Thanks for the link Bj=F6rn.
I'm not sure I did understand all of it though. :)
I did solder my cables yesterday without the "bridge" that my other cables
had. I soldered the shield to pin 1 in all connectors and no more. It made
a huge difference. I didn't hear one cellphone signal in all evening I was
out recording. I even provoked it by sending messages and emails holding
the phone an inch from the cable. With my old cable I often throw my phone
a few meters away from me in desperation to get rid of the signals...
I don't know how much the new cable have to do with it?
-----
H=E5kan
Den 2012-05-12 19.11 skrev Bj=F6rn Eriksson <>:
>Hello,
>there is a lot to be said about balanced audio standards and also this
>specific question you point out, about pin 1 connection to the
>earth/shiled/housing - or not. I leave it out to others to expand on these
>questions, but here is a Rane pdf trying to explain some of these
>considerations:
>http://www.rane.com/pdf/ranenotes/Grounding_&_Shielding_of_Audio_Devices.p
>df
>
>
>All the best,
>/Bj=F6rn Eriksson
>
>On Sat, May 12, 2012 at 10:51 AM, NordicNature
><>wrote:
>
>> **
>>
>>
>> Thank you for the help.
>> I tried to buy some flux at three different places here locally, but
>>none
>> of them was selling flux. Two of them replied that "it's flux in the
>> soldering thread, so you don't need it". I told them that I wanted to
>>buy
>> it anyway, but they didn't sell it. I probably have to buy it from
>>internet.
>>
>> Now i'm wondering about another thing.
>> I got a 5m cable that came along with my BP4025 stereo mic. I have
>>always
>> though that it was really sensitive to pick up my cellphone signals.
>>And I
>> also needed a shorter cable in some situations so I opened it up to see
>>how
>> it was soldered so I could do it the same way with the cable and neutrik
>> connectors I bought and also see why it was so sensitive to celllphone
>> signals.
>> It's a 5-pin female XLR to two 3-pin male XLR cable and it's two cables
>> that is stuck together.
>> One thing I noticed is that the shield that is soldered to the pin 1 on
>> the connectors is then "bridged" to the XLR's earth/shield on the edge
>>of
>> the XLR connector. Does that make it use recorder as the earth/shield?
>>Is
>> it good or bad to do it like that? Does the cable get more or less
>> sensitive to cellphone signals?
>>
>> I don't know if you (or maybe Jez?) can reply on this problem.
>> I have two hydrophone mic's from Jez. They have 6.3mm TR connectors.
>> They work fine if I connect them to channel 5 and 6 on my Tascam DR-680
>> recorder, but if I connect them to channel 1-4 there is a strong
>>annoying
>> signal. The difference is that the first 4 channels have combined
>>XLR/TR(S)
>> connectors.
>> I wanted to try and record under water with 192kHz out of curiosity and
>> that only works with channel 1-2. Unfortunately I can't use those
>>channels
>> since there is that "signal". Is this because it's TR and not TRS
>> connectors on the mic cables? Should I buy TRS connectors and solder
>>them
>> in a special way? Maybe use 3-pin XLR?
>> Can my recorder be broken even if using XLR connectors works fine in the
>> same channels?
>>
>> I hope you understand at least some of my questions and have time to
>> reply.
>>
>> /H=E5kan
>>
>>
>> --- In "Avocet" <> wrote:
>> >
>> > > David (or anyone else), what kind of flux do you use?
>> >
>> > H=E5kan,
>> >
>> > Electrician's flux paste. It comes in a pot or tube which will last
>> > years. Some electronic stores also stock it in tubes or in a dispenser
>> > (expensive).
>> > http://mobile.maplin.co.uk/module.aspx?moduleno=3D33849
>> > Failing that, flux is based on rosin, which is also used by violinists
>> > in a small block from music shops.
>> >
>> > I've also used plumber's flux, but it can contain acid which must be
>> > cleaned off afterwards to prevent corrosion. Elecrtician's flux should
>> > be acid-free.
>> >
>> > Tips with soldering is to keep the soldering iron tip clean and this
>> > is easier with a temperature controlled iron. Pre-tin difficult
>> > surfaces like some plug tags and clean off surplus blobs with a solder
>> > sucker of by tapping the plug on a board. When using multicore solder
>> > with a flux core, offer the solder to the join rather than on the
>> > iron, but it never gives enough flux.
>> >
>> > I have a model makers stand which I've found handy for years which has
>> > clips in arms which flex every which way which will hold plug bits
>> > while soldering. I don't know if you can still get them.
>> >
>> > David
>> >
>> > David Brinicombe
>> > North Devon, UK
>> > Cogito cogito ergo cogito sum - Ambrose Bierce
>> >
>>
>>
>>
>
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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