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#1
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Intermediate Licence project
I would be grateful if anyone could suggest or provide me with a circuit
diagram for a Homebrew ATU with SWR meter or circuit diagrans for these seperately. I hope to build one for use on the HF bands. Many Thanks for your help M3GBQ |
#2
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"S C" wrote in message ...
I would be grateful if anyone could suggest or provide me with a circuit diagram for a Homebrew ATU with SWR meter or circuit diagrans for these seperately. I hope to build one for use on the HF bands. Many Thanks for your help M3GBQ Lots of designs around, try this one: http://www.alg.demon.co.uk/radio/qrp/port_atu.htm You may find the study material you can download from my website useful when working for you 2E. Good luck with your studies & 73 -- Brian Reay www.g8osn.org.uk www.amateurradiotraining.org.uk FP#898 |
#3
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"M3"? You'd be better off to post your question in uk.rec.radio.cb.
This is a NG for Radio Hams, of which company you are not a member. "S C" wrote in message ... I would be grateful if anyone could suggest or provide me with a circuit diagram for a Homebrew ATU with SWR meter or circuit diagrans for these seperately. I hope to build one for use on the HF bands. Many Thanks for your help M3GBQ |
#4
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"Airy R. Bean" wrote in message ... "M3"? You'd be better off to post your question in uk.rec.radio.cb. This is a NG for Radio Hams, of which company you are not a member. "S C" wrote in message WOW! What a stupid response Bean. I hope you respond in like vein when actually speaking to real live people, so they will have an opportunity to knock you on your ass which you so obviously deserve. W4ZCB |
#5
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On Sun, 12 Sep 2004 17:17:01 GMT, "Harold E. Johnson"
wrote: "Airy R. Bean" wrote in message ... "M3"? You'd be better off to post your question in uk.rec.radio.cb. This is a NG for Radio Hams, of which company you are not a member. "S C" wrote in message WOW! What a stupid response Bean. I hope you respond in like vein when actually speaking to real live people, so they will have an opportunity to knock you on your ass which you so obviously deserve. W4ZCB So Airy R Bean finally infested this newsgroup as well ! I only see his posts if they are quoted in others, since most of us on the uk.radio.amateur newsgroup killfiled him long ago. Just ignore him. He is really Gareth Alun Evans of Chippenham England. His callsign is G4SDW and you can find his address in the Callbook if you'd like to send him a greetings card. Now that will bring a torrent of abuse from him ... just wait and see! Peter, G3PHO |
#6
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You behave like a 5-year old
"Peter" wrote in message ... So Airy R Bean finally infested this newsgroup as well ! |
#7
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I would be grateful if anyone could suggest or provide me with a circuit
diagram for a Homebrew ATU with SWR meter or circuit diagrans for these seperately. ============================ On the assumption that you would use this equipment once you have upgraded to the Intermediate Licence ,the ATU's power rating is to be in excess of 50 Watts . Perhaps you can state to which type of feeder the AMU (Antenna Matching Unit) is to be connected ; a coax feeder or a balanced feeder. Frank GM0CSZ / KN6WH |
#8
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take neigh notice yon M3.
These bitter old porkers, there only jealous of your youth. They were all unlicensed CB'ers once, they just won't admit it. Airy still has plenty of CB buddies. He soon shuts up when you remind him of his 4x4 driving country side wreaking mates... |
#9
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On Mon, 13 Sep 2004 02:26:04 +0100, wrote:
They were all unlicensed CB'ers once, they just won't admit it. Oh no they were not! |
#10
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"S C" wrote in message ... I would be grateful if anyone could suggest or provide me with a circuit diagram for a Homebrew ATU with SWR meter or circuit diagrans for these seperately. The simplest ATU is an L-match. Comprises a coil and a capacitor. Explain that it is useful for matching high-impedence end fed wires approx half wavelength long to 50 ohm and you should pass. On the SWR meter, the cheapest way you can build something that does a similar job is to build a resistive bridge (check if this is acceptable first). This requires a meter movement a diode or two and a handful of resistors and capacitors. There is no coil winding or toroids. The big benefit of this is that you can tune up without putting a signal to air as you would with an SWR bridge. They are also excellent for low power transmitters as they are more sensitive than many SWR meters (particularly on the lower HF range). 73, Peter VK3YE |
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