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Steve Wright
Advanced Class
EI5DD Ham Since 1973

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Other Callsigns
G4GFC (UK Callsign)
EI4ALE (Galway VHF Group Callsign)
EI185RNLI (Special Event Callsign for RNLI OPeration)
EJ185RNLI (Special Event Callsign for Aran Islands RNLI)
EI0TED (Craggy Island Dxpedition Group Callsign)

My Ham Radio Interests
My major interest in radio is home-brew project building and renovation of older radio equipment. I still have my old Codar AT5 transmitter, T28 Receiver, CR70MkII all in perfect working order after much TLC. I recently acquired a KW2000B tranceiver which requires a little attention but will be a treasured addition to my collection of vintage equipment. My most valued piece of test equipment is my B&K 700 valve tester.

I am involved in the Amateur Radio Emergency Network which is busy with local activity for at least 10 months of the year. This is also an opportunity to enjoy portable and mobile operation.

I am a member of the Galway VHF Group. I am involved with an active and innovative group of operators sharing similar interests. Meetings are very enjoyable and always an opportunity to keep up to date with new technology.

QRP operation is another field of radio that holds my interest and a number of projects are currently on the test bench at present. A pity the CW is rusty but a good excuse to bring up the speed.

Portable operation is another facet of the hobby that I enjoy. There is nothing to beat throwing a bit of wire up and working the world. I have great results to date from wire carried aloft by a kite. I intend to buy a few more kites and suspend a delta loop for 80 metres some time.

Having followed a lot of the work done by Nathan Cohen, fractal antennas really do appeal to my imagination. I hope to test a few designs in the near future.

My Base station
Icom 756
Behringer Xenyx 502 Microphone pre-amp/equaliser
Yaesu FT897D
Ascom 550
TigertronicsDigital Modes Interface

My Portable Station
Icom 7200
Fibreglass Mast+wire antennas
Kite supported dipole or slopers

My Back-Pack Station
Yaesu FT817D
LDG Auto tuner
MP-1 portable vertical antenna 80 - 10m
Selction of Dipoles
Portable centre Loaded Vertical

My Mobile Station
Icom 7200
Pro Am Whips for HF bands
Yaesu FT 8900 Quadbander

Other Interests
Classical Music
Creative writing

Galway VHF Group
QRP Amateur Radio Club International
European PSK Club
Radio Society of Great Britain
American Radio Relay League
Irish Radio Transmitters Society

The Top Band Experiment as of March 2010

From EI5DD

3/15/2010 7:34:34 AM (0 comments) Add a commentAdd Comment

The Top Band net generally meets on or around 1966 KHz at 10 pm. To date the following results have been obtained.

Ei8DRB/M located about 15 miles away generally comes in at strength 9. EI3IS also 15 miles away strength 9. EI3IX 40 miles away strength 9. EI4CN 72 miles away strength 9. EI2IU 75 miles away strength 9. EI2GE 45 miles away strength 9. All QSO's logged around 10 - 11 pm at night. Conditions have been fairly consistent to date with occasional burst of static noise probably due to a distant thunderstorm.

EI3IS is generally a consistent 9 during the day and EI7FAB a strength 1 during the day but fully readable from 40 miles distant.

All above results obtained on an end loaded inverted L tuned at the base with the loading coil situated 3 ft from the top end. In times of high local electrical noise, an ANC-4 noise filter is inserted. This piece of equipment is an invaluable addition to the shack.

Previous results from mobile operation have resulted in a 2way QSO with the UK at about 9 pm with a strength 9 report in both directions. The antenna used was a pro-am whip for top band. Results from tests in mountainous terrain in Connemara have given consistently good results via ground wave throughout the entire area.

A good resonant vertical antenna as utilised by EI2IU gives consistently good results. Perhaps this type of antenna will be used for some portable activity in the future. The use of a kite antenna would not be out of the question for future tests. Results to date are encouraging especially as the purpose of the experiment was to link all members of the Galway VHF Group together on the one frequency. There has been no difficulty linking stations on the entirety of County Galway to date which in itself is what we set out to achieve in the first place.

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