...

... the quote that is purely out of context ...

Pure nonsense. From the article ...

"Working Fox-1A"

"With a minimum power output of 400mW, Fox-1A should be easy to work with an ordinary VHF/UHF handheld transceiver and a dual-band handheld Yagi antenna. Most VHF/UHF handhelds can only communicate in "half duplex." This means they cannot receive simultaneously while transmitting. A half- duplex rig will be adequate for the Fox satellites, but a "full duplex" transceiver is even better. A full duplex transceiver receives and transmits at the same time. This allows you to monitor the quality of your signal through the satellite so that you can make antenna and frequency adjustments as needed."

My quotation of ...

" ... a half-duplex rig will be adequate for the Fox satellites, but a "full duplex" transceiver is even better ... "

... captures the "essence" properly.

Clint Bradford