Instruction Sheets for Part Number ECT-W1
Elecraft W1 140W Computing Wattmeter/SWR Bridge Kit
Computing Wattmeter & SWR Bridge, 1.8-30 MHz, 9V Battery or 12-14 VDC Power Supply Required (Not Incl.), Full Kit
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Estimated Ship Date: May 4, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
W1
Part Type:
Product Line:
DXE Part Number:
ECT-W1
Meter Frequency Range:
1.8-30 MHz
Minimum Power Range:
150 mW
Maximum Power Range:
140 W
Meter Style:
Remote computer
Meter Illumination:
No
Peak Power Readout:
Yes
Peak Hold:
No
Built-In Frequency Counter:
No
Meter RF Connector Type:
BNC female
DC Power Required:
Yes
Remote Sensor Included:
No
SWR/Wattmeter Width:
5.375 in.
SWR/Wattmeter Height:
0.900 in.
SWR/Wattmeter Depth:
2.688 in.
Quantity:
Sold as a kit.
Notes:
No meter movement included. Basic LED indicator only on PC board. Kit intended for remote or internal metering projects.
Elecraft W1 140W Computing Wattmeter/SWR Bridge Kit
The Elecraft W1 140W Computing Wattmeter and SWR Bridge kit is a versatile microprocessor-based RF power and SWR meter that can be used with any transmitter from QRP levels to 140 watts output from 1.8 to 30 MHz. The W1 automatically selects the proper power range of up to 1.4, 14, or 140 watts and indicates the peak forward power and SWR on built-in bar graph LEDs.
High resolution power and SWR readings are also available for data display on a computer via a 3.5mm connector for an optional USB cable. Designed to be used as a stand-alone unit, the W1 can also be built into existing equipment or an enclosure of your choice. Shipped as an unassembled full kit.
Features include:
* Auto-ranging power ranges: 150 mW to 1.4 W, 1.5 W to 14 W, 15W to 140 W
* SWR ranges 1.1 to greater than 5:1
* Computer readable via USB
* Accuracy: 0.5 dB typical
* Powered by 9 V battery or external 12 V DC
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