> Because all transmissions are secured by checksums and automatic query, no transmission errors are possible.
Just a reminder to people implementing systems with error detection: undetected errors are always possible. Checksums may be just fine for this application but if you need to achieve some target error rate you may have to consider error detecting or correcting codes that fit with the interference you find in your transmission channel.
[edit] Error detecting checks work not by making errors impossible but by making them unlikely. It is part of the work to quantify your design to show that probability is low enough for your goal.
Just a reminder to people implementing systems with error detection: undetected errors are always possible. Checksums may be just fine for this application but if you need to achieve some target error rate you may have to consider error detecting or correcting codes that fit with the interference you find in your transmission channel.
[edit] Error detecting checks work not by making errors impossible but by making them unlikely. It is part of the work to quantify your design to show that probability is low enough for your goal.