IQBD (IQ Balance Detector)

The IQBD (IQ Balance Detector) is a device to aid in determining the correct balance of the IQ audio signal sent to a Multus SDR, LLC. transceiver. Most transceivers (including the Proficio) that implement Tayloe mixers to generate the transmitted RF signal may need small adjustments to the balance of the two channel I/Q audio signal provided to the transceiver. If the I/Q signals are too far out of balance, an image signal is produced in the transmitted RF signal. MSCC configures a default set of I/Q values for each transceiver version.  The default values set the I/Q balance well within the limits for spurious radiation. However due to minor variations in assembly of the transceiver, the I/Q balance may not be optimal. With I/Q calibration, the image signal can be reduced to well below 60db below carrier.

Determining the strength of the image signal is often performed by listening to the transmitted signal on a second receiver or transceiver. The IQBD eliminates the need for a second receiver or transceiver.

The IQBD also serves as a general purpose 50Ω dummy load.  Maximum input power is 10 watts.

Features:

1. Highly sensitive to IQ out of balance conditions.
2. LED IQ balance visual indicator.
3. Audio IQ balance output indicator.
4. 10W maximum input power.
5. Powered 13.8V supply or 4 CR2032 Button Cell Batteries (supplied).

The IQBD is sold as a kit and contains SMT devices.
Technical support and documentation is located at: Support.
Please do not use this website to obtain technical support. Requests for technical support via this website will not receive a response.
NOTE: These kits are produced at time of order. There is a two day lead time before shipping the kit.

• Availability: 1 In Stock