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Microwave CommunicationsThe Radio Amateur's Microwave Communications
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The Radio Amateur's Microwave Communications
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The Radio Amateur's Microwave Communications
microwave-communications.blogspot.com
Microwaves And The Amateur Satellite Program - Microwave Communications
http://microwave-communications.blogspot.com/2010/07/microwaves-and-amateur-satellite.html
The Radio Amateur's Microwave Communications. Sunday, July 11, 2010. Microwaves And The Amateur Satellite Program. Fig 1-7. OSCAR 8, a Phase-II Amateur Radio satellite, orbits approximately 800 miles above the Earth, where it relays 7D-cm,2-meter, and to-meter signals. Future (Phase-III) spacecraft will use 432, 1260, and 10,000 MHz to provide hemisphere-wide communications capability. The microwave spectrum, with its reliable line-of-sight propagation, is particularly appealing for future geostationary ...
The Low End - Microwave Communications
http://microwave-communications.blogspot.com/2010/07/low-end.html
The Radio Amateur's Microwave Communications. Tuesday, July 6, 2010. Tuesday, July 06, 2010. Microwaves And The Amateur Satellite Program. 5 and 10 em. THE EARLY DAYS AND GEAR FOR MICROWAVES. The Amateurs Microwave Spectrum. Template images by molotovcoketail.
July 2010
http://microwave-communications.blogspot.com/2010_07_01_archive.html
The Radio Amateur's Microwave Communications. Sunday, July 11, 2010. Microwaves And The Amateur Satellite Program. Fig 1-7. OSCAR 8, a Phase-II Amateur Radio satellite, orbits approximately 800 miles above the Earth, where it relays 7D-cm,2-meter, and to-meter signals. Future (Phase-III) spacecraft will use 432, 1260, and 10,000 MHz to provide hemisphere-wide communications capability. The microwave spectrum, with its reliable line-of-sight propagation, is particularly appealing for future geostationary ...
3 cm - Microwave Communications
http://microwave-communications.blogspot.com/2010/07/3-cm.html
The Radio Amateur's Microwave Communications. Tuesday, July 6, 2010. A further clarification of this technique is shown in Fig. 1-4. The two communicating Gunnplexers are frequency separated by the amount of the desired i-f, which is 146 MHz in this example. Both Gunnplexer transmitters remain on continuously, thus providing a local oscillator for mixing with the 10-GHz signal from the other unit. The ultimate result is a 146-MHz signal appearing at the i-f port of each Gunnplexer. Tuesday, July 06, 2010.
Higher Bands - Microwave Communications
http://microwave-communications.blogspot.com/2010/07/higher-bands.html
The Radio Amateur's Microwave Communications. Tuesday, July 6, 2010. The 15-mm and higher amateur microwave bands represent truly challenging and unpioneered frontiers in communications. Until recent times, the prime drawback to amateur operations in this range has been a lack of available gear, parts, and technical information. Yes, today 's Golden Age of Radio is alive and well-particularly in the unpioneered regions of microwave communications! See Fig. 1-5. Tuesday, July 06, 2010. 5 and 10 em.
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October 2010
http://new-ham-radio.blogspot.com/2010_10_01_archive.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Friday, October 29, 2010. What is wrong with operating FM simplex between 145.8 and 146 MHz? What is wrong with operating FM simplex between 145.8 and 146 MHz? I hardly ever hear signals in that part of the band. This touches on the issue of voluntary band planning, which was addressed in “Washington Mailbox” in the December 2000 QST. You might want to take a look at that column. Just because you can’t hear the satellite signa...
April 2011
http://new-ham-radio.blogspot.com/2011_04_01_archive.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Saturday, April 16, 2011. The V terminals are reading 5 volts. What are the S terminals for? Clayton, KE4RTM, asks, “I have a simple question regarding a 5-V Lambda power supply. On the output side there are –S and –V, ground, and S and V terminals. The V terminals are reading 5 volts. What are the S terminals for? From QST March 2001. ป้ายกำกับ: power supply. From QST March 2001. ป้ายกำกับ: G5RV antenna. Craig, KC8POE, asks, “...
My son wants to run sophisticated gaming software on the computer ...
http://new-ham-radio.blogspot.com/2011/10/my-son-wants-to-run-sophisticated.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Tuesday, October 18, 2011. My son wants to run sophisticated gaming software on the computer . Motherboard chipset is “old” as far as the PC market is concerned, but I’ve measured it to be as fast, if not faster, than the newer 815E chipset. Go with a 440BX-chipset motherboard and you’ll save a little cash without sacrificing performance. From QST April 2001. ป้ายกำกับ: Pentium II. Basic Electricity and Electronics.
What does the ‘dBi’ mean when used to rate an antenna
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The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Tuesday, October 18, 2011. What does the ‘dBi’ mean when used to rate an antenna. Jerry, KC8OTH, asks, “What does the ‘dBi’ mean when. Used to rate an antenna. I will presume that you are somewhat familiar with the decibel. If not, at least a few numbers will put it into perspective. Decibel is a term that can compare two powers or voltage levels. The formulas are:. DB = 10log (P1/P2) where P1 and P2 are two power levels. Than it wo...
I’m just getting started with the HF digital modes, but I’ve run into trouble already...
http://new-ham-radio.blogspot.com/2011/07/im-just-getting-started-with-hf-digital.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Thursday, July 7, 2011. I’m just getting started with the HF digital modes, but I’ve run into trouble already. For the IARU Region in which he lives, I’m sure his suggestions make perfect sense. For amateurs living in Region 2 (North and South America), it will cause no end of headaches. See the ITU/IARU map in Figure 1. Figure 1—ITU zone/IARU region map. The IARU regions are. You’ll find a comprehensive chart of IARU Region.
August 2010
http://new-ham-radio.blogspot.com/2010_08_01_archive.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Wednesday, August 4, 2010. The abbreviation “IF.” Can you help? I’m studying to upgrade my license and I am having difficulty with some of the terminology that keeps popping up. In particular, the abbreviation “IF.” Can you help? Figure 2—A basic block diagram of a superheterodyne receiver. Figure 3—Block diagram of a double-conversion superhet with two IF sections. From QST December 2000. ป้ายกำกับ: IF frequency. Normally the body ...
November 2010
http://new-ham-radio.blogspot.com/2010_11_01_archive.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Monday, November 1, 2010. I have an old Swan TB-3HA tribander beam antenna. How can I check and recondition the traps? Ray, WA3CLD, asks, “I have an old Swan TB-3HA. Tribander beam antenna. How can I check and recondition. It has 4 driven-element traps, 2 director traps. And no reflector traps. Can I adapt one of the driven element. Pairs of traps for the reflector? Traps are designed to present a high impedance at the. I’m th...
October 2011
http://new-ham-radio.blogspot.com/2011_10_01_archive.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Wednesday, October 19, 2011. Over the past two years or so, I have received dozens of QSL cards from DX stations . Joe, WT7V, asks, “Over the past two years or so, I have received dozens of QSL cards from DX stations that I’ve never worked. In fact, many of these QSLs confirm contacts supposedly made when my rig was completely off the air for weeks at a time. Do you think someone could be bootlegging my call sign? From QST June 2001.
Over the past two years or so, I have received dozens of QSL cards from DX stations ...
http://new-ham-radio.blogspot.com/2011/10/over-past-two-years-or-so-i-have.html
The Doctor is In New Ham Companion. A Question Answer for Amateur Radio. Wednesday, October 19, 2011. Over the past two years or so, I have received dozens of QSL cards from DX stations . Joe, WT7V, asks, “Over the past two years or so, I have received dozens of QSL cards from DX stations that I’ve never worked. In fact, many of these QSLs confirm contacts supposedly made when my rig was completely off the air for weeks at a time. Do you think someone could be bootlegging my call sign? From QST June 2001.
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microwave-communications.blogspot.com
Microwave Communications
The Radio Amateur's Microwave Communications. Sunday, July 11, 2010. Microwaves And The Amateur Satellite Program. Fig 1-7. OSCAR 8, a Phase-II Amateur Radio satellite, orbits approximately 800 miles above the Earth, where it relays 7D-cm,2-meter, and to-meter signals. Future (Phase-III) spacecraft will use 432, 1260, and 10,000 MHz to provide hemisphere-wide communications capability. The microwave spectrum, with its reliable line-of-sight propagation, is particularly appealing for future geostationary ...
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microwave-convection.blogspot.com
microwave convection
Friday, 2 August 2013. Sharp R-1874 1.1-Cubic-Foot 850-Watt Over-The-Range Convection Microwave, Stainless review and best price. Sharp R-1874 1.1-Cubic-Foot 850-Watt Over-The-Range Convection Microwave, Stainless description. Sharp microwave oven R-1874 stainless over the range convection 8 sensor cook settings plus automatic combination cooking and broiling. User reviews for Sharp R-1874 1.1-Cubic-Foot 850-Watt Over-The-Range Convection Microwave, Stainless -. GE PROFILE PVM1790 STAINLESS STEEL OVER-TH...
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microwave-cooking.blogspot.com
Microwave Cooking
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