You think you’ve got it going on because you can wire up some eBay modules and make some LEDs blink, or because you designed your own PCB, or maybe even because you’re an RF wizard.

That’s where [Derek]’s hardline build comes in. The divider acts as an impedance transformer and matches two 50-ohm antennas in parallel with the 50-ohm load expected by the transceiver.

However, this PRNet might leave the analog (BB and RF) vulnerable to noises caused by the regulator output ripple and by side load activities. Indeed, current changes on side loads (e.g. BB logic) ...