---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 12/15/12: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:09 AM - SL30 intercom function (Roger & Jean Curtis) 2. 09:49 AM - Re: SL30 intercom function (Robert L. Nuckolls, III) 3. 12:39 PM - Re: SL30 intercom function (Roger & Jean Curtis) 4. 01:41 PM - Re: SL30 intercom function (Vern Little) 5. 02:31 PM - Re: SL30 intercom function (Robert L. Nuckolls, III) 6. 10:06 PM - Re: Re: Removable comm antenna (Holger Selover-Stephan) ________________________________ Message 1 _____________________________________ Time: 09:09:04 AM PST US From: "Roger & Jean Curtis" Subject: AeroElectric-List: SL30 intercom function The SL30 has a voice activated intercom function. Can this intercom be used in conjunction with an audio isolation amplifier as the system intercom? I don't see any way of putting the output of the isolation amp into the intercom. Is this doable, or is it more of a pain in the lower posterior than it is worth. Thanks for your thoughts and observations. Roger ________________________________ Message 2 _____________________________________ Time: 09:49:42 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: SL30 intercom function At 11:08 AM 12/15/2012, you wrote: > > >The SL30 has a voice activated intercom function. Can this intercom be used >in conjunction with an audio isolation amplifier as the system intercom? I >don't see any way of putting the output of the isolation amp into the >intercom. Is this doable, or is it more of a pain in the lower posterior >than it is worth. Don't know why not. Wire the ship's microphones as depicted in figure 7 of the manual. Route Nav and Comm audio to the isolation amplifier along with any other audio sources that you want to add to the mix. The SL30 integral intercomm with vox will continue to function as before except that any other audio sources will be imposed on top of audio normally heard only from the SL30 Bob . . . ________________________________ Message 3 _____________________________________ Time: 12:39:44 PM PST US From: "Roger & Jean Curtis" Subject: RE: AeroElectric-List: SL30 intercom function > >The SL30 has a voice activated intercom function. Can this intercom be used >in conjunction with an audio isolation amplifier as the system intercom? I >don't see any way of putting the output of the isolation amp into the >intercom. Is this doable, or is it more of a pain in the lower posterior >than it is worth. Don't know why not. Wire the ship's microphones as depicted in figure 7 of the manual. Route Nav and Comm audio to the isolation amplifier along with any other audio sources that you want to add to the mix. The SL30 integral intercomm with vox will continue to function as before except that any other audio sources will be imposed on top of audio normally heard only from the SL30 Lets see if I have this sorted out correctly. The mics are connected per Fig 7 and, the Pin 13 & 14 outputs go into the Isolation amp, and the headphones are then connected to the isolation amp output. I will have to weigh my options for a separate intercom. Do you know if the intercom input can be on (grounded) continuously, even during txm? Roger ________________________________ Message 4 _____________________________________ Time: 01:41:30 PM PST US From: "Vern Little" Subject: Re: AeroElectric-List: SL30 intercom function You could use the AMX-2A mixer from MakerPlane: http://makerplane.myshopify.com/collections/avionics/products/10-channel-audio-mixer-mono-amx-2a This device has a special mode that connects directly to the SL-30 Comm, thus providing a fail-safe interface. The mixer can fail and the Comm audio will continue. The mixer provides 10 inputs, four with variable level and is housed in a DB-25 backshell. Available as a pcb, kit or finished product. Cheers, Vern -----Original Message----- From: Roger & Jean Curtis Sent: Saturday, December 15, 2012 12:39 PM Subject: RE: AeroElectric-List: SL30 intercom function > >The SL30 has a voice activated intercom function. Can this intercom be used >in conjunction with an audio isolation amplifier as the system intercom? I >don't see any way of putting the output of the isolation amp into the >intercom. Is this doable, or is it more of a pain in the lower posterior >than it is worth. Don't know why not. Wire the ship's microphones as depicted in figure 7 of the manual. Route Nav and Comm audio to the isolation amplifier along with any other audio sources that you want to add to the mix. The SL30 integral intercomm with vox will continue to function as before except that any other audio sources will be imposed on top of audio normally heard only from the SL30 Lets see if I have this sorted out correctly. The mics are connected per Fig 7 and, the Pin 13 & 14 outputs go into the Isolation amp, and the headphones are then connected to the isolation amp output. I will have to weigh my options for a separate intercom. Do you know if the intercom input can be on (grounded) continuously, even during txm? Roger ----- No virus found in this message. Checked by AVG - www.avg.com ________________________________ Message 5 _____________________________________ Time: 02:31:32 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: SL30 intercom function > > >Do you know if the intercom input can be on (grounded) continuously, even >during txm? I think it can Bob . . . ________________________________ Message 6 _____________________________________ Time: 10:06:18 PM PST US From: Holger Selover-Stephan Subject: Re: AeroElectric-List: Re: Removable comm antenna On 12/12/12 4:51 PM, Robert L. Nuckolls, III wrote: > No, I'd leave the nut loose for a couple of reasons. > First, it would let you orient a bend and tighten the nut > later (this could be a finger nut made from a piece > of flat sheet with a drilled and tapped hole in the > middle but with enough O.D. to let you hand tighten. > Yeah, it would have a slight 'lengthening' effect > on the antenna which would be shortened accordingly > using SWR meter Bob, many thanks for explaining it in detail. With your suggestions in mind, I picked up some parts I had laying around and put this together: https://www.dropbox.com/sh/rylqm9cect5ndut/XyaFh-jLE2 I'll have to find someone with an SWR meter and cut it to the proper length. Then we'll see if it actually does what it's supposed to do. But it's solid, and removed in seconds. Thanks, Holger ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.