Topband: Idaho on 160 m

2015-02-21 Thread Tod Olson
If you are a serious contest op you should not be reading this ‹ get back in the chair and work some more stations. I have been asked to operate 160m this evening by several Caribbean stations. Since they are all multi¹s they may have time to read this. I will make an effort to be on starting at

Re: Topband: Idaho on 160 m --- DRAT !!

2015-02-21 Thread Tod Olson
* Dreadful error MST is - 7 hours from UTC, not -6 hours MDT has caused a mental problem I guess Anyway 0500 UTC is the correct time for 10 PM Mountain Standard Time. Tod, K0TO On 2/21/15, 4:33 PM, Tod Olson t...@k0to.us wrote: I will make an effort to be on starting at 10 PM MST

Re: Topband: Not so good in the contest last night

2014-02-22 Thread Tod Olson
I may have worked only 10 SP last night. When it is a struggle to work WY,UT,MT and WA from ID you know something is not right. I did manage one NY, IN, OH, IA, and ND but could not even hear the ID station that worked the MT station just before me. I complement the NY station [ note I am not

Re: Topband: End of a bias tee adventure?

2014-01-24 Thread Tod Olson
Is no one going to suggest that a ³gyrator² should be put into the circuit instead of an inductor? There was a W3 who had some of the diodes for replacements. They are surface mount and small! Obviously, one wants them to have a very low conduction threshold voltage. I suspect Tom can suggest

Topband: Lazy question concerning toroidal inductors

2012-08-06 Thread Tod Olson
I am sure [or at least I hope] I could sort through the information available in books and on the web for the answer to this question, but maybe someone reading this reflector can give me an 'instant' answer [preferably correct]. I intend to use a powdered iron core toroid as the form for an

Re: Topband: opinion

2012-08-03 Thread Tod Olson
Is this a current Topband topic? Did I miss something. I thought folks were talking about antennas and some new and unusual ideas with respect to them. Tod, K0TO Even today we have the impact in our economic survival due to the doxology of AlGore on climate change or man-made climate change.

Re: Topband: Home Depot LED bulb interference.

2012-04-27 Thread Tod Olson
Herb: Is this a typo? Here in the VI when the power company increased the rates to over $40 per KWH ŠŠŠ. I wonder if you meant $0.40/KWH. At $40/KWH I would guess you could not afford to run your equipment for an entire contest! 73, Tod, KØTO ___

Re: Topband: Home Depot LED bulb interference.

2012-04-05 Thread Tod Olson
I wonder if the difference is the dimmable feature? Tod, K0TO On 4/5/12 10:56 AM, Jim F. j_fit...@yahoo.com wrote: Wayne.. Good info...Thanks Hmmm.. the heatsink base of this 40 watt bulb also gets too hot to touch and feels like more than 40 watts also. --- On Thu, 4/5/12, Wayne

Re: Topband: EIRP Measurement

2012-02-21 Thread Tod Olson
Joe, et. al I am quite certain that there will need to be different sense antennas for 160m and 630m. I would not be surprised if we did not also need bandpass filters for each of the bands as well. As I recall there were several circuits in QST using a single analog Devices unit to measure RF

Topband: 600 Meters live

2012-02-21 Thread Tod Olson
Here is a chance to see, if not hear, signals on 600 meters. http://w5jgv.com/Spectrum/index.htm There are a lot of guys who participated in the experimental effort - check out http://www.500kc.com/USA_600_M_Station_ID.htm - - - probably some of those guys we have worked on TopBand. Guess

Re: Topband: A rare Boring Report

2012-02-17 Thread Tod Olson
I have operated a beacon on 186 kHz - - back in about 1999. I used a HyTower for the vertical element and then a loading coil to get it to match. Wait until you see what it takes to build a reasonable Q loading coil at 630 meters !!! Start saving 5 gallon plastic pails now and read a bit about

Re: Topband: Proper Decorum On The Gentleman's Band...

2012-02-10 Thread Tod Olson
A trivial point in this discussion, but of some consequence in assessment of data, the average is almost always NOT the 50% point of a population. The Median is the midpoint -- that is 50% of the population is above and 50% below the Median. The Average [or Mean] for a population is very