As most audio professionals are aware, there have been major changes in the industry over the past few years, concerning wireless usage. These hail back to 2008, when the FCC announced the users of pro audio wireless in the 700 MHz band (actually 698 to 806 MHz) would have to vacate that band after June 12, 2010. Later this year, the FCC is planning another big money spectrum sell-off, this time of undisclosed portions of the 600 MHz band — perhaps not all of it, but the remainder that we as wireless users will be able to use will most certainly be a small fraction of what we had.
It’s not a pretty picture for thousands of wireless system owners, and we hear these concerns from our customers every day. As the developers of the Invisible Waves™ brand of RF spectrum analyzers and innovative antenna systems, used by thousands of professional audio personnel throughout the world, I want to inform you of a new and “Revolutionary” solution to the RF congestion and “spectrum squeeze.” First, I must tell you that I do not lightly throw around the word “Revolutionary” when describing a new product or technology. But as you’ll read below, “Revolutionary” is a very appropriate description.
Kaltman Creations LLC secured the rights and ownership to advanced filtering technology that was previously used in military, nuclear plant and critical data communications. Over the past two years, we have been aggressively working on adapting this technology for use in the pro audio wireless UHF bands. Our new ”Revolutionary” technology is called the RF-ResQ™. It will change the way you think about wireless microphone frequency assignment and spectrum. The RF-ResQ is an antenna signal processor that can rescue and salvage unusable RF spectrum, substantially reduce interference, and features additional trailblazing technologies.
Housed in a single-rackspace unit, the RF-ResQ is the world’s first standalone wireless microphone filtering system employing multiple military-spec, very high-Q bandpass filters. ResQ will clean up the received RF spectrum, allow for much closer adjacent channel spacing (potentially doubling the available channel count and without interference or sacrificing power), remove the issue of intermodulation effects, and improve the reception of weaker transmissions.
RF-ResQ’s onboard 8-channel antenna distribution amplifier with RF router allows its filters to adapt to various receiver and distribution configurations. This provides one filter/frequency per receiver channel, which ultimately means that your receiver only sees its assigned transmitter frequency and nothing else — no out-of-band RFinterference to bog down or de-sensitize the receiver’s input. Alternatively, you can select “combined signal routing” to feed integrated receiver/distribution systems, as found in some newer digital mic systems. As ResQ assigns a single, frequency-cleaned-up, bandpass filtered feed for each transmitter’s frequency, its eight discrete amplifiers can maximize the individual RF signals up to 10 dB. This means that there’s no need for amplified antennas. Why amplify all of the RF — including the RF noise — when the ResQ amplifies only specific frequencies as needed?
DiverseQ™, the RF-ResQ’s new antenna diversity technology, processes the antenna A/B signals in its IF stage for fast, accurate and quiet antenna switching. This superior, ‘best signal detection’ function is performed right within the RF-ResQ.
Installed between the antennas and receivers, the RF-ResQ works with industry-standard antennas and analog and digital wireless mic systems in the 470 MHz to 928 MHz range; one model — worldwide. The ResQ can be a cost-effective alternative to traditional antenna distribution and active antennas, or used with existing systems. Frequency, gain and routing assignments are easily performed via a LAN or USB/laptop connection to the rack unit; once set, you are free to unplug and walk away.
I’m sure you will agree that this new product will have a profound impact on your frequency concerns for wireless microphone applications. For peace of mind in critical wireless applications or to squeeze into an ever increasingly overcrowded RF spectrum, the “Revolutionary” RF-ResQ is here!
Thanks for your business and support.
Mark L. Kaltman
President – Kaltman Creations LLC