How do you set nady ald800 frequency?

Answer 1

"Channel selection is controlled by DIP switches inside the transmitter. The system is preset at the factory. Changing the channel can be done quickly by any qualified service technician. See your dealer or the Nady Customer Service Department for detals." Remember that the receivers have to be retuned as well. This is from the product manual. There are 8 different frequencies that you can select from when you purchase the system.

Alternatively, you can manually retune the ALD-800 receivers by gently and slowly rotating the internal tuning potentiometer while close (ten to fifty feet away) from an active Nady, Drake, Williams, or similar transmitter broadcasting on one of the standard Assistive Listening Device frequencies. A non-metallic (plastic or fiberglass) tuning screwdriver (wand) should be used for this purpose. Tune for the center of best reception. This will probably void your warranty, but it is not rocket science. If you retune a receiver, be sure to remove the sticker indicating the old frequency, and replace it with a new sticker, preferably inside the battery cover.

Preset channels between 72-76 MHz.

Channel AA: 72.1, BB: 72.3, CC: 72.5, DD: 72.7, EE: 72.9, FF: 75.5, GG: 75.7, HH: 75.9

As for the DIP switch settings on the Nady ALD-800 transmitter (and probably for it's twin the EO3 Personal Ear Monitor), here the settings for the switches 1 through 8 from a unit which had a factory label.

Channel AA (72.1 MHz): 1-ON, 2-OFF, 3-ON, 4-OFF, 5-ON, 6-ON, 7-ON, 8-ON

Channel BB (72.3 MHz): 1-ON, 2-OFF, 3-ON, 4-OFF, 5-OFF, 6-ON, 7-ON, 8-ON

Channel CC (72.5 MHz): 1-ON, 2-OFF, 3-ON, 4-OFF, 5-ON, 6-ON, 7-OFF, 8-ON

Channel DD (72.7 MHz): 1-ON, 2-OFF, 3-ON, 4-OFF, 5-OFF, 6-ON, 7-OFF, 8-ON

Channel EE (72.9 MHz): 1-ON, 2-OFF, 3-ON, 4-OFF, 5-ON, 6-ON, 7-ON, 8-OFF

Channel FF (75.5 MHz): 1-OFF, 2-OFF, 3-ON, 4-OFF, 5-OFF, 6-ON, 7-ON, 8-ON

Channel GG (75.7 MHz): 1-OFF, 2-OFF, 3-ON, 4-OFF, 5-ON, 6-ON, 7-OFF, 8-ON

Channel HH (75.9 MHz): 1-OFF, 2-OFF, 3-ON, 4-OFF, 5-OFF, 6-ON, 7-OFF, 8-ON