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jpx(at)Qenesis.com
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 Posted: Thu Aug 07, 2008 12:56 pm Post subject: AeroElectric-List Digest: 4 Msgs - 08/06/08 |
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| Quote: | I'll have to talk to Tom and Brad . . . my short
visit with them last year left me with an impression
of much smarter-than-average-bears. I'd like to believe
their product is equal to or better than DO-160 qualification
recommendations for aircraft.
Of course, you could call them too!
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I would expect a "sales" answer to a call like this 
An outsider who has seem the schematics and heard the behind the
scenes stories can usually provide the more truthful answer I am
looking for.
I had a lot of trouble with the intercom on my Cessna last year. It
turned out that the headset used the mic bias voltage to power the
audio amplifier. After reverse engineering much of the intercom
circuitry, I was appalled at the design. Although it was a 4 place
intercom, the co-pilot circuitry "borrowed" some of the pilot's
circuitry during transmit. So the pilot lost mic bias voltage and the
audio disappeared whenever the co-pilot transmitted. No problem when
normal headsets were used with the intercom and no problem when these
headsets were used with other intercoms. Yuck.
The headset manufacturer was very forthcoming with the design details
necessary for me to figure this out. The intercom manufacturer
(including the president) absolutely insisted there was nothing wrong
with the design of the intercom. They were very helpful swapping out
my intercom for another to confirm it was functioning correctly, but
that did not fix the problem of course.
Having finally solved it, I encouraged the intercom manufacturer to at
least make all their tech support people aware of this issue, since
with the number of those intercoms in the field and the popularity of
the headsets being sold, the problem would certainly be an issue for
others. They treated this like an unusual case that concerned no one
else.
Based on this, I am hesitant to purchase a new audio panel for my
Tundra from this very popular intercom manufacturer. What if the same
guy designed this product too ?
Jeff Page
Dream Aircraft Tundra #10
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harley(at)AgelessWings.co
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| Posted: Thu Aug 07, 2008 1:19 pm Post subject: AeroElectric-List Digest: 4 Msgs - 08/06/08 |
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Afternoon, Jeff...
>>I would expect a "sales" answer to a call like this <<
Excuse me for inserting my two cents here, but I think I have something to offer as well.
I doubt very much that you would get a salesmen's type of reply to any call you make to Brad. Tom and Brad ARE Emagair ... not salesmen or support staff. Even though, come to think of it, they also ARE salesmen AND the support staff. And the designers, and the technicians...well you get the picture.
A more helpful and knowledgeable couple of guys I've never run across with any company. They would not pull any punches or give you any false information about their products. No one, either in their company or users, knows their products better than they do, and in this case, I relying on information from "An outsider who has seem the schematics and heard the behind the scenes stories" would not be as informed or helpful as Brad would be.
Excellent company to do business with...
As far as user stories, I think there are some here in the archives if you want to search for them...maybe also in the Canard-Aviators Yahoo group, if you belong to that as well.
Harley Dixon (biased...2 P-mags <G>)
Jeff Page wrote: [quote]--> AeroElectric-List message posted by: Jeff Page <jpx(at)Qenesis.com> (jpx(at)Qenesis.com)
| Quote: | I'll have to talk to Tom and Brad . . . my short
visit with them last year left me with an impression
of much smarter-than-average-bears. I'd like to believe
their product is equal to or better than DO-160 qualification
recommendations for aircraft.
Of course, you could call them too!
|
I would expect a "sales" answer to a call like this
An outsider who has seem the schematics and heard the behind the scenes stories can usually provide the more truthful answer I am looking for.
I had a lot of trouble with the intercom on my Cessna last year. It turned out that the headset used the mic bias voltage to power the audio amplifier. After reverse engineering much of the intercom circuitry, I was appalled at the design. Although it was a 4 place intercom, the co-pilot circuitry "borrowed" some of the pilot's circuitry during transmit. So the pilot lost mic bias voltage and the audio disappeared whenever the co-pilot transmitted. No problem when normal headsets were used with the intercom and no problem when these headsets were used with other intercoms. Yuck.
The headset manufacturer was very forthcoming with the design details necessary for me to figure this out. The intercom manufacturer (including the president) absolutely insisted there was nothing wrong with the design of the intercom. They were very helpful swapping out my intercom for another to confirm it was functioning correctly, but that did not fix the problem of course.
Having finally solved it, I encouraged the intercom manufacturer to at least make all their tech support people aware of this issue, since with the number of those intercoms in the field and the popularity of the headsets being sold, the problem would certainly be an issue for others. They treated this like an unusual case that concerned no one else.
Based on this, I am hesitant to purchase a new audio panel for my Tundra from this very popular intercom manufacturer. What if the same guy designed this product too ?
[b]
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