What the product controls
A full tune can take about five seconds and a memory tune about a tenth of a second. Failure to tune can come from low voltage, a coax short, an inline device, both antenna outputs being used, a load outside range, or poor antenna/return geometry.
The boundary that prevents mistakes
Repeatedly commanding tune at high power or randomly swapping connections risks damage and destroys the evidence needed to find the fault. A successful match does not prove low loss or good radiation.
Use this field sequence
Power down, inspect and weatherproof connections, measure the supply under load, test the direct Coupler-to-Tuner coax, restore one documented output, tune at low power, then record whether the result was full tune, memory tune, or failure.
CHA URT1 User Guide 260524 and Applications Guide 260612. The current guide for the exact product and completed configuration controls. A shared connector or 3/8-24 thread does not prove electrical, power, or structural compatibility.
