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Andy Turrett

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Since: Oct 20, 2005
Posts: 78



(Msg. 31) Posted: Fri Feb 10, 2006 4:43 pm
Post subject: Re: Zaxcom Stereo Link [Login to view extended thread Info.]
Archived from groups: rec>arts>movies>production>sound (more info?)

I am still confused by why some owners of Zaxcom Stereoline units are
not seeing any level variations and some are. Anybody have any ideas?


I run my TX at 50 mW and it sits in the outside pocket of my Petrol bag
and is powered externally via my BDS box. The receiver is mostly used
on a Sony 600A with the input level wheels taped down. I am constantly
seeing the levels jump up 2 to 3 dB on the camera. So I am constantly
checking tone and often have to readjust the levels back down to 0 dB
on the camera. I don't think I have ever seen the levels go down just
up. I bought my Stereoline in June of 2004 and had new photo cells put
in by Zaxcom in May of 2005 to correct an even worse variation of
around 10dB. The new photo cells obviously helped a lot but there is
as I mention a 2 to 3 dB fluctuation. I think it is a good idea to
often check tone for many reasons but I wish that the stability of the
signal level was not one of them.

Can other Stereoline owners chime in with their experiences telling us
if they have or have not seen any variations and under what conditions?


Thanks,
Andy

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Kurt Albershardt

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Since: Jun 22, 2003
Posts: 478



(Msg. 32) Posted: Sat Feb 11, 2006 5:32 pm
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Kurt Albershardt wrote:
> gs.TakeThisOut@zaxcom.com wrote:
>
>> The current transmitter is much more power efficient than our older
>> unit and generates almost no heat. The power output is a fixed 60mW
>> vs. the older design that had 1, 25, 50, and 100mW choices.
>
>
> Are line level inputs supported?


???

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gs

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Since: Dec 06, 2004
Posts: 129



(Msg. 33) Posted: Sat Feb 11, 2006 6:04 pm
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Sorry I missed this one. Only with cables that have the pads built in.

Glenn
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Billy Sarokin

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Since: Feb 05, 2006
Posts: 331



(Msg. 34) Posted: Sat Feb 11, 2006 7:29 pm
Post subject: Re: Zaxcom Stereo Link fs [Login to view extended thread Info.]
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Oleg is correct, I can't speak about having a Zaxcom transmitter in a
bag next to 2020 receivers, though very often one of my boom guys will
hang his MMT transmitter on the cart right next to the Audio Quad Box
without any ill effects on the 2020s. And these are in the same
frequency block (all my Audio Ltds and Zaxcoms are block 26). I do use
Audio Ltd's 'Win Mod' program to select compatible freqs though. That
leads me to believe that a Zaxcom xtr on a different block will live
very nicely with Audio Ltds in close quarters.
Billy
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Oleg Kaizerman

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Since: Mar 07, 2005
Posts: 1504



(Msg. 35) Posted: Sun Feb 12, 2006 8:40 am
Post subject: Re: Zaxcom Stereo Link fs [Login to view extended thread Info.]
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your receivers sits inside metal quad box , what might tackle the zaxcom
interference and you are with external antennas
the bag system is much woundable ,
put the tx 20 cm from receiver which sits outside and check the range
and Billy , usually people close the tx when it not on duty on the cart :-)

--
Oleg Kaizerman (gebe) Hollyland

"Billy Sarokin" <bigmaho.TakeThisOut@verizon.net> wrote in message
news:1139714952.445715.73260@g47g2000cwa.googlegroups.com...
> Oleg is correct, I can't speak about having a Zaxcom transmitter in a
> bag next to 2020 receivers, though very often one of my boom guys will
> hang his MMT transmitter on the cart right next to the Audio Quad Box
> without any ill effects on the 2020s. And these are in the same
> frequency block (all my Audio Ltds and Zaxcoms are block 26). I do use
> Audio Ltd's 'Win Mod' program to select compatible freqs though. That
> leads me to believe that a Zaxcom xtr on a different block will live
> very nicely with Audio Ltds in close quarters.
> Billy
>
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Rob Lewis

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Since: Dec 23, 2005
Posts: 56



(Msg. 36) Posted: Sun Feb 12, 2006 8:44 am
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Wow, so many varying opinions. I just need a solid reliable camera
hop. I have little money to spend and can't rely on the shooters to
either have thier own, or ones that work. I would like to pick up a
Stereoline, but if the damn thing is going to cause me more problems
than pleasures, then the hell with it. I talked over the phone with
another mixer in Cleveland and he says go for it, but Thom Shafer,
who's opinion I value very much, seems to be struggling with it quite a
bit.

Any help from those of you that have the newer fixed rf transmitter
would be a big help.

Thanks again,
Rob
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gs

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Since: Dec 06, 2004
Posts: 129



(Msg. 37) Posted: Sun Feb 12, 2006 8:58 am
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With the temperature issue solved, I think you should get a Demo and
see for yourself. The Stereo link is without equal and will be an asset
for you and whoever has to carry the camera around with one less
receiver. You can arrange a Demo through one of our dealers.

Glenn
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Paul Graff

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Since: Jul 04, 2005
Posts: 28



(Msg. 38) Posted: Mon Feb 13, 2006 2:02 am
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I've had rock-solid performance from my Zaxcom stereo ENG wireless. I
use Lectro 411A for talent in Block 28 and also in Block 25. My Zaxcom
sends are in Block 21 and I've always used the RF filtering antenna.
I've heard you're okay with one block in between Lectros and Zaxcom
with the RF filtering antenna, but have no direct experience other than
above. I also haven't used them with Lectro 201s in the bag. I've
NEVER had a hit on the Zaxcom in several months of extensive use.
Thought I did once , but the tx antenna had just worked loose (It must
be checked periodically or it will work loose). I usually monitor
return on a Lectro 187, since Zaxcom would mute the audio if it had a
problem. This solves the dilemma of not knowing whether the hit was
coming or going with a wireless return.

Used it in 100+ degree Fahrenheit heat every day, all day with no
problems, but it gets really hot. Fine (very fine) for a link, but I
would never put it on talent. Too hot and also seems vulnerable to
egress of sweat. I haven't used Zaxcom's other transmitters, just the
stereoline. I have two sets of Tx and Rx. I bought the second unit a
month or so LATER (may or june 2005), with a later serial number, but
an earlier hardware version (146) with adjustable output wattage.
Strange, I guess, but still no problems.

I have Sound Devices mixers (442 and linked 302s). Attempts to make it
work with a Wendt X5 were fruitless. Horrible white noise, even after
new XLRF to Lemo 4-pin cables were made to Glenn's specs. I am not
personally a big fan of the X5 for a variety of reasons, but this is
something to be aware of and others have used them together
successfully, I am told.

I have had the output level with tone vary sometimes, not always and
never more than one bar (2-3dB) on the camera. It has been only a mild
annoyance for me, but unlike Thom, I have never used it in cold
weather. I love Lectro for talent, esp. the MM400 (even more than SM
so far), but I am a big fan of the Zaxcom as a camera link. The
operators like it too.

Paul Graff
Los Angeles
real e is sound at myname dot com
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Don Anderson

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Since: Sep 17, 2005
Posts: 21



(Msg. 39) Posted: Mon Feb 13, 2006 4:40 pm
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I have used a stereoline (with adjustable Tx power output set at 50mW)
for on a series( -2 C to 30 C) for 6 months with no tx gain problems. I
check tone at every new setup. I use it with the Tx filter (Block 26)
and with my Audio 2020s (block 24) and 302 or 442 using a common
power supply, It is essential to use the external Tx filter.There has
been no range issues though I nearly always operate within 50 meters of
the camera.
The only major frustration is the lack of a full line output on
the receiver.If you want to hear the difference between it operating at
16K bandwith and a hardwire, take the bass cut out of the Tx and play
your favourite quality CD thru the stereoline and and compare it to
the hardwired inputs into the same mixer.There is a perceptable
difference .....!

regards Don Anderson
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gs

External


Since: Dec 06, 2004
Posts: 129



(Msg. 40) Posted: Mon Feb 13, 2006 7:13 pm
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The difference you hear is most likely due to the fact we send two
channels of audio through the same 200 Khz channel that normally
carries one. Our stereo wireless has better audio quality than FM
companded systems but it does not sound like a hard wire in stereo
mode.

If you set your stereoline to mono mode that would be the better audio
quality mode as the data rate for the single channel is double the two
channel mode.

Glenn
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Kurt Albershardt

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Since: Jun 22, 2003
Posts: 478



(Msg. 41) Posted: Mon Feb 13, 2006 10:21 pm
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gs.DeleteThis@zaxcom.com wrote:
>
>> Are line level inputs supported?
>
>
> Sorry I missed this one. Only with cables that have the pads built in.


Thanks.
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Marty

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Since: Jul 02, 2003
Posts: 224



(Msg. 42) Posted: Tue Feb 14, 2006 3:46 am
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John,

I mentioned that for analog tape which can vary from one tape to the
next. Monitoring the confidence playback is very important.

But for a digital recording, minor variances in the tape formula,
ferrous particle density, bias level, etc., will not affect the digital
audio recording or playback (though it's always a good idea to record,
stop, and play back to verify proper functioning before you start a shoot).

Honestly!
Marty

John Blankenship wrote:
> Marty wrote:
>
>> I entirely agree. Any level variation in the audio chain is something
>> for concern. But I check levels at each tape change regardless,
>> looking for variations from any cause. It could be control knob
>> changes, differences in (analog) tape response, or even transcendental
>> /aural /arrogance pressure changes in the room.
>
>
> C'mon Marty, what does analog tape response have to do with it since we
> set the video camera levels via meters that measure signal going to tape
> -- not playback. (Just tryin' to keep you honest, here.)
>
> Now on the transcendental /aural /arrogance pressure changes in the
> room, you nailed it. Those are the toughest -- and most unpredictable
> -- areas we all have to deal with.
>
> John Blankenship, C.A.S.
> Indianapolis
> (email: my initials at mw daht net)
>
> 
>
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Marty

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Since: Jul 02, 2003
Posts: 224



(Msg. 43) Posted: Tue Feb 14, 2006 3:51 am
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Rob,

I welcome you to request a demo and try it for yourself.

I've never had anyone buy our Zaxcom Stereoline package and be unhappy
with it. But if that should happen, my return policy is very simple.

Marty Aitas
ATS Communications



Rob Lewis wrote:
> Wow, so many varying opinions. I just need a solid reliable camera
> hop. I have little money to spend and can't rely on the shooters to
> either have thier own, or ones that work. I would like to pick up a
> Stereoline, but if the damn thing is going to cause me more problems
> than pleasures, then the hell with it. I talked over the phone with
> another mixer in Cleveland and he says go for it, but Thom Shafer,
> who's opinion I value very much, seems to be struggling with it quite a
> bit.
>
> Any help from those of you that have the newer fixed rf transmitter
> would be a big help.
>
> Thanks again,
> Rob
>
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John Blankenship

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Since: Nov 08, 2004
Posts: 456



(Msg. 44) Posted: Tue Feb 14, 2006 12:04 pm
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Marty wrote:
> John,
>
> I mentioned that for analog tape which can vary from one tape to the
> next. Monitoring the confidence playback is very important.
>
> But for a digital recording, minor variances in the tape formula,
> ferrous particle density, bias level, etc., will not affect the digital
> audio recording or playback (though it's always a good idea to record,
> stop, and play back to verify proper functioning before you start a shoot).
>
> Honestly!
> Marty


I guess my experiences are different from yours. On a large portion of
the work I do it would slow down the process to demand a confidence
playback check at each tape change. More likely, at tape changes, it's
a rush to get the camera rolling again, therefore, my level checks are
normally confined to confirming that the meters haven't drifted --
which, as we both know, has nothing to do with tape formulation -- it
only monitors the level sent to tape. Hence, my post. I certainly
meant no offense whatsoever in my, "Just tryin' to keep you honest,
here" comment.

It's cool that you often have more flexible shoots where there is time
for numerous confirmation checks, etc. I don't see too many of those.

John Blankenship, C.A.S.
Indianapolis
(email: my initials at mw daht net)


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Andy Turrett

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Since: Oct 20, 2005
Posts: 78



(Msg. 45) Posted: Tue Feb 14, 2006 3:32 pm
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If you have ever listen to confidence monitoring (PB mode) on any
analog Beta camera you will know how hard it is to distinguish audio
quality over the timecode and motor bleed. All you can say for sure it
that there is some audio being recorded. If there is any distortion
or hum or buzz it is almost impossible to hear that when in confidence
mode. For that reason I usually listen in the EE mode. At least if
there are any buzzes, ground problems or distortion I will be able to
hear that clearly. I've never have been burnt while going hard wired
with no audio getting recorded to tape but I have been burnt with not
being able to hear a buzz or hum when in the PB confidence mode. So
you are taking a risk in either mode but I choose the EE mode.
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