Robert Brown wrote:
>
> Friends in Radio Land-
>
> Jim Reisert, AD1C, gave some interesting results in his posting on
> HEARD/USA QSO Statistics. From the propagation standpoint, there are
> some items of interest:
>
> 1) the lack of contacts on 10 meters
> 2) the lack of contacts with W5s on 160 CW
> 3) the few contacts with W0s on 160 CW
>
> as shown in his statistics, given below:
>
> W1 W2 W3 W4 W5 W6 W7 W8 W9 W0
> -- -- -- -- -- -- -- -- -- --
> 15 CW: 59 89 67 187 88 4 5 84 123 103
> 15 SSB: 39 60 54 118 32 8 16 83 81 58
> 17 CW: 73 85 59 92 15 12 18 56 52 33
> 17 SSB: 146 181 110 268 103 15 23 148 155 104
> 20 CW: 246 353 224 615 354 443 246 308 320 273
> 20 RTTY: 49 80 40 124 80 65 51 60 75 88
> 20 SSB: 498 676 414 954 566 506 384 528 476 420
> 30 CW: 274 339 213 482 98 96 100 255 230 204
> 40 CW: 345 427 285 472 205 473 369 321 325 298
> 40 SSB: 169 162 124 164 21 84 108 118 107 89
> 40 SSB: 169 162 124 164 21 84 108 118 107 89
> 80 CW: 99 95 65 64 6 50 52 47 50 33
> 80 SSB: 134 113 56 55 8 42 99 51 43 45
> 160 CW: 54 40 27 15 0 6 8 20 10 4
> SAT CW: 0 0 0 2 0 1 0 0 0 0
> SAT SSB: 1 1 2 9 0 0 0 0 0 0
> TOTAL: 2186 2701 1740 3621 1576 1805 1479 2079 2047 1752
>
> The lack of contacts on 10 meters is just the fact that we're at Solar
> Minimum and don't have the F-region ionization to support 10 m propagation.
>
> The problems on 160 CW are not related to the level of ionization
> up there; there's plenty to keep 160 m signals moving. Instead,
> the problems really have to do with all the great-circle paths
> from Heard which arrive in the USA close to the 106 W meridian of
> longitude. During the DXpedition, those paths were fully illuminated
> in the southern polar cap and D-region absorption took a heavy tool.
> Check your mapping program to see where your path went; to have much
> of a chance, it would need to have its southern-most excursion in some
> darkness.
>
> For those Low Banders who still need Heard Island, you'll have to wait
> til there's a DXpedition in a different season. That might be a long
> wait but there's no way to get around the power of sunlit electrons
Interesting commentary on the Heard Island QSO break-out. I have
one question; Did these numbers get broken out by call sign or from
where the station actually operated. In other words, if a N2CKZ worked
Heard from Illinois, was that listed in the W9 or Central US
category or simply credited as a W2? Inquiring minds need to know.
73, and good hunting,
E F Todd Benson, N2CKZ Elmhurst, IL
> 73,
>
> Bob, NM7M
>
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