.62		Q webpage					S-Parameters	S-Parameters		S-Parameters		S-Parameters	S-Parameters	SWR = 2.62
Inductance L	H	4.83e-06		7.32e-06					1.79e-06	1.79e-06		4.04e-06		1.10e-06	1.51e-06	1.51e-06
Capacitance C	pF	51.4		33.9					139	138		61.3		225	163	163
Unloaded Q0	1	66		253					371	1076		177		280	361	1090
Damping resistance RT	Ohm	4.673		1.836					0.306	0.106		1.449		0.250	0.267	0.0882
Radiation resistance RR	Ohm	0.329		0.0544					0.0195	0.0196		0.346		0.00481	0.0259	0.0259
Loss resistance RLoss	Ohm	4.344		1.782					0.286	0.0860		1.103		0.245	0.241	0.0623
Power to antenna Pfwd	W	200		10					100	450		100		100	100	100
swr_min_ant	1	1.00		1.00					2.26	1.28		2.33		1.03	1.05	1.00
etaSWR_ant	%	100		100					85.1	98.5		84.1		100.0	99.9	100
Power antenna load Pload	W	200		10					85	443		84		100	100	100
Antenna efficiency η	%	7.05		2.96					5.43	18.3		20.1		1.92	9.70	29.4
Loop current I rms	A	6.54		2.33					16.67	64.77		7.62		19.99	19.36	33.66
Loop voltage Uloop rms	V	2005		1084					1893	7364		1956		1399	1861	3238
Magnetic dipole moment m	A m²	18.548		2.711					11.571	44.948		22.052		6.878	15.395	26.774
20m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description	description calculator	description	description	description	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator	description calculator
Loop diameter D	m		0.762				0.729	0.940	0.940	0.940	1.920	1.920	0.662	0.662	1.006	1.006	1.128
Conductor diameter d	m		0.012				0.045	0.049	0.049	0.049	0.073	0.073	0.051	0.051	0.100	0.100	0.022
Loop count n	1		1				1	1	1	1	1	1	1	1	1	1	1
Frequency f	MHz		14.072				14.074	14.000	14.159	14.173	14.000	14.156	14.000	14.168	14.077	14.074	14.196
Intrinsic bandwidth Bint	kHz		99.14				41.33	6.00	31.06	34.65	10.00	182.10	8.00	62.48	97.26	12.10	285.64
Source of Bint			S-Parameters				S-Parameters	Datasheet	S-Parameters	S-Parameters	Datasheet	S-Parameters	Datasheet	S-Parameters	S-Parameters	SWR = 2.62	SWR estimate
Inductance L	H		2.02e-06				1.31e-06	1.79e-06	1.79e-06	1.79e-06	4.04e-06	4.04e-06	1.10e-06	1.10e-06	1.51e-06	1.51e-06	2.85e-06
Capacitance C	pF		63.2				97.6	72.3	70.7	70.6	32	31.3	118	115	84.6	84.7	44.1
Unloaded Q0	1		142				341	2333	456	409	1400	78	1750	227	145	1163	50
Damping resistance RT	Ohm		1.261				0.340	0.0674	0.349	0.389	0.254	4.623	0.0553	0.432	0.923	0.115	5.111
Radiation resistance RR	Ohm		0.0316				0.0266	0.0721	0.0754	0.0757	1.292	1.352	0.0176	0.0185	0.0969	0.0968	0.159
Loss resistance RLoss	Ohm		1.229				0.314	-0.00471	0.273	0.313	-1.038	3.271	0.0376	0.413	0.826	0.0180	4.952
Power to antenna Pfwd	W		10				100	100	100	450	100	100	100	100	100	100	100
swr_min_ant	1		1.39				2.03	1.18	1.30	1.50	1.18	4.16	1.18	1.08	1.02	1.00	1.25
etaSWR_ant	%		97.4				88.5	99.3	98.3	96.0	99.3	62.5	99.3	99.9	100.0	100	98.8
Power antenna load Pload	W		10				88	99	98	432	99	63	99	100	100	100	99
Antenna efficiency η	%		2.44				6.91	106	21.3	18.7	505	18.3	31.7	4.28	10.5	84.3	3.07
Loop current I rms	A		2.78				16.12	38.40	16.79	33.33	19.78	3.68	42.39	15.21	10.41	29.51	4.40
Loop voltage Uloop rms	V		497				1869	6035	2668	5303	7030	1322	4100	1489	1390	3941	1117
Magnetic dipole moment m	A m²		1.266				6.734	26.647	11.649	23.128	57.268	10.647	14.583	5.233	8.279	23.473	4.396
17m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description	description calculator	description	description	description	description	description	description calculator	description calculator	description	description	description	description calculator	description calculator	description	description
Loop diameter D	m		0.762						0.940	0.940				0.662	1.006
Conductor diameter d	m		0.012						0.049	0.049				0.051	0.100
Loop count n	1		1						1	1				1	1
Frequency f	MHz		18.116						18.128	18.124				18.116	18.098
Intrinsic bandwidth Bint	kHz		102.71						121.52	31.28				121.03	263.43
Source of Bint			S-Parameters						S-Parameters	S-Parameters				S-Parameters	S-Parameters
Inductance L	H		2.02e-06						1.79e-06	1.79e-06				1.10e-06	1.51e-06
Capacitance C	pF		38.1						43.1	43.2				70.2	51.2
Unloaded Q0	1		176						149	579				150	69
Damping resistance RT	Ohm		1.306						1.364	0.351				0.836	2.499
Radiation resistance RR	Ohm		0.0872						0.204	0.204				0.0496	0.267
Loss resistance RLoss	Ohm		1.219						1.160	0.147				0.786	2.233
Power to antenna Pfwd	W		10						100	450				100	100
swr_min_ant	1		1.04						3.05	1.13				1.14	1.02
etaSWR_ant	%		100.0						74.3	99.6				99.6	100.0
Power antenna load Pload	W		10						74	448				100	100
Antenna efficiency η	%		6.67						11.1	57.8				5.90	10.7
Loop current I rms	A		2.77						7.38	35.73				10.91	6.33
Loop voltage Uloop rms	V		637						1502	7270				1366	1086
Magnetic dipole moment m	A m²		1.260						5.122	24.795				3.754	5.031
15m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description	description calculator	description	description	description	description calculator	description calculator	description calculator	description calculator	description	description	description calculator	description calculator	description calculator	description calculator	description
Loop diameter D	m		0.762				0.729	0.940	0.940	0.940			0.662	0.662	1.006	1.006
Conductor diameter d	m		0.012				0.045	0.049	0.049	0.049			0.051	0.051	0.100	0.100
Loop count n	1		1				1	1	1	1			1	1	1	1
Frequency f	MHz		21.253				21.127	21.000	21.226	21.209			21.000	21.235	21.075	21.074
Intrinsic bandwidth Bint	kHz		123.56				83.63	12.00	82.71	182.64			15.00	181.50	206.76	66.00
Source of Bint			S-Parameters				S-Parameters	Datasheet	S-Parameters	S-Parameters			Datasheet	S-Parameters	S-Parameters	SWR = 2.62
Inductance L	H		2.02e-06				1.31e-06	1.79e-06	1.79e-06	1.79e-06			1.10e-06	1.10e-06	1.51e-06	1.51e-06
Capacitance C	pF		27.7				43.3	32.1	31.5	31.5			52.2	51.1	37.8	37.8
Unloaded Q0	1		172				253	1750	257	116			1400	117	102	319
Damping resistance RT	Ohm		1.572				0.689	0.135	0.929	2.051			0.104	1.254	1.962	0.626
Radiation resistance RR	Ohm		0.166				0.136	0.369	0.386	0.384			0.0898	0.0939	0.493	0.493
Loss resistance RLoss	Ohm		1.406				0.553	-0.234	0.543	1.666			0.0139	1.160	1.468	0.133
Power to antenna Pfwd	W		10				100	100	100	450			100	100	100	100
swr_min_ant	1		1.03				1.70	1.18	1.50	3.12			1.18	1.29	1.02	1.00
etaSWR_ant	%		100.0				93.3	99.3	96.0	73.5			99.3	98.4	100.0	100
Power antenna load Pload	W		10				93	99	96	331			99	98	100	100
Antenna efficiency η	%		10.5				18.4	272	39.8	13.8			86.0	7.37	25.2	78.8
Loop current I rms	A		2.52				11.64	27.15	10.17	12.70			30.96	8.86	7.14	12.64
Loop voltage Uloop rms	V		682				2024	6401	2423	3024			4491	1300	1428	2527
Magnetic dipole moment m	A m²		1.149				4.860	18.842	7.055	8.814			10.650	3.048	5.678	10.050
12m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description	description calculator	description	description	description	description	description	description calculator	description calculator	description	description	description	description calculator	description calculator	description calculator	description
Loop diameter D	m		0.762						0.940	0.940				0.662	1.006	1.006
Conductor diameter d	m		0.012						0.049	0.049				0.051	0.100	0.100
Loop count n	1		1						1	1				1	1	1
Frequency f	MHz		24.947						24.937	24.917				24.911	24.922	24.915
Intrinsic bandwidth Bint	kHz		165.64						79.80	99.91				257.24	273.54	201.00
Source of Bint			S-Parameters						S-Parameters	S-Parameters				S-Parameters	S-Parameters	SWR = 2.62
Inductance L	H		2.02e-06						1.79e-06	1.79e-06				1.10e-06	1.51e-06	1.51e-06
Capacitance C	pF		20.1						22.8	22.8				37.1	27	27
Unloaded Q0	1		151						312	249				97	91	124
Damping resistance RT	Ohm		2.107						0.896	1.122				1.777	2.595	1.907
Radiation resistance RR	Ohm		0.316						0.740	0.738				0.178	0.974	0.973
Loss resistance RLoss	Ohm		1.790						0.156	0.384				1.599	1.621	0.934
Power to antenna Pfwd	W		10						100	450				100	100	100
swr_min_ant	1		1.08						1.04	1.34				1.40	1.02	1.00
etaSWR_ant	%		99.9						100.0	97.9				97.2	100.0	100
Power antenna load Pload	W		10						100	441				97	100	100
Antenna efficiency η	%		15.0						82.6	64.4				9.77	37.5	51.0
Loop current I rms	A		2.18						10.56	19.82				7.40	6.21	7.24
Loop voltage Uloop rms	V		691						2957	5544				1273	1468	1712
Magnetic dipole moment m	A m²		0.992						7.331	13.754				2.544	4.936	5.759
10m Band
Brand		Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Selfmade	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Mazzoni	Selfmade	Selfmade	Selfmade
Name		1_9_heliax	3P	0.86m n2	1.25m n2	epicenter	foil_pvc_0_71	Baby	Baby	Baby	Midi	Midi	Stealth	Stealth	Tubby indoor	Tubby outdoor	square_1m
Location		HB9ASB	HB9BPO	DK3SS	DK3SS	W6NBC	F4WDO	Datasheet	HB0SM	HB9PWD	Datasheet	HB0SM	Datasheet	HE9DJB	HB9ISP	HB9ISP	EA4AGY
Color
Picture
Links		description	description calculator	description	description	description calculator	description calculator	description calculator	description calculator	description calculator	description	description	description calculator	description calculator	description calculator	description calculator	description
Loop diameter D	m		0.762			1.376	0.729	0.940	0.940	0.940			0.662	0.662	1.006	1.006
Conductor diameter d	m		0.012			0.048	0.045	0.049	0.049	0.049			0.051	0.051	0.100	0.100
Loop count n	1		1			1	1	1	1	1			1	1	1	1
Frequency f	MHz		28.604			31.870	28.093	28.000	28.862	28.832			28.000	28.850	28.070	28.074
Intrinsic bandwidth Bint	kHz		201.91			700.00	189.16	20.00	147.82	271.39			25.00	376.28	356.89	350.00
Source of Bint			S-Parameters			SWR screenshot	S-Parameters	Datasheet	S-Parameters	S-Parameters			Datasheet	S-Parameters	S-Parameters	SWR = 2.62
Inductance L	H		2.02e-06			2.96e-06	1.31e-06	1.79e-06	1.79e-06	1.79e-06			1.10e-06	1.10e-06	1.51e-06	1.51e-06
Capacitance C	pF		15.3			8.41	24.5	18.1	17	17.1			29.4	27.7	21.3	21.3
Unloaded Q0	1		142			46	149	1400	195	106			1120	77	79	80
Damping resistance RT	Ohm		2.568			13.038	1.558	0.225	1.660	3.047			0.173	2.599	3.386	3.321
Radiation resistance RR	Ohm		0.550			9.725	0.429	1.186	1.342	1.336			0.286	0.323	1.582	1.583
Loss resistance RLoss	Ohm		2.018			3.314	1.129	-0.961	0.318	1.711			-0.113	2.277	1.804	1.738
Power to antenna Pfwd	W		10			50	100	100	100	450			100	100	100	100
swr_min_ant	1		1.11			1.10	1.05	1.18	1.43	3.16			1.18	1.65	1.02	1.00
etaSWR_ant	%		99.7			99.8	99.9	99.3	96.9	73.0			99.3	94.0	100.0	100
Power antenna load Pload	W		10			50	100	99	97	328			99	94	100	100
Antenna efficiency η	%		21.4			74.4	27.5	524	78.3	32.0			164	11.7	46.7	47.7
Loop current I rms	A		1.97			1.96	8.01	21.03	7.64	10.38			23.98	6.01	5.43	5.49
Loop voltage Uloop rms	V		717			1161	1853	6611	2476	3361			4639	1198	1447	1462
Magnetic dipole moment m	A m²		0.898			2.908	3.345	14.595	5.302	7.206			8.249	2.068	4.322	4.364

2026 Peter Märki (HB9ISP). This project is created in my free time and has no commercial background. Provided without warranty of any kind. Feedback is welcome.