Today's Message Index:
----------------------
1. 04:28 AM - Instrument lighting, what a fool! (Ronald J. Parigoris)
2. 11:16 AM - JRC JHP-520 Nav/Com Handheld (Richard Suffoletto)
3. 11:16 AM - Re: Microair 760-N to Flightcom 403mc (Robert L. Nuckolls, III)
4. 12:13 PM - Re: JRC JHP-520 Nav/Com Handheld (Tim Olson)
5. 12:30 PM - Re: JRC JHP-520 Nav/Com Handheld (Matt Prather)
6. 12:31 PM - Re: Microair 760-N to Flightcom 403mc (Sigmo@aol.com)
7. 03:04 PM - Re: JRC JHP-520 Nav/Com Handheld (AI Nut)
8. 03:39 PM - Re: Fw: LVWM and Kilovac contactors (Gilles Thesee)
9. 06:26 PM - Re: Garmin 196 vs 295 (BobsV35B@aol.com)
10. 06:47 PM - Re: Re: KN65A DME (BobsV35B@aol.com)
11. 07:39 PM - Re: Electric hints and kinks #4 (BobsV35B@aol.com)
12. 09:28 PM - Re: Fw: LVWM and Kilovac contactors (glaesers)
13. 09:43 PM - SL-30 Intercom (Speedy11@aol.com)
14. 11:32 PM - Official Usage Guideline [Please Read] [Monthly Posting] (Matt Dralle)
Message 1
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| Subject: | Instrument lighting, what a fool! |
--> AeroElectric-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Have a raging not complete Europa build at hand. Began work on panel, and
quickly found out the lighting on this chronograph leaves much to be desired.
Nice timepiece, nice box, supplied with a 24 volt bulb and I need a 12 volt. A
std. post light is just bout the correct brightness, wrong color and "WAY TOO
MUCH HEAT" inside the instrument for my liking
http://www.aircraftspruce.com/catalog/inpages/benz.php
OK turn a piece of 1/16 G-10" to fit inside nylon spacer, strategic place and
drill 24 .031" holes, bond in 12 3MM High intensity LEDs.
OK not bad, not bad, but the Passenger gets a bit of an eyeful from the slits
on the left of the instrument. No problem Progressive have left LEDs dimmer
and right a bit hotter, fool a bit more to have the thing ramp close to the
same as the EL which is on most other stuff.
The color of the LEDs even match pretty good the EL and there is very little
heat.
There you have it.
What a fool, raging build at hand, progressively matching intensity of LEDs
for timepiece.
What a way to start off a New Year.
Ron Parigoris
Message 2
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| Subject: | JRC JHP-520 Nav/Com Handheld |
--> AeroElectric-List message posted by: "Richard Suffoletto" <rsuffoletto@hotmail.com>
Im in the market for a new hand held nav/com transceiver. Ive
searched the archives and learned a few things. However, I could not
find anything on the JRC JHP-520 Nav/Com. It seems to have a lot of
good features and comes at a reasonable price. Does anyone have any
experience with this unit? Or comments on units I should absolutely
stay away from?
Thanks
Richard
Message 3
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| Subject: | Re: Microair 760-N to Flightcom 403mc |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 05:43 PM 12/31/2004 -0500, you wrote:
>--> AeroElectric-List message posted by: Sigmo@aol.com
>
>Has anyone matched up the flightcom 403mc intercom to the microair 760-N
>transceiver.
>I've received two different pinout diagrams and niether one matches the
>schematics I have for the units.
>A working pinout diagram would sure make me feel better before I apply power
>to this combo.
Referring to MC403 manual at:
http://www.flightcom.net/pdf/403mcManual.pdf
and 760VHF manual at:
http://www.aeroelectric.com/Catalog/avionics/760imB.pdf
You connect:
MC403 "Tramnsmit Key Line" to Microair Pin 7
MC403 "Receive Audio" to Microair Pin 14
MC403 "Transmit Audio" to Microair Pin 1
MC403 "Avionics Ground" to Microair Pin 2 and
eliminate the avionics ground shown just to the
right of the aircraft radio in the MC403 wiring.
Ignore Micorair Pin 3, "COPILOT MIC HI"
Ignore all headphone, microphone and push to talk
wiring shown on the Microair wiring diagram including
the intercom wiring to pin 5.
Bob . . .
Bob . . .
Message 4
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| Subject: | Re: JRC JHP-520 Nav/Com Handheld |
--> AeroElectric-List message posted by: Tim Olson <Tim@MyRV10.com>
I have one. I like it. Haven't used others to compare to it though.
The NAV functions work, but I can't see actually ever using them, given
today's GPS's. If I'd do it all over again I'd just get a Com.
Had someone drop it off a scaffolding tower and the company was very
good about repairing it.
Tim
Richard Suffoletto wrote:
> --> AeroElectric-List message posted by: "Richard Suffoletto" <rsuffoletto@hotmail.com>
>
> Im in the market for a new hand held nav/com transceiver. Ive
> searched the archives and learned a few things. However, I could not
> find anything on the JRC JHP-520 Nav/Com. It seems to have a lot of
> good features and comes at a reasonable price. Does anyone have any
> experience with this unit? Or comments on units I should absolutely
> stay away from?
>
> Thanks
>
> Richard
>
>
Message 5
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| Subject: | Re: JRC JHP-520 Nav/Com Handheld |
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
I bought an IC-A23 for my Dad this Christmas. We took it out and
flew around with it a fair amount and were both very happy with its
performance. I will buy one for myself. BTW, I got the Sport
model, because I think it is a better value - $220 from Spruce.
Regards,
Matt-
> --> AeroElectric-List message posted by: "Richard Suffoletto"
> <rsuffoletto@hotmail.com>
>
> Im in the market for a new hand held nav/com transceiver. Ive
> searched the archives and learned a few things. However, I could not
> find anything on the JRC JHP-520 Nav/Com. It seems to have a lot of good
> features and comes at a reasonable price. Does anyone have any
> experience with this unit? Or comments on units I should absolutely stay
> away from?
>
> Thanks
>
> Richard
>
>
Message 6
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| Subject: | Re: Microair 760-N to Flightcom 403mc |
--> AeroElectric-List message posted by: Sigmo@aol.com
Bob,
Thank you, Your directions match my assumption of other documentation. We all
know what it means to "assume".
Thanks again,
Mike Sigman
Do not archive
Message 7
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| Subject: | Re: JRC JHP-520 Nav/Com Handheld |
--> AeroElectric-List message posted by: AI Nut <ainut@hiwaay.net>
I chose the Icom A23 and have been really happy with it.
Richard Suffoletto wrote:
>--> AeroElectric-List message posted by: "Richard Suffoletto" <rsuffoletto@hotmail.com>
>
>Im in the market for a new hand held nav/com transceiver. Ive
>searched the archives and learned a few things. However, I could not
>find anything on the JRC JHP-520 Nav/Com. It seems to have a lot of
>good features and comes at a reasonable price. Does anyone have any
>experience with this unit? Or comments on units I should absolutely
>stay away from?
>
>Thanks
>
>Richard
>
>
Message 8
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| Subject: | Re: LVWM and Kilovac contactors |
--> AeroElectric-List message posted by: "Gilles Thesee" <Gilles.Thesee@ac-grenoble.fr>
Hi Bob and all,
In order to pinpoint the origin of my problem with the LVWM and the Kilovac
contactors I tried four different models of relays. I ended with a
transparent case relay which revealed the problem is not with the relay.
After extensive tests I've come to the conclusion it may be the association
of the LVWM with the Kilovac contactors. For some reasons when the Kilovac
contactors are energized they seem to somehow disturb something inside the
LVWM.
More details can be found at the following URL :
http://gilles.thesee.free.fr/Elec_architecture.htm
At the moment we still can perform the flight tests but I would really
appreciate any help or workaround. In effect the LVWM is the only practical
means of informing the pilot that something may be wrong with the auxiliary
battery. And wih our electrically dependant engine this aux battery is the
last resort if the alternator quits.
Thanks for your help,
Best wishes for 2005
Gilles
----- Original Message -----
From: "Gilles Thesee" <Gilles.Thesee@ac-grenoble.fr>
Subject: Re: Fw: AeroElectric-List: LVWM and Kilovac contactors
> --> AeroElectric-List message posted by: "Gilles Thesee"
> <Gilles.Thesee@ac-grenoble.fr>
>
> Hi Bob and all,
>
> Here is the test I'm intending to conduct next week :
>
> - Change the relay : I'll replace the existing finnicky relay with an NAIS
> DK1a I happen to have in my box. It is 10 amp/ 12V relay with 8.4 VDC pick
> up voltage and 1.2 VDC drop out voltage. These values should -hopefully-
> insure correct operation everytime the e-bus is powered, regardless of any
> reasonable noise or bus voltage fluctuation.
> Otherwise what other step would you suggest ?
>
>
> Thanks,
> Gilles
>
> ----- Original Message -----
> From: "Gilles Thesee" <Gilles.Thesee@ac-grenoble.fr>
> To: <aeroelectric-list@matronics.com>
> Subject: Re: Fw: AeroElectric-List: LVWM and Kilovac contactors
>
>
>> --> AeroElectric-List message posted by: "Gilles Thesee"
> <Gilles.Thesee@ac-grenoble.fr>
>>
>> Bob,
>>
>> Thank you for responding.
>>
>> I'm mystified by your experience. I'm wondering
>> > what the Kilovac contactor uses in the way of electronics
>> > for holding current reduction and if that feature has
>> > some noise that interacts with the LVM/ABMM modules.
>> >
>>
>>
>> In fact I believe I traced the problem down to the small relay that
>> powers
>> the LVWM. I removed the LVWM fuse and the problem still seemed to be with
>> the relay. I made the same test with a different relay : same problem.
>>
>> > Just for grins, can you put your hands on one of those
>> > el-cheepo contactors. Substituting a plain-vanilla contactor
>> > for the Kilovac product would, by process of elimination,
>> > point us in the right direction.
>>
>>
>> This is what I did : I removed a standard contactor from an aerobatic
>> airplane and tested it with jumpers : no more problems, the small relay
> and
>> the LVWM operate as intended.
>> What mystifies me is that the contactor powers the e-bus, and the relay
>> should not care who's bringing power to the bus. I thought about the
>> noise
>> issue, but how come this noise disturbs only the relay in question ?
>> I'm intending to conduct any investigation needed to sort out the
>> problem.
>> Would it help to wire a diode between the plus contact and the relay coil
>> lead ?
>>
>> Thanks ,
>> Gilles
Message 9
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| Subject: | Re: Garmin 196 vs 295 |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 12/26/2004 11:10:10 P.M. Central Standard Time,
ttholen@hotmail.com writes:
As Brian has said its not as easy or quick to change as DME is, but it
can to some really awesome things. If you would like to make some
comparasions you can go to Avshop
Good Evening Tom,
All that you said makes good sense and I agree that GPSs do take time to
learn completely, but for 'one use' training, they are no more complicated than
any old UHF based DME transceiver.
However, I must mention that in order for a GPS to be used in IFR conditions
as a replacement for required DME information, the GPS has to be an IFR
approved installation and must be equipped with a current data card.
Now, having said that, there is rarely any real requirement that such
information absolutely has to be available.
With reasonable knowledge of how the system works, conditions that require
DME distances can be avoided in all but approach scenarios. Even for shooting
approaches, the lack of distance information is a planning problem rather
than an operational problem.
More equipment always adds to easier and more complete flexibility, but we
can still operate safely to the vast majority of IFR destinations with nothing
more than communications and a single VOR. Or in a very few cases, no VOR
at all but with a single ADF or a single GPS.
The idea is to understand what is installed and what that equipment's
capabilities really are!
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 10
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--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 12/26/2004 7:27:23 P.M. Central Standard Time,
brucem@att.net writes:
As practical matter we will have both kinds in our airplanes. Despite the
WAAS capable GPS's legality as the primary navigation device, FAR 91.205(d)(2)
still requires: "....navigation equipment appropriate to the ground
facilities to be used." So a VOR receiver or ADF has to back up your Garmin 480.
Good Evening Bruce,
Been gone for a week or so. Consequently I am way behind on this thread, but
I feel compelled to comment on this last point.
The FAR you reference requires that you must have equipment available to
utilize required ground based equipment.
Since the 480 is authorized as standalone navigation using only the GPS,
there is no requirement for any ground based equipment at all.
The statement: "navigation equipment appropriate to the ground facilities to
be used" only applies to cases where ground based equipment is to be used.
It does not say that you can't navigate without it.
No ground based equipment required means that no VOR, or anything else, has
to be on board.
Highly unlikely to occur since the 480 has VHF navigational capabilities,
but those capabilities are not required.
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 11
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| Subject: | Re: Electric hints and kinks #4 |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 12/26/2004 12:21:01 P.M. Central Standard Time,
VE3LVO@rac.ca writes:
VE3LVO@rac.ca
Good Evening Ferg my friend,
Remember that when you were listening to those funny sounds from the Adcock
range, you were using the tremendously improved system that replaced the
original Loop LF Range stations.
You haven't really lived until you have used a loop range when the
temperature was such that the ice was forming on the loop transmitting antenna
and the
wind was blowing strong enough to get the range legs wildly swinging to and
fro. If it got strong enough, it would blow down the wires and the signal
was lost.
Ahh YES, for the Good Old Days!!!
All it took was a low frequency receiver and a T&B to keep the beast right
side up. I'll still take the GPS!
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 12
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| Subject: | Re: Fw: LVWM and Kilovac contactors |
--> AeroElectric-List message posted by: "glaesers" <glaesers@wideopenwest.com>
Gilles,
I have a dumb question: why do you have 2 LVWMs? It's my understanding that
those modules are designed to monitor the alternator, not the batteries. The
modules trigger at something like 12.5V - above what a battery puts out, but
below what an alternator delivers. Both LVWMs should tell you exactly the
same thing - but could the problem you are having be explained if they are
triggered at slightly different voltages? Just a wild guess - if the aux
battery is fully charged and not loaded, and the LVWM is set a touch low, it
might not be triggered.
Your voltmeter seems to be connected to the main bus and the E-bus. That's
OK, but since you have LV warning you don't really need it on the main bus -
I'd connect it (with a 2 position switch) to the two hot busses (main and
aux) so that you can monitor both battery voltages during alternator out
operations.
I'm doing a 2 battery 1 alternator system for a Subaru powered RV7A - so
your architecture has a lot of similarities to mine.
Dennis Glaeser
Message 13
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--> AeroElectric-List message posted by: Speedy11@aol.com
For those of you who are using the SL-30, are you using the intercom built
into the radio? If so, are you happy with its performance? Any drawbacks? Is
volume/squelch easily controlled? Would you prefer or recommend using a
separate intercom?
Stan Sutterfield
Tampa
www.rv-8a.net
Message 14
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| Subject: | Official Usage Guideline [Please Read] [Monthly Posting] |
DNA: do not archive
--> AeroElectric-List message posted by: Matt Dralle <dralle@matronics.com>
Dear Lister,
Please read over the AeroElectric-List Usage Guidelines below. The complete
AeroElectric-List FAQ including these Usage Guidelines can be found at the
following URL:
http://www.matronics.com/FAQs/AeroElectric-List.FAQ.html
Thank you,
Matt Dralle
Matronics Email List Administrator
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