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Old October 16th 18, 04:45 PM posted to rec.radio.amateur.moderated,rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Oct 2014
Posts: 36
Default [IW5EDI] Kenwood KPG-46 programming cable


IW5EDI Simone - Ham-Radio

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Kenwood KPG-46 programming cable

Posted: 15 Oct 2018 03:10 PM PDT
http://www.iw5edi.com/ham-radio/2897...gramming-cable


Kenwood KPG-46 Programming Cable

Suitable for the following radios:

Kenwood TK-71 TK-81 serie
Kenwood TK-7302 / TK-8302
NX-700 de Kenwood / NX-800 Series
Kenwood TM-271E




Component List:

C1 470?f 16v.

C2 47?f 16v.

C3 a C6 10?f 16v.

IC1 MAX 232.

REG1 78L05.

The post Kenwood KPG-46 programming cable appeared first on IW5EDI Simone -
Ham-Radio.


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2m crossed yagi antenna

Posted: 15 Oct 2018 02:37 PM PDT
http://www.iw5edi.com/ham-radio/2885...d-yagi-antenna


This 2m yagi uses design data from DK72Bs excellent yagi website. The
element to boom mounting used here may be of use to some as it does not use
any polamid mounting / insulating clamps at a cost of 2 euro each ( this is
a 7 el crossed Yagi so twelve clamps would be needed ).



The photographs show how the 12mm dia tubular elements are mounted to but
insulated from the boom ( apart from the electrical center of the element
where the bolt passes through ).

A 25mm ( the width of the boom ) length of plastic 15mm dia central heating
pipe is cut along its axis. A suitable size hole is drilled through the
center of the pipe to allow the mounting bolt to pass. The plastic pipe is
then slid over the element and the mounting bolt passed through the element
/ plastic pipe and secured to the boom. End cheeks made from perspex sheet
are then slid over the element and screwed to the boom using stainless
steeel self tappers.

All of the aluminium used for this antenna came from a disused 6m Yagi and
a scrap 2m ZL special. The dipole centers from the 2m / 6m antennas are
also utilised here.

The driven element feed point has a impedance of 28 Ohms, so a quater wave
transmission line transformer with a characteristic impedance of 37.5 Ohms
( two 75 ohm coax cables in parallel ) is used to transform the driven
element feed point to 50 Ohms.

The quater wave matching section is made from Webro WF100 75 Ohm low loss
satelite cable. A MFJ-259B antenna analyser was used to determine the
physical length of the matching section. Using the above cable the length
is 38cm from one end of the outer sheath to the other ( i.e. the coaxial
intact length, not including the flying lead ends ).

The matching section connections to the N connector are thoroughly
insulated / sealed using self amalgamating rubber tape. Small drain holes
are drilled in the dipole centers lowest point to allow escape of water
rather than it going down the coax, over the years I have given up trying
to seal such connector housings, numerous methods have been tried and all
have eventually failed, a couple of 4mm drain holes saves a lot of grief.

The driven elements were adjusted slightly ( 3mm ) to bring the antennas
exactly resonant in the two parts of the 2m meter band, I set mine for
144.3 MHz ( SSB ) and 145.3 ( FM ), my thanks to my ever patient Wife for
holding the antenna / mast whilst these adjustments were carried out.



Article by M0DGQ originally available at http://www.m0dgq.co.uk/2m crossed
Yagi.html

The post 2m crossed yagi antenna appeared first on IW5EDI Simone -
Ham-Radio.


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Windom Antenna 10-80

Posted: 15 Oct 2018 02:23 PM PDT
http://www.iw5edi.com/ham-radio/2881...-antenna-10-80


A windom antenna for 10 to 80 meters band a design by PU1LHP



The post Windom Antenna 10-80 appeared first on IW5EDI Simone - Ham-Radio.


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A 40m Vertical Antenna

Posted: 15 Oct 2018 01:18 PM PDT
http://www.iw5edi.com/ham-radio/2872...rtical-antenna


Let me first say I make no claims of originality for this item. It is
intended as a simple, inexpensive solution for the newcomer to experiment
across the 40m band (7.0–7.2MHz) when only restricted space is available.
“A picture speaks a thousand words” so by including a couple I’ll keep it
as short as possible!

With the rally season upon us, it is an ideal time to pick up those bits
and pieces with which to experiment. The antenna described here consists of
a 50R coax fed, inductor loaded 5.44m vertical section mounted on a 1m
alloy tube driven into the ground and requires no radials although this may
well depend on the local soil structure.

The vertical itself is a salvaged unit (probably ex. CB) consisting of 4
telescoping aluminium sections with an extended length of 5.44m and its
mounting bracket.

The thick wire in the picture is the coax centre connection from the
bracket mounted SO239 connector to the coil.

The coil is of open air construction, 19 turns of 18 gauge copper wire
equally spaced over a length of 72mm with an inside diameter of 63mm and
with the coax centre connected 9 turns from the antenna end of the coil and
to the opposite end of the coil. I know this may seem strange but it works.

Connect to a transceiver, check the SWR and if necessary adjust the antenna
length or coil tap slightly and away you go, it’s that simple!

With the antenna set to resonate at 7.1MHz I found there was little need
for adjustment by the internal ATU of my TS2000 or FT1000MP-MkV to cover
the entire band.

Copyright David Barber G8OQW

Originally available at
http://www.southgatearc.org:80/news/...e_vertical.htm

The post A 40m Vertical Antenna appeared first on IW5EDI Simone - Ham-Radio.


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DX Century Club First post-WWII Countries List

Posted: 15 Oct 2018 12:56 PM PDT
http://www.iw5edi.com/ham-radio/2869...countries-list

Postwar Countries List
Official List for ARRL DX Contest and the Postwar DXCC
From QST, February 1947, pp. 49 50

MANY of the DX men have been at a loss to appraise accurately their postwar
DX accomplishments because the last revised Countries List was made up back
in 1939 and, since that time, many areas have been shuffled about and
postwar stations have cropped up in* locations never before considered.* To
reach as satisfactory a revision as possible, a committee made up of G2MI
for the R.S.G.B. slant, W6QD and his advisory group of several prominent
W6s, and a five-man ARRL Headquarters group has been collaborating during
the past few months to revise the list and polish off the rough edges.* A
number of changes have been made, but they have been made almost
unanimously, so it is felt that the present list is a good cross-section of
opinion.* A careful check of the list will show that a number of countries
have been added, and that several have been deleted or combined.

Naturally there will be some difference of opinion by some of the DX men,
and the collaborators will be pleased to entertain any criticisms.



In the meantime, it becomes your yardstick in the ARRL DX Contests and DXCC.
Aden and Socotra Island ......................... VS9
Afghanistan ...................................... YA
Alaska .......................................... KL7
Albania .......................................... ZA
Aldabra Islands .................................
Algeria .......................................... FA
Andaman Ids. and Nicobar Ids. ...................
Andorra .......................................... PX
Anglo Egyptian Sudan ............................. ST
Angola .......................................... CR6
Argentina ........................................ LU
Ascension Island ................................ ZD8
Australia (including Tasmania) ................... VK
Austria .......................................... OE
Azores Islands .................................. CT2
Bahama Islands .................................. VP7
Bahrein Island .................................. VU7
Baker Island, Howland Island and Am. Phoenix
Islands ....................................... KB6
Balearic Islands ................................ EA6
Barbados ........................................ VP6
Basutoland ...................................... ZS4
Bechuanaland ....................................
Belgian Congo .................................... OQ
Belgium .......................................... ON
Bermuda Islands ................................. VP9
Bhutan ..........................................
Bolivia .......................................... CP
Bonin Island and Volcano
Islands (e.g., Iwo Jima) ......................
Borneo, British North ........................... VS4
Borneo, Netherlands ............................. PK5
Brazil ........................................... PY
British Honduras ................................ VP1
Brunei .......................................... VS5
Bulgaria ......................................... LZ
Burma ............................................ XZ
Cameroons, French ............................... FE8
Canada ........................................... VE
Canal Zone ...................................... KZ5
Canary Islands .................................. EA8
Cape Verde Islands .............................. CR4
Caroline Islands ................................
Cayman Islands .................................. VP5
Celebes and Molucca Islands ..................... PK6
Ceylon .......................................... VS7
Chagos Islands .................................. VQ8
Channel Islands .................................. GC
Chile ............................................ CE
China ......................................... XU, C
Christmas Island ................................ ZC3
Clipperton Island ...............................
Cocos Island ..................................... TI
Cocos Islands ................................... ZC2
Columbia ......................................... HK
Comoro Islands ..................................
Cook Islands .................................... ZK1
Corsica .........................................
Costa Rica ....................................... TI
Crete ............................................ SV
Cuba .......................................... CM-CO
Cyprus .......................................... ZC4
Czechoslovakia ................................... OK
Denmark .......................................... OZ
Dodecanese Islands (e.g., Rhodes) ............... SV5
Dominican Rebublic ............................... HI
Easter Island ...................................
Ecuador .......................................... HC
Egypt ............................................ SU
Eire (Irish Free State) .......................... EI
England ........................................... G
Eritrea .......................................... I6
Ethiopia ......................................... ET
Faeroes, The ..................................... OY
Falkland Islands ................................ VP8
Fanning Island (Christmas Island) ............... VR3
Fiji Islands .................................... VR2
Finland .......................................... OH
Formosa (Taiwan) ................................
France ............................................ F
French Equatorial Africa ........................ FQ8
French India ..................................... FN
French Indo-China ............................... FI8
French Oceania (e.g., Tahiti) ................... FO8
French West Africa .............................. FF8
Fridtjof Nansen Land (Frans Josef Land) .........
Galapagos Islands ...............................
Gambia .......................................... ZD3
Germany ........................................... D
Gibraltar ....................................... ZB2
Gilbert and Ellis Islands and Ocean Island ...... VR1
Goa (Portuguese India) .......................... CR8
Gold Coast (and British Togoland) ............... ZD4
Greece ........................................... SV
Greenland ........................................ OX
Guadeloupe ...................................... FG8
Guantanamo Bay .................................. NY4
Guatemala ........................................ TG
Guiana, British ................................. VP3
Guiana, Netherlands (Surinam) .................... PZ
Guiana, French, and Inini ....................... FY8
Guinea, Portuguese .............................. CR5
Guinea, Spanish .................................
Haiti ............................................ HH
Hawaiian Islands ................................ KH6
Honduras ......................................... HR
Hong Kong ....................................... VS6
Hungary .......................................... HA
Iceland .......................................... TF
Ifni .............................................
India ............................................ VU
Iran .......................................... EP-EQ
Iraq ............................................. YI
Ireland, Northern ................................ GI
Italy ............................................. I
Jamaica ......................................... VP5
Jan Mayen Island ................................
Japan ............................................. J
Jarvis Island, Palmyra group (Christmas Island) . KP6
Java ............................................. PK
Johnston Island ................................. KJ6
Kenya ........................................... VQ4
Kerguelen Islands ...............................
Korea ...........................................
Kuwait ..........................................
Laccadive Islands ...............................
Leeward Islands ................................. VP2
Liberia .......................................... EL
Libya .......................................... (LI)
Liechtenstein ................................... HE1
Little America .................................. KC4
Luxembourg ....................................... LX
Macau ........................................... CR9
Madagascar ...................................... FB8
Madeira Islands ................................. CT3
Malaya ..................................... VS1, VS2
Maldive Islands .................................
Malta ........................................... ZB1
Manchuria .......................................
Marianas Islands (Guam) ......................... KG6
Marshall Islands ................................
Martinique ...................................... FM8
Mauritius ....................................... VQ8
Mexico ........................................... XE
Midway Island ................................... KM6
Miquelon and St. Pierre Islands ................. FP8
Monaco ..........................................
Mongolia ........................................
Morocco, French .................................. CN
Morocco, Spanish ................................ EA9
Mozambique ...................................... CR7
Nepal ...........................................
Netherlands ...................................... PA
Netherlands West Indies .......................... PJ
New Caledonia ................................... FK8
Newfoundland and Labrador ........................ VO
New Guinea, Netherlands ......................... PK6
New Guinea, Territory of ........................ VK9
New Hebrides ................................ FU8, YJ
New Zealand ...................................... ZL
Nicaragua ........................................ YN
Nigeria ......................................... ZD2
Niue ............................................ ZK2
Norway ........................................... LA
Nyasaland ....................................... ZD6
Oman ............................................
Palau (Pelew) Islands ...........................
Palestine ....................................... ZC6
Panama ........................................... HP
Papua Territory ................................. VK4
Paraguay ......................................... ZP
Peru ............................................. OA
Philippine Islands .............................. KA1
Phoenix Islands (British) .......................
Pitcairn Island ................................. VR6
Poland ........................................... SP
Portugal ......................................... CT
Principe and Sao Tome Islands ...................
Puerto Rico ..................................... KP4
Reunion Island .................................. FR8
Rhodesia, Northern .............................. VQ2
Rhodesia, Southern ............................... ZE
Rio de Oro ......................................
Roumania ......................................... YR
Ryukyu Islands (e.g., Okinawa) ..................
St. Helena ...................................... ZD7
Salvador ......................................... YS
Samoa, American ................................. KS6
Samoa, Western ................................... ZM
Sarawak ......................................... VS5
Sardinia ........................................
Saudi Arabia (Hedjaz and Nejd) ................... HZ
Scotland ......................................... GM
Seychelles ...................................... VQ9
Siam ............................................. HS
Sierra Leone .................................... ZD1
Sikkim ........................................ (AC3)
Solomon Islands ................................. VR4
Somaliland, British ............................. VQ6
Somaliland, French .............................. FL8
Somaliland, Italian .............................
South Georgia ................................... VP8
South Orkney Islands ............................ VP8
South Sandwich Islands .......................... VP8
South Shetland Islands .......................... VP8
Southwest Africa ................................ ZS3
Soviet Union:
European Russian Socialist
Federated Soviet Republic ............. UA1-3-4-6
Asiatic S.F.S.R. ............................ UA9-0
Ukraine ....................................... UB5
White Russian Soviet Socialist Republic ....... UC5
Azerbaijan .................................... UD6
Georgia ....................................... UF6
Armenia ....................................... UG6
Turkoman ...................................... UH8
Uzbek ......................................... UI8
Tadzhik ....................................... UJ8
Kazakh ........................................ UL7
Kirghiz ....................................... UM8
Karelo-Finnish Republic ....................... UN1
Moldavia ...................................... UO5
Lithuania ...................................... UP
Latvia ......................................... UQ
Estonia ........................................ UR
Spain ............................................ EA
Sumatra ......................................... PK4
Svalbard (Spitzbergen) ..........................
Swan Island ..................................... KS4
Swaziland .......................................
Sweden ........................................... SM
Switzerland ...................................... HB
Syria .......................................... (AR)
Tanganyika Territory ............................ VQ3
Tangier Zone ..................................... EK
Tannu Tuva ......................................
Tibet ........................................... AC4
Timor, Portuguese .............................. CR10
Togoland, French ................................ FD8
Tokelau (Union) Islands .........................
Tonga (Friendly) Islands ........................ VR5
Trans-Jordan .................................... ZC1
Trieste .........................................
Trinidad and Tobago ............................. VP4
Tristan da Cunha and Gough Island ............... ZD9
Tunisia ......................................... FT4
Turkey ........................................... TA
Turks and Caicos Islands ........................ VP5
Uganda .......................................... VQ5
Union of South Africa ............................ ZS
United States of America ....................... W, K
Uruguay .......................................... CX
Venezuela ........................................ YV
Virgin Islands .................................. KV4
Wake Island ..................................... KW6
Wales ............................................ GW
Windward Islands ................................ VP2
Wrangel Islands .................................
Yemen ...........................................
Yugoslavia .................................... YT-YU
Zanzibar ........................................ VQ1


Page originally available at Guernsey Amateur Radio Index

The post DX Century Club First post-WWII Countries List appeared first on
IW5EDI Simone - Ham-Radio.



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