For a microwave hop link to be established and operate correctly, the hardware and frequency configurations at both ends of the link must be compatible. Using the same model of Outdoor Unit (ODU) ensures that critical parameters such as intermediate frequency (IF), modulation schemes, power capabilities, and management protocols are identical, guaranteeing hardware interoperability. Furthermore, both ODUs must be designed for the same frequency band and configured with a corresponding pair of transmit (Tx) and receive (Rx) frequencies. A mismatch in either the ODU model or the operational frequency band would prevent the establishment of a stable communication link.

This is a "TRUE OR FALSE" question; therefore, this section is not applicable.

1. Huawei OptiX RTN 900 Radio Transmission System Hardware Description. In the chapters describing Outdoor Units (ODUs)

such as "ODU XMC-3" or "High Power ODUs

" the documentation specifies that each ODU model is designed to operate within a specific frequency band (e.g.

6 GHz

11 GHz

23 GHz). This inherently requires that for a link to work

both ends must use ODUs designed for the same band. The principle of interoperability dictates that using the same model is the standard and required practice for guaranteed performance.

2. Huawei OptiX RTN 900 Radio Transmission System Commissioning and Configuration Guide. In the section "Configuring Radio Link Attributes

" the procedure for establishing a microwave link explicitly requires the network engineer to configure the "Transmit Frequency" and "Receive Frequency" at each end. The configuration must be a matched pair within the same frequency band supported by the installed ODUs. For example

the transmit frequency at Site A must equal the receive frequency at Site B

and vice-versa. This procedure will fail if the ODUs are of different

incompatible models or are not configured for the same frequency band.

3. Poon

F. S.

& F.-C. E. Tsai. (2008). Microwave Engineering and Systems Applications. Chapter 7: Microwave Radio and Other Communication Systems. This chapter outlines the fundamental principles of point-to-point microwave links. It explains that a functional link requires a transmitter and receiver pair (transceiver) at each end that are matched in terms of frequency

modulation

and other radio characteristics. This foundational concept supports the requirement that the equipment (ODUs) at both ends of a single hop must be of the same type and operate on a coordinated frequency plan.