Getting the most from your G4DDK VLNA - NTMS
Getting the most from your G4DDK VLNA - NTMS Getting the most from your G4DDK VLNA - NTMS
13cm VLNA2 Performance spread 13cm VLNA2 Noise figure Noise figure (dB) 0.4 0.35 0.3 0.25 0.2 0.15 0.1 VLNA1 VLNA2 VLNA2 VLNA2 VLNA2 VLNA2 1 2 3 4 5 6 Unit
13cm VLNA2 Gain spread 13cm VLNA2 gain spread Gain (dB) 29 28 27 26 25 24 23 22 VLNA2 VLNA2 VLNA2 VLNA2 VLNA2 VLNA1 1 2 3 4 5 6 Unit
- Page 1 and 2: Getting the most from your G4DDK VL
- Page 3 and 4: WD5AGO 23cm pre-amp
- Page 5 and 6: 23cm VLNA
- Page 7 and 8: Gain results for 23cm VLNA 1 Gain s
- Page 9 and 10: Initial attempts to improve perform
- Page 11 and 12: How’s s that Unfortunately, not u
- Page 13 and 14: Source, drain and L1/L2 for 23cm VL
- Page 15 and 16: Tune up • Set bias as described i
- Page 17 and 18: Improvement in performance - Noise
- Page 19 and 20: And • Replacing R3 (51R) with a 3
- Page 21 and 22: Noise figure bandwidth Noise figure
- Page 23 and 24: 13cm VLNA2 • Improved noise figur
- Page 25: 13cm VLNA2 Position of L1 and L2 fo
- Page 29: Thank you! More information @ WWW.G
13cm <strong>VLNA</strong>2 Gain spread<br />
13cm <strong>VLNA</strong>2 gain spread<br />
Gain (dB)<br />
29<br />
28<br />
27<br />
26<br />
25<br />
24<br />
23<br />
22<br />
<strong>VLNA</strong>2<br />
<strong>VLNA</strong>2<br />
<strong>VLNA</strong>2 <strong>VLNA</strong>2 <strong>VLNA</strong>2<br />
<strong>VLNA</strong>1<br />
1 2 3 4 5 6<br />
Unit
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