glenn

You never know what might get you.

There are different methods of filtering for a receiver that is designed to receive multiple transmitters. Zaxcom uses a very different approach than that of other manufacturers. The approach centers on the use of a very practical front end filter that will eliminate the problems of a wide open front end that can be unexpectedly overloaded on location. The biggest problem by far for a UHF wireless system on location is the use of UHF 450MHz to 512 MHz walkies on set. Interference from these devices on set can be 1000s of times more powerful than any interfering television transmitter and more powerful than other wireless microphones on set. Just key up a 4 watt walkie near your wide band wireless receiver to see and hear the effect on a wide band system. Weaker wireless microphones can be completely wiped out by this type of common interference. In a Zaxcom wide band UHF receiver the front end tunes from 512MHZ to 700MHz. The front end is limited to a instantaneous range of +/- 17.5 MHz from the center frequency. In this way walkies are eliminated from presenting meaningful interference to the receivers in the system. Because the front end filter can tune over 200 MHz, it makes for a more flexible system where all receiver channels connected to the front end can tune as a group over the entire wide band range without limitation. The front end of a receiver that includes the multi-coupler must not be wide band in order to get the best performance of the system. If it gets overloaded it can create interference and RF distortion for all receivers connected to it. It is just like using a bad microphone with a great preamp. No matter how good the preamp is it will never perform better than the bad mic that is the front end of the microphone preamp. It is the same for an RF system. With the Zaxcom tunable wide band design, the possibility of front end overload by walkies and anything outside the 35MHz tuning window has been eliminated in the receiver. Because the transmitter intermodulation generation is negligible, no frequency coordination software is necessary with this system. In conclusion a receiver is only as good as its weakest point. Eliminate overload by high power walkies , frequency coordination with separate software programs and tune the entire 512 to 700 MHz range currently available in all US cities. These are the benefits that will make the Zaxcom receiver design work without worry of unexpected interference problems for a better on location wireless experience. Glenn Sanders President Zaxcom Inc.

We were very pro active on the fix. The notification is what was lacking. I will be looking into this tomorrow. I am not happy about it either. Glenn

We will put out a software update. The oled on the RX200 has double the resolution of the older LCD. While quite functional it has to look different from the older display.

This will be fine. Glenn

I to do not like the TW700 either. We are looking for a better piece of hardware to use. At $70 the TW700 is OK but not the right long term product. I think that Touch is best suited for the moment in a sit down interview type environment. Glenn

Jac never came to our booth at AES while I was there. We could talk about all sorts of things. I to enjoy working with sound people as well. As for the current matter Jac is very aware that any communication regarding this matter needs to be via Email. Glenn

I might be able to save some time here and clarify things at the same time. There is no list. If anyone should know it is me. Thanks to Chris for fact checking. Glenn

It is not right in my opinion that Jac has chosen to make a private request on my part for technical information into this big deal. His post on this matter seems to be more about complaining about the patent system and the fact that a Zaxcom invention is preventing him from using that technology and selling it to the USA market as his own. I work very hard to be fair and honest in all facets of my life. I have Emails to back up all communications in this matter. This should not be a topic on social media because it is between Sonosax, the US distribution and Zaxcom. Since it is now a topic, I will be vocal on setting the record straight where needed. As a comment on some of the posts from yesterday, no one was or has been threatened with legal action in this matter. References to an implied threat are over reaching. However if someone is going to steal or commit a crime then there is always the threat of legal action. No matter the context. The availability of a product in any market should not be determined by the threat of legal action and penalties but by the fact that selling technology that has patent protection is simply not the right thing to do. Glenn

We are looking into offering this toughbook. I hope to have pricing soon.

I need to correct this fantasy that Jax seems to have with this situation. I can not allow fiction to be confused with fact. "When we announced the arrival of the SONOSAX SX-R4+, this company immediately asked us to provide them with a machine as well as detailed circuit schemas and threatened us with lawsuits should we market in the USA a product that could, potentially, be liable under their patent. " Zaxcom never I repeat never threatened Sonosax with a lawsuit. We also never asked for detailed circuit schematics. What we did do is ask for conformation as to how he was achieving the published specification for his recorder. If it was found that the recorder was using our technology we offered the possibility of a license so the product could be sold in the USA. "We have proposed to meet with the President of this company ; he has refused. It is thus clear for me that we will never deal on any level with a person who is incapable of a face to face dialogue... " I have sent about 7 emails to Jac regarding this issue. I have told him of our desire to get the technical information necessary to determine if there is in fact any problem at all with him selling his product in the United States. He has refused to provide any information. All correspondence in this matter must be written in nature so there is a record of it. "Although well-known for a long period, the double ADC method was patented in the United States by an American company who has simply appropriated this « invention. » The validity of the patent is thus questionable. " The method of using 2 ADC on each input is not what is patented. It is how the data is combined into a single stream. The word appropriated implies theft and that is wrong. The Patent office like with any patent looks for prior art. When none is found a patent if appropriate is issued for the invention submitted. In our first communication with Jac we gave him our patent number and expressed the desire to work with him. The only thing that has happened since was his decision to not sell machines in the USA. This was based solely on only our questions to him and his reading of our patent. We are ready to "meet" with Jac via Email to resolve this issue. Patents are important to protect the rights of the inventors. No one questions Neuman on their patented method of dynamic range expansion or Lectrosonics on their patented method of a Digital Hybrid Wireless Compander system. If Jac is going to vilify Zaxcom (An american company) he needs to also include these companies as well as all others who invent and pioneer at great cost. We remain ready and willing to receive a communication from Jac that explains this device so that a determination can be made. There may not be any be any issue at all with him selling his product in the USA. Unfortunatly we do not know that and he has not been at all been willing to communicate the necessary information with us via Email. Glenn Sanders President Zaxcom Inc.

If you use your block 21 at the top of its range and the TRX900CL at the bottom of its range you should be OK. This is not ideal and it would be best to keep one block of separation between each system. The TRX900CL has a 1 block wide filter designed to prevent interference to other receivers in the sound bag. The farther away the systems are from each other the better it works. Glenn

We will look into this. It sounds like an overload issue not an intermodulation issue.

If the the ground of the 3.5mm connector is not making good contact crosstalk will be the result. Now that the connector is locking this can not happen if the locking male plug is used. Glenn

As others have described, Zaxcom recording wireless with Neverclip has to be the preferred method. The transmitter recording will save the day so you will know you have no drop outs. Dropouts should be expected due to the range requirements and the large metal objects that can get in the way. Zaxcom digital wireless without any compander like process that all FM wireless have will capture the sounds without the algorithm that is optimized to a vocal performance as other wireless systems are designed to do. RF remote control will allow you to tweak each mic after it is mounted in places you can not access so your tracks will not be full of limiter distortion. Not knowing what you will have until you begin means that live remote control will give you the best results. The job sounds like a lot of fun. Glenn

Zaxcom wireless has to see the transmitted signal in its linear range. The receiver is very good at doing this. But overloading it with a powered antenna can lead to dropouts at close range and is not advised. Yes RF systems are a lot like microphones amplifying signal and noise. This is not so much about our system but all RF systems. Glenn

I am reading of new products coming on the market that are a concern to me. Amplified antennas should only be used for two reasons. It is to overcome the RF loss of long cable runs to a receiver (50 feet or more) or the RF loss of passive splitters used to drive multiple receivers. Any receiver used for the professional wireless industry has the optimum amount of RF gain as set by the manufacture. When used incorrectly adding gain to the receiver with a powered antenna will only serve to make the receiver overload more easily and will not enhance range any more than a passive directional antenna. Receiving an RF signal is all about signal to noise. Antennas with amplification can only amplify signal and noise at the same time not providing any real advantage. There is a feel good factor in that the signal on a meter may be higher with an amplified antenna but so is the noise so the benefit is hard to see if it is there at all. The other thing to watch out for is filtered antennas. You must know what the bandpass looks like to know if the filter is doing any good. Zaxcom receiver filters for example have a band pass of +/- 17.5MHz and attenuate about 30 dB at +/- 50MHz from the center frequency. If an antenna filter in front of the receiver has a +/- 50MHz bandpass and attenuates 20dB at +/- 100MHz away from the center frequency that is good to know as that will not provide good protection from interference. The point is, antenna RF filters are never the same and all manufactures should publish a frequency response graph so the the customer can understand exactly what the product does or does not do. With this information a proper system will be easy to put together. Glenn Sanders President Zaxcom Inc.

Zaxcom Neverclip is a completely different method from the Neumann method and not relevant to the Neverclip patent. Glenn

I understand that this is being worked on by a third party in the UK. Glenn

Faders 9-14 are the Nomads rotary faders. Glenn

The Oasis can function without the tablet / GUI. Glenn

I will look onto thisthis. phantom power might drain the batts faster than I expected.

Six hours with a phantom analog mic is correct. Three hours is not right for analog.

If it is necessary for more than 8 channels to be controlled live, the 6 rotary faders on the Nomad can control any of Nomads 18 inputs as well. Counting the rotaries the correct fader count is actually 14. With 8 input trims or Zaxnet control live on the Oasis. Although small the OASIS can easily take on very demanding feature and television production tasks with the benefits of Zaxnet integration. We will be adding the script viewer package to the Oasis in the near future.

This is the same as the STOP button on the Zaxcom MIX 12 with no complaints over the last 10 years. If it worries you we could make it so it has to be pressed twice or held for a short period of time. The Oasis indicates the current bank and the GUI always shows the source routed to each fader eliminating confusion. Channels can be routed to multiple banks at the same time so that you can have the same channels on faders 1-4 in all banks while faders 5-8 can be different. Any combination is possible.