[Elecraft] New CP1 Directional Coupler and BL2 250W 1:1/4:1 switchable Balun

Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com
Tue Oct 11 17:33:25 EDT 2005


We've just added two new Mini-modules to our Mini-module family
--

BL2 Wideband 1:1 & 4:1 (Switchable) 250W Balun

Our highly-efficient BL2 balun can handle up to 250 watts and can handles 1:1 
and 4:1 ratios via an on board switch. It  is very small (just 1.5 x 3") and 
lightweight, making it an excellent choice for both home and field use. It uses 
a special winding technique to reduce losses and extend the useful range, 
resulting in an SWR of less than 1.2:1 from 500 kHz to 55 MHz (200-ohm load). It 
includes rugged screw terminals for the balanced output as well as ground, and 
can be used in a variety of matching applications.

Price: $34.95

Specifications:

Power Rating: 250 watts maximum.Bandwidth: Input VSWR less than 1.2 when 
connected to a 200 resistive load, 500 kHz to 55 MHz.
--


CP1 Directional Coupler

The CP1 is a dual directional coupler that provides high directivity, can be 
internally or externally terminated and can be constructed with a coupling loss 
of either 20 dB or 30 dB. It can be used to sample a transmitter's forward power 
and reflected power output. As an example the forward power port can be 
connected to an oscilloscope for display of the transmit envelope. It is an 
ideal companion to the 2T-Gen 2 Tone test generator. For more advanced 
applications is can be used with a spectrum analyzer and tracking generator to 
sweep the return loss (SWR) of an antenna or other device in real time over a 
frequency range.

Price: $39.00

Specifications:

Frequency Range: 1 MHz to 30 MHz
Coupling Loss: 20 dB or 30 dB (29.8) +/- 0.25 dB
Directivity: 30 dB
Power Rating: 30 dB coupler, 250 W; 20 dB coupler, 25 W
---

For pictures and downloadable manuals, see:
http://www.elecraft.com/mini_module_kits/mini_modules.htm

Both items are in stock for immediate shipment.

73, Eric   WA6HHQ





More information about the Elecraft mailing list