Today's Message Index:
----------------------
1. 04:10 AM - ELT antenna replacement (PGLong@aol.com)
2. 05:16 AM - Re: ELT antenna replacement (Brian Lloyd)
3. 05:47 AM - Re: ELT antenna replacement (Benford2@aol.com)
4. 06:07 AM - Transponder Converter from Serial to Gray code (Trampas)
5. 06:11 AM - MicroAir 760 Radio (Matt Jurotich)
6. 08:25 AM - Re: Crimping 22AWG PIDG terminals (Lonnie Benson)
7. 08:38 AM - Re: Antenna Question (Dan Checkoway)
8. 09:42 AM - Nuckolls' article (Fergus Kyle)
9. 10:23 AM - Re: Crimping 22AWG PIDG terminals (Robert L. Nuckolls, III)
10. 11:07 AM - Re: MicroAir 760 Radio (Fiveonepw@aol.com)
11. 04:41 PM - Re: Transponder Converter from Serial to Gray code (Joe Dubner)
12. 07:31 PM - Re: Switched Pot (Geoff Evans)
13. 07:31 PM - Shielded magneto wires - Z Figures (PeterHunt1@aol.com)
14. 10:43 PM - Re: Shielded magneto wires - Z Figures (Werner Schneider)
Message 1
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| Subject: | ELT antenna replacement |
--> AeroElectric-List message posted by: PGLong@aol.com
My AK-450 ELT antenna just broke off in the slip stream. Question I have is
can I successfully use an antenna from an old STS Loran for this service?
Looking at them, they seem to be about the same size.
Pat Long
PGLong@aol.com
N120PL
RV4
Bay City, Michigan
3CM
Message 2
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| Subject: | Re: ELT antenna replacement |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
>> My AK-450 ELT antenna just broke off in the slip stream. Question I
>> have is can I successfully use an antenna from an old STS Loran for
>> this
>> service?
>
> Probably not. The LORAN antenna is not tuned to the aviation band. It
> operates at a frequency about 1000 times lower than the band in which
> your ELT operates. The LORAN antenna may also have a built-in
> preamplifier which will block any VHF signal from getting in or out.
>
> Play it safe and install a proper antenna.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
Message 3
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| Subject: | Re: ELT antenna replacement |
--> AeroElectric-List message posted by: Benford2@aol.com
In a message dated 8/27/2004 5:10:59 AM Mountain Daylight Time,
PGLong@aol.com writes:
>
>
> My AK-450 ELT antenna just broke off in the slip stream. Question I have is
>
> can I successfully use an antenna from an old STS Loran for this service?
> Looking at them, they seem to be about the same size.
>
> Pat Long
> PGLong@aol.com
> N120PL
> RV4
> Bay City, Michigan
>
Funny you should post this. My AK450 antenna fell off on my first flight. I
bet it happens more often then we think. Anybody else have this same thing
happen too??
Ben Haas N801BH
Message 4
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| Subject: | Transponder Converter from Serial to Gray code |
--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
I am thinking about making a simple converter which converts a serial data
stream like from the Dynon to a gray code output. However I do not have a
gray code encoder handy to figure out what the output voltages are, does
anyone know?
Regards,
Trampas
www.sterntech.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Brian
Lloyd
Subject: Re: AeroElectric-List: ELT antenna replacement
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
>> My AK-450 ELT antenna just broke off in the slip stream. Question I
>> have is can I successfully use an antenna from an old STS Loran for
>> this
>> service?
>
> Probably not. The LORAN antenna is not tuned to the aviation band. It
> operates at a frequency about 1000 times lower than the band in which
> your ELT operates. The LORAN antenna may also have a built-in
> preamplifier which will block any VHF signal from getting in or out.
>
> Play it safe and install a proper antenna.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
Message 5
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| Subject: | MicroAir 760 Radio |
--> AeroElectric-List message posted by: Matt Jurotich <mjurotich@hst.nasa.gov>
I am redoing the panel on already built RV 6A, there is 8 3/4 in depth
behind the main panel to the structural sub-panel. Would the MicroAir 760
radio fit without penetration of the sub-panel? Would this radio work well
in a system with a GNX80 NavCom and a PS engineering PS 6000 mono audio
intercom?
Thanks
Matthew M. Jurotich
e-mail mail to: <mjurotich@hst.nasa.gov>
phone : 301-286-5919
Message 6
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| Subject: | Re: Crimping 22AWG PIDG terminals |
--> AeroElectric-List message posted by: "Lonnie Benson" <lonben@erols.com>
Dave,
I have and AMP crimper you can borrow.
----- Original Message -----
From: "DAVID REEL" <dreel@cox.net>
Subject: AeroElectric-List: Crimping 22AWG PIDG terminals
> --> AeroElectric-List message posted by: "DAVID REEL" <dreel@cox.net>
>
> Has anyone had problems getting a good crimp with Cleveland Tools WTC380
ratchet terminal crimper? I cannot get the 18-22 AWG terminals to firmly
grab 22AWG wire. Even doubling the wire doesn't make a firm connection. So
far I'm 0 out of 4 tries. The crimper otherwise seems good on the other
sizes but the 18-22 size is out on the far end of the tool & I'm suspecting
some flexing. Though I'm not an experienced crimper, the whole thing seems
pretty idiot proof so I can't imagine what else might be wrong. The PIDG
terminals came from B&C.
>
> Dave Reel - RV8A
>
>
Message 7
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| Subject: | Re: Antenna Question |
--> AeroElectric-List message posted by: "Dan Checkoway" <dan@rvproject.com>
> Exactly. A receiver with a wet noodle for an antenna would
> hear a marker beacon transmitter during a typical approach. The
Duuuude...somebody really needs to try that just for the record! ;-)
do not archive
)_( Dan
RV-7 N714D
http://www.rvproject.com
Message 8
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| Subject: | Nuckolls' article |
--> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
Bob,
I must tell you I've been collecting and saving your articles for
many years now, and am approaching the time when they are coming into use.
One such was the "Little Connector" article. It took me several hours to
complete ONE connector (of course I'm doing it at the tail of the aircraft
with five inches of pigtail) but I want to thank you for having taken the
trouble to publish it.
I know that next time I will be able to do it in jig time AND how
much skill you used to produce it. I had no idea the darn things were so
small!
Again many thanks and best regards,
Ferg
Europa A064
Message 9
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| Subject: | Re: Crimping 22AWG PIDG terminals |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
This question illustrates the fact that there are crimp
tools and then there are MORE crimp tools. This is why
the article at:
http://www.aeroelectric.com/articles/CrimpTools/crimptools.html
. . . was generated. Unless you purchase terminals and tools
from the same manufacturer which are stated to be compatible
with each other, then you have some investigative work to
do before you start mashing terminals onto wires for your
airplanes.
Dave's tool/terminal combination doesn't pass a rudimentary
pull test. I'd say this is very strong data suggesting that
the tool and terminals are not compatible with each other.
The Cleveland listing for this tool at:
http://cleavelandtool.com/catalog/amp.html
Says:
# Best we've ever seen.
# Easy to squeeze ratcheting crimper sets a crimp that really holds.
# Crimps 22-28, 16-18, 10-12 gauge terminals in three separate
crimping nests.
# Will not split, cut, crack the terminals.
# Makes perfect crimps every time.
# Crimps terminal and strain relief the correct amount.
# Great for aircraft electrical wiring.
The Cleveland folks didn't fall off the turnip truck yesterday.
I have to believe they've done some reasonable research into
suitability to the task. If the terminals are PIDG from
a reliable source, I'm mystified.
I'd really like to put my hands on that tool. If
you'd mail it to me I'll send it back post-hasty and
cover your outbound mailing costs.
Bob Nuckolls
6936 Bainbridge Road
Wichita, KS 67226-1008
>
> Has anyone had problems getting a good crimp with Cleveland Tools WTC380
ratchet terminal crimper? I cannot get the 18-22 AWG terminals to firmly
grab 22AWG wire. Even doubling the wire doesn't make a firm connection. So
far I'm 0 out of 4 tries. The crimper otherwise seems good on the other
sizes but the 18-22 size is out on the far end of the tool & I'm suspecting
some flexing. Though I'm not an experienced crimper, the whole thing seems
pretty idiot proof so I can't imagine what else might be wrong. The PIDG
terminals came from B&C.
>
> Dave Reel - RV8A
>
Message 10
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| Subject: | Re: MicroAir 760 Radio |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
In a message dated 8/27/04 8:12:00 AM Central Daylight Time,
mjurotich@hst.nasa.gov writes:
> Would the MicroAir 760
> radio fit without penetration of the sub-panel?
>>>>>>>>>>
The 760 is less than 5&1/2" front to rear, plus the D-sub connector you use.
Shells can be purchased with angled harness exits if you need to, or you can
just be cheap like me and cut a hole in the side of a standard straight one
for the wires to exit. The antenna coax may have a pretty good bend in it, but
a small hole in the sub-panel could be used or 90 deg adapters are available
from DigiKey if necessary. Shouldn't have any trouble squeezing it in........
Mark
Message 11
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| Subject: | Re: Transponder Converter from Serial to Gray code |
--> AeroElectric-List message posted by: Joe Dubner <jdubner@yahoo.com>
Trampas,
Funny you should mention it -- I just built such a converter.
http://home.velocitus.net/jdubner/EncoderPCB.jpg
The outputs are TTL open collector (i.e. 7407 buffer). In fact, 7407s
were used in an ancient TCI blind encoder I dissected a while back.
--
Joe
Long-EZ 821RP
Clarkston, WA
--- Trampas <tstern@nc.rr.com> wrote:
> --> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
>
> I am thinking about making a simple converter which converts a serial
> data
> stream like from the Dynon to a gray code output. However I do not
> have a
> gray code encoder handy to figure out what the output voltages are,
> does
> anyone know?
>
> Regards,
> Trampas
> www.sterntech.com
__________________________________
Message 12
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| Subject: | Re: Switched Pot |
--> AeroElectric-List message posted by: Geoff Evans <hellothaimassage@yahoo.com>
Bob.
Thanks for the response.
>>
Don't want lights? Turn them down to min output of 4v and call them "off"
<<
Regarding that.. Does the LM-317 put out more heat at at low voltage output
(dim) settings or high voltage output (bright) settings?
If it makes more heat at high settings, then no problem. If it makes more
heat at low settings, then will having the LM-317 and heatsink setting there
cooking 75% of the time result in any problems?
Thanks.
-Geoff
_______________________________
Message 13
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| Subject: | Shielded magneto wires - Z Figures |
--> AeroElectric-List message posted by: PeterHunt1@aol.com
Bob:
I need a little help understanding if I should be utilizing shielded magneto
wires in some fashion. I am wiring the LASAR ignition which Lycoming
installed on my O-360 engine. The LASAR control box has two separate unshielded
wires
(part of the LASAR low voltage control harness) which come into the cockpit
and are marked "Left magneto P lead" and "Right magneto P lead." I am
installing two 1-3 switches which will take each of these two wires to ground when
the
engine is off. During start up and engine running these two switches (left
magneto and right magneto) will be open.
I know there are fancier ways to utilize magneto switches to include the
starting circuit, etc., but that would complicate my question. So, assuming I
have the above arrangement, should I be using shielded wires in some manner?
What is the electrostatic coupling of magneto noise you speak of in Note 3 of
your book? Am I OK just running the two LASAR magneto P leads through two
switches to ground and doing so without any shielded wires? If not, please give
me
a little guidance.
Thanks for the help.
Pete Hunt
Clearwater, FL
RV-6, engine finished, wiring just about done.
Message 14
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| Subject: | Re: Shielded magneto wires - Z Figures |
--> AeroElectric-List message posted by: "Werner Schneider" <wernerschneider@compuserve.com>
Peter,
the high voltage (noise producing wires) are shielded on the Lasar and
running between the box and the magnetos, the wires running from the box to
the switches are low voltage and NOT suspect to produce any voice, mine are
running fine without any problem inside the cockpit (only noise comes from
alternator.
Werner
----- Original Message -----
From: <PeterHunt1@aol.com>
Subject: AeroElectric-List: Shielded magneto wires - Z Figures
> --> AeroElectric-List message posted by: PeterHunt1@aol.com
>
> Bob:
>
> I need a little help understanding if I should be utilizing shielded
magneto
> wires in some fashion. I am wiring the LASAR ignition which Lycoming
> installed on my O-360 engine. The LASAR control box has two separate
unshielded wires
> (part of the LASAR low voltage control harness) which come into the
cockpit
> and are marked "Left magneto P lead" and "Right magneto P lead." I am
> installing two 1-3 switches which will take each of these two wires to
ground when the
> engine is off. During start up and engine running these two switches
(left
> magneto and right magneto) will be open.
>
> I know there are fancier ways to utilize magneto switches to include the
> starting circuit, etc., but that would complicate my question. So,
assuming I
> have the above arrangement, should I be using shielded wires in some
manner?
> What is the electrostatic coupling of magneto noise you speak of in Note 3
of
> your book? Am I OK just running the two LASAR magneto P leads through two
> switches to ground and doing so without any shielded wires? If not,
please give me
> a little guidance.
>
> Thanks for the help.
>
> Pete Hunt
> Clearwater, FL
> RV-6, engine finished, wiring just about done.
>
>
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