I've been dragging the PixelLoop to hamfests for a bit more than a year now and
I can't imagine a better compact receiving antenna. They JUST work, especially
in compromise situations.
Jim WD5IYT in our shop has the K9AY up and it is excellent for the low bands
when you have crummy ground conductivity. Most of Central Texas is rocky hills
so the K9AY shines.
73 and Happy Holidays all!
Greg - K5GJ
Sent from Greg's iPhone
> On Dec 21, 2013, at 2:48 PM, Michael Walker <va3mw@portcredit.net> wrote:
>
> Hi Gary
>
> If you chat with the guys that run WSPR, they all use receiving loops of
> some type for 80 and 160. From 14-28Mhz, you can use many choices as you
> are not trying to get rid of atmospheric noises.
>
> Mike va3mw
>
>
>
>> On Sat, Dec 21, 2013 at 3:18 PM, GARY HUBER <glhuber@msn.com> wrote:
>>
>> Dave,
>>
>> I have NOT played with the magnetic loop. I live in a rural subdivision
>> on a one acre lot so I have some room for antennas but little desire for
>> more than a tri-bander (TH-7) at 50 feet, a top loaded HF-2V with 160M-mod
>> kit and seasonally the K9AY loop system. I've had a TH-7 and HF-2V up at
>> this location for over twenty-six years (both replaced with a new version
>> or repaired at least once) and they have taken my DXCC total from 130 or so
>> when we moved here to 347. This location is electrically quiet; for example
>> the 20 meter noise floor near 14070 is -125 dBm at the moment. At times
>> connecting an antenna to the Flex-1500 increases the NF only by 6 dB
>> greater than an when on a dummy load.
>>
>> When I move to town due to age or medical condition, if I can still play
>> radio, I probably will try a magnetic loop, a HEX beam, and another HF-2V
>> if there's room. The one thing I have NOT mentioned and something to
>> consider is the required separation between the TX antenna and the K9AY
>> Loop System.... I think its 100 feet if you operate QRO, but you should
>> read the documentation to avoid damage to the pre-amp or your receiver. As
>> my FLEX-1500 is operated as receive only and as the sub-receiver of an
>> OMNI-VII and Titan-425 station, I made sure I had more than the minimum
>> distance and put a RF limiter in the RX line. YMMV...
>>
>>
>> 73 ES DX,
>> Gary -- AB9M
>>
>> -----Original Message----- From: David Movius
>> Sent: Saturday, December 21, 2013 12:52 PM
>> To: 'GARY HUBER'
>> Subject: RE: [Flexradio] Receiving antennas
>>
>> Gary --
>>
>> Thanks for the input. Am reading up on the loop system. Do you have any
>> reflections or thoughts on the magnetic loop (e.g., Pixel)? Saw it
>> demonstrated at Visalia and Dayton last spring and the signal:noise ratio
>> improvement was impressive at the broadcast band frequencies. Am wondering
>> about 14-28 Mhz. range.
>>
>> So far, only positive comments are coming for the K9AY loop system. No
>> comments yet on magnetic loop system.
>>
>> Vy 73,
>>
>> Dave W7IWW
>>
>>
>> -----Original Message-----
>> From: FlexRadio [mailto:flexradio-bounces@flex-radio.biz] On Behalf Of
>> GARY
>> HUBER
>> Sent: Saturday, December 21, 2013 11:30 AM
>> To: FlexRadio Reflector
>> Subject: Re: [Flexradio] Receiving antennas
>>
>> You may notice significant reduction in signal strength when using the K9AY
>> Loop System. You will also notice a significant improvement in the signal
>> to
>> noise ratio. I have found that DX signals which are marginal copy on the TX
>> antenna ( a vertical ) are solid copy on the K9AY Loop System. The K9AY
>> Loop System is a great 160-80-40 solution IF you cannot install a 400 foot
>> or longer Beverage.....
>>
>> 73 ES DX,
>> Gary -- AB9M
>>
>> -----Original Message-----
>> From: paim
>> Sent: Saturday, December 21, 2013 11:39 AM
>> To: David Movius ; FlexRadio@flex-radio.biz
>> Subject: Re: [Flexradio] Receiving antennas
>>
>> http://www.hard-core-dx.com/nordicdx/antenna/loop/k9ay/k9ay_orig.pdf
>>
>> i use it and it is the best
>>
>> vy 73
>> E.P g0uut
>>
>>
>>
>>
>>
>>
>> ________________________________
>> From: David Movius <dave.movius@gmail.com>
>> To: FlexRadio@flex-radio.biz
>> Sent: Saturday, 21 December 2013, 17:37
>> Subject: [Flexradio] Receiving antennas
>>
>>
>> Interested in hearing about experiences with various receiving antennas
>> useful for input to Flex 6000 series radios (monitoring various band
>> slices)
>> that are effective up to 30 Mhz, and possible 6 meters.
>>
>>
>>
>> 1. Magnetic Loop - better mounted low, or at top of tower, or
>> doesn't
>> matter?
>>
>> 2. Wire arrays?
>>
>>
>>
>> Dave W7IWW
>>
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