CSVHFS 1997 Noise Figure Results

Central States VHF Society

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!

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