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  Picture 001.jpg - here are pictures I took during a visit to the Port Radium troposcatter site circa 1974.  The diesel generators are Kato.  I had one really fine shot of the isles of rack equipment but cannot seem to find it just now.  Photo of one of the TWAT (yeah, that is what it said on it, Travelling Wave Amplifier Tube ha ha.) exciters and HPA Klystron amps are however included.  In that shot is a Klystron signal generator on the floor behind the racks.  I have that device in my lab now!  Brought it out via helicopter along with a bunch of 1-5/8" rigid coax when I had a chance years ago from the Snare Rapids site which was between hay River and Port Radium.  I also have three of the Northern Electric made parametric amplifiers from this system and some of the vernier knob tuneable cavity bandpass filters and mixers. These paramps ran hot with the tuning elements paramp varactor diode block, circulator and pump klystron all floating on a heated metal plate to keep it all dimensionally stable and low in drift. You could burn your fingers tuning it up.  I have some of the receiver manuals too and if of any interest, a full set of blueprints for this style antenna from the manufacturer, Dominion Bridge Co, Montreal.  The CNT tropos ran at between 1.7 and 2.3 GHz and used WR-430 aluminum waveguide.  I still have both alnico clamshell magnets from one of the HPA klystron tubes and use it on wheels to sweep my machine shop yard of welding rod stubs and other metal hazards. I still dabble in radio astronomy and have been setting up a teaching observatory at my farm property NW of Toronto but wish I had been able to keep some of the precious waveguide and other heavy bits that I just could not haul across Canada and store forever.  I had half a ton of actual TD-2 microwave rack gear too.  Nice waveguide hardware, none finer!  I miss the large antennas too.  I just scored a magnificent, ex Telesat 7.6m C-band transportable satellite transportable antenna last November from CBC Montreal after they used it for the last time on the Bejing Olympics feeds.  It is in my field now awaiting to be set up. I had to assemble a crew of five to dismantle it for it's relocation some 400 miles. When it is set up, it will be my best radio telescope here.  The good news is that my back end instrumentation available now is light years more powerful, so that helps make up a bit for lost collection area, and winters are a lot shorter here too!  That's a big bonus as I get older. ;)I give you permission to post any of the pictures I sent to you on your website if you wish.  Please just give me credit in name as the photographer.  You may post the Omni article if you wish which helps explain my involvement.  I suspect some folks have heard of me and might like to read how one of these "swords was turned into plowshares".  That is a quote from Professor Phillip Morrison, MIT who made it describing my work at Hay River during a SETI conference that I attended so many years ago.  
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Picture 001 | here are pictures I took during a visit to the Port Radium troposcatter site circa 1974. The diesel generators are Kato. I had one really fine shot of the isles of rack equipment but cannot seem to find it just now. Photo of one of the TWAT (yeah, that is what it said on it, Travelling Wave Amplifier Tube ha ha.) exciters and HPA Klystron amps are however included. In that shot is a Klystron signal generator on the floor behind the racks. I have that device in my lab now! Brought it out via helicopter along with a bunch of 1-5/8" rigid coax when I had a chance years ago from the Snare Rapids site which was between hay River and Port Radium. I also have three of the Northern Electric made parametric amplifiers from this system and some of the vernier knob tuneable cavity bandpass filters and mixers. These paramps ran hot with the tuning elements paramp varactor diode block, circulator and pump klystron all floating on a heated metal plate to keep it all dimensionally stable and low in drift. You could burn your fingers tuning it up. I have some of the receiver manuals too and if of any interest, a full set of blueprints for this style antenna from the manufacturer, Dominion Bridge Co, Montreal. The CNT tropos ran at between 1.7 and 2.3 GHz and used WR-430 aluminum waveguide. I still have both alnico clamshell magnets from one of the HPA klystron tubes and use it on wheels to sweep my machine shop yard of welding rod stubs and other metal hazards. I still dabble in radio astronomy and have been setting up a teaching observatory at my farm property NW of Toronto but wish I had been able to keep some of the precious waveguide and other heavy bits that I just could not haul across Canada and store forever. I had half a ton of actual TD-2 microwave rack gear too. Nice waveguide hardware, none finer! I miss the large antennas too. I just scored a magnificent, ex Telesat 7.6m C-band transportable satellite transportable antenna last November from CBC Montreal after they used it for the last time on the Bejing Olympics feeds. It is in my field now awaiting to be set up. I had to assemble a crew of five to dismantle it for it's relocation some 400 miles. When it is set up, it will be my best radio telescope here. The good news is that my back end instrumentation available now is light years more powerful, so that helps make up a bit for lost collection area, and winters are a lot shorter here too! That's a big bonus as I get older. ;) I give you permission to post any of the pictures I sent to you on your website if you wish. Please just give me credit in name as the photographer. You may post the Omni article if you wish which helps explain my involvement. I suspect some folks have heard of me and might like to read how one of these "swords was turned into plowshares". That is a quote from Professor Phillip Morrison, MIT who made it describing my work at Hay River during a SETI conference that I attended so many years ago. Download
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