Asymod IIIs, Руководство по установке

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Microphone installation via the transceiver’s microphone jack
In most cases, especially in stations operating at
higher RF output levels, when installing a
microphone via the transceiver’s microphone jack it
is recommended to install a 10uH inductor/RF choke
in series with the microphone audio line to block
possible RF interference if there is not one already
installed.
Most transceivers employ this method of RF filtering
close to the microphone inputs jacks, therefore,
depending on the transceiver, it is possible to
intercept the audio line by splicing the audio path to
the main PCB and tapping directly into the RF choke
coming from the transceiver’s audio input
microphone jack PCB. Look out for shunt caps that
might degrade audio frequency range.
Line / Mic in for a few transceivers can be seen
starting on FIG 7A. Note: all audio cables in the
installations should be shielded.
FIG 7A. The Cobra 29 does not have an audio input
RF filter choke. You may install one as shown.
Disconnect the wire connected to pin 2. Solder one
side of L1 to pin 2. Solder a shielded wire from the
other side of L1 and connect it to the Line
In. Make sure to ground the shield to pin 1.
FIG 7B. The Cobra 25 has an audio input RF filter
choke L502. Disconnect the wire connected from
L502 to main board from the main board and
connect it to the Line In.
FIG 7C. The Cobra 2000 and Texas Ranger have an
audio input RF filter choke L404. Disconnect the wire
connected from L404 to main board from the main
board and connect it to the Line In.
FIG 7D – 7F. Cobra, Galaxy, Super Star, Magnum, RCI-Ranger, CRE, etc.
Follow Fig. 7D to 7F for the rest of the configurations following the same guidelines used above.