A.N.A.R.T.S. NEWS BULLETIN FOR 14TH MAY 2006.
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ANARTS now has a web site at www.anarts.com.au where information
about the society can be found, as well as the weekly broadcast texts.
Views expressed in this news bulletin are not necessarily
those of the Broadcast Officer, the Relay Officers, or of
the Society.
Items in this broadcast include
1. Cols column
2. News item re Broadband over Power Lines
3. IPS REPORT
4. VK2SG RTTY DX report
5. ARRL DX News
6. Anarts Information
Col's Column
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Propagation of Radio Waves.
The effect of the Ionosphere on the Sky Wave.
The Radio transmitted from the antenna reaches the Ionosphere at an
oblique angle. It is not 'Reflected' in the same sense that a ray of
light is reflected from a mirror. The wave enters the ionosphere and
is bent by 'Refraction', gradually bending more and more as it enters
deeper into the ionosphere and then emerges from the layer and is
returned to earth.
A good example is: A straight stick is held at an oblique angle in a
pool of water. The stick appears to be bent where it enters the water.
This is because the light rays travelling from the stick to the eye
bend at the surface of the water.
Light rays, passing from a more dense medium to a less dense medium
are bent away from the normal. Conversely, rays passing from a less
dense medium to a more dense medium are bent towards the normal.
The reason for the bending of the light rays lies in the fact that
the velocity of the ray in the water. which is the denser medium, is
less than air.
As the wave train approaches the junction of the water
and air, the upper of each wave fron enters the air before the lower
part. Because of the lower density of the air medium, the wave front
moves at increased velocity, resulting in the entire wave being bent
Away from the normal as it enter the air.
The degree of bending taking place at the juntion of the two media is
determined by the relationship known as the 'Refractive Index'.
In the water-air example, the refractive index, water to air, equals
Velocity of light in water, over the Velocity of light in air.
Next week we look at the analogy of the water-air media to that of
the propagation of radio waves through the ionosphere.
I would like to remind all our listeners/viewers, that Anarts WW
RTTY Contest is only a month away now, please consider giving it a
go this year. More on that in the very near future.
73's Col VK2CTD
NEWS ITEM
An ARRL-sponsored independent engineering study to accurately quantify
the interference potential of Broadband over Power Line is set to start
in the very near future. In addition, the League soon will elicit
interference reports from amateurs in communities where BPL trials are
known to be under way.
'We're contracting for an independent measurement of potential interaction
between BPL and Amateur Radio,' said ARRL CEO David Sumner, K1ZZ. The
study--to be conducted under the auspices of certified professional
engineers--not only will examine and document how BPL might affect HF and
low-VHF amateur operation but how Amateur Radio operation could affect BPL
systems.
The ARRL-sponsored engineering study should be completed within a couple
of months, Sumner said.
In a related initiative, the ARRL will be contacting amateurs in about a
half-dozen US communities where BPL field trials now are in progress. The
League will ask amateurs to listen on the air for any increase in noise
level that might be related to the BPL trial.
The ARRL's solicitation includes a form to document suspected instances of
harmful interference from BPL. Sumner says the League hopes the effort
will result in a 'body of technical evidence that will protect the Amateur
Service from this source of potential interference.'
In a related development, a California technology company this month wrote
the FCC's Office of Engineering and Technology to refute ARRL assertions
that BPL necessarily poses a severe interference potential. Corridor
Systems http://www.corridor.biz says its 'breakthrough' BPL system,
operated under existing Part 15 rules, uses frequencies in the 2 to 20 GHz
range, will not interfere with HF and low-VHF reception and can provide up
to 216 MB per second throughput.
from the ARRL Letter vol. 22, no. 48
IPS Weekly Solar and Geophysical Report 5/11th May
SUMMARY
Date 05 06 07 08 09 10 11
10cm flux 87 87 86 85 83 78 76
AFr index 8 14 17 5 2 4 18 est
Aaus index 7 19 12 4 3 3 13 est
T index 47 30 34 28 22 29 38
Solar flare activity was very low all week.
Geomagnetic activity observed for the Australian Region was quiet
to unsettled on 5th quiet to minor storm on 6th quiet to active
with isolated minor storm periods at high latitudes on 7th.
Geomagnetic activity was quiet to unsettled with isolated active
periods on 8th quiet on 9/10th and quiet to active on 11th.
Southern Australian Ionospheric F2 critical frequencies were enhanced
20 to 35 percent on 5th enhanced 15 percent to near predicted on 6th
and near predicted for the remainder of the period.
Forecast for 12/18th May
Solar activity should be low.
Geomagnetic activity should be active 13/14th May with minor storm
levels on 12th and quiet to unsettled on other days.
Frequencies should be briefly depressed after local dawn 13/14th
depressed to 15 percent on 12th and near predicted monthly values
on other days.
courtesy of the IPS Radio and Space Services
summary by Pat VK2JPA ANARTS Broadcast Officer
VK2SG RTTY DX NOTES FOR WEEK ENDING 11 MAY
This week our information came from AA5AU GU0SUP I5FLN K3GP 425-DX
nd the Central Europe clusternode DB0SPC. Thank you all.
Friday 5
0032-14084 YK1BA
0423-14080 VK9NS
0426-14086 XE3ISS
0509-14084 HK4QHD
0553-14082 4L4KK
0658-14083 JW0HZ
0835-18103 KH2/JK1FNN
0930-18103 A45XR
0948-21083 JY4NE
1134-14087 3B9FR
1351-14090 BI3H
1441-14081 JY4NE
1452-14091 EW1KP
1515-14083 KH2/JK1FNN
1521-14087 VR2XMT
1526-14087 JW0HZ
1528-14090 4K5D
1539-14084 EX8AI
1612-21082 JY4NE
1721-18102 A45XR
1733-18102 TI8CBT
1736-14081 5Z4ES
1757-14092 A71EM
1800-14088 CN8YZ
1801-10137 JW4GHA
1828-14083 CU6NS
1847-21091 SV9CVY
1908-10142 7X0RY
1910-14092 VR2XLN
1916-14098 OX3DB
1949-10143 CN8NK
1959-14085 KP4ED
2040-21082 EA9IB
2047-21080 WP3C
2055-14080 VK9NS
2116-10147 SV9CVY
2134-14085 TF3GC
2135-14081 YV5DSL
2140-14084 FG5GK
2214-10133 WP3C
2305--7040 WP3C
2335-14084 CN8KD
Saturday 6
0004-14085 CN8KD
0118-10144 SV9CVY
0512-14080 VK9NS
0546-18107 VR2XMT
0548-18108 A71EM
0800-18103 VK6DU
0818-18102 VQ9NL
1217-18105 P29SS
1252-14090 DZ50C
1254-18107 VR2XMT
1314-14080 4K5D
1326-18102 6W/HA3AUI
1350-14080 XX9BB
1351-18106 YB0JIV
1353-14083 BI3H
1416-14085 VR2XMT
1433-21087 ZS2DL
1439-14084 TK5MH
1442-14085 CU5AM
1445-14081 BV50CRA
1619-21085 ZP4KFX
1626-14098 JY4NE
1629-18103 A71EM
1641-18102 HP1JRA
1654-18102 TI8CBT
1709-14089 YB0EIN
1727-18103 CN8KD
1731-14082 TR8CA
1741-18103 A45XR
1742-21082 HC2NGF
1828-21080 LU6DAT
1839-14091 A45XR
1840-14081 EA9IB
1911-14086 EK6YL
1951-14080 BI3H
2011-10143 CN8NK
2014-21082 WP3C
2031-14092 TA1FA
2057-10143 4L4KK
2103-14080 7X0RY
2104-14085 VR2XMT
2110-14103 E21YDP
2113-10146 SV9CVY
2122--7041 7X0RY
2130-14093 4M5RY
2132-14090 LT0H
2139-14082 TG9SM
2141-14099 WP3C
2143-14090 CN8KD
2204-14088 HR2/LU1DY
2210-14085 EK6YL
2301-14090 XE1OK
2313-14091 NP3D
2316-18141 FM1HN
2331--7042 TA1DX
2344-14098 VK6HD
2355--7044 CM2ZT
2358-14081 TG9SM
Sunday 7
0008--7035 NP3D
0010--7034 PT7AZ
0017-14086 SV9CVY
0025--7035 CN8KD
0032--7033 WP3C
0033--7040 7X0RY
0035-14092 TG9SM
0043-14084 OA4DJW
0051--7044 CM2BT
0102--7046 4M5CY
0129--7048 HK4QHD
0157--7045 PY2NY
0227--7041 HR2/LU1DY
0238--7044 CO2UG
0629-21083 DV1JM
0630-14081 7X0RY
0659-14079 VK1AHS
0718-21082 7X0RY
0837-21075 VR2BG
0927-28083 UN8PO
1032-14082 KP4AH
1045-28092 YB0COU
1122-28081 7X0RY
1200-21091 9Q/ON7KEC
1223-14086 CN8KD
1248-14095 EK6YL
1317-14084 CO2GL
1358-14086 ER3ZZ
1415-14085 EK3GM
1420-14081 VP5JM
1422-14078 KP4JRS
1424-14086 EU8RZ
1517-14086 TG9SM
1533-21083 ZP4KFX
1610-14102 E21YDP
1634-14089 KP4AH
1647-21092 HK4QHD
1708-14083 4M5RY
1709--7035 EK6YL
1716-14078 DV1JM
1718-14096 EA8ANE
1733-14105 VR2XLN
1740-14104 YV5AAX
1804-14087 4X6UU
1820-14094 TA1FA
1826-18103 JW4GHA
1828-21082 HC2NGF
1845--7042 Z32PT
1847--7033 4X6UU
1858-14098 WP3C
1918-14080 ER3ZZ
1919-14103 TA1DX
1920-14097 S58N
1921-14081 LU2EE
1927-10144 CN8NK
1931-14082 TG9SM
1938-14098 EU1DX
2132-14087 V44KJ
2139-10138 DS5RYB
2202-10138 HL3IB
Monday 8
0507-14085 4K5D
1025-14080 XX9BB
1031-14080 P29ZAD
1139-14094 9K2CQ
1215-18106 YB0COU
1223-14080 BD7KLO
1257-18102 JW0HZ
1731-24900 TR8CA
1819-10141 EK6TA
1914-10140 JW4GHA
1927-14089 A45XR
2020-14082 OX3JZ
2113-14083 OX3DB
2133-14093 SV9CVY
2211-14091 CU3AF
2216-14085 FJ5DX
2238-14086 EK6TA
2308-14080 XE1GRR
Tuesday 9
0824--7040 JT1CO
1033-14086 CU6NS
1147-14084 JW0HZ
1151-14082 XX9BB
1159-14084 BD7KLO
1204 14085.8 YB0COD
1232-14087 VR2XLN
1318-14085 XE3IS
1356-18107 VR2XMT
1533-14082 XX9BB
1718-14087 9M2MT
1751-10140 T9/9A6PJZ
2038-14081 CO2GL
2048-14079 Z31GX
2110-14083 HK6PSG
2123-14086 OX3DB
2204-18104 FM5AA
2225-14087 HC1JP
2311-14080 VQ9NL
Wednesday 10
0314-14087 3B9FR
0615-14082 KH6ZM
0924-21083 XX9BB
1023-21084 P29SS
1050-21085 3B9/ON4LAC
1150-21088 E21YDP
1217-21084 YB0COU
1240-14081 BD7KLO
1308-18107 VR2XMT
1337-14083 XW8Z
1341-14086 CU6NS
1352-14091 DS1OFE
1425-18105 9V1CW
1441-18104 FM5AA
1458-14092 SV9CVY
1543-18105 4L4KK
1614-18103 TI8CBT
1733-14087 9J2CA
1817-21082 TU5JM
2007-14084 EW3BF
2106-14088 V44KJ
2218-14088 XE1ISS
2252-14082 EA6AZ
2316-14083 VR2BG
2327-21080 HC2NGF
Thursday 11
0021-14089 SV9CVY
0022-14085 NP3D
0445-14083 HP1JRA
0621-14083 XX9BB
0720-14090 VK6HD
0758-14086 IS0AFM
1139-14087 3B9FR
1152-14086 HK4QMH
1205-14084 BD7KLO
1231-14081 VK2KM
1255-14096 6K2DIO
1314-14095 KP4ED
1343-18107 VR2XMT
1356-14081 HS0ZBS
1407-14086 6K2DFG
1422-14086 DS3DGA
1426-21087 3B9FR
1535-14087 TA1EE
2009-14080 CN8YZ
2045-14083 TI8CBT
2055-14085 FG5GK
2111-14082 4Z4TL
2122-14084 S58M
2212-14085 LX1DA
2216-14089 A45XR
2243-14084 FM5AA
2248-14080 ST0RM
The VK2SG RTTY DX NOTES are distributed every week via the
Winlink network, and are also available on the Internet at
URL http://mailman.qth.net/mailman/listinfo/vk2sg-rtty
and the digital-dx reflector.
To subscribe to the digital-dx reflector send an e-mail
message to majordomo at mla.nifty.ne.jp as follows:
Subject:(blank) Message Body: subscribe digital-dx
For next weeks bulletin send your bandpass and notes of
interest to Don AA5AU email aa5au at bellsouth.net
Goetz Linss DJ3IW
No OPDX Bulletin this week, so we offer the ARRL DX Bulletin in
its place.
ARLD019 DX news
TUNISIA, 3V. 3V8BB is usually QRV on 20 or 17M using SSB around 1000z.
CHINA, BY. Yasuo JA6UBY is QRV as BY4CSS from Shanghai. Activity is
mostly on 20 and 15M using CW and SSB. QSL direct to home call.
THE GAMBIA, C5. Noz C5DXC is usually QRV on 15M using SSB between
1900 and 2100z.
CANARY ISLANDS, EA8. IZ0BTV IZ7FLP EC8ADS EC8ADW and EC8AUA are QRV
as ED8OTA from Gran Canaria IOTA AF-004 til May 14. QSL via IZ7FLP.
MARTINIQUE, FM. Jacky F5OIU will be QRV as FM/F5OIU May 13 to Jul 1
while here on holiday. He will use mostly CW but maybe some SSB and
digital modes as well. QSL to home call.
WALES, GW. G3KHZ and G4EDG are QRV as GW3KHZ/p from the St. Tudwals
slands IOTA EU-106 til May 15 weather-permitting. They are active only
on CW. QSL direct via G4EDG.
SOUTH KOREA, HL (DS). Han DS2GOO plans to be QRV as DS2GOO/3 from Nok
Island IOTA AS-080 May 18/21. Activity will be on 80 to 6M using SSB
RTTY and PSK31. QSL to home call.
THAILAND, HS. Fred K3ZO is QRV as HS0ZAR and has been active on 20M
using CW before 1500z and then before 1900z. QSL to home call.
SVALBARD, JW. Roger JW4GHA is QRV from Bear Island IOTA EU-027 til Jul.
He will place an emphasis on 6M during the last month of his stay.
ARGENTINA, LU. LU4DXU and LW1DRH are QRV as LU1DMG from Martin Garcia
Island IOTA SA-055. Activity is on 80 to 10M using CW and SSB.
QSL via LU4DXU.
DENMARK, OZ. Tom DL7UZO will be QRV as OZ/DL7UZO from the Jylland
North Group IOTA EU-171 May 13/20. Activity is on 80 to 2M using CW
SSB PSK31 RTTY and WSJT. QSL to home call.
PAPUA NEW GUINEA, P2. Jerry P29ZAD is usually QRV using digital modes
on 20 or 15M around 1000 to 1400z.
SWEDEN, SM. Special callsign SK60CG is active during the month of May
to celebrate King Carl Gustafs 60th birthday. QSL via SM6JSM.
ST. KITTS AND NEVIS, V4. Ken V44KJ has been QRV using RTTY on 20M from
around 2100 to 2300z.
MICRONESIA, V6. V63SC is generally QRV on 15M after 0500z. QSL via JM1LBO.
NORFOLK ISLAND, VK9N. Jim VK9NS has been QRV using RTTY on 20M around
0430z. QSL direct.
MACAO, XX9. Savio is QRV as XX9BB and has been active on 20 and 15M
using RTTY.
THIS WEEKEND ON THE RADIO.
The CQ-M International DX Contest
Thursday NCCC Sprint CW Ladder
VK/Trans-Tasman 80-Meter Phone Contest
Feld-Hell Spring Sprint 2006
Mid-Atlantic QSO Party
Alessandro Volta World Wide RTTY Contest
FISTS Spring CW Sprint
EACW International Contest and the 50 MHz Spring Sprint will
certainly keep contesters busy this weekend. The Run for the Bacon
QRP CW Contest is scheduled for May 15. Please see May QST, pages
99 and 100, and the ARRL and WA7BNM contest websites for details.
The Society can be contacted in the following ways
To Pat VK2JPA via patleeper at optusnet.com.au or
Col VK2CTD via ctdavies at bigpond.net.au or
you can drop a line to PO Box 93 Toongabbie NSW 2146.
73’s for this week from Pat VK2JPA broadcast Officer.
NNNN