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Sheriton

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Sheriton last won the day on May 2 2014

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About Sheriton

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  1. Sheriton

    Xd-v75 battery problemd

    I had two V70 beltpacks repaired under warranty with that exact problem. Cast members complained that the packs were burning them...
  2. Sheriton

    Xd-v75 battery problemd

    There was an issue with some early models of the beltpack that caused a partial short which would drain the batteries quickly and make the pack rather warm. That was a warranty repair as it was a known fault.
  3. Sheriton

    Chaining Antennas through receivers

    Absolutely nothing wrong with doing it that way. If you want to go slightly further than the recommended number of receivers in the daisy chain, it's better to wire them this way.
  4. Sheriton

    XD-v55 Spare parts

    Sontec are the UK distributor for spare parts.
  5. Sheriton

    XDV75 Feedback

    As it's impossible for a mic to feed back all of the time, I suspect what Hal might have been experiencing was simply the pack generating a high pitched whine that sounded like feedback. I recall that's a fault that has occurred before. On the general topic of feedback... The best way to deal with it really depends on the scenario. It starts with the full system design, including placement of speakers and choice of appropriate speakers with polar patterns to suit the application. That stage will head off many issues before they even have the chance to arise. That said, we rarely have the luxury of using the perfect speaker in the perfect position so some electronics are often necessary. If it's a conference type scenario - one person speaking at a time - an auto mic mixer is your best friend. Most digital desks have these built in nowadays and they're also available in external hardware form and software plugin form. They just listen to which person is currently speaking and reduce the gain of all the other mics to intelligently keep the overall gain of the system below the feedback threshold. Properly set up, they work wonders. If it's theatre - musical or otherwise - the standard approach is to mix line by line. Only the person who's currently speaking has their mic open; all others on stage are lower or off. It's second nature to those of us working in theatre but for anyone from a rock 'n' roll background, it seems like very hard work. (And it is!) Careful programming of DCA assignments helps enormously. It's an essential technique to keep background noise low but with the added benefit of avoiding any risk of feedback.
  6. I see no particular advantage of either A or B over the other. It depends a bit on whether you might need to deploy a single rack separately and whether you want to use the 1/2 rack unit blanking panel to front mount the BNC connections. I always use RF1 mode - it's far more robust than RF2 and although it doesn't play nicely with wifi, I'd much rather suffer slow wifi than mic dropouts. Be wary of just randomly turning up the antennae gain - too strong an RF signal is just as bad as too weak but the symptoms are less obvious. It may not be an issue for you, but I find the built in power distro in the AD8 really useful as it makes the rack wiring much neater and removes the need for a separate mains power distro in there.
  7. A strong transmission on any frequency can be problematic as it can overload the first stage of the receiver circuitry, preventing it from picking up the wanted signal. When you plug in the (shielded) BNC cable to the remote antennae, you're preventing pickup of unwanted nearby signals; the antenna connector can no longer act as an antenna once something is plugged in to it.
  8. Sheriton

    Line6 P180 Antenna Placement

    Putting the receivers & transmitters in the same rack is generally fine. As you say, it's the location of the antennae that's important.
  9. Wireless mic receivers and IEM transmitters can live together in the same rack but you must remote their respective antennae so that they're well separated. Anything that transmits on any frequency needs to be kept away from any receiver antennae. Some people are lucky and get away with it but I've seen more than once on here that people have complained of problems with their L6 kit that turned out to be caused by improper location of IEM transmitter antennae.
  10. Yeah I wish that too. I've seen plenty of compact cameras in which you can set the battery type too. I imagine it would only need to be a firmware update rather than any hardware changes. Having said that though, I just use the rechargeables for one show and then recharge them again so whatever the meter says is pretty irrelevant. 3-4 hours use in one go is easy but I wouldn't want to risk them for another 3-4 hours without recharging. I did at one point completely run down a set and note down what the mater said every hour but probably can't lay my hands on that data now!
  11. You could probably rig something up but you'd have to build it yourself. The mics need a polarising voltage which you can't get from a mixing desk.
  12. Sheriton

    Channels 12,13,&14 and antennas

    First things first. The Line 6 channel numbers are in no way related to WiFi channel numbers. This is a very common source of confusion. Each Line 6 "channel" uses either four (RF1) or two (RF2) different frequencies spread around the 2.4G band whereas the WiFi channel numbers refer to a reasonably logical set of frequencies evenly spaced across the band. What you've read about lower power modes in WiFi channels 12 & 13 is also irrelevant to Line 6 equipment. 5GHz is much more "line of sight" than 2.4G so wouldn't be a good choice for radio mics as they will inevitably be blocked by multiple bodies during use. I too have seen lots of comments from people struggling to use L6 systems effectively. For those who I've been able to help, it's always been user error; I suspect in many other cases it is too. Radio mics (of any type) are never plug & play - you always need a reasonable understanding of RF to get the best performance out of them. I regularly use up to 10 V75 systems together without issue, even in the presence of powerful WiFi access points. (I should note that that's in the UK; the ambient RF environment will doubtless be different in different countries.)
  13. It's not recommended practice but I've heard of people daisy chaining each antenna in the opposite direction to the other i.e. Antenna 1 -> RX1 A -> RX2 A -> RX3 A -> RX4 A -> RX5 A Antenna 2 -> RX5 B -> RX4 B -> RX3 B -> RX2 B -> RX1 B That way, you don't end up with one at the end of the chain that'll struggle. As with all things, if you go against the manufacturers' recommendation and things don't work reliably, don't complain ;)
  14. Sheriton

    Digital mic Drop out

    Reception problems are usually related to other RF sources too close to the receiver antennae. If you can't move any potential sources of interference* away from the location of the receivers, then yes, the paddles, located up in the air away from anything else should help. It's always good practice to locate the antennae as close to the stage area as possible rather than using them to avoid running longer cables but I know practicalities don't always allow this. *Mobiles, bluetooth devices, computers, WiFi access points, IEM transmitters, wireless comms packs, wireless video transmitters, microwave ovens etc.
  15. Sheriton

    Headset windshield replacements

    Can you post back your experience if you get some?
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