TY - BOOK AU - Frenzel,Louis E. TI - Principles of electronic communication systems SN - 9781260597899 (pbk.) U1 - 621.381 22 PY - 2023///] CY - New York PB - McGraw Hill KW - Electronic systems KW - BUEsh KW - Digital communications KW - ENGGEN KW - February2023 KW - Reading book N1 - Includes index ; Includes glossary ; Includes Appendices ER -