PKL Technologies Open Path TDL Gas Monitors (Digital Based Sensors)
Spectra-1 has been designed with proprietary DSP (digital signal processing) techniques to provide an accurate, relaible, and cost effective gas monitor. Instrument drift common with most analog TDL sensors is eliminated. Detectable Gases: HF, CH4,
Read more on Environmental Expert (press release)

DX News — ARRL DX Bulletin #11:
The 10-10 International Mobile Contest, BARTG HF RTTY Contest, Russian DX Contest, QRP CW Fox Hunt, NCCC Sprint, SARL VHF/UHF Analogue/Digital Contest, CQIR – Ireland Calling, Oklahoma QSO Party, AGCW VHF/UHF CW Contest, Virginia QSO Party,
Read more on eHam.net

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