Roger G3XBM's (Mainly) Amateur Radio Blog

Way back, one of my (many!!) projects was this simple AM transceiver for local natters on 10m, such as at sunspot minimum or at night. The R...

Many years ago, before my stroke, I intended to build a simple 10m phone transceiver aimed at local contacts only. What I had in mind was a ...

With 10m again becoming a good DX band, it does not seem right talking about a simple cross-town natterer for 10m!  Mind you 10m is often a ...

Because of my poor health, progress on this project stopped. It would make an ideal winter project. It is designed as a local natter box, id...

Like many of my projects, this came to an abrupt halt after my 2013 stroke . I just hope someone, or some group, can take it further. It wou...

Years ago, before my stroke, I started work on the Tenbox, a very simple AM transceiver for 10m. As this used a super-regen receiver, this...

10m (28MHz) will probably be in decent shape for another 12 months, possibly more. After that, apart from summertime Es and the occasional N...

Like many of my projects, this transceiver is "on hold" due to my stroke. I am still too unwell to do much in the way of designi...

This evening, with little sign of F2 propagation, I ventured out to test the range of the 10m Tenbox TX as it is currently. For the TX anten...

The breadboarding of the Tenbox 10m AM transceiver for local cross-town night-time nattering is almost complete now, with just a receiver a...

Good progress today with the transmit side of my Tenbox 10m AM transceiver. The series  modulator was breadboarded a few days ago, so toda...

It is hard to contain my enthusiasm for simple transceivers and super-regen receivers! This video shows just how well the RX breadboard for ...

Although I had little time today, I experimented with adding varicap tuning to the Tenbox AM transceiver's RX section. Only problem wa...

Today I wanted check how good the Tenbox 10m AM receiver (part of the intended transceiver) was in real use as opposed to measuring it on a ...

Tenbox breadboard RX -115dBm MDS Today I breadboarded a simple, but sensitive receiver for 10m AM in the Fredbox tradition. The standard...

Thanks for the suggested names for my 10m DSB project. The one that wins is the Tenbox , which is the logical name following on from my earl...