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アンテナ利得大研究 - JAIA

2.. 3.. MHz . MHz . MHz .. 4.. 5.. 1/4 .. 1/2 .. 5/8 1 .. VHF/UHF .. 6.. 7.. 8.. 1/4 / . 1/4 .. 9.. / / / .. 10.. 1 2 x 2 . 13.. 14.. 5/8 . 15.. 5/8 11 .. GP . ( ) . ( ).. 16.. [dB] . 17.. dBi dBd .. dBi dBd . [dBi] = 0 [dBd]. Gr [dBd] = Ga [dBi] [dB].. [dBd] [dB] .. 18. dBi . [ dBi ] .. [ i ] [ dBi ] .. 19. dBd . [ dBd ] .. [ d ] [ dBd ] .. 20.. W .. dB W. dB W. dB W. dB W. dB W.. 21.. 22.. VHF UHF .. 23.. 24.. 25.. 26. Q.. Q. SG7900 .. 28. A.. A.. 29. Q.. Q. X200 .. X700H .. 30. A.. A.. 31.. 32.. 33.. 1.. 34.. 2.. 35.. 3.. 36.. GP .. GP . 37.. 38.

アンテナ利得大研究 ~高利得がベストではない??~ 日本アマチュア無線機器工業会 技術委員会 2017年9月2日

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Transcription of アンテナ利得大研究 - JAIA

1 2.. 3.. MHz . MHz . MHz .. 4.. 5.. 1/4 .. 1/2 .. 5/8 1 .. VHF/UHF .. 6.. 7.. 8.. 1/4 / . 1/4 .. 9.. / / / .. 10.. 1 2 x 2 . 13.. 14.. 5/8 . 15.. 5/8 11 .. GP . ( ) . ( ).. 16.. [dB] . 17.. dBi dBd .. dBi dBd . [dBi] = 0 [dBd]. Gr [dBd] = Ga [dBi] [dB].. [dBd] [dB] .. 18. dBi . [ dBi ] .. [ i ] [ dBi ] .. 19. dBd . [ dBd ] .. [ d ] [ dBd ] .. 20.. W .. dB W. dB W. dB W. dB W. dB W.. 21.. 22.. VHF UHF .. 23.. 24.. 25.. 26. Q.. Q. SG7900 .. 28. A.. A.. 29. Q.. Q. X200 .. X700H .. 30. A.. A.. 31.. 32.. 33.. 1.. 34.. 2.. 35.. 3.. 36.. GP .. GP . 37.. 38.


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