Review on Fumei GY561 Handheld Frequency Counter & Power Meter for Two-Way Radio – Digital Mini, 1MHz-2400MHz, 0.1W-50W by John Brouillard
On HF - only frequency measurement, power measurement is useless.
Reads zero power regardless of input power 5-50 W on bands 10,12,15,17. The maximum output is 8 watts, measured at 20 meters and longer, regardless of an input power of 5-50 watts. For as little as $15 you can get a working model like the Surecom SW-102.
- With external antenna, frequency can only be measured without contact
- High price
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