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EI7GMB
Arthur Mejsak
Standard Class
EI7GMB Ham Since 1999
Ireland

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Information

Other Callsigns
SQ4HWI

My Ham Radio Interests
Please note address change as follow on http://www.qrz.com/db/EI7GMB


Not very active at the moment due to lack of an HF antenna at base QTH but be prepared to catch me up on 4m band (70mhz) portable!

For any missing/unanswered cards please contact me here: EI7GMB at yahoo dot com

I am an eQSL user but have no plans for the LotW yet and no LotW entries are entered/replied.

Equipment
Base:

Nothing at the moment

Mobile:

Kenwood TM-D700
Ascom SE550

Portable:

RT320
RT351

And plenty of a radio related junk in the box awaiting its sunny day.

Other Interests
Music, books, Linux, Raspberry PI, homebrew electronics, PMR conversions.

Clubs
Some good people at IRTS http://www.irts.ie

A brilliant VHF enthusiast:

http://ei4dib.blogspot.com

4m band "range" experiment.

From EI7GMB

5/15/2011 5:12:03 AM (0 comments) Add a commentAdd Comment


Just a short entry. It was so unexpected experiment. I mounted 1/4 L whip for 70mhz on my vehicle to see if i might hear anything sitting in my car at parking lot nearby my workplace. So I have heard Michael EI3GYB, Tom EI2GP, John EI1EM and Steve EI5DD. And the distances were:

Michael 55-60 kilometers - according to Grid Squares. FM1000
John 8,6km - APRS FM1000
Tom 27-28km - GS FM1000
Steve 6,5km - APRS Ascom SE550


Nearly 60km on 25 watts with Michael on FM - not bad. I was running Ascom SE550 with 1/4L Moonraker whip (so so match with SWR around 1:1.4, quite chimeric antenna) out of 12V lead acid "emergency power cube" battery. John and Tom had an ignition noise coming over on their carrier - seem to be a specific "feature" of FM1000, unless it might require different approach with power leads connection. Despite the smallest distance Steve was not able to receive me at times - I know myself what it was - a specific "feature" of Ascom what I experienced myself - very prone to QRM from LCD and plasma panels (also switching mobile chargers) Ascom is decreasing its sensitivity automagicaly making incoming signals buried under electric hash noise. In my particular case it was a LCD panel which made signals nearly unreadable unless i switched it off.

I can't wait till I get a keypad for my FM1000 what i wanna convert for 4m band and make it my mobile rig, cause moving Ascom between home QTH and mobile is a bit annoying. Not to mention that "flying" rig gathers more scratches and dents... aww..


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