Blowing up a Yaesu FT-891

Some posts should never need to be written. Here is one of them. I spent the weekend installing my FT-891 into the car – Radio under the passengers front seat, control head onto the dash, and new FC-40…

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Yaesu FC30 Tuner Protocol

Or how I (almost) interfaced an Yaesu FT-891 radio to an Icom tuner. I recently decided to replace my Icom IC708G in the car, as it had a weird ALC fault on transmit. It is afterall, a radio…

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Modern radios get shredded.

Or why we can’t have nice things…. I have always had a soft spot for military hardware – from an era when I was much younger where I got to work on beautifully constructed electronics that was designed…

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Repairing a Yaesu FC757-AT Auto Tuner

I recently picked up a FC757-AT tuner to compliment my FT757Gx. I got it for an absolute steal, and it turns out that it was because it was faulty 🙂 (You have to love estate sales on eBay)….

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Using the FCC to your advantage in identifying radio gear

No Picture

Often I will find myself needing information about electronics where there is apparently no service information available on the web. This is where FCC processes become extremely handy. Let me introduce to you the FCC approvals database. Lets…

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What is a Monochromator

On the local amateur radio reflector recently there was an interesting discussion about a Monochromator which was being sold at the local auction place. I spent a bit of time working as a Technical Officer in the Chemistry…

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Why being non Vendor focused is important

I am reminded of a story from my youth that helped me to learn the importance of not being vendor focused. Sadly this lesson was learnt while working as a technician in an environment where I was expected…

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Should You Use Off-Brand Batteries in Two-Way Radios?

I recently read an article on the web that attempted to discuss whether or not you should use ‘off brand’ batteries in handheld devices. It resoundingly said ‘no’. The single argument that it provided was that the radio…

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Spectral purity of Baofeng radios

One topic that is fascinating to watch rolling round on Facebook is the reactions of the crowd who hate the inexpensively made Baofeng radios. People talk about how you will set off all the repeaters in range on…

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Looking at the Heathkit HD-1416 Code Practice Oscillator

Today my Heathkit Code Practice Oscillator arrived. I was lucky enough to pick it up on eBay for a song, but the shipping took forever. Anyway, it’s a beautifully constructed unit, built from a multivibrator circuit, based around…

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