Bearcat XWEA

List price 339.95 CE price S209.95 SPECIAL B-Band, SO Channel e No-crystal scasms Automatic Weather Stmrch Scmn AC DC Frequency range 30-50, 136-174, 406-512 MHz. The new Bearcat 210XW is an advanced third generation scanner with great performance at a low CE price. List price 179.95 CE price S102.93 SPECIAL 10 Bund, 16 Chan net AC DC tnstmnt Wwather Frequency range 29-54, 136-174. 420-512 MHz. The Bearcat 145XL makes a great first scanner. Its low cost and high performance letsyou hearail the...

Bits

Nemal Electronics International of Florida has introduced a new line of connectors designed to fit the Belden 9913 and 8214 type cables. The connectors are available from stock both type N (part no. NE720) and BNC (part no. NE860) series and will accommodate the 9-1 2- to 11-gauge center conductors in these and similar cables. Both series of connectors meet the electrical and mechanical requirements of MIL-C-39012 and incorporate silver-plated contacts and Teflon insulation. Each is fully...

Surface Mount Technology

Surface mount technology (SMT) is a relatively new process used in the construction of printed circuit boards. SMT uses a technique of adhering components to the PC board by special pastes and other bonding techniques, rather than through-hole soldering. It is important to the electronics industry and Amateur Radio operators because as its popularity increases, every electronic product will be affected. Japan already uses SMT on 70 to 75 percent of all board applications.1 Amateur Radio...

S xeaA lommunicaiion

5817 S.W. 21st ST., HOLLYWOOD, FL 33023 305 989-2371 State of the Art Kits by Hal-Tronix, Inc. TOUCH-TONE DECODER. SINGLE LINE IN 12 LINES OUT. COMES COMPLETE WITH P C BOARD AND ALL PARTS NO SOCKETS. CASE OR POWER SUPPLY HAL-567-16 69 95 TOUCH-TONE DECODER, SINGLE LINE IN 16 LINES OUT COMES COMPLETE WITH P C BOARD AND ALL PARTS PLUS SOCKETS NO CASE OR POWER SUPPLY HAL-ECD-12 29.95 TOUCH-TONE ENCODER. 3 x 4 12 CHARACTER USE FOR DIALING COMPLETE WITH ALL ELECTRONIC PARTS INCLUDES SPEAKERS FOR...

Additional Sweep Frequency Impedance Measuring Techniques

By Ken Simons, W3UB 2035 Willowbrook Dr, Fig 1 At A, the input impedance sees the terminating impedance in a low-loss line as a pure resistance, B shows the equivalent circuit of that in A looking back into the line fed from a matched source, the circuit acts as a constant voltage in series with a resistor equal to ZQ. In C, a given impedance Zx is connected across a matched system and the actual circuit exhibits the same energy loss to the load as that calculated when Zx is across the load in...