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On Jan 22, 9:32*am, wrote:
On Jan 22, 5:41*pm, wrote: On Jan 22, 9:37 am, wrote: You bring up an interesting point Ace - I did get a continuous signal here and couldn't decide whether it was long path and short path at the same time, or whether I was actually getting the moon bounce? Food for thought! John Plimmer, Montagu, Western Cape Province, South Africa Terry wrote John, if you are into building your own stuff you may wish to consider building a variation of the PA0RDT min-whip that Dallas Lankford came up with.. http://www.kongsfjord.no/dl/Antennas...0Complementary %20Push-Pull%20Output%20Active%20Whip%20Antennas%20II.pdf I live very close, within three miles, *to two *MW stations that drive many active antennas, including the original PA0RDT mini-whip into overload. Dallas's version is bullet proof. Any IMD products are covered by the natural noise floor. Terry- Hide quoted text - Terry, Prof. Dallas is one of our greatest hobby experts but I think my RF Systems DX1 Pro MkII will outperform his designs. The DX1 is also bullet proof against close by stations, it has the highest IP3 point of any antenna on the market. - As for the PAORDT mini-whip, it is a piece of junk - that I should take off my listing = poor pickup and - sucks up every bit of noise in the neighbourhood. As for DIY, if I pick up a soldering iron I will do myself serious damage and burn the house down = not an option for a 70 ear old dodo! John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D, GE SRIII, Redsun RP2100 BW XCR 30, Sangean 803A. Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270 Kiwa MW Loop, PAORDT Roelof mini-whiphttp://www.dxing.info/about/dxers/plimmer.dx- Hide quoted text - - Show quoted text - JP, Well in your case and many others the PA0RDT Active Mini-Whip Antenna might make a good Noise Sense Antenna to use with a Noise Cancelling Antenna set-up. PA0RDT-Mini-Whip {Active} Antenna - Inch-per-Inch - It Works ! http://groups.google.com/group/rec.r...c4666783b0a2f6 Which Noise Cancelling Antenna Would You Choose ? http://groups.google.com/group/rec.r...8d8e13b3edab85 FWIW - I still think that the Active Mini-Whip Antenna performs better than the TINY-TENNA Active (Amplified) Antenna. http://www.hamradiofun.com/tinytenna.htm iane ~ RHF |
#13
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wrote:
On Jan 22, 5:41 pm, wrote: On Jan 22, 9:37 am, wrote: You bring up an interesting point Ace - I did get a continuous signal here and couldn't decide whether it was long path and short path at the same time, or whether I was actually getting the moon bounce? Food for thought! John Plimmer, Montagu, Western Cape Province, South Africa Terry wrote John, if you are into building your own stuff you may wish to consider building a variation of the PA0RDT min-whip that Dallas Lankford came up with.. http://www.kongsfjord.no/dl/Antennas...0Complementary %20Push-Pull%20Output%20Active%20Whip%20Antennas%20II.pdf I live very close, within three miles, to two MW stations that drive many active antennas, including the original PA0RDT mini-whip into overload. Dallas's version is bullet proof. Any IMD products are covered by the natural noise floor. Terry- Hide quoted text - Terry, Prof. Dallas is one of our greatest hobby experts but I think my RF Systems DX1 Pro MkII will outperform his designs. The DX1 is also bullet proof against close by stations, it has the highest IP3 point of any antenna on the market. As for the PAORDT mini-whip, it is a piece of junk that I should take off my listing = poor pickup and sucks up every bit of noise in the neighbourhood. As for DIY, if I pick up a soldering iron I will do myself serious damage and burn the house down = not an option for a 70 ear old dodo! John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D, GE SRIII, Redsun RP2100 BW XCR 30, Sangean 803A. Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270 Kiwa MW Loop, PAORDT Roelof mini-whip http://www.dxing.info/about/dxers/plimmer.dx Thy some MagEyes, you'll be reworking SMT in no time. |
#14
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wrote:
On Jan 22, 5:32 pm, wrote: On Jan 22, 5:41 pm, wrote: On Jan 22, 9:37 am, wrote: You bring up an interesting point Ace - I did get a continuous signal here and couldn't decide whether it was long path and short path at the same time, or whether I was actually getting the moon bounce? Food for thought! John Plimmer, Montagu, Western Cape Province, South Africa Terry wrote John, if you are into building your own stuff you may wish to consider building a variation of the PA0RDT min-whip that Dallas Lankford came up with.. http://www.kongsfjord.no/dl/Antennas...0Complementary %20Push-Pull%20Output%20Active%20Whip%20Antennas%20II.pdf I live very close, within three miles, to two MW stations that drive many active antennas, including the original PA0RDT mini-whip into overload. Dallas's version is bullet proof. Any IMD products are covered by the natural noise floor. Terry- Hide quoted text - Terry, Prof. Dallas is one of our greatest hobby experts but I think my RF Systems DX1 Pro MkII will outperform his designs. The DX1 is also bullet proof against close by stations, it has the highest IP3 point of any antenna on the market. As for the PAORDT mini-whip, it is a piece of junk that I should take off my listing = poor pickup and sucks up every bit of noise in the neighbourhood. As for DIY, if I pick up a soldering iron I will do myself serious damage and burn the house down = not an option for a 70 ear old dodo! John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s RX Icom IC-756 PRO III with MW mods Drake SW8 & ERGO software Sony 7600D, GE SRIII, Redsun RP2100 BW XCR 30, Sangean 803A. Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270 Kiwa MW Loop, PAORDT Roelof mini-whiphttp://www.dxing.info/about/dxers/plimmer.dx Yea, I can understand the risk of soldering...... I fell at work back in April of 2006 and manged in less then a second to wrack my right knee and right elbow. The Workers Compensation "gatekeeper" MD ingoted my complaints about increasing numbness and inability to control my right hand. I am right hand dominate. Finally in August of 2007 he decided he better send me to a hand/elbow surgeon because I couldn't hold anything in my right hand. After some attempts as using a brace to relieve the stress to allow the elbow to heal, the surgeon told me surgery was the only option. So in early November 2007 I had elbow and arm surgery. The main nerve that controls the fingers was begin pinched by two damaged muscle sheaths. I have one nice 4" scar across my arm and a 4" scar along my elbow over the funny bone. The upshot of all of this is I can't solder without endangering me, and everyone around me. I desperately needed a specially wired 3.5mm (1/8") male to male jumper. I managed to get it done but it was ugly and the lack of control in my right hand made holding a 700 degree F soldering iron interesting. When my wife got back from her mom's she resoldered it and forbade me from even thinking about soldering until and unless I get fine motor control back! It is very frustrating as I have building things since I was 9 and here I can't only not solder, but I can not build the new RF Entry Bulkhead I want. It would be insanely reckless, even by my standards, to handle power tools. From what the physical therapy (PT = pain and torture) team and the surgeon tell me I will likely never regain enough fine motor control to work with surface mount components and will have other "continuing issues". Bummer. I am very lucky because my wife is very 'crafty' and I have some friends who have pitched in, often on very short notice, to help me with my odd antenna needs. Terry You can teach the left hand to do anything the right could do. I practice this (eating and writing), even though both hands work. |
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