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"Radiohead" wrote in message
... I am a relative newbie to the world of SW. I've just taken possession of a second-hand Kenwood R5000 comms receiver. It looks like a very nice piece of kit. It's not really practical for me to rig an outside antenna system at the moment, but I have heard that you can get SW antennas designed for indoor use. Can anyone recommend any? I am in the UK. And if anyone has any thoughts on the R5000, feel free. Thanks to Dave and RHF for your informative and helpful replies. One question to Dave - I realise this will may seem a silly question but why do you use two aerials? Do they have different characteristics, or maybe you use them for different frequency ranges? Radiohead. |
#2
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![]() Radiohead wrote: "Radiohead" wrote in message ... I am a relative newbie to the world of SW. I've just taken possession of a second-hand Kenwood R5000 comms receiver. It looks like a very nice piece of kit. It's not really practical for me to rig an outside antenna system at the moment, but I have heard that you can get SW antennas designed for indoor use. Can anyone recommend any? I am in the UK. And if anyone has any thoughts on the R5000, feel free. Thanks to Dave and RHF for your informative and helpful replies. One question to Dave - I realise this will may seem a silly question but why do you use two aerials? Do they have different characteristics, or maybe you use them for different frequency ranges? Radiohead. I currently have 15 aerials/antennas - 5 in the attic, two on the chimney, three on the tower and rest sort of spread-around the yard. I use them for different frequency ranges and radiation angles - short range HF is best at high angles whereas long range HF is best at low angles of radiation. 7 are transceive and the others receive only. Actually I have 16 since one feedline also has a relay box to select a short whip or a horizontal wire. And mine are all pretty simple ones, none-of the really complex high gain stuff that people with lots of space can install. Antennas are fun and challenging, easy and cheap to make, arguably the most important single contributer to a communications link. Improvement to your antenna system will almost always far outperform any improvement to the receiver that you can perform for the same amount of money and effort. Dave |
#3
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RH,
About the use of Two (2) InDoor Antennas with the Kenwood R-5000. KENWOOD-R-5000= http://groups.yahoo.com/group/kenwood-r5000/ Most people have an 'interested' in AM/MW Band and/or the Shortwave Bands. When you are limited to using an Indoor Antenna then the Physical Size Limits of an Indoor Antenna can make it harder to have one Antenna that does it all for the Kenwood R-5000. For Indoor Antennas, consider using one Antenna for the Shortwave Bands and another Antenna for the AM/MW Band. Loop Antennas generally are lower noise and work well as InDoor Antennas. Two Commercial (Ready Made) Loop Antennas that many people like are the Sony AN-LP1 for the Shortwave Bands and the C.Crane {Justice} Antenna for the AM/MW Band. http://groups.yahoo.com/group/Shortw...na/message/849 Both of these Antennas will work with the Kenwood R-5000. THE HOOK-UP - With the Kenwood R-5000 you could have the Sony AN-LP1 connected to the ANT#1 SO-239 Jack and the CCrane connected to the ANT#2 Terminals. THE "DO-IT-YOURSELF" ALTERNATIVE: {Home Made Loop Antennas} READ- The Right Loop Type for the Right Band http://groups.yahoo.com/group/loopantennas/message/1507 * Build a basic Box (16"-24") Loop Antenna for the AM/MW Band to use with the Kenwood R-5000. LOOPS= http://groups.yahoo.com/group/loopantennas/ - Back-of-the-Door as a "Super Loop" Antenna http://groups.yahoo.com/group/loopantennas/message/1314 - Homebrew Box Loop Antenna http://www.hard-core-dx.com/nordicdx.../homeloop.html - AMANDX - Unamplified Three or Four Foot Box Loop Antenna presented by Shawn Axelrod [VE4DX1SMA] http://www.angelfire.com/mb/amandx/loop.html * Build a simple Shield Coax Loop Antenna for the Shortwave Bands to use with the Kenwood R-5000. LOOPS= http://groups.yahoo.com/group/loopantennas/ READ - The Low Noise Receive ONLY Coax Loop Antennas for 160-10 Meter Bands. SW-LOOP= http://www.greertech.com/hfloop/mymagloop.html - Website presented by "ProgMan22000" (GreerTech.Com) READ - Dressler ARA60S -&- LF Engeering H-800 SkyMatch http://groups.yahoo.com/group/Shortw...na/message/245 READ - Select-A-Tenna -=V=- MFJ-956 http://groups.yahoo.com/group/Shortw...na/message/239 Use the Select-A-Tenna for the AM/MW Band and use the MFJ-956 for the Shortwave Bands is another possible InDoor "Dual" Antenna Solution. READ - Antenna Tuner / Pre-Selector = The 'little' Box that May Help ! http://groups.yahoo.com/group/Shortw...na/message/221 MFJ-956 "INDOOR" ACTIVE ANTENNA & PRE-SELECTOR + PLUS ! For a low cost INDOOR Antenna solution consider using the MFJ-956 Active Antenna with an On-the-Window Antenna. Couple the MFJ-956 (Multi-Use-Active-Antennas) with the a simple Random Wire Antenna that is folded into an On-the-Window Spiral. http://photos.groups.yahoo.com/group...WL-Antenna/lst [Photo Album] "WINDOW" On-the-Window Antennas Usually next to a Window is the best 'location' (Higher Signal Levels with Lower Noise Levels) that can be found for any InDoor Antennas. This is the so called OutSide [In-Doors] Antenna. ABOUT - The Vertical "Spiral" On-the-Window Random Wire Antenna: Use a Thin #28-36 Magnet Wire or #30 Insulated Kynar Wire Wrapping Wire taped directly to the Window with Clear Scotch Tape. Start with the Wire Antenna Element spaced 3" from the Edges of the Window and then use a Space of 1" in between wire element runs. QUESTION - IS AN "ATTIC" ANTENNA POSSIBLE AT YOUR LOCATION. READ - "Snake-in-the-Attic" SWL Antenna http://groups.yahoo.com/group/Shortw...na/message/313 Use a 'direct' "F" Connector to PL-259 Plug to the SO-239 LO-Z (50 Ohm) Jack. RadioShack Catalog # 278-258C This can plug into the Kenwood R-5000 Receiver or into the MFJ-956 Active Antenna / Pre-Selector. .. .. REMEMBER: "The AM/MW and Shortwave Antenna is 55.5% . . . of the Radio/Receiver and Antenna/Ground Reception Equation" http://groups.yahoo.com/group/Shortw...na/message/288 A Shortwave Antenna is "Equally" Important for Good Reception [.] .. .. iane ~ RHF .. Some Say: On A Clear Day You Can See Forever. http://groups.yahoo.com/group/Shortw...na/message/502 I BELIEVE: On A Clear Night... You Can Hear Forever and Beyond - The Beyond ! .. .. = = = "Radiohead" wrote in message = = = ... "Radiohead" wrote in message ... I am a relative newbie to the world of SW. I've just taken possession of a second-hand Kenwood R5000 comms receiver. It looks like a very nice piece of kit. It's not really practical for me to rig an outside antenna system at the moment, but I have heard that you can get SW antennas designed for indoor use. Can anyone recommend any? I am in the UK. And if anyone has any thoughts on the R5000, feel free. Thanks to Dave and RHF for your informative and helpful replies. One question to Dave - I realise this will may seem a silly question but why do you use two aerials? Do they have different characteristics, or maybe you use them for different frequency ranges? Radiohead. .. |
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