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Spectrum Analyzer: OWON XSA1015-TG Spectrum Analyzer
Hi people, With respect to measuring uBITX harmonics and spurs, has anyone had experience of the OWON XSA1015-TG Spectrum Analyzer? Any comments? Thanks in advance and 73. Kevin VK3DAP / ZL2DAP.
Hi people, With respect to measuring uBITX harmonics and spurs, has anyone had experience of the OWON XSA1015-TG Spectrum Analyzer? Any comments? Thanks in advance and 73. Kevin VK3DAP / ZL2DAP.
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By
Kevin Luxford
· #61439
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Tool Tips -- rectangular holes
I clamp a short length of angle iron along the line of the opening, and file to that. Gives nice straight line. Rectangular chassis punches are available but are verra costly, and the larger ones requ
I clamp a short length of angle iron along the line of the opening, and file to that. Gives nice straight line. Rectangular chassis punches are available but are verra costly, and the larger ones requ
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Kevin Luxford
· #61155
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QSX 10W HF Linear PA kit
Hello from the rapidly warming and drying out downunder. I have got as far as winding the transformers and installing them. My method for remembering which was the three turn and which was the two tur
Hello from the rapidly warming and drying out downunder. I have got as far as winding the transformers and installing them. My method for remembering which was the three turn and which was the two tur
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Kevin Luxford
· #61106
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Harmonics and Relay Replacement
I have replaced all relays on my V3 board with the Axicom 450 types. Mine are coloured black, not white as some of you in CONUS have obtained. Mine were from Mouser. Good old Hakko FR-300 slurped up m
I have replaced all relays on my V3 board with the Axicom 450 types. Mine are coloured black, not white as some of you in CONUS have obtained. Mine were from Mouser. Good old Hakko FR-300 slurped up m
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Kevin Luxford
· #61016
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JackAl System Preview
Hi Dr Jack, I would like a Jackal when it is ready. I have a Teensy 3.6 and the audio module and a 7 inch capacitive touch screen. 73, Kevin VK3DAP / ZL2DAP
Hi Dr Jack, I would like a Jackal when it is ready. I have a Teensy 3.6 and the audio module and a 7 inch capacitive touch screen. 73, Kevin VK3DAP / ZL2DAP
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By
Kevin Luxford
· #59821
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Long delivery time this time
#ubitx
In the past I have ordered, and have had delivered, several rigs from Farhan, using India Post. It has generally taken about four weeks from order to delivery in Australia. However, a Ver 4 uBITX orde
In the past I have ordered, and have had delivered, several rigs from Farhan, using India Post. It has generally taken about four weeks from order to delivery in Australia. However, a Ver 4 uBITX orde
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By
Kevin Luxford
· #55183
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experience with Sunil VU3SUA's enclosures
#ubitx
Sunil has a list of countries to which he can send goods via DHL. If your country is not on the list, you will have to receive your order via India Post. This can take four weeks or more (to Australia
Sunil has a list of countries to which he can send goods via DHL. If your country is not on the list, you will have to receive your order via India Post. This can take four weeks or more (to Australia
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Kevin Luxford
· #52744
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The BITeensio board is here.
#ubitx
To my dear XYL's chagrin, I have just purchased a stereo AmScope SE400-X microscope with fixed 5x or 10x magnifications (depending upon the eyepice selected). This has a 9 inch distance to the work ob
To my dear XYL's chagrin, I have just purchased a stereo AmScope SE400-X microscope with fixed 5x or 10x magnifications (depending upon the eyepice selected). This has a 9 inch distance to the work ob
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Kevin Luxford
· #52180
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Removing surface mounted resistor
#ubitx
Another option is to use Chip Quik solder remover. This product is heated with your iron over existing solder joints forming a low temp melting point alloy whi ch stays liquid long enough to lift the
Another option is to use Chip Quik solder remover. This product is heated with your iron over existing solder joints forming a low temp melting point alloy whi ch stays liquid long enough to lift the
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By
Kevin Luxford
· #51472
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The new uBITX boards are here
Sarma, by strange coinciďence our labs requiring all those computations were associated with wavelengths of spectral lines of substances at room temp then cooled with liquid nitrogen. Email from Farha
Sarma, by strange coinciďence our labs requiring all those computations were associated with wavelengths of spectral lines of substances at room temp then cooled with liquid nitrogen. Email from Farha
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Kevin Luxford
· #50857
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The new uBITX boards are here
Well you will just have to fall back on your Chambers Seven Figure Mathematical tables. Or perhaps you can get your hands on a Monroematic electric calculator or even one of those crank and shift jobs
Well you will just have to fall back on your Chambers Seven Figure Mathematical tables. Or perhaps you can get your hands on a Monroematic electric calculator or even one of those crank and shift jobs
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By
Kevin Luxford
· #50831
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Teensy 3.5/3.6 upgrade for uBITX
Jack, I am looking forward to the unveiling. 73, Kevin VK3DAP / ZL2DAP
Jack, I am looking forward to the unveiling. 73, Kevin VK3DAP / ZL2DAP
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By
Kevin Luxford
· #47062
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Pressing 14 pin LCDs into I2C service
#parts
I had in my bowerbird boxes some LCD displays purchased some years ago. Thinking that if an I2C controller backback were to be attached, they would make handy displays for BITX or any other project. O
I had in my bowerbird boxes some LCD displays purchased some years ago. Thinking that if an I2C controller backback were to be attached, they would make handy displays for BITX or any other project. O
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Kevin Luxford
· #46359
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#parts
#parts
Here is some information on shipping times from India to Australia (not uBITX but uBITX case and BITX addon accessories from amateurradiokits.in (Sunil Kumar Lakhani, VU3SUA). BITX addon accessories p
Here is some information on shipping times from India to Australia (not uBITX but uBITX case and BITX addon accessories from amateurradiokits.in (Sunil Kumar Lakhani, VU3SUA). BITX addon accessories p
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Kevin Luxford
· #46253
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Kenwood KMC-32 DTMF Microphone
#ubitx
#bitx20
#bitx40
Anyone using this DTMF mic with any flavour of BITX? 73 Kevin VK3DAP / ZL2DAP
Anyone using this DTMF mic with any flavour of BITX? 73 Kevin VK3DAP / ZL2DAP
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By
Kevin Luxford
· #45855
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The issues of the TDA2822
Hi Raj I am trying to implement your fixes for the audio problem. I have a 16 ohm speaker on the way to me. I am just trying to install a 78M09 voltage regulator. I have removed the green masking over
Hi Raj I am trying to implement your fixes for the audio problem. I have a 16 ohm speaker on the way to me. I am just trying to install a 78M09 voltage regulator. I have removed the green masking over
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Kevin Luxford
· #45320
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ubitx order
Andy, I think that you will find that India Post tracking ceases as soon as the parcel leaves India. You will probably not see any further tracking stages until the parcel arrives at your address. Vy
Andy, I think that you will find that India Post tracking ceases as soon as the parcel leaves India. You will probably not see any further tracking stages until the parcel arrives at your address. Vy
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By
Kevin Luxford
· #44305
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Raduino, powered by a Teensy 3.2.
#ubitx
#bitx40
Postage from the US to down here in Oz is now unbelievably expensive compared with what the rates were a few years ago. And we also face the current exchange rate plus the money changers margin. By co
Postage from the US to down here in Oz is now unbelievably expensive compared with what the rates were a few years ago. And we also face the current exchange rate plus the money changers margin. By co
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Kevin Luxford
· #43708
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#bitx40help Probably need new Raduino
#bitx40help
Hello all, Replaced D7, then found fuse blown. Replaced fuse, applied power, and raduino display lights up. Rotating the tune pot changes frequency. Only problem that is evident now is an intermittent
Hello all, Replaced D7, then found fuse blown. Replaced fuse, applied power, and raduino display lights up. Rotating the tune pot changes frequency. Only problem that is evident now is an intermittent
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By
Kevin Luxford
· #41863
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#bitx40help Probably need new Raduino
#bitx40help
Hello Raj and all, Thanks Raj, I did indeed find that D7 was blown. I unsoldered it from the board and tacked a 1N4148 in its place, paying due heed to the polarity of the diode. I had taken the radui
Hello Raj and all, Thanks Raj, I did indeed find that D7 was blown. I unsoldered it from the board and tacked a 1N4148 in its place, paying due heed to the polarity of the diode. I had taken the radui
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By
Kevin Luxford
· #41861
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