Radio paging device with improved test modes

A receiver capable of receiving at least one group of transmitted signals, each said transmitted signal being comprised of at least one symbol, comprising:

• detecting and decoding means, for detecting and decoding each said transmitted signal from said at least one group of transmitted signals to obtain a decoded signal;
• memory means, for storing a reference signal having a reference symbol identical to the transmitted symbol;
• comparing means, coupled to said detecting and decoding means and said memory means, for comparing the symbol for each said decoded signal with reference symbol of said reference signal and for generating a signal indicative of the degree of similarly between each said decoded signal and said reference signal;
• classifying means, coupled to said comparing means, for classifying into at least three classifications each of the decoded signals, for generating a signal indicative of the classifications of each said decoded signal.

A method for evaluating the performance of a receiver capable of receiving at least one group of signals, said method comprising the steps of

• (a) transmitting at least one group of signals of a plurality of groups to the receiver, that at least one group of signals including at least one predetermined bit pattern;
• (b) receiving at the receiver the group of signals;
• (c) decoding each group of signals to recover each bit pattern;
• (d) comparing each of the decoded bit pattern bit by bit to a reference bit pattern identical to the predetermined bit pattern for determining the number of bit differences;
• (e) classifying into a plurality of error conditions, the decoded signal according to the number of bit differences;
• and
• (f) generating a value for each of the error conditions to evaluate the performance of the receiver.