The AMM-SD1 Off Air RF Pickup Unit
Using the AMM-SD1 Modulation Monitor with Part 15 BroadcastingPart 15 broadcasting is a legal form of low power broadcasting on the standard AM broadcast band.
Using the Radio Engineering Associates Off-Air RF pickup unit, the AMM-SD1 will work well with your part 15 transmitter, without any connection to the antenna or transmitter.
The off-air interface covers the frequency range from 400kHz to 1750kHz and requires 100mV (minimum) of carrier to operate. This is easy to obtain by simply locating a wire or other antenna near to, or in the vicinity of the transmitter or transmitting antenna, and connecting this wire either directly or through a piece of feedline to the AMM-SD1 off-air RF pickup.
With Part 15 transmitters, ranges of 1 to 2 miles or more are possible. See the Hamilton RangeMaster AM 1000 Page for more information about part 15 broadcasting, and related equipment.
Using the AMM-SD1 Modulation Monitor with a standard communications receiver I.F. outputThe Off-Air RF pickup may also be used to connect the Modulation Monitor directly to a standard communications receiver's I.F. output. The interface will work with I.F. frequencies from 400kHz to 1.75mHz. 100mV (minimum) of carrier signal is required.
Features and Specifications
How to PurchaseThe AMM-SD1 Off-Air RF Pickup unit may be ordered with the AMM-SD1 Modulation Monitor as an RF pickup option for an additional $199.99. Comes with power supply and interconnecting cable for connecting to the AMM-SD1 Modulation Monitor.
The Off-Air RF Pickup may also be ordered as an individual item for $229.95
Questions?Contact Radio Engineering Associates directly for more information.