Today's Message Index:
----------------------
1. 07:24 AM - PC Headset compatibility (Lumkes, John H.)
2. 02:09 PM - Re: Bob Nuckolls's Z-14 with dual Lightspeed iii and SD-8 (bcondrey)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | PC Headset compatibility |
Hello,
I have a Plantronics Audio 480 headset with a boom mic and noise
isolating ear buds and am wondering what it would take (besides the
physical connectors) to use it while flying. It seems that computer
soundcards do have a bias voltage of 5V for the mic while aircraft are
in the range of 8-16V. Will this mic work as is, does it need an
adapter, or is it basically hopeless? The earphones differ in impedance
but will at least work for a quick test, and I can build an impedance
adapter using a simple part from Radio shack. Any thoughts?
John
Zenith 601HD (forever in process)
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Bob Nuckolls's Z-14 with dual Lightspeed iii and |
SD-8
Food for thought for those with dual LSE ignitions (like me). I was talking with
Klaus about his CB recommendation vs fuses and he said that the ignitions (at
least the Plasma IIIs that I have) have an internal crowbar circuit to protect
the ignition from an overvoltage event. Reason for the CB recommendation
was so that in the unlikely case of an OV event the pilot could pull the alternator
CBs, reset the ignition CBs and continue flight.
This was the first time I'd ever heard this and it scared me A LOT because I've
got mine wired through my battery buss fuse blocks (Z-14). While I've never
had a problem and haven't heard of anybody else having a problem, I plan to redo
the ignition power wiring and switch to CBs.
Bob
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=227907#227907
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|