---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 03/29/11: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:48 AM - New Avionics Modules from Vx Aviation (Vern Little) 2. 08:59 AM - Adapting Aviation Headset to work with a PC (jhausch) 3. 02:20 PM - Re: Adapting Aviation Headset to work with a PC (Vern Little) 4. 04:29 PM - Re: Adapting Aviation Headset to work with a PC (jhausch) 5. 08:37 PM - Re: apparent alternator issue (cjay) ________________________________ Message 1 _____________________________________ Time: 04:48:20 AM PST US From: "Vern Little" Subject: AeroElectric-List: New Avionics Modules from Vx Aviation Last week, we discussed the re-introduction of our remote Angle-of-Attack indicator, discussed at length on the list several months ago. Today, we have two new devices that may spark an interest: ================= RS-232C Buffer Board: ================= Vx Aviation today has announced the availability of the TRX-232A RS-232 buffer . Like most Vx Aviation products, this fits in a D-Sub backshell thus making it extremely compact and light. It provides either a one-to-eight fanout buffer or a dual one-to-four buffer. Primarily used for GPS systems that need to drive many other instruments or to convert the low-level outputs of portable GPS devices into compliant RS-232C level signals. Price for the TRX-232A is $100, it's $114 with a mating connector and barrel crimp pins. Full text of the Announcement: http://vx-aviation.com/documents/TRX-232A-110329.pdf ================================================ General Purpose Prototyping Board with PIC Microcontroller: ================================================ The PROTON-225 fits in a D-Sub backshell, a hallmark of most Vx Aviation products and has provisions for a PIC microcontroller for smart applications. It can be used for developing simple things like bias resistor packs for engine monitors all the way up to custom programmable devices like custom annunciator displays. For example, both DB-25 connectors can be used to form an 'inline' processor, or a row of LEDs and a transparent window can be mounted on one end to form a custom display. Price for the board only is $29, it's $39 with the connectors and backshell. Full text of the Announcement: http://vx-aviation.com/documents/PROTON-225A-110329.pdf Thanks, Vern Little Vx Aviation ________________________________ Message 2 _____________________________________ Time: 08:59:56 AM PST US Subject: AeroElectric-List: Adapting Aviation Headset to work with a PC From: "jhausch" Hello Group, I would like the noise attenuation and noise cancelling properties of an aviation headset to use with Skype on my PC. I contacted Quiet Technologies because I like the in-ear style. They referred me to RCM Headsets and the Starkey line: http://www.rcmheadsets.com/products.php?m=1 I've sent an email and am awaiting a response. I am familiar with the "roll your own" headsets threads here and on VAF, but that is generally "going the other way" (PC versions to use in aircraft) I searched and only found this thread (which, again, is the opposite of what I need) http://forums.matronics.com/viewtopic.php?t=54658&highlight=headset+computer I thought I'd throw this thread out there for additional ideas. I'll let you know what I learn from RCM, and, as a next step, I suppose we'll find out how well the Skype "squelch" works when paired with a good mic (I see that as the most likely next hurdle/issue) Thanks. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=335400#335400 ________________________________ Message 3 _____________________________________ Time: 02:20:49 PM PST US From: "Vern Little" Subject: Re: AeroElectric-List: Adapting Aviation Headset to work with a PC Go to here: http://www.flightsim.com/main/howto/adapter.htm Here are the recommended modifications: Use a 1K resistor rather than the 470, and eliminate the electrolytic capacitor on the far right (not necessary) Should work fine. Vern Little Vx Aviation -----Original Message----- From: jhausch Sent: Tuesday, March 29, 2011 7:50 AM Subject: AeroElectric-List: Adapting Aviation Headset to work with a PC Hello Group, I would like the noise attenuation and noise cancelling properties of an aviation headset to use with Skype on my PC. I contacted Quiet Technologies because I like the in-ear style. They referred me to RCM Headsets and the Starkey line: http://www.rcmheadsets.com/products.php?m=1 I've sent an email and am awaiting a response. I am familiar with the "roll your own" headsets threads here and on VAF, but that is generally "going the other way" (PC versions to use in aircraft) I searched and only found this thread (which, again, is the opposite of what I need) http://forums.matronics.com/viewtopic.php?t=54658&highlight=headset+computer I thought I'd throw this thread out there for additional ideas. I'll let you know what I learn from RCM, and, as a next step, I suppose we'll find out how well the Skype "squelch" works when paired with a good mic (I see that as the most likely next hurdle/issue) Thanks. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=335400#335400 ----- No virus found in this message. Checked by AVG - www.avg.com ________________________________ Message 4 _____________________________________ Time: 04:29:18 PM PST US Subject: AeroElectric-List: Re: Adapting Aviation Headset to work with a PC From: "jhausch" Very interesting. Thanks! Sorry, just for my own extra-cautious clarification - You mention that I would eliminate the cap. on the far right. So I only need the one cap. (oriented as shown), or do I eliminate both? Also, since I might be using this in a very noisy environment, a PTT might be a great idea. I Googled and found this note about aftermarket PTT buttons on the PS engineering website: How do I modify a portable Push to Talk switch to work in series with my headset? When using a standard portable PTT switch, when installed in series with the headset microphone line, there will be no audio present through the intercom until the PTT is pressed. This is because there are two switches inside the PTT switch, One shorts the TIP and the Sleeve which is what keys the radio. The other switch closes to allow the mic audio from the microphone to the ring of the PTT's mic plug, which will allow the audio to pass to the intercom.. To modify the PTT so that the mic audio is always present, the PTT must be taken apart and the switch that makes and breaks the microphone path will be closed permanently. Due the large variety of PTT, it is not possible for PS Engineering to provide details on how to accomplish this modification. PS Engineering does sell already modified PTT switches, call 865-988-9800 to order. The wording "One shorts the TIP and the Sleeve which is what keys the radio" is a little confusing. Shorts them to each other, Shorts both to V-, what? So a little more searching and I think what is being said is this: The PTT has two switches. The "sleeve" of the jack is at V-, the tip would be wired to mic V-. When the PTT is pressed mic V- is tied to battery V- via the sleeve. Simultaneously mic V+ is tied to the ring. In other words, when the switch is open they are opening V- and V+ to the mic. I guess they use this DPST action to keep all possible current paths open when the mic is not in use, and, perhaps, to guard against issues when plugging/unplugging? Do I have that right? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=335440#335440 ________________________________ Message 5 _____________________________________ Time: 08:37:17 PM PST US Subject: AeroElectric-List: Re: apparent alternator issue From: "cjay" thanks Jerry and Bob, exactly the kind of advice I was hoping for. Also thanks for the autozone tip, very much obliged, Read this topic online here: http://forums.matronics.com/viewtopic.php?p=335471#335471 ------------------------------------------------------------------------------------- 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.