Today's Message Index:
----------------------
1. 06:13 AM - Fw: Re: King KX145 pin out, pin 10 (Robert L. Nuckolls, III)
2. 06:40 AM - How to Correctly Implement Pitot Heat Current Sensor (Robert L. Nuckolls, III)
3. 08:55 AM - Re: Fw: Re: King KX145 pin out, pin 10 (rayj)
4. 09:14 AM - Re: data dump for Stratomaster Maxi Single E1 (Etienne Phillips)
5. 09:24 AM - Isolated shield on a bulkhead BNC connector? (Dave Saylor)
6. 09:35 AM - Re: Fw: Re: King KX145 pin out, pin 10 (rayj)
7. 12:37 PM - Re: King KX145 pin out, pin 10 (OOPS! IMAGE CORRECTION) (Robert L. Nuckolls, III)
Message 1
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| Subject: | Re: Fwd: Re: King KX145 pin out, pin 10 |
>>
>>Got a KX145 reception problem in a homebuilt. (Nav not wired for use.)
>>Transmits beautifully, but only receives up to 1/2 mile.
>>Bench checked by a shop as AOK.
>>
>>What is pin 10 on the P401 ? (The antenna is currently connected to
>>ANT only.)
>>Feels like an antenna problem. Wondering about the unused pin 10...
Emacs!
>It appears that the KX145 is among the first generation
>of Nav/Com transceivers wehrein the there is only one
>receiver . . . you can either listen to a comm channel
>or use it to navigate . . . but not both at the same time.
>
>Later radios were 1-1/2 Nav/Comm indicating that there
>is a full-up transmitter-receiver pair PLUS a separate
>nav receiver.
>
>The early nav/comms had two antennas too. The first
>was the vertical 'whisker' for transmit only; the
>second was the horizontal-V for receive only of
>either comm or nav.
>
>This explains the pin 10 connection which is the
>center conductor of your receive coax. If you're
>not connected to that pin, then receive performance
>would be VERY poor.
>
>If you don't plan to use the vor feature, then
>you can install an antenna relay . . .
>
>
>Emacs!
>
> . . . that is wired into your microphone
>push to talk switch to let you receive on
>the comm-whisker and transfer it to the
>trasmitter during talk-time.
Bob . . .
Message 2
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| Subject: | How to Correctly Implement Pitot Heat Current Sensor |
>>
>>I have the components to put together the Pitot Heat current sensor
>>but I am not completely sure I have interpreted the diagram
>>correctly. The biggest issue is the two extra pins on the Reed
>>Switch that are shown to have a resistor between then in the
>>schematic supplied with the part. As best as I can tell those two
>>pins are not used so I should be able to clip them off and forget
>>them. My best guess of the detailed schematic for the sensor is
>>shown in the graphic below. If I have it right then fine, I can go
>>ahead and fabricate the part. If not then please enlighten me so I
>>do not end up with a sensor that does not work.
>>
>>
>>Emacs!
>
>
>The Radio Shack 275-232 is a 12 volt, .5A reed RELAY.
>Emacs!
>
>
>The two EXTRA pins are for the 12 volt coil wrapped around the
>reed switch capsule. The project you're crafting converts the
>relay from a VOLTAGE operated device to a CURRENT operated
>device by ADDING a second coil of a few turns that are hooked
>in series with the load to be monitored.
>
>There are a number of load sensing relays used on type
>certificated ships. They start with a rudimentary reed
>switch capsule and add the current coil around it.
>
>Emacs!
>
>
>These capsules are quite fragile and not easy to work
>with. So using a pre-packaged capsule in an assembly
>offers some reduction in risks for damage.
>
>The short answer to your question is, ignore the
>two pins that are attached to the voltage coil.
Bob . . .
Message 3
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| Subject: | Re: Fwd: Re: King KX145 pin out, pin 10 |
Message 4
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| Subject: | Re: data dump for Stratomaster Maxi Single E1 |
Hi Henry
I've just spoken to Franz at MGL, and apparently the E-1 doesn't output any
serial data that can be logged... A real pity, considering how useful that
data would be!
Thanks
Etienne
On Saturday, September 21, 2013, henry.voris wrote:
> henry_voris@yahoo.com <javascript:;>>
>
> I am interested in collecting the data from my Stratomaster Maxi Single
> E1. Is there a way to capture the data stream for post-flight analysis?
>
> Thanks in advance.
>
> Aloha,
>
> Henry
>
> --------
> Henry
> Firefly Five-Charlie-Bravo
>
> Do Not Archive
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=408919#408919
>
>
Message 5
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| Subject: | Isolated shield on a bulkhead BNC connector? |
We had a nav reception problem in a customer's plane that turned out to be
a strange bulkhead connector. It looks like a standard connector but
during the troubleshooting process it was found to isolate each side of the
shield from each other and from the threaded barrel. We assumed it was bad
but upon closer inspection it seems to be intentionally built that way.
A standard bulkhead connector fixed the problem.
What would be the correct application for this isolated connector?
Dave Saylor
831-750-0284 CL
Message 6
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| Subject: | Re: Fwd: Re: King KX145 pin out, pin 10 |
I have a KX145 manual. It there's any info I can look up to help with
this issue, drop me a note.
Bob, I'm still in the process of scanning it so you can add it to your
collection. Just hasn't made it to the top of the priority list.
Raymond Julian
Kettle River, MN.
"And you know that I could have me a million more friends,
and all I'd have to lose is my point of view." - John Prine
On 09/23/2013 08:12 AM, Robert L. Nuckolls, III wrote:
>>>
>>> Got a KX145 reception problem in a homebuilt. (Nav not wired for use.)
>>> Transmits beautifully, but only receives up to 1/2 mile.
>>> Bench checked by a shop as AOK.
>>>
>>> What is pin 10 on the P401 ? (The antenna is currently connected to
>>> ANT only.)
>>> Feels like an antenna problem. Wondering about the unused pin 10...
>
>
>> *It appears that the KX145 is among the first generation
>> of Nav/Com transceivers wehrein the there is only one
>> receiver . . . you can either listen to a comm channel
>> or use it to navigate . . . but not both at the same time.
>>
>> Later radios were 1-1/2 Nav/Comm indicating that there
>> is a full-up transmitter-receiver pair PLUS a separate
>> nav receiver.
>>
>> The early nav/comms had two antennas too. The first
>> was the vertical 'whisker' for transmit only; the
>> second was the horizontal-V for receive only of
>> either comm or nav.
>>
>> This explains the pin 10 connection which is the
>> center conductor of your receive coax. If you're
>> not connected to that pin, then receive performance
>> would be VERY poor.
>>
>> If you don't plan to use the vor feature, then
>> you can install an antenna relay . . .
>>
>>
>>
>> . . . that is wired into your microphone
>> push to talk switch to let you receive on
>> the comm-whisker and transfer it to the
>> trasmitter during talk-time.*
>
>
> Bob . . .
>
Message 7
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| Subject: | Re: King KX145 pin out, pin 10 (OOPS! IMAGE CORRECTION) |
>>
>>Got a KX145 reception problem in a homebuilt. (Nav not wired for use.)
>>Transmits beautifully, but only receives up to 1/2 mile.
>>Bench checked by a shop as AOK.
>>
>>What is pin 10 on the P401 ? (The antenna is currently connected to
>>ANT only.)
>>Feels like an antenna problem. Wondering about the unused pin 10...
SHOULD HAVE PUT THIS MESSAGE OFF UNTIL AFTER THE SECOND
CUP OF COFFEE THIS MORNING. HERE'S THE CORRECTED IMAGE
FOR THE TWO ANTENNA CONNECTIONS TO THE KX-145 . . .
Emacs!
>It appears that the KX145 is among the first generation
>of Nav/Com transceivers wehrein the there is only one
>receiver . . . you can either listen to a comm channel
>or use it to navigate . . . but not both at the same time.
>
>Later radios were 1-1/2 Nav/Comm indicating that there
>is a full-up transmitter-receiver pair PLUS a separate
>nav receiver.
>
>The early nav/comms had two antennas too. The first
>was the vertical 'whisker' for transmit only; the
>second was the horizontal-V for receive only of
>either comm or nav.
>
>This explains the pin 10 connection which is the
>center conductor of your receive coax. If you're
>not connected to that pin, then receive performance
>would be VERY poor.
>
>If you don't plan to use the vor feature, then
>you can install an antenna relay . . .
>
>
>Emacs!
>
> . . . that is wired into your microphone
>push to talk switch to let you receive on
>the comm-whisker and transfer it to the
>trasmitter during talk-time.
Bob . . .
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