Nady MHT-16 Manual - Page 10

SYSTEM OPERATION MGT-16 Receiver Antennas The MGT-16 receiver is supplied with Dual Antennas (9) attached. They should be extended fully to obtain maximum range. The optimal positions of the antennas are 45 degrees from the receiver and 90 degrees from each other. For maximum range, it is always best to maintain a line-of-sight (no obstructions) between the receiver antennas and the transmitter whenever possible. Powering the Receiver The MGT-16 receiver can operate with either two AA size batteries (DC operation) or with the supplied AC adaptor (AC operation). For DC operation, open the receiver's Battery Compartment Door (6) and place two fresh AA Batteries (15) in the Battery Compartment (5), observing the correct polarity. Two fresh alkaline or NiMH AA batteries will generally provide 6-8 hours performance, but in order to ensure optimal performance it is recommended that the batteries be replaced after six hours of use, or as indicated by the Low Battery Indicator (11). As the batteries begin to weaken below usable voltage, the low battery indicator will light up continuously, warning that the batteries are now too low and should be replaced as soon as possible. To preserve battery life, keep the receiver Off when it is not in use. For AC operation, power the receiver with the supplied AC Power Adaptor (16). Plug the adapter's barrel plug into the DC Input Jack (8) on the top side of the receiver, then plug the adapter into an AC outlet. Adjusting the Squelch The RF Squelch (13) control should be adjusted counterclockwise to the minimum RF squelch setting at which the RF Signal LED (10) remains on while your transmitter is in normal use, up to the maximum operating range anticipated in use for your application. However, in areas of high RF activity, the squelch control may need to be adjusted clockwise. If the transmitter is off and the receiver RF Signal LED indicator is flickering or stays on continuously, the squelch should be adjusted to a higher level (clockwise for less mute sensitivity level) to stop the flickering. Be careful not to select too high a clockwise setting as this may reduce the operating range to below what is needed. A range walk test will help in selecting the proper level. If the range is not critical, note that a clockwise (maximum squelch) setting will also yield a quieter mute function, which may be desirable in certain applications. The squelch level is factory preset at maximum sensitivity and operating range (i.e. counterclockwise for minimum squelch/maximum usable range). Note: Set controls carefully. If trim-pots are turned past minimum or maximum adjustment points they may need to be backed up to achieve desired setting AC operation of the MGT-16 receiver is the same as DC operation except that the Low Battery Indicator is inactive when the AC adapter is connected. Selecting the MGT-16 Receiver Channel and IR Sync Note: When the AC adapter is used, the installed batteries are automatically disconnected internally and are not operational. The AC adapter only powers the unit and will not charge NiMH rechargeable batteries if installed. For battery operation the AC adapter must be disconnected. Note: For quietest optimal performance, use the AC/DC adapter as battery operation raises the noise floor around 4 dB. Generally this is only a concern when playing high-gain lead guitar. For such applications, experiment to see if slightly quieter performance with the AC/ DC supply is preferred. Turn on the MGT-16 receiver by sliding the Power Switch (2) to the second position (receiver On but audio output muted/ attenuated), or to the third position for normal operation (receiver On and audio un‑muted). The Power LED (12) will light up indicating receiver is operational. The Frequency Select DIP Switches (4) are used for selecting one of 16 preset frequencies. Simply position the DIP switches to a desired open channel on the receiver. There should be no flickering of the RF Signal LED (10) with the transmitter off. See the MGT-16 DIPSwitch Frequency Selection Chart on page 16 for the correct switch position for each of the 16 available channels. Once you have selected the receiver frequency it can easily be downloaded to the transmitter to establish the necessary RF connection. For further info on selecting open channels, see RF Interference and Finding Open Channels on page 15. 10