Today's Message Index:
----------------------
1. 06:25 AM - Narco AT150 xponder light (Fox5flyer)
2. 06:31 AM - Re: Narco AT150 xponder light (Benford2@aol.com)
3. 07:18 AM - Re: Narco AT150 xponder light (earl_schroeder@juno.com)
4. 08:04 AM - Re: Narco AT150 xponder light (Matt Prather)
5. 11:39 AM - Another bad story (Fergus Kyle)
6. 12:50 PM - Re: Another bad story (Fiveonepw@aol.com)
7. 01:23 PM - Ignition Noise Problem (JPickr8358@aol.com)
8. 02:05 PM - Re: Ignition Noise Problem (Trampas)
9. 02:39 PM - Re: Another bad story (Harold Kovac)
10. 05:39 PM - Re: Another bad story (Richard Riley)
Message 1
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| Subject: | Narco AT150 xponder light |
--> AeroElectric-List message posted by: "Fox5flyer" <morid@northland.lib.mi.us>
I'm having a new indication on my transponder (Narco AT150) and wondering if
anyone has experienced this before and what (if anything) I can do about it.
In the past the interrogator light has always blinked normally when the
radar sweep passes it and the transponder has always worked fine. Recently
I've noticed the the light blinks much more and flickers as if it's being
hit by multiple radar sweeps. This has now gotten worse to the point that
sometimes while enroute the light just stays on steady much of the time with
occasional bouts of acting normally.
I recently talked to ATC while the light was on steady and they said my data
block was normal and mode C (ACK A-30) was working ok. In the area of
northern Michigan that I generally fly radar sites are few and far between
so I'm certain it's not from receiving multiple sweeps. When landing at my
very rural grass strip the light is often still full on while taxiing back.
I did notice last time when I shut off the engine while master was still on
that the light went out even though transponder was still receiving power.
So far it's been an intermittent problem, but it appears to have gradually
gotten worse.
Anybody experienced this? Any input would be appreciated.
Thanks,
Darrel
Message 2
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| Subject: | Re: Narco AT150 xponder light |
--> AeroElectric-List message posted by: Benford2@aol.com
In a message dated 11/6/2004 7:25:54 AM Mountain Standard Time,
morid@northland.lib.mi.us writes:
>
> I'm having a new indication on my transponder (Narco AT150) and wondering if
> anyone has experienced this before and what (if anything) I can do about it.
> In the past the interrogator light has always blinked normally when the
> radar sweep passes it and the transponder has always worked fine. Recently
> I've noticed the the light blinks much more and flickers as if it's being
> hit by multiple radar sweeps. This has now gotten worse to the point that
> sometimes while enroute the light just stays on steady much of the time with
> occasional bouts of acting normally.
> I recently talked to ATC while the light was on steady and they said my data
> block was normal and mode C (ACK A-30) was working ok. In the area of
> northern Michigan that I generally fly radar sites are few and far between
> so I'm certain it's not from receiving multiple sweeps. When landing at my
> very rural grass strip the light is often still full on while taxiing back.
> I did notice last time when I shut off the engine while master was still on
> that the light went out even though transponder was still receiving power.
> So far it's been an intermittent problem, but it appears to have gradually
> gotten worse.
> Anybody experienced this? Any input would be appreciated.
> Thanks,
> Darrel
>
>
Mine ahs done the same thing over the last few years, It is TCAS hits setting
off the transponder hit light. As more planes get it or you fly close to
areas with heavy biz jet traffic it will flash more often.
do not archive
Message 3
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| Subject: | Re: Narco AT150 xponder light |
--> AeroElectric-List message posted by: earl_schroeder@juno.com
On Sat, 6 Nov 2004 09:20:55 -0500 "Fox5flyer" <morid@northland.lib.mi.us>
writes:
> I'm having a new indication on my transponder (Narco AT150) and <SNIP>
I found that if mine was slightly unplugged I saw this 'blinking light'.
When I pushed the unit back in the indication returned to normal.
Perhaps a dirty connection could cause the same thing.. Earl
Do not archive.
Message 4
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| Subject: | Re: Narco AT150 xponder light |
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
> --> AeroElectric-List message posted by: Benford2@aol.com
>
> In a message dated 11/6/2004 7:25:54 AM Mountain Standard Time,
> morid@northland.lib.mi.us writes:
>
>
>>
>> I'm having a new indication on my transponder (Narco AT150) and
>> wondering if anyone has experienced this before and what (if anything)
snip
>> transponder was still receiving power. So far it's been an
>> intermittent problem, but it appears to have gradually gotten worse.
>> Anybody experienced this? Any input would be appreciated.
>> Thanks,
>> Darrel
>>
>>
>
> Mine ahs done the same thing over the last few years, It is TCAS hits
> setting off the transponder hit light. As more planes get it or you fly
> close to areas with heavy biz jet traffic it will flash more often.
>
> do not archive
>
>
That's worth checking out... It would be interesting to slid an
aluminum can over the antenna to see if blocking the signal quiets
the unit down.
Your avionics shop can also run some fairly quick tests on the unit
to see if it is behaving normally.
Regards,
Matt-
Message 5
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| Subject: | Another bad story |
--> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
"> AM, were dating our self here!"
"were" should be "we're" - apostrophe to represent missing "a". -2
"our self" should be "ourselves" - one word, and plural for "we". -6
2/10
You can do better than this.
Miss Thompson, Gr4
Message 6
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| Subject: | Re: Another bad story |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
>>>>>>>>>....ah, phhhhhttttttttt! Ya caint evin spel VOLVO!
(man, are saturdays slo around here or whut? - do not archive )
Message 7
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| Subject: | Ignition Noise Problem |
--> AeroElectric-List message posted by: JPickr8358@aol.com
Electric Listers,
I am using a Jeff Rose EI in place of the right mag on my 0-360 powered RV8.
There is a low level ignition noise that comes trough Com 1 (Garmin 430/ belly
ant) and Com 2 (Becker/ wing tip Archer ant) when receiving lower power
transmissions. It doesn't break the squelch. It varies with RPM and disappears
with the EI off. I have talked to Jeff about this and he maintains that 90% of
the time it's the ign leads arching with the less likely possibility being
noise from the power lead. I have all of the ign leads isolated from each other
by
1/2 "with non conducting material. Using aircraft plugs with gap of .035 as
recommended. There is no sign of arching along the cables or inside of the
plug barrels. The coil unit is mounted on the firewall with gnd lead to the
firewall. The power lead is shielded and the gnd pigtail is grounded to the
firewall with the shorter leads from the switch on the instrument panel to the
battery buss (cabin side of firewall) also shielded and grounded.
Would a power lead noise filter be worth a try in a situation like this? Any
other ideas would be appreciated as the noise is irritating. (Definitely do
not want to go back to another mag)
Thanks
Jim Pickrell
RV8 N186JP 68 hrs TT
Message 8
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| Subject: | Ignition Noise Problem |
--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
Jim,
If at all possible try running the radios from a separate battery power
source. This will tell you if the noise is being coupled through RF or power
wires. Also check your ground connections....
Regards,
Trampas
www.sterntech.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
JPickr8358@aol.com
Subject: AeroElectric-List: Ignition Noise Problem
--> AeroElectric-List message posted by: JPickr8358@aol.com
Electric Listers,
I am using a Jeff Rose EI in place of the right mag on my 0-360 powered RV8.
There is a low level ignition noise that comes trough Com 1 (Garmin 430/
belly
ant) and Com 2 (Becker/ wing tip Archer ant) when receiving lower power
transmissions. It doesn't break the squelch. It varies with RPM and
disappears
with the EI off. I have talked to Jeff about this and he maintains that 90%
of
the time it's the ign leads arching with the less likely possibility being
noise from the power lead. I have all of the ign leads isolated from each
other by
1/2 "with non conducting material. Using aircraft plugs with gap of .035 as
recommended. There is no sign of arching along the cables or inside of the
plug barrels. The coil unit is mounted on the firewall with gnd lead to the
firewall. The power lead is shielded and the gnd pigtail is grounded to the
firewall with the shorter leads from the switch on the instrument panel to
the
battery buss (cabin side of firewall) also shielded and grounded.
Would a power lead noise filter be worth a try in a situation like this? Any
other ideas would be appreciated as the noise is irritating. (Definitely do
not want to go back to another mag)
Thanks
Jim Pickrell
RV8 N186JP 68 hrs TT
Message 9
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| Subject: | Re: Another bad story |
--> AeroElectric-List message posted by: "Harold Kovac" <kayce@sysmatrix.net>
Right on Miss Thompson, now how about your & you're....most evertone gets it
wrong.
----- Original Message -----
From: "Fergus Kyle" <VE3LVO@rac.ca>
Subject: AeroElectric-List: Another bad story
> --> AeroElectric-List message posted by: "Fergus Kyle" <VE3LVO@rac.ca>
>
> "> AM, were dating our self here!"
>
> "were" should be "we're" - apostrophe to represent missing "a". -2
> "our self" should be "ourselves" - one word, and plural for "we". -6
>
> 2/10
> You can do better than this.
> Miss Thompson, Gr4
>
>
>
Message 10
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| Subject: | Re: Another bad story |
--> AeroElectric-List message posted by: Richard Riley <richard@riley.net>
At 02:39 PM 11/6/04, you wrote:
>--> AeroElectric-List message posted by: "Harold Kovac" <kayce@sysmatrix.net>
>
>Right on Miss Thompson, now how about your & you're....most evertone gets it
>wrong.
And while you're at it, how about flounder and founder? Trembler and
temblor?
If you understood what he wrote, it was good enough.
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