Millimeter Wave Measurements - NTMS
Millimeter Wave Measurements - NTMS Millimeter Wave Measurements - NTMS
W5HN VK3UM Software North Texas NTMS Microwave Society WWW.NTMS.ORG 44
W5HN 1 m Winegard Offset Fed Dish with W2IMU Feedhorn built by WA5JAT North Texas NTMS Microwave Society System NF = 3.5 dB (359K) Sun Noise / cold sky = 7.2 dB w / W2IMU Feedhorn SFI = 87, 3, 0 Moon Noise / cold sky = 0.75 dB 50Ω/ cold sky = 1.2 dB, NF = 3.5 dB, Ta = 133 K Feed position still not optimized! Dew point is quite a factor in the measurements = moisture and oxygen absorption! WWW.NTMS.ORG 45
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W5HN<br />
1 m Winegard Offset Fed Dish with<br />
W2IMU Feedhorn built by WA5JAT<br />
North<br />
Texas<br />
<strong>NTMS</strong><br />
Microwave<br />
Society<br />
System NF = 3.5 dB (359K)<br />
Sun Noise / cold sky =<br />
7.2 dB w / W2IMU Feedhorn<br />
SFI = 87, 3, 0<br />
Moon Noise / cold sky =<br />
0.75 dB<br />
50Ω/ cold sky = 1.2 dB,<br />
NF = 3.5 dB, Ta = 133 K<br />
Feed position still not<br />
optimized!<br />
Dew point is quite a factor in<br />
the measurements = moisture<br />
and oxygen absorption!<br />
WWW.<strong>NTMS</strong>.ORG 45
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