Advanced Operation

Testing a Channel for Outside Interference

Once a microphone and module have been successfully paired, turn the microphone OFF (leave the module ON). With the microphone off, if the RF indicator still has bars showing, there exists interference. Note that RF interference can ebb and

ﬂow. Sometimes it may appear as 4 steady bars on the RF indicator, other times, it may weakly occupy a single bar or two. Generally, we recommend looking for another channel if ANY bars register.

Using Automatic Frequency Selection

In some areas the auto-scan feature may not select an interference-free channel. This is not because the system is malfunctioning; it is because there are no interference-free channels available in that subgroup. If you are setting up in this kind of environment, and do not want to use manual frequency selection, we recommend you do the following:

1.Start an auto-scan on the left module (1) using GR11. If there is no open channel in that group, repeat an auto-scan on GR12. Continue this process until an open channel is selected. (see above for how to test a channel for interference)

2.Begin the auto-scan process on the 2nd module, but this time start with next available subgroup. For example, if on the 1st module you found an open channel on GR16, you would start scanning on GR17 on the 2nd module.

3.Repeat this process with the 3rd and 4th modules, starting with GR21.

Obtaining Local TV Tower Information

The most common source of RF interference to the UHF-5900 is TV broadcast towers. If you are experiencing dropouts, static, or other annoying noises, and suspect RF interference, follow the instructions below to obtain information on your proximity to broadcasting TV towers (United States).

1.Visit http://www.antennaweb.org (see note below)

2.Click ‘Choose an antenna’

3.Enter your zip code and hit ‘Submit’

4.On the next screen, hit the ‘Continue’ button at the bottom of the map screen

5.On the next screen, under the ‘RF Channel’ tab, take note of any channels between 38 – 51.

After obtaining a list of locally active broadcast channels, cross reference it with the TV channel frequency list (Page 20). These frequency ranges are to be avoided as much as possible when selecting operating frequencies.

For example, let’s say you did a search in your area (this example shows zip code 05456) and received the following information:

The only relevant channel is 43, therefore you would jot it down to cross-reference with TV frequency chart (page 20)

After cross-referencing, you ﬁ nd that channel 43 uses the frequency range of 644 to 650 MHz. You would NOT choose a frequency that falls in that range.

NOTE: antennaweb.org is a third party website and is not maintained by or afﬁ liated with VocoPro.

UHF-5900 specifications

The VocoPro UHF-5900 is an advanced wireless microphone system designed to provide exceptional sound quality and reliable performance for a variety of applications. Suitable for both professional performers and casual entertainers, this system combines cutting-edge technologies with user-friendly features, making it a top choice in the world of wireless audio.

One of the standout features of the UHF-5900 is its UHF (Ultra High Frequency) operation, which offers a broader frequency range and reduces the risk of interference from other electronic devices. This ensures crystal-clear audio transmission, even in crowded environments. The system operates on multiple frequency channels, allowing users to easily switch channels if one becomes congested, ensuring uninterrupted performance during live events or recordings.

The UHF-5900 comes equipped with two handheld microphones, ideal for duets, group performances, or karaoke events. Each microphone features a high-quality dynamic capsule, which provides rugged reliability and delivers clear, professional-grade sound. The microphones are designed to be easy to use, with an ergonomic grip that allows performers to maintain comfort while on stage.

Another key technological advancement in the UHF-5900 is its automatic frequency scanning feature. This enables the system to search for the clearest channel automatically, saving time during setup and minimizing sound disruptions. Users can also manually select frequencies if needed, offering flexibility for various environments.

The receiver of the UHF-5900 is not only compact and portable but also equipped with dual antenna diversity. This technology helps minimize dropouts and ensures stable audio transmission, even when the performers move around the stage or venue. The device features adjustable volume controls for each channel, allowing for precise volume adjustments to suit different settings and ensuring that audio levels remain balanced.

Additionally, the UHF-5900 includes audio outputs that are compatible with a wide range of audio equipment. With both XLR and 1/4-inch output options, users can easily connect the receiver to mixing consoles, amplifiers, or powered speakers. The sleek, rack-mountable design of the receiver allows for easy integration into existing audio setups and works well in both professional and home environments.

Overall, the VocoPro UHF-5900 is a reliable and versatile choice for anyone seeking a robust wireless microphone system. Its impressive features, advanced technologies, and focus on user convenience make it an excellent investment for enhancing any audio performance, whether on stage or at home.