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kitfox(at)bresnan.net
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 Posted: Thu Nov 09, 2006 6:37 pm Post subject: PTT switch |
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I would like to install a push button PTT in each of my sticks ,
and I ask the help of the electric guru's on the list. I have the
sigtronics push button switches with 4 turminals and the mic
plug with 3 turminals . It will plug into a sigtronics portable intercom.
Can any one point me in the right direction ?
[quote][b]
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henrysfork1(at)msn.com
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| Posted: Thu Nov 09, 2006 7:03 pm Post subject: PTT switch |
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<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> I used exactly the same setup. I purchased a "soft" bicycle grip and installed the PTT button in the end or top which ever you prefer. It works very well.
Dee Young
Model II
N345DY
Do not archive
[quote] ---
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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| Posted: Thu Nov 09, 2006 7:28 pm Post subject: PTT switch |
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I expect the switch you have has a set of normally open contacts (NO) and a set of normally closed (NC) contacts. you will use the NO set.
Past that follow the documentation that came with your intercom.
Noel [quote]
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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| Posted: Thu Nov 09, 2006 8:07 pm Post subject: PTT switch |
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I just checked the Sigtronics site and realized the SPO intercom has a transmit switch for both the pilot and the co-pilot. Usually the co-pilot won't have a PTT switch unless the plane is used for training purposes. under normal circumstances there is no need for a passenger to operate the radio. the Intercom for both the pilot and passenger is operated by VOX.
Assuming that you are not training then install the PPT switch to your stick with the wires soldered to the NO contacts. route your PTT wire to the flight location of your intercom box. Solder a 1/4" jack to the other end of the PTT wire and plug that into the Xmit hole of the headset side you will be using. When you push the button only the headset that you have the ptt switch attached to will be heard over the air. Pushing the ptt should also cut out anything that the passenger is saying on intercom. RX ( Received transmissions) from the com radio should also cut out anything that is being said by any one on the intercom.
Assuming that I was wrong in the first assumption ( that happens ), wire the passenger side ptt the same as the pilot side and put it's jack into the passenger side XMIT receptacle. This will allow you, if instructing to operate the com radio. BTW when the passenger button is pressed the pilot will not be heard on the air unless the pilot pushes his ptt button at which time the passenger should be cut off.
Operation of the intercom should not require the use of any PTT buttons. those buttons are only to operate the com transmitter.
Wiring the intercom to your radio..... To an extent depends on the radio itself.... Panel mount or portable etc. etc..
Generally the two jacks that are attached to the two wires coming from the intercom will plug into the com's headset and mic receptacles. There should be a smaller wire that will plug into your radios PTT input. Portables usually have, I think it's a 1/8" jack receptacle.
All this should be covered in the documentation that should have come with the intercom. As in most things best RTFM.
Noel [quote]
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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lcfitt(at)sbcglobal.net
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| Posted: Fri Nov 10, 2006 7:41 am Post subject: PTT switch |
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Noel sez.
I just checked the Sigtronics site and realized the SPO intercom has a
transmit switch for both the pilot and the co-pilot. Usually the co-pilot
won't have a PTT switch unless the plane is used for training purposes.
under normal circumstances there is no need for a passenger to operate the
radio. the Intercom for both the pilot and passenger is operated by VOX.
I agree with this statement - almost, but I have found several instances
where the passenger PTT was very useful. The most recent was when I was
flying the videotaping trip under the SFO Class B and a friend was manning
the radios as I was manning the video and stick. Other times when in a
flight of several, the passenger was able to talk on the air to air
frequency which is a great touch. Frankly, I think it is a good idea to
carefully evaluate every component in the airplane as to its potential
utility as it is tons easier to add something in the building phase than in
the retrofit stage and impossible to add it in the air.
Lowell
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dave
Joined: 22 Sep 2006
Posts: 1382
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| Posted: Fri Nov 10, 2006 7:59 am Post subject: PTT switch |
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I have the SP0 22 N in My Kitfox and it just plug and play.
http://www.sigtronics.com/air/pdf/trcm2.pdf
One of the best intercom boxes you will find for 2 strokes. Little noise if
any .
Dave
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msm_9949(at)yahoo.com
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| Posted: Fri Nov 10, 2006 8:45 am Post subject: PTT switch |
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[quote][b]
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Fri Nov 10, 2006 12:14 pm Post subject: PTT switch |
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I got the Sigtronics Sport 200S (stereo...nice for CD playing) intercom
which is a panel mount...I mounted mine vertically....and I love it. It
is mounted in the panel, with the jacks mounted in my console. It seems
like you'd have to find a place for the SPO-22N to lay and then you'd
have cables laying all over the place. In fact, my future plans are to
move the jacks for my intercom to behind the seat, so the headphone
cables will all be behind me...right now the cables sometimes get in
the way of flap application.
I have PTT switches in both sticks, and these came in very handy when
receiving instruction in my plane, in that the instructor could make
the radio calls when we went to a towered airport early on.
Lynn
On Friday, November 10, 2006, at 10:59 AM, dave wrote:
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Lynn
Kitfox IV-Jabiru 2200
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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