« Reply #38 on: June 08, 2006, 01:42:08 AM »
A pot would be a simple approach and you can cook in it after the gig! What more can you ask for. These silly inductors and caps will not fill an empty stomach, but a big pot with a lid. The possibilities are endless
...and what it lacks in subtlety, it more than makes up for in fashion sense!
IF you get stuck, I will take a look at your gear and see if I can fix the problem for you.
Thanks again Chris. I'll keep you in mind as a last recourse. I'm sure you've got more profitable ways to spend your time.
+T for the avatar. Put the mics *and* your head in the pot. Helps prevent messages from aliens too...
I don't know how to solve this problem. I would ask SoundProfessionals if they have heard of others experiencing it. They outta know. I'm suspicious since AT introduced the new U853 line and specificially mentions reduced RF problems.
The next step would be to put some small capacitors on the miniXLR connectors in the battery box. The pins are: 1 (ground), 2 (audio), and 3 (battery). Put a small cap between 1 and 3 and between 1 and 2. The value should be something like 22pF. That is a *really* small value, but even something bigger like 100pF (0.1nF) should work to test it out. Try that and see if it fixes the problem. I'm suggesting this because just about every regular XLR connector I see has caps from the two signal pins to ground. Maybe it just stabilizes the phantom power, but it is still worth a try on the miniXLRs.
Let us know...
Richard
Logged
Mics: Sennheiser MKE2002 (dummy head), Studio Projects C4, AT825 (unmodded), AT822 franken mic (x2), AT853(hc,c,sc,o), Senn. MKE2, Senn MKE40, Shure MX183/5, CA Cards, homebrew Panasonic and Transsound capsules.
Pre/ADC: Presonus Firepod & Firebox, DMIC20(x2), UA5(poorly-modded, AD8620+AD8512opamps), VX440
Recorders: Edirol R4, R09, IBM X24 laptop, NJB3(x2), HiMD(x2), MD(1).
** This individual has moved to user "illconditioned" **