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Curve Tracing - using an Octopus?
Well,Some time ago, I built an experimental curve tracer attachment for an Oscilloscope using an "Octopus" design. You can find many such examples on Google.I was very much inspired by this excellent...
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More Counting with Nixies
Well,As part of my TEAS which I described previously, I have acquired a further HP Counter/Timer as "spares" for the one I already have (yes, this is part of the condition it seems).So, I started with...
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Arduino Nano - Upload Issues
Well,For some time I have been having issues with my cheap eBay sourced Chinese Arduino Nano boards. These are not genuine and are completely ripped off by the Chinese - really we should all be...
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Stationary Mode - Really?
Well,I've been fiddling quite a bit this week with frequency standards (man with two watches never know correct time et cetera). All of the GPS based frequency standards rely on the 1 PPS signal from...
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OCXO Update
Well,You may recall back here where I built a VE2ZAZÂ GPS disciplined OCXO as a frequency reference for my shack. This was back in 2013 and the unit has pretty much trundled along, doing its thing ever...
View ArticleTS-890 Again
Well,I've been asked to put a video together on why I love the TS-890; well here it is:
View ArticleTS-890 and Data Mode Configuration
Well,Following my video last time, I have been asked by a few folk to do some more. Here is a video on Digital Mode configuration for the rig:and another one with a few more bits 'n' bobs:Enjoy.
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A collection of FT990s - A gaggle?
Well,I've had an old Yaesu FT-990 for quite a while; its a delightful analogue radio with very few modern bells and whistles.Now, I've previously opened up and admitted I suffer with TEAS; I suspect...
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FT-990 CAT Interface
Well,Very much in line with what I did back here; I have today knocked together a PC interface for my FT-990 with its new control board from here.I've included a audio interface and RTS driven PTT just...
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Es'hail-2 - really?
Well,I've just lashed together a first attempt at receiving the downlink from Es'hail-2.If you have been asleep, the is the first ever Geostationary Amateur Satellite and is a bit fab 'n' groovy!I'm...
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Portsdown - again?
Well,I've been building myself another Portsdown DATV transmitter.This is the Portsdown 2019 - instead of the Filter Modulator board in the last version, this uses a LimeSDR Mini.I'm rather pleased...
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es'hail-2 dish feed
Well,Very much inspired by the fun back here, I figured it would be great to try and make a better single feed for the dish for both bands.This seemed to be just the ticket.Not this needs to be...
View ArticleADSB Receiver - Really?
Well,For some time I've run an ADSB receiver here called PiAware - It's by flightaware, runs on a Raspberry Pi and uses an RTL dongle and a short bit of wire wedged in the shack window as an antenna -...
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SSTV - though a Satellite?
Well,Been playing some more with my Es'Hail-2 setup.I noticed yesterday some SSTV signals on the band from Mauritius; I've not used SSTV before so I installed MMSSTV and have since had some QSOs.I've...
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Digital TV - really? QO-100 again!
Well,Over the weekend I have been playing with the software KG-STV.This is a kind of digital TV; its slow scan TV that's digitised on TX.It took me a while to get the software to key the radio -...
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70cm DATV - Portsdown again!
Well,You may remember a while ago I built a Portsdown 2019, well today I've been thinking about how to get that on the air on 70cm (437MHz).John, G4BAO does a nice driver amp kit for this frequency,...
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A Portsdown Conundrum
Well,As part of my Es'hail-2 experiments, I am now preparing a DATV TX system for the satellite. I've ordered a Spectrian linear amplifier which seems to be the way to go, it looks like this but isnt...
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Es on 4 - really?
Well,I've always found the 4M band quite a challenge, but also very interesting. I don't really know how well the 'parasitically' fed antenna works I built here, but I certainly put out some RF.The...
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IC-9100 or the new fangled IC-9700?
Well,I've been using a Icom IC-9100 as by base station 2M/70cm and 23cm rig for a number of years. The radio cost a small fortune but now, due to the release of the IC-9700, is worth about 3 bob and a...
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More Sequencing Secrets
Well,I've been making another sequencer with a bias-t included; it builds on the stuff I did back here. This time I ordered some kits from the very excellent W6PQL.The basic schematic for the sequencer...
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