Wandering Ear Posted September 25, 2013 Report Share Posted September 25, 2013 Thanks Ryan. As long as the wheels are moving, I'm sure the issue will get solved. I will wait to hear back. K Quote Link to comment Share on other sites More sharing options...
studiomprd Posted September 25, 2013 Report Share Posted September 25, 2013 " Now I don't feel comfortable using it until... " personally, I'd be OK with using it in locations where it is performing properly, but that is my personal choice... Quote Link to comment Share on other sites More sharing options...
Andy P Posted September 25, 2013 Report Share Posted September 25, 2013 I spoke to Sound Network in the UK. They're the UK distributors for DPA. There's a big event DPA are getting ready for, they're all really busy so they said I shouldn't expect any news until next week. I forwarded the link to this thread to Sound Network, and it has been passed onto the service department at DPA. This was the first time that they had heard of any issues. Quote Link to comment Share on other sites More sharing options...
Jan McL Posted September 28, 2013 Report Share Posted September 28, 2013 New 4071's got hiss that partially abates when connector is touched. Cannot wait until the remedy is discovered. Older 4071's do not have this issue. Sent from my iPad using Tapatalk HD Quote Link to comment Share on other sites More sharing options...
Doug Beatty Posted October 8, 2013 Report Share Posted October 8, 2013 Confirming the same issue here. I have a hard wired earlier model 4063 (L02304) that is RF interference free, but the newer model (L06663) w/ DPA microdot to Lemo adapter...not so much. I already sent one back (L06450) to the UK that sounded so bad I thought it was a defective capsule and they replaced with L06663, but this one's still having issues with my TRX900s. What's even stranger is that the interference is worse on my LANC vs. LA. I could cut down on the interference on the LA by taping down the excess mic cable slack opposite from the pack, but the LANC had much higher RF interference in the same RF environment. My LANC was sent in for another issue so I'll be following the developments and hoping that DPA solves this soon. Quote Link to comment Share on other sites More sharing options...
Ryan Coomer Posted October 8, 2013 Report Share Posted October 8, 2013 Tracking shows that the bad mic will be get in DPA's hands today. I'll post an update as soon as I know more. Quote Link to comment Share on other sites More sharing options...
VASI Posted October 9, 2013 Report Share Posted October 9, 2013 Doing a test with FM modulation and no digital modulation. If the problem exist with FM modulation (Audio Ltd, Lectrosonics etc); the DPA have done a big fault. Quote Link to comment Share on other sites More sharing options...
LarryF Posted October 9, 2013 Report Share Posted October 9, 2013 Doing a test with FM modulation and no digital modulation. If the problem exist with FM modulation (Audio Ltd, Lectrosonics etc); the DPA have done a big fault. On Lectro, make sure the TA5F crimp is done as above. This dumps RF currents to the outside of the transmitter case. Best, Larry F Lectro Quote Link to comment Share on other sites More sharing options...
VASI Posted October 9, 2013 Report Share Posted October 9, 2013 Oh I mean someone who have a FM modulation Tx (from Lectro or Audio Ltd). But good remind from Larry! Quote Link to comment Share on other sites More sharing options...
soundslikejustin Posted October 10, 2013 Report Share Posted October 10, 2013 TA5F crimp.jpg On Lectro, make sure the TA5F crimp is done as above. This dumps RF currents to the outside of the transmitter case. Best, Larry F Lectro This looks the same as the 'shield to shell' arrangement with wiring for Zaxcom lavs. Similar principle, I suspect. Quote Link to comment Share on other sites More sharing options...
Ryan Coomer Posted October 10, 2013 Report Share Posted October 10, 2013 DPA USA has sent the mic to the mothership in Denmark for testing, and it is due to arrive tomorrow. I've been told that this issue is top priority and is moving to the top of their queue. We should have an update next week. Quote Link to comment Share on other sites More sharing options...
Jason Todd Posted October 25, 2013 Report Share Posted October 25, 2013 Any update? Quote Link to comment Share on other sites More sharing options...
Ryan Coomer Posted October 28, 2013 Report Share Posted October 28, 2013 DPA has our mic and a mic from the UK that has the same issue. As of this morning, the engineers are still in the process of identifying and fixing the problem. Quote Link to comment Share on other sites More sharing options...
Jason Todd Posted October 29, 2013 Report Share Posted October 29, 2013 Thanks, Ryan! Quote Link to comment Share on other sites More sharing options...
Patrick Wilcox Posted November 7, 2013 Report Share Posted November 7, 2013 Anyone hear anything about this from DPA after October 28th? Waiting on 6 4063's... Quote Link to comment Share on other sites More sharing options...
Ryan Coomer Posted November 8, 2013 Report Share Posted November 8, 2013 This is from DPA today: "I'm sorry for not keeping you up-to-date on the 4063 issue. The situation is that we are not able to establish the problem. I have asked the UK customer with the same problem for the exact model of the Zaxcom system – there are so many variants and we need to acquire a system which is similar in order to recreate the entire setup and provoke the fault" Hopefully they will have a Zaxcom test system soon. Quote Link to comment Share on other sites More sharing options...
glenn Posted November 8, 2013 Report Share Posted November 8, 2013 Any TRX900 transmitter will do the job for them. There is no difference other than power output level and that should not make any real difference. Glenn Quote Link to comment Share on other sites More sharing options...
Wandering Ear Posted November 8, 2013 Report Share Posted November 8, 2013 Thanks ryan. I find the easiest easy to recreate the issue is to coil some of the lav wire next to the transmitter body. Quote Link to comment Share on other sites More sharing options...
John Blankenship Posted November 8, 2013 Report Share Posted November 8, 2013 I had the same issue with both a TRX900 and a TRX900LANC. Quote Link to comment Share on other sites More sharing options...
Patrick Wilcox Posted November 8, 2013 Report Share Posted November 8, 2013 I have serial numbers R120893 and L06613 on order. Does anyone know if these are in the clear? Appreciate the help. Quote Link to comment Share on other sites More sharing options...
studiomprd Posted November 8, 2013 Report Share Posted November 8, 2013 " Does anyone know if these are in the clear? " I don't think so Quote Link to comment Share on other sites More sharing options...
bigmaho Posted November 8, 2013 Report Share Posted November 8, 2013 Back in the day when we were trying to convince Schoeps that they had an rfi issue with the Zaxcom radios (among other things) we discovered that using an RF signal generator with AM modulation (redundant, I know...) made the Schoeps fail every time. We took an AM signal generator, fed it with 1 K tone and tuned it to the middle of block 26 (around 680 mHz). If a Schoeps CMC6/41 got within 20 feet of it it outputted the 1K tone at high level (nothing subtle here). If DPA monitors this site, find an AM generator ! After years of denying and rfi issue, once the problem was confirmed and repeatable Schoeps moved very quickly to fix it. The had a new CMC6 out within 6 months. (well... somewhat quickly)... Billy Sarokin Quote Link to comment Share on other sites More sharing options...
Ryan Coomer Posted November 9, 2013 Report Share Posted November 9, 2013 Thanks Kelsey, Glenn, John, and Billy -- I've forwarded your responses to the DPA engineers. Quote Link to comment Share on other sites More sharing options...
bigmaho Posted November 9, 2013 Report Share Posted November 9, 2013 btw, those having issues with RFI in the DPAs, what block are you on? We (me and Glenn at Zaxcom) also found that rfi sensitivity varied by frequency. Before Schoeps modified their mics we tried building circuitry into XLR Female connectors. Something that worked at Block 21 did not work on block 26 and visa versa. Quote Link to comment Share on other sites More sharing options...
RadoStefanov Posted November 9, 2013 Author Report Share Posted November 9, 2013 Block 25 here. Quote Link to comment Share on other sites More sharing options...
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