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

Conrad What diameter are your turning loops for LCF / SCF ? 73 Dave

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

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

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 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

Hi Neil Please put me down for 3 boards Thanks Dave G8KHU

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

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 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

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

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

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

Cambridgeshire, about 5km from Peterborough Dave G8KHU

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

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

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

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

LO leakage ?

Thanks for the insight Kent, I'll make it well and truly adjustable first and then mount it properly afterwards. 73 all Dave