krkeenan 0 #1 January 21, 2004 A while back, there were instances of CYPRES AAD activations occurring from local radio transmissions. The manufacturer sent out little plastic shielding sleeves and later incorporated the additional shielding into the unit at its next servicing. Does anyone know if this was a true cure for this -i.e. Have there been any unexplained activations of shielded units that may have been caused by stray RFI (Radio Frequency Interference) ? Curiously, Kevin K.====================== Seasons don't fear the Reaper, nor do the Wind, the Sun, or the Rain... Quote Share this post Link to post Share on other sites
Jib 0 #2 January 21, 2004 This is what they had to say: http://www.airtec.cc/no_silver_sleeve_01-2002.htm PRESS RELEASE “Silver Sleeve” no longer required on CYPRES Wünnenberg, Germany, January 2002 Airtec GmbH, the manufacturer of the CYPRES Automatic Activation Device (AAD) for parachutists, is pleased to announce that the previously required “Silver Sleeve” radio wave protection cover is no longer required, and can be removed on the next repack of the reserve. The “Silver Sleeve” was developed in 1997 as a field retrofit means to provide an additional layer of protection to guard against strong electro-magnetic (radio) signals, and was distributed to CYPRES owners and riggers at no charge. During this same time period, a series of internal upgrades were implemented to provide even more protection against “RF pollution”. After two years of testing and experience, it was determined that CYPRES units with the internal upgrade no longer required the “silver sleeve”, and in April 1999 it was announced that new production units no longer required the sleeve. Today, all CYPRES units have the internal update, either during the original manufacturing process, or as part of the scheduled four or eight year maintenance. At this time if there are any CYPRES units without the internal upgrade, they can not be used anyway until the required four or eight year scheduled maintenance is completed. This particular internal upgrade is another example of Airtec’s continuous improvement program to make CYPRES even better and provide extra operating margin where possible. This announcement supercedes and replaces the January 1998, the April 1999, and the July 1999 bulletins concerning the “Silver Sleeve”. FFI contact Airtec GmbH (Germany) or SSK Industries, Inc. (USA) -------------------------------------------------- the depth of his depravity sickens me. -- Jerry Falwell, People v. Larry Flynt Quote Share this post Link to post Share on other sites
krkeenan 0 #3 January 21, 2004 Wow, that's a quick reply. I guess Airtec has full-time monitoring of this forum. They make a fine product, and it's good that a company-provided answer is readily available. However, I'm still curious as to whether there have been any accidental activations of CYPRES AADs since this fix was implemented ? kevin k====================== Seasons don't fear the Reaper, nor do the Wind, the Sun, or the Rain... Quote Share this post Link to post Share on other sites
PhreeZone 20 #4 January 21, 2004 Actually, that was a press release from a few years back. Email Airtec or SSK on this issue and they have all the official answers you are looking for.Yesterday is history And tomorrow is a mystery Parachutemanuals.com Quote Share this post Link to post Share on other sites
Jib 0 #5 January 21, 2004 QuoteWow, that's a quick reply. I guess Airtec has full-time monitoring of this forum. They make a fine product, and it's good that a company-provided answer is readily available. Nope, I have nothing to do with Airtec. I should've been doing work. -------------------------------------------------- the depth of his depravity sickens me. -- Jerry Falwell, People v. Larry Flynt Quote Share this post Link to post Share on other sites
relyon 0 #6 January 21, 2004 QuoteHowever, I'm still curious as to whether there have been any accidental activations of CYPRES AADs since this fix was implemented ? I'm curious if there's any information/testing/etc involving close transmission sources. Most of the 30mW walkie talkies used on the 70-way CF world record were in jumpsuit pockets less than a foot from where a Cypres would be. Bob Quote Share this post Link to post Share on other sites
diablopilot 2 #7 January 21, 2004 How many of those rigs had Cypres units?---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
krkeenan 0 #8 January 22, 2004 QuoteHow many of those rigs had Cypres units? My rig had a CYPRES and I was wearing one of the radios. I guess that would have really disrupted things to have a reserve deploy in the middle of the 70-way. However, I tested the thing repeatedly on the ground and nothing funny happened. Kevin K. Life is a ToadSucker Event====================== Seasons don't fear the Reaper, nor do the Wind, the Sun, or the Rain... Quote Share this post Link to post Share on other sites
relyon 0 #9 January 22, 2004 QuoteMy rig had a CYPRES and I was wearing one of the radios. I guess that would have really disrupted things to have a reserve deploy in the middle of the 70-way. Oh yeah that sounds like a good story, but stationed there at #49 as you were I just know you were thinking "ghost pullout..." Probably keyed your mike a couple times didn't you? I'd say I thought I saw you doing a "handle check", but that would mean I was looking down, which I wasn't. IIRC, there were somewhere between 12 and 18 radios on the record dives and usually all but one receiving. I'm not sure if Jeff Cornielius (who usually called starbursts) had an operational Cypres in his rig. Bob Quote Share this post Link to post Share on other sites
krkeenan 0 #10 January 23, 2004 Oh yeah that sounds like a good story, but stationed there at #49 as you were I just know you were thinking "ghost pullout..." Probably keyed your mike a couple times didn't you? I'd say I thought I saw you doing a "handle check", but that would mean I was looking down, which I wasn't. IIRC, there were somewhere between 12 and 18 radios on the record dives and usually all but one receiving. I'm not sure if Jeff Cornielius (who usually called starbursts) had an operational Cypres in his rig. Bob The "Ghost Pullout" would have been a nice touch. I think I would have saved that for the last jump of the series - and landed next to my car for a quick getaway. I actually did key that radio for transmissions on the 64-way. I was assigned to make the 'complete' call to Jeff. Plus, I think I made a few after breakoff from the 70-way, of the "Woo-Hoo" variety. kevin====================== Seasons don't fear the Reaper, nor do the Wind, the Sun, or the Rain... Quote Share this post Link to post Share on other sites
