Audio Resource Group ARG-TX90MST Manual - page 4
position. When there is digit “16” flash once on the display, it means that the device sampling
rate is set at 16KHz; When it is digit “8” flash once on the display, it means that it is set at 8KHz.
INPUT SOURCE
XLR or 1/4” bal./unbal. input
RF output level
Set the RF output via RF POWER LEVEL switch at the rear panel.
12dBm
Technical Specifications
Frequency Range: 903MHz – 927MHz
RF Output: 15dBm
Modulation: QPSK
Audio sampling: 8bit @8KHz; 8bit @ 16KHz
Power consumption: 60mAH
Dynamic range: >80Db
SNR: >78dB
THD at 1KHz:
Channels: 25
Channel spacing: 1MHz
Transmitter Troubles
Make sure the power outlet is working and the 9V power adapter is connected correctly into a
grounded outlet
Independent data streams are sent to each transmit antenna, so it belong to completely
uncorrelated signals.
No Audio Heard in Headphone OUTPUT
a. Check to see if there is a signal coming from the audio source. Correct it if necessary.
b. Check to see if there is an incorrect or defective connection from the audio source.
Noise in Audio
a. Check to see if there is noise in source audio. Disconnect the audio cable to find it
out. If the noise disappears, the noise problem is from the source. Correct or repair
the audio source.
b. Check to see if the source level is too low. Adjust the source audio level or reset
audio select switch to match the existing source level.
c. Make sure there are no major internal obstructions, such as metal support posts,
between antenna and receiver.