jn1yrp noise invt 040306

The 2nd investigation:
Where the noise is coming from at JN1YRP
Where Yokosuka Research Park Yokosuka Japan

When 2004-03-06

who
Kensuke Sawada JL1GJE Katsumi Yoshinuma JA1NVF Michiharu Nakamura JI3OPT

Paul Gill AD6ZY Masanori Yamane JH3VFI Takayuki Hiroshima JA1BNW

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View of the noise on the spectrum analyzer-1 . View of the noise on the spectrum analyzer-2 . Yokosuka Research Park Amateur Radio Club Toroidal cores around coax to reduce the noise . Measuring the noise level vs antenna directions JH3VFI JA1NVF JL1GJE Measuring the noise level vs antenna directions JH3VFI JA1NVF Measuring the noise level vs antenna directions AD6ZY JL1GJE Measuring the noise level vs antenna directions JH3VFI JA1NVF AD6ZY The noise comes from South-East . . Antenna system at JN1YRP . . . Finding the source of the noise "hot spots" by using portable radio with dipole antenna on top of YRP-1 Bldg. JL1GJE JA1NVF JH3VFI View of top of YRP-1 Bldg.
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Where	Yokosuka Research Park Yokosuka Japan
When	2004-03-06
who	Kensuke Sawada JL1GJE	Katsumi Yoshinuma JA1NVF	Michiharu Nakamura JI3OPT
	Paul Gill AD6ZY	Masanori Yamane JH3VFI	Takayuki Hiroshima JA1BNW

View of the noise on the spectrum analyzer-1 .	View of the noise on the spectrum analyzer-2 .	Yokosuka Research Park Amateur Radio Club	Toroidal cores around coax to reduce the noise .
Measuring the noise level vs antenna directions JH3VFI JA1NVF JL1GJE	Measuring the noise level vs antenna directions JH3VFI JA1NVF	Measuring the noise level vs antenna directions AD6ZY JL1GJE	Measuring the noise level vs antenna directions JH3VFI JA1NVF AD6ZY
The noise comes from South-East . .	Antenna system at JN1YRP . . .	Finding the source of the noise "hot spots" by using portable radio with dipole antenna on top of YRP-1 Bldg. JL1GJE JA1NVF JH3VFI	View of top of YRP-1 Bldg.