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Ecoflex 15?
Thank you Conrad :) I'm hoping to get a decent antenna setup erected this year and will try using SCF12-50 for the loops 73 Dave
Thank you Conrad :) I'm hoping to get a decent antenna setup erected this year and will try using SCF12-50 for the loops 73 Dave
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Dave G8KHU
· #61285
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Ecoflex 15?
Conrad What diameter are your turning loops for LCF / SCF ? 73 Dave
Conrad What diameter are your turning loops for LCF / SCF ? 73 Dave
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Dave G8KHU
· #61281
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Radiall Relay Using Outside Spec
Just had a browse on the Radiall website and found this: https://www.radiall.com/ewscore/download/d/f/bWVkaWEvZG9jdW1lbnRfbGlicmFyeS9UZWNobm9sb2d5X2d1aWRlX1Jldl8yLjAucGRm/ Page 23 discusses hot switch
Just had a browse on the Radiall website and found this: https://www.radiall.com/ewscore/download/d/f/bWVkaWEvZG9jdW1lbnRfbGlicmFyeS9UZWNobm9sb2d5X2d1aWRlX1Jldl8yLjAucGRm/ Page 23 discusses hot switch
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Dave G8KHU
· #61278
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Radiall Relay Using Outside Spec
Hi Mark and not wishing to teach granny to suck eggs but the 200W spec is the carry power, not the swiching power which from a hazy memory of a chat with Radiall many years ago was sub 1W. 73 Dave
Hi Mark and not wishing to teach granny to suck eggs but the 200W spec is the carry power, not the swiching power which from a hazy memory of a chat with Radiall many years ago was sub 1W. 73 Dave
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Dave G8KHU
· #61270
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Pin layout on Jupiter GPS modules
The data-sheet I have is LA010065A dated August 4, 2003. I can forward off group if you'd like it. FYI the mating connection is a Samtec SQW-110-01-L-D - Farnell 1668192 73 Dave
The data-sheet I have is LA010065A dated August 4, 2003. I can forward off group if you'd like it. FYI the mating connection is a Samtec SQW-110-01-L-D - Farnell 1668192 73 Dave
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Dave G8KHU
· #61070
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Pin layout on Jupiter GPS modules
The TU35 datasheet just shows pin 1 and offer no clues but I've just buzzed out the ground connections( - pins 10 and 13 -) on a TU35-D410-041 (note te extra D if thats of any significance) and the or
The TU35 datasheet just shows pin 1 and offer no clues but I've just buzzed out the ground connections( - pins 10 and 13 -) on a TU35-D410-041 (note te extra D if thats of any significance) and the or
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Dave G8KHU
· #61069
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F6BVA 10 GHz transverter PCB group order
Hi Neil Please put me down for 3 boards Thanks Dave G8KHU
Hi Neil Please put me down for 3 boards Thanks Dave G8KHU
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Dave G8KHU
· #60909
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Microstrip Filter designer
Andy QUCS has a filter synthesis wizard which has various microstrip options. I am using QucsStudio 3.3.2, which is recent, and the tool is simply Tools >> Filter Synthesis. Not a lot of learning curv
Andy QUCS has a filter synthesis wizard which has various microstrip options. I am using QucsStudio 3.3.2, which is recent, and the tool is simply Tools >> Filter Synthesis. Not a lot of learning curv
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Dave G8KHU
· #60306
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UK / EU Group Purchase of Si Radar Devices
Hi Neil Ive registered you interest. Last I heard (again August this year) only a few pre production 130 GHz and 300 GHz chips were available - at eye watering prices. I will check again though if thi
Hi Neil Ive registered you interest. Last I heard (again August this year) only a few pre production 130 GHz and 300 GHz chips were available - at eye watering prices. I will check again though if thi
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Dave G8KHU
· #59479
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UK / EU Group Purchase of Si Radar Devices
Hi All For information the last pricing I had from Silicon Radar (August 2020) for low quantities was as follows: TRX_120_001 35,47 Euro Each TRA_120_002 22,40 Euro Each LNA_024_004 10,50 Euro Each TR
Hi All For information the last pricing I had from Silicon Radar (August 2020) for low quantities was as follows: TRX_120_001 35,47 Euro Each TRA_120_002 22,40 Euro Each LNA_024_004 10,50 Euro Each TR
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Dave G8KHU
· #59472
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UK / EU Group Purchase of Si Radar Devices
Good Morning All I have also posted this on the 122GHz group. Earlier this year I co-ordinated a group purchase of Silicon Radar 122 GHz and 24 GHz devices (50+ devices) so that we could split Si Rada
Good Morning All I have also posted this on the 122GHz group. Earlier this year I co-ordinated a group purchase of Silicon Radar 122 GHz and 24 GHz devices (50+ devices) so that we could split Si Rada
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Dave G8KHU
· #59468
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Unsure what these are called
Hi Mike Further to John's reply the flange in your picture is choked (deep groove inside the O ring) ands should be mated to a plain flange. The guide does look to be WG16 (aka WR90 / R100), if so the
Hi Mike Further to John's reply the flange in your picture is choked (deep groove inside the O ring) ands should be mated to a plain flange. The guide does look to be WG16 (aka WR90 / R100), if so the
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Dave G8KHU
· #58500
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Wanted - surplus box with large panel meter
In the days of WBFM on 10GHz I used to use an audio VCO (CD4046) connected to the S meter as a dish alignment aid. I found it highly effective, especially as you could send the tone back over the talk
In the days of WBFM on 10GHz I used to use an audio VCO (CD4046) connected to the S meter as a dish alignment aid. I found it highly effective, especially as you could send the tone back over the talk
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Dave G8KHU
· #58000
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LDF4-50 - Good trader
Cambridgeshire, about 5km from Peterborough Dave G8KHU
Cambridgeshire, about 5km from Peterborough Dave G8KHU
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Dave G8KHU
· #57955
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LDF4-50 - Good trader
I'd just like to add a further endorsment to Robin's comments. I've just been to pick up a 40m length of LDF4-50 and 40m of SCF12-50 from Ralph - r-halliday@... - and found him to be a very straig
I'd just like to add a further endorsment to Robin's comments. I've just been to pick up a 40m length of LDF4-50 and 40m of SCF12-50 from Ralph - r-halliday@... - and found him to be a very straig
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Dave G8KHU
· #57908
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23cm feeds for Yagis
As it's a nice day I thought I'd take an hour off and post some measurements to show the effects of different polarisations. Unfortuanately - as it's a nice day - senior management has washed all the
As it's a nice day I thought I'd take an hour off and post some measurements to show the effects of different polarisations. Unfortuanately - as it's a nice day - senior management has washed all the
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Dave G8KHU
· #57207
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23cm feeds for Yagis
Especially for antenna ranges in restricted spaces like my garden where I have a clear lawn about 12m x 20m. The graph is of an antenna measurement I made a couple of years back with a separation of 3
Especially for antenna ranges in restricted spaces like my garden where I have a clear lawn about 12m x 20m. The graph is of an antenna measurement I made a couple of years back with a separation of 3
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Dave G8KHU
· #57199
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23cm feeds for Yagis
I'd certainly echo Chris's coments about the Pawsy stub match, I've used them on test antennas for pre-compliance tests with very good results - a 20 dB return loss on a dipole is easily obtainable. T
I'd certainly echo Chris's coments about the Pawsy stub match, I've used them on test antennas for pre-compliance tests with very good results - a 20 dB return loss on a dipole is easily obtainable. T
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Dave G8KHU
· #57191
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Sun noise on 3 cms
LO leakage ?
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Dave G8KHU
· #56872
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Phase center of the reference horn
Thanks for the insight Kent, I'll make it well and truly adjustable first and then mount it properly afterwards. 73 all Dave
Thanks for the insight Kent, I'll make it well and truly adjustable first and then mount it properly afterwards. 73 all Dave
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Dave G8KHU
· #56817
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