I tolerate your old-school views of what is and what isn't a transmission line speaker. Now it's your turn to tolerate my views of what is and isn't a smoker
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A gas grill, burning propane, cannot smoke, regardless of the temperature it can maintain. When propane burns, it produces a large amount of water vapor. The lids of all gas grills are designed to let that vapor escape, otherwise the food turns into a soggy mess. The food gets steamed more than it gets grilled. Any smoke produced will also escape.
Smoking meat requires smoke, and careful attention to air flow and combustion temperature. Smoking meat requires the partial combustion of wood or charcoal under controlled conditions. Neither fuel produces the high level of water vapor as with propane.
Propane works fine for cooking, as in grilling, but it's an abomination for true smoking, as in barbeque.