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Reviews For: QRPguys pwr/swr/dummyload kit

Category: SWR & Wattmeters & Dummy Loads

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Review Summary For : QRPguys pwr/swr/dummyload kit
Reviews: 1MSRP: $25
Steve Weber (KD1JV) has designed a combination power meter/SWR bridge with a switchable internal dummy load. It is a nice addition to any QRP station for general use, tweaking transmitters, and testing antennas. It uses the Texas Instrument MSP430G2152 MCU powered with an ordinary 3V Lithium coin cell battery. It has low insertion loss through the binocular transformer and can stay in the circuit continuously or just for adjustments. The digital display is a three digit, 7 segment, led display for SWR and power readings. The useful frequency is 160m-10m. It will show power from 200mW to 10W, with >95% accuracy across all the bands, SWR from 1:1 to ~15:1, and the 50? dummy load is good for 12W. I/O connections at the rear are female BNC. Battery life is good (+10hr. at continuous use) and there is a display sleep mode, and a momentary switch for a “quick check” to extend battery life to many times beyond that. The board measures 3.18? (89mm) x 3.00? (76mm). All components are through hole. The normal tools required are a soldering iron with a small tip, rosin core solder, and small side cutters. The device can be built in an hour or so. On a difficulty scale of 1 to 5, 5 being the most difficult, this is rated at a 2 to 3 depending on your experience.
Product is in production
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# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
K6SDW Rating: 2022-02-21
Excellent QRP dummyload Time Owned: more than 12 months.
Well designed and useful pwr/swr/dummyload kit, very easy to build. It probably took me an hour or so to build. The assembly manual is first rate....

The device is either a dummyload (up to 12 watts) or a feed thru swr indicator. I don't have accurate test equipment but it appears this unit is fairly accurate.

QRPguys sell some amazing kits worth looking into. My only complaint about them is that they don't respond to any of my requests/questions and building a different kit it was missing a small part and again they never responded to my request.

I'm really impressed with this kit - if you run QRp you'll like this piece of test equipment.