MidiStream UHF Wireless MIDI System Operating Manual
Introduction Congratulations on your purchase of the MidiStream UHF wireless MIDI system. The MidiStream system is very easy to use, but please take a few moments to read through the manual to avoid any operational difficulties. MidiStream has been designed specifically to address the problems unique to MIDI data transfer. It combines a high data rate with extremely low latency and low dropout rate.
MIDI Out This output gives a copy of the MIDI data which was sent to the transmitter. Connect a MIDI lead from here to the MIDI In of your sound module, computer or other MIDI equipment Antennas A & B The MidiStream receiver is what is known as a diversity system.
Exposure to radio frequency energy and potential harmful effects The transmitter operates at an extremely low power of 5 milliwatts or less, (somewhat less than a typical mobile phone) however you should be aware that the effects of radio frequency energy on the human body are not fully known at this time and exposure should be minimised wherever possible. As mentioned above, if you can keep the transmitter away from your body, so much the better.
Note hangs & controller updates MidiStream has been especially designed to make note hangs extremely unlikely. If you go out of range of the receiver or the signal gets interrupted, all current notes will be turned off. When the transmitter is back in range, the current value for major controllers, such as MIDI volume, modulation wheel, pitch-bend, breath control & program change will be re-synchronised with the most recent values which were sent to the transmitter.
Details of the MidiStream SysEx messages SysEx messages exclusive to the MidiStream system are made up as follows: [1] [2] [3] [4] [5] [6] [7] [8] F0 00 20 13 0B aa dd F7 - Begin SysEx command - Company ident first byte - Company ident second byte - Company ident third byte - Product code – MidiStream System - Address byte – where address 00 is for setting timeout (no other addresses valid at this time) - Data byte – where data values of 00 – 7Fh (0 – 127 decimal) are valid values - End of SysEx 6
Transmitter Specifications Power 9 volt battery. PP3 type (also known as 6F22 or MN1604 or S-006P) Power consumption Typically 55mA in normal use or 17mA when power saving Battery life 4 – 5 hours with a full battery. Transmit frequency 869.
