Frequency is measured in hertz (Hz). A person who has hearing within the normal range can hear sounds that have frequencies between 20 and 20,000 Hz. The most important sounds we hear every day are in the 250 to 6,000 Hz range.
An issue date was added, and cheques may not be valid a certain amount of time after issue. In the US and Canada a cheque is typically valid for six months after the date of issue, after which it is a stale-dated cheque, but this depends on where the cheque is drawn; in Australia this is typically fifteen months.
A consumer who comes across one of these uncashed checks faces a conundrum. While it may be possible to cash a check that's more than 6 months to a year old, there are several things consumers need to consider before heading to the bank with Nana's old checks. Previous. 1 of 6.