Chapter 13 Q&A
13-9
Q52. Noise interference from FELCOM-500 to the Radio
In the case when the power of FELCOM-500 is turned on and then some noise is
produced, especially in the 27 MHz band, please implement the following
countermeasure.
The noise is being radiated from the FELCOM-500 Antenna unit.
Kit component details
No. Name of component Quantity Component code
(1) Mesh tape S 220 mm 1 00017215010
(2) Mesh tape L 300 mm 1 00017215110
(3) Clamper S (short) Aluminum 1 10035534110
(4) Clamper L (long) Aluminum 3 10035535110
(5) Screw M3 x 15 pan head 8 00016318510
(6) Washer M3 4 00016745310
(7) Nylon nut M3 locknut 4 00017226710
As for the countermeasure for interference, connect the frame for the cross EL part and
the frame to the Antenna attachment part using the mesh tape.
Mesh tape: L-150 mm
(fold the 300 mm length
in half)
Mesh tape: S-110 mm
(fold the 220 mm length
in half
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