Month: July 2025

SX17ASTRO

SX17ASTRO On the Air for the 17th National Amateur Astronomy Camp

We are pleased to announce that the special callsign SX17ASTRO will be active from Friday, July 25th to Friday, August 8th, 2025, in celebration of the 17th National Amateur Astronomy Camp (Π.Ε.Ε.Α.), which will take […]

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SX9G DXpedition 2025

SX9G – Gavdos Island, EU-187: An International Amateur Radio DXpedition

From July 24 to 29, 2025, a multinational team of amateur radio operators will activate Gavdos Island using the special callsign SX9G, participating in the global IOTA (Islands On The Air) contest during the weekend […]

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SZ1A-20M-Tower-Upgrade

Tower Re(s)urrection: The 20M Yagi Returns to SZ1A

Our beloved 4-element monobander Yagi for the 20-meter band had been taken down temporarily to make room for the installation of our new 21-meter tower, and for a thorough technical inspection and servicing. With the […]

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Selectivity and Sensitivity in NBFM Receivers Fundamental Performance Parameters

Selectivity and Sensitivity in NBFM Receivers: Fundamental Performance Parameters

Selectivity and Sensitivity in NBFM Receivers: Fundamental Performance Parameters In the context of wireless communications, the quality and performance of a receiver are crucial factors that determine the reliability and efficiency of a system. In […]

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