1997 Noise Figure Results

1997 Noise Figure (NF) Results

Tested in Hot Springs, Arkansas - 25 July 1997

50 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WA5VJB	HB Cavity	MGF-1801		0.15	22.2
	N2CEI	Transverter	ATF-10136		0.63	20.2

144 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WA8WZG	MCM	ATF-10136		0.23	24.39
	WA8WZG	MCM	MGF-1302	LC	0.25	21.17
	KA0RYT	Homebrew Cavity	FSC-11LF	Cavity	0.25	21.3
	WD5AGO		FLC-053		0.34	24.29
	WA0RDX		NE334	LC	0.36	23.33
	WD5AGO	Homebrew	MGF-1801	LC	0.44	27.8
	WQ0P	Homebew 1/4waveCavity	MGF-1302	Cavity	0.45	18.26
	WQ0P		MGF-1302	LC	0.52	18.41
	WQ0P		MGF-1302	LC	0.56	16.35
	KB5ZUD	Homebrew	ATF-10136	LC	1.1	11.9
	W5UN	DEM Hi dynamic range conv	ATF-10136		0.99	16.82

222 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	N2CEI	Down East Microwave			0.67	18.83
	K6MYC	Down East Microwave	ATF-10136		0.77	19.14

432 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WA0RDX	Homebrew	NE334	LC	0.19	24.79
	KA0RYT	Homebrew Cavity #3	ATF-10135	Cavity	0.2	19.74
	KA0RYT	Homebrew Cavity #5	FHX-35LG	Cavity	0.22	19.9
	KA0RYT	Homebrew Cavity #4	FHX-35LG	Cavity	0.25	21.76
	KA0RYT	Homebrew Cavity #1	FHX-35LG	Cavity	0.27	21.35
	WD5AGO	Homebrew Cavity	FHC-30	Cavity	0.3	19.4
	W7QX	Homebrew	"ATF-36077,ATF-10136"	Helical Resonator	0.31	41.8
	KA0RYT	Homebrew Cavity #2	FSC-11LG	Cavity	0.34	21.36
	W7QX	Homebrew	"ATF-36077,ATF-10136"	Helical Resonator	0.35	36.2
	K5GW	W7QX Homebrew	"ATF-35176,ATF-10136"	Helical Resonator	0.36	41.26
	WW2R	KB2AH Cavity	MGF-1302	Cavity	0.37	16.06
	K5GW	WD5AGO	ATF-10136	1 stage	0.38	18.03
	K5GW	WD5AGO	ATF-10136	2 stage	0.42	27.83
	W7QX	Homebrew	"ATF-35176,ATF-10136"	Helical Resonator	0.49	36.37
	WA8WZG	Down East Microwave	ATF-10136		0.49	19.6
	N2CEI	Down East Microwave			0.64	17.76
	KB5ZUD	ARR	MGF-1302		0.92	17.33
	N0GXA	Ampire Antenna Mounted Preamp			2.23	14.66

902 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WA0RDX	Homebrew	NE334		0.26	21.3
	WA0RDX	Homebrew	MGF-4918D		0.35	24.8
	WA0RDX	Homebrew	MGF-1302		0.48	17.19
	WB5LUA	Homebrew	ATF-10135	LC	0.5	16

1296 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WA8WZG	AGO	"ATF-36077, ATF-10136"		0.26	32
	WD5AGO	AGO	"NE325, ATF-10136"		0.29	31
	K6MYC	AGO	NE321		0.31	15
	KA0RYT	KB2AH	FHX-35		0.36	19.6
	WB5LUA	LUA Homebrew	ATF-36077		0.39	22
	K5GW	AGO	"NE325, ATF-10136"		0.39	26
	VE4MA	Homebrew	ATF-10135		0.5	34.5
	KA0RYT	Homebrew 1/2 Wave Cavity	FHX-35		0.55	14
	WA8WZG	KB2AH	FHX-35		0.59	28
	K5JL	Homebrew	FHX-35		0.75	11
	WQ0P	LUA Homebrew	ATF-10135		0.85	13.6
	W8ULC	MCM	MGF-1302		0.88	14.2
	WA5VJB	PARAMP (Sam Harris)	1961 Vintage		2.4	26
	WV0K	DEM Converter			1.3	14
	KA2KQM	KK7B Homebrew Converter			4	22
	KG0MW	DEM Homebrew Converter			6.8	13.6

2304 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	DEM	LUA	ATF-36077		0.52	19.04
	N4EQT		MGF-1402		1.28	17.27
	WD5AGO	CONVERTER DEM-MGF-1412			1.74	34
	WB5LUA	CONVERTER MGA-86576			2.17	27.76

3456 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	WB5LUA	LUA	ATF-36077		0.75	12.5
	WA0BWE	LUA	ATF-36077		0.8	13

5760 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	W5ZN	LUA	ATF-36077		0.7	11.95
	N2CEI	LUA	ATF-36077		0.72	11.8
	WA0BWE	LUA	ATF-36077		0.74	10.9
	WB5LUA	LUA	ATF-36077		0.78	11.93
	WA8WZG	LUA	ATF-10136		1.96	19.6

10368 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	W5ZN	LUA	ATF-36077		0.7	11.95
	N2CEI	LUA	ATF-36077		0.72	11.8
	WA0BWE	LUA	ATF-36077		0.74	10.9
	WB5LUA	LUA	ATF-36077		0.78	11.93
	WA8WZG	LUA	ATF-10136		1.96	19.6

24192 MHz	Call	Design	Device	Input Network	NF (dB)	Gain (dB)
	W5ZN	DMC			4.58	17.67
	WB5LUA	HB Converter + t/r switch	HMMC-5023		5.58	25.58
	WB5LUA	WJ 466-6 TWT			19.6	29

Tested by WB5LUA, WA8WZG, WB5IGF, WA2VOI, K9PW, N0ATV, K0JO
HP346A Noise Source, Measurement Accuracy of system according to HP is +/- 0.2 dB!