[Boatanchors] Microphone cables and shields

flood at Krohne.com flood at Krohne.com
Tue Dec 14 16:48:09 EST 2004





Greetings,

This posting reminded me that I wanted to pass on that I have access to a
great double shielded two conductor cable that we use here at work as a low
signal cable.  The inner shield is a foil with drain wire and the outer
shield is solid wrapping (with drain wire) of "MU Metal".  The O.D. is a
bit big at aprox. 0.35" overall but you would be hard pressed to get any
noise related junk past the MU Metal outer shield.  It is a custom cable
made for us and I keep my eye out for odd end pieces off the spools.  If
you are ever at your wits end and want to give it a try let me know and if
I have some it's yours for the shipping cost.

John Flood KB1FQG
TASC Department
KROHNE, Inc
7 Dearborn Rd.
Peabody, MA   01960
Tel.:  978-535-6060 / 800-356-9464
Fax:   978-535-8180


                                                                                                                                               
                      George KB2Z                                                                                                              
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I want to replace a mic. cable for a high-z mic. The cable that is on the
mic. has a shielded audio mic lead and an un-shielded PTT control lead. The

audio and PTT share the shield as a common ground.
I have a length of mic. cable that I wanted to use as the replacement but
its a different type cable.
The audio and PTT control are both encased in a common shield. Is this type

of cable for low-z applications or something else? I had never seen a mic
cable that had both leads in a single shield.
Thanks in advance, George KB2Z
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