Are radio modules a good or bad thing for RF engineers?

Is designing a radio today as easy as plopping down an RF module onto a board and expecting it to work, assume it will pass FCC testing? Or do we still need to consider RF testing, communication theory, conditions that promote unintentional radiation?

Does the certification needs to be done with the radio in it’s product case ? Or can it be run only on the radio board without any casing? I would say that the radio needs to be in it’s case, since that would influence the radio transmitting power?

When I try to compile the CodecEVM_OneWay_CC1110_12kHz16bits project I have an error:

I’ve heard of Dash-7 and Ipv6/6LoWPAN, but neither seems to have much penetration … yet, and I’m not clear how the capabilities compare to the proprietary or “large” offerings?

My company have designed and are now manufacturing circuits using the CC2430 in a similar circuit to the reference design. Quantities are still relatively small (runs of 500 – 1000) but we are having great difficulty sourcing the 32MHz NX3225SA crystal at the 10/15/30/16 spec.

I am using CC2500 as a transceiver in my product and using chip antenna on it and have set data rate to 2.4kbps and transmission power to 0dbm.

Do i need any certification for using this product in UK?

We have a need to limit travel on a rope being retrieved onto a drum through a pulley. We need to mount a passive non powered sensor or tag of some type onto the rope and be able to detect it within a range of 1 mtr.

We have enquired about RFID but these are typically a computer controlled solution, all we want is a “yes the tag is in range” signal to a PLC to stop the motor on the winch.

Is the design in DN0007 appropriate for use with the CC2530? It says that the antenna can be “used with all 2.4 GHz transceivers” but does not include the CC2530 in the list of keywords.

My Wifi signal seems to be intermittent in certain areas of my house, so I am seeking an alternative.

I like Zigbee due to its mesh network topology. I assume it would work well for high noise areas, which is the most critical for me. Anyone work with Zigbee for factories or other high interference locations?

For the record, I am connecting all devices ultimately to a 20mbps Internet connection from RCN.

Has running a CNC machine wirelessly every been successfully achieved with a similar error rate that wired machines experience? In other words, wireless with no error in an industrial environment. And I am referring to the connection between the actual CNC equipment and the PCs that drive them.

I have seen this attempted with dismal results. And following the failure, a football field’s length of Ethernet cable was strung to the ceiling. But with Zigbee, Wireless-N, and others, there has to be a decent solution by now?

Society’s expectation of technology has changed. Do you remember the days when a dial-up connection was the only way to access the internet? Times have changed.

Find a way to utilize Wi-Fi in your next project, the demand is there, and the time is now.