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en:hardware:blue:amplifier:amplifier16 [2018/08/26 06:13]
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en:hardware:blue:amplifier:amplifier16 [2018/08/26 06:19] (current)
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 ====== H-field pre-amplifier PCB 16.x ====== ====== H-field pre-amplifier PCB 16.x ======
 original source(([[https://​docs.google.com/​document/​d/​1KzPZJW0ErInFtfTCmhNhSZTOpg6N2bgZDyIxkh_DRVs/​pub?​1532944531#​h.iubpod4vxyrx|Documentation System BLUE]], chapter 2.2.2)) original source(([[https://​docs.google.com/​document/​d/​1KzPZJW0ErInFtfTCmhNhSZTOpg6N2bgZDyIxkh_DRVs/​pub?​1532944531#​h.iubpod4vxyrx|Documentation System BLUE]], chapter 2.2.2))
 +
 +The H-field pre-amplifier board PCB 16.x has the following THT components whose placement is obvious.
 +
 +^ image ^ count ^ part ^ note ^
 +| {{:​en:​hardware:​blue:​akl_059_03.jpg?​100|}} | 1 | Header 3-pin, Pitch 3.5mm ||
 +| {{:​en:​hardware:​blue:​akl_059_06.jpg?​100|}} | 1 | Header 6-pin, Pitch 3.5mm | (or alternatively 2 x Header 3-pin, Pitch 3.5mm) |
 +| {{:​en:​hardware:​blue:​rj45.jpg?​100|}} | 1 | RJ45 Modular Connector ||
 +
 +{{:​en:​hardware:​blue:​preamp_pcb_16_2015_06_22.jpg?​400|}}
 +
 +{{:​en:​hardware:​blue:​preamp_pcb_16_con.jpg?​400|}}\\
 +The antennas are connected to the pre-amplifier as shown above.
 +| Signals from left to right: |||||||||
 +| A-1 | A-2 | GND | B-1 | B-2 | GND | C-1 | C-2 | GND |
 +| This corresponds in the Status page of the web interface of System BLUE to |||||||||
 +| Amplifier 1 - H0, Channel A ||| Amplifier 1 - H0, Channel B ||| Amplifier 1 - H0, Channel C |||
 +| This corresponds in the Settings page of the web interface of System BLUE to |||||||||
 +| Amp 1, Channel A ||| Amp 1, Channel B ||| Amp 1, Channel C |||
 +| This corresponds in the Signals page of the web interface of System BLUE to |||||||||
 +| Channel 1A, red signal ||| Channel 1B, green signal ||| Channel 1C, yellow signal |||
 +
 +{{:​en:​hardware:​blue:​patch.jpg?​800|}}\\
 +The H-field pre-amplifier is connected with a shielded twisted pair cable (FTP, STP, S/STP, or S/FTP) to the main board. This cable should not be placed next to the network cable. Please keep a distance of at least 10 cm. The cable may have a length of up to 30 meters.
 +
 +{{:​en:​hardware:​blue:​h_jp.jpg?​400|}}\\
 +If you use loop antennas, than you should close (solder) the jumper for the corresponding channels at the back side of the board.
 +
 +If the pre-amplifier is powered, the red LED should light.