Roger G3XBM's (Mainly) Amateur Radio Blog

Ferrite rods are commonly used as RX antennas on MW and LW. They are compact and efficient for their intended purpose. Their use as TX anten...

W5OLF 1 inch 10m ferrite rod antenna A few people have experimented with transmitting antennas made with ferrite rods.  As long as the ferri...

Riccardo IU1OPK has been doing some very successful tests with ferrite rod TX antennas. on 40m.  For many this may be an answer to compact ...

This has appeared before, but I think it is worth repeating. Ferrite rods can be used on TX as long as the ferrite does not saturate. T...

This has been posted before, but results may surprise many. Perhaps I should repeat these tests with FT8 from this QTH. FT8 is not as go...

For the first time in nearly two years (because of my brain bleed) I managed to get into our loft space today. Quite by chance I came acr...

This evening I fired up the FT817 and the small 15mm diameter ferrite rod tuned with a 365pF air-spaced variable and have been spotted on WS...

Just for fun this morning I tried WSPRing on 7MHz using JUST a ferrite rod wound coil and a 365pF tuning capacitor as a tiny loop antenna si...

 In an attempt to overcome my high LF noise level, today I made a small ferrite rod antenna and preamp for 472kHz which I've been tr...

Just put a short video of my tiny ATU for 500kHz onto YouTube.

Assuming one is running very low powers (milliwatts) and use (say) 10 ferrite rods "in parallel" for the core is there any reason ...