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Radio Amateurs

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Re: Radio Amateurs
« Reply #15 on: March 14, 2015, 05:39:04 PM »
 

altman

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@ altman,

If you intend to transmit, yes you need to pass various tests/exams.
Not sure how complex they are in Canada..??
Most countries have some form of entry/novice level tests/exams.

There should be info & contact details here: https://www.rac.ca/

Dave

Thanx , will check it out .
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Re: Radio Amateurs @altman and Wiresfree
« Reply #16 on: March 16, 2015, 05:46:15 AM »
 

darrell derrick

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I know of this resource Shannon Morse on HAK5 on line at Revision3 webtv . They introduced me to this SDR, TV dongle thing, to get down on HF 600 kc to 30 mc,  There is a kit to build, a x10 divider circuit , like a */10 multiplier circuit same as a mixer that allows the dongle to see below 40 Mhz. There is a full blown TransxCiever kit avail that they explain  "Great Scott Radio kits "  Its meant to be dual band 2meter and uhf hamm band . Its low power like 5 watts , but you can keep building till you got all the power you want.
But I want to look at VHF and up as far as I can for radio testing and repair, Did I mention I have a brain injury and polio, the polio is 60 yrs ago the brain frack is only 5 or so years ago. I have to read every thing very carefully and make notes on papre to do any thing like' sudo apt get -q install xyz' . mostly every cli I ever use is on a tablet in my coat pocket.  and all the new words too ,even old words have new definitions . I can see learning python 3 along with Putty < for my ancient terminal driven test equipment , IFR 2935 and Avcom psa 65c require tty command emulators . like XTERM > is going to be a documented in note book event. I miss having my mind,and short term memory. Backing up in my driveway is a chore I have to look back like 3 times to get it right. 
As far as antennas depends where you are . very simple Jpoles can be made from cable scraps or dipoles. The antenna you had on your truck was prolly for 27 Mhz but it will also work multiples or halves/quarters/eights of 11 meters , up or down it will have sweet spots in it.
Getting this stuff to work on linux is my current problem. I tried to install TOR browser till I gave up. but I did load it on my Dell 810 with no problem.
BTW the 207 H cable was in fact a 208 H cable  but it still works , and I would think opto isolator . with a usb home brew kit. use a RJ45 box to build it in , make newly required adaptor cables  from scarps, as things change I bet they all go to USB or Micro USB any way ..

 

Re: Radio Amateurs @altman and Wiresfree
« Reply #17 on: March 16, 2015, 07:53:37 AM »
 

altman

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I know of this resource Shannon Morse on HAK5 on line at Revision3 webtv . They introduced me to this SDR, TV dongle thing, to get down on HF 600 kc to 30 mc,  There is a kit to build, a x10 divider circuit , like a */10 multiplier circuit same as a mixer that allows the dongle to see below 40 Mhz. There is a full blown TransxCiever kit avail that they explain  "Great Scott Radio kits "  Its meant to be dual band 2meter and uhf hamm band . Its low power like 5 watts , but you can keep building till you got all the power you want.
But I want to look at VHF and up as far as I can for radio testing and repair, Did I mention I have a brain injury and polio, the polio is 60 yrs ago the brain frack is only 5 or so years ago. I have to read every thing very carefully and make notes on papre to do any thing like' sudo apt get -q install xyz' . mostly every cli I ever use is on a tablet in my coat pocket.  and all the new words too ,even old words have new definitions . I can see learning python 3 along with Putty < for my ancient terminal driven test equipment , IFR 2935 and Avcom psa 65c require tty command emulators . like XTERM > is going to be a documented in note book event. I miss having my mind,and short term memory. Backing up in my driveway is a chore I have to look back like 3 times to get it right. 
As far as antennas depends where you are . very simple Jpoles can be made from cable scraps or dipoles. The antenna you had on your truck was prolly for 27 Mhz but it will also work multiples or halves/quarters/eights of 11 meters , up or down it will have sweet spots in it.
Getting this stuff to work on linux is my current problem. I tried to install TOR browser till I gave up. but I did load it on my Dell 810 with no problem.
BTW the 207 H cable was in fact a 208 H cable  but it still works , and I would think opto isolator . with a usb home brew kit. use a RJ45 box to build it in , make newly required adaptor cables  from scarps, as things change I bet they all go to USB or Micro USB any way ..

Thanx will check it out .
HP DV7 i7 2670QM 500.1GB 8GB Ram Dual-Boot LL2.4 Beta / Extix 15.1.1 64-bit 
Dell Inspiron 1720 CrunchBang 11

Duckduckgo ( for now )
 

Re: Radio Amateurs
« Reply #18 on: March 16, 2015, 01:32:06 PM »
 

bitsnpcs

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Full circle has a project with SDR dongle in issue #93, you might like.
Last Edit: March 16, 2015, 05:52:53 PM by bitsnpcs
 

Re: Radio Amateurs
« Reply #19 on: March 19, 2015, 05:40:48 AM »
 

N4RPS

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Hello!

I would need a fixed antenna , the one I have is for big trucks that I used to drive .

Making your own antenna is part of the fun. You can cut the wire antenna to length for the frequency you're using, eliminating the need for an antenna tuner.

QRP radios (<= 5W output) are relatively inexpensive to buy or build, but you WILL need that license. When the conditions are just right, the far-flung areas you can reach with one will surprise you...

73 DE N4RPS
Rob


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Re: Radio Amateurs
« Reply #20 on: August 20, 2015, 10:49:05 PM »
 

darrell derrick

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Hi making low power amps and such??, I have seen, retired, dead, broke, unwanted, hand-helds at swap meets, old police, commercial , fire radios etc. I bought a box full , for 20$ , mostly for the mechanical parts, I know there will be some, VHF/UHF rf amps modules in there. When I was leaving, the guy carried another box full of portables, with accessories, to my truck. I all ways seem to provoke this response. My current need is to make a simple DC brushed motor controller, for my electric mobility scooter,s, the originals , are shot there is no good litt for them any way.. I bought a small device that was supposed to be able to carry, up to 10 amps at 24 volts, it worked some, but only on the smallest scooter. I was thinking I could just build one with a Big SCR, and use this toy controller, to gate it. Any one have some<even one> Big SCRs, retired from service, could be from AC motors even.
 


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