Tait TB8100, Руководство по обслуживанию

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TB8100 Service Manual Reciter Circuit Description 65
© Tait Electronics Limited September 2006
Figure 2.16 Identifying the circuitry on the RF board - H band
b external reference input
c mixer and post-mixer buffer
d receiver VCO
e receiver VCO trimmer
f IF tuning elements
g receiver synthesizer
h IF
i TCXO
j
audio buffers
1) exciter VCO
1! exciter VCO trimmer
1@ exciter synthesizer
1# exciter RF output
1$ FCL
1% FCL buffers
1^ power supply
1&
external reference switch/internal VCXO reference
1* AGC
1( front end 1
2) front end first helicals
2!
front end 2
2@ front end second helicals
2# receiver RF input
Note:
In order to show as much of the circuitry as possible in the
photograph, the SMD shields have been removed.
b
c
d
e
f
g
h
1$
1^
1&
1*
1(
2)
2!
2@
i
j
1)
1!
1@
1#
1%
2#