Review on Fumei GY561 Handheld Frequency Counter & Power Meter for Two-Way Radio – Digital Mini, 1MHz-2400MHz, 0.1W-50W by Ron Turner
Works but seems to have either calibration or internal stability issues.
Nice device, with operating instructions, VHF, shows more of the second harmonic frequency, power measurement was not stable, PL tone measurement was OK. Either a product quality issue or it was missing a proper initial factory calibration. The documentation included a rough calibration sequence, no attempt has yet been made to recalibrate the device.
- Frequency measurement range: 1-2400MHz. Power measurement range: 0.1W-50W
- Questionable purchase for seniors
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