Category Archives: Uncategorized

Studio Mic (Balanced XLR) to FT847 (Unbalanced) Input

I’d previously simply connected half of the balanced XLR mic output to the mic input of the 847; I was aware this wasn’t ideal (and I’d lose the benefit of a balanced mic cable!) but it worked and I’m ultimately … Continue reading

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Raspbian (Debian) Jessie and TNC-Pi

So, Raspbian has been updated to Debian Jessie;  we’re now in systemd land and the provided instructions from the tnc-pi instructions are no longer relevant. After installing Raspbian I recommend extending your partition / filesystem to fill the space available … Continue reading

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UK Foundation Licence Power Limit

When I progressed through the licence system over a decade ago I was taught that the foundation power limit referred to power measured at the radio, not the antenna.  This was different to the other licence classes which specified power … Continue reading

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Amplifier PTT Buffer Schematic

I’ve been keying my KW1000 linear using a relay to buffer the FT847.  The FT847 closed a 12V circuit across the relay and the relay in turn keyed whatever voltage/current the linear requires.  The relay in the KW1000 is old, large … Continue reading

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Simple Fan Dipole

After starting life as a fan dipole, my home antenna was later converted into a single 40m dipole due to unwanted interaction between the bands (at the time 40/30m).  Recently, the need to operate multiple bands made me reconsider my … Continue reading

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Simple & Cheap Speaker Upgrade

This will be a very brief post but I thought it too good not to share.  For some time now I’ve had my FT847 in a less than ideal position meaning I’ve either had muffled audio from the internal speaker … Continue reading

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Upgrade: Yaesu MH-31 to Studio Mic

Some time ago I started receiving reports that the audio on my FT847 was very narrow. After much investigation and eventually swapping mics with my FT817 I realised it was the mic that was faulty. Oddly, swapping the mic element … Continue reading

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Pixie CW Transceiver

Here’s a quick review of the Pixie CW Transceiver, built for 40m.  I ordered two identical kits from China via ebay, one for myself and another for a friend.  The kits arrived and appeared to be well put together;  the … Continue reading

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Review: Atom 40S Mobile Antenna

My previous experiences with HF mobile antennas have not been so great.  On a previous car a pro-am/hamstick mounted on the boot required bonding of the boot to car body with copper in order to ensure a good enough ‘ground’; … Continue reading

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Alternative, Portable or Mobile?

The UK licence conditions seem fairly clear when it comes to the definitions of mobile and portable; however on deeper analysis it’s clear some degree of interpretation is needed. Following a recent heated (to put it mildly) debate on the … Continue reading

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