There is now a new playlist, to make it easier to access these recordings: https://www.youtube.com/playlist?list=PLzBTybazXT4123hs3KiBO28PeMTzc6Cks

Since the SDRplay RSP family of devices ‘thinks’ in terms of ‘gain reduction’ (i.e. attenuation), the values you want to

ezCol which supports SDRplay RSPduo SDR and provides ability to change gain settings for this SDR: https://www.astronomy.me.uk/wp-content/uploads/2025/11/ezColS251104aPeeeeRSPduosupports-gain-changes.zip Latest ezCon versions:

Here’s a practical “all the ones that matter” list, with 2025 peak nights and typical peak rates (ZHR under dark,

Or….Options in the “RF switching without the clacky bits”! A solid-state coaxial relay is basically an RF switch that uses

ChatGPT: For 1420 MHz reference switching where speed doesn’t matter, go with a latching electromechanical DPDT transfer (coaxial) switch. It gives

Question: I am concerned that I have made a bad choice by buying Tohtsu CX-520D coaxial relay from ebay to

Tohtsu CX-520D coaxial relay purchased from ebay Nov 2025: Specifications: Three x type N female connector, has a common and

From Alex Pettit, via SARA Mailing List, 5/11/2025: Andrew, see if this analogy helps : The Top 3 Data/Drift Pair shows

What if any is potential benefit for adding filtering and amplification at antenna in meteor scatter detection arrangement at 143.050