Payment Terminal & Retail Hardware worked example

Wireless Test Capacity at 99% rf chamber uptime: a worked example in payment terminal & retail hardware

What does the result look like when rf chamber uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when wireless test capacity in payment terminal and retail hardware is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Terminals RF-tested per chamber cycle: 4 units / cycle (unchanged)
  • Available RF test chamber cycles per shift: 480 cycles (unchanged)
  • RF chamber uptime: 99 % (raised for this scenario; the documented default is 90)
  • Radio test first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross wireless test capacity = wireless test capacity output per cycle × available wireless test capacity cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good wireless test capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross wireless test capacity.
  • At this operating point the engine returns 19.2 units for wireless test capacity downtime loss.
  • At this operating point the engine returns 57.02 units for wireless test capacity yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where rf chamber uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • A figure at this level is achievable when rf chamber uptime is genuinely sustained, not just peaked for a shift. It assumes uptime and first-pass yield are independent and stable; in reality a marginal antenna design can spike RF failures batch-to-batch, so a single blended yield can hide real variation.

Results at a glance

  • Good wireless test capacity: 1,844 units (headline result)
  • Gross wireless test capacity: 1,920 units
  • Wireless test capacity downtime loss: 19.2 units
  • Wireless test capacity yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live Wireless Test Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.