In the mean time cut your power back.  You will have a lot less RFI and will work nearly all the same stations at 30 watts as with 100.

Use the snap on toroids on the speaker cable close the computer and close ot the speaker.

You may need to re-orient your antenna, or move it further from the house.  

Do you have a balun in your antenna feedline?  If not, your feedline may be radiating.   You can do a cheap and dirty choke by taking six turns of the coax near the feed point with about 6 - 8 inch diameter (about the size of a coffee can) and tape together.  Alernatively you can purchase either a 1:1 balun or a Line Isolator and put that in your feed line.

Be sure that your rig and antenna tuner are grounded together.

This is all par for the course.  Every station, rig and antenna setup has their quirks.

73, bill.

Don't forget to check the Satellite forum on the board!

And use the search function at upper right to search the elmers forum for related posts.

good luck, bill

Congratulations! As much thought as we put into hardware, this hobby is really about people!

Bill.

The TI-30X-IIS is a good basic scientific/engineering calculator.  It is around $15 at any any office supply store or discount retailer.

It is the calculator allowed for taking the Professional Engineering exam.   Just enough power to do any typical electrical calculations, but no complicated memories.

It has a built in battery and solar charger.

I used it last semester for my AC/DC circuits class last semester.

73,  Bill

Better response (fidelity), larger size.  

Sounds like you can't really move anyplace practical.   How about switching to a stealthier wire antenna outside,  move all equipment not actually in use to one of the locations for storage and stay on the headphones.

Good luck!

Bill

I'm familiar with MMO from working on aircraft reciprocating engines.   MMO is primarily a 20 Weight oil with oil of wintergreen additive, that gives it that pleasant smell.  Oil of wintergreen helps to dissolve corrosion products, among other qualities.

Overall it is a versatile product.

Bill

Just take a single piece of wire the same length as the dipole and stake it to the ground directly under the dipole.

The feedline coax is not considered to be a counterpoise for a dipole.  

Let us know how it works!

73, bill

Bruce, as far as timing goes, the big new radio announcements get made at Dayton, back in May.  The next most likely time would be November/late October in time for Xmas.

I don't think you are going to see any radio buy be obsolete and unsuitable for many years.   10 - 15 years is a pretty typical lifespan for modern electronics from a reliability standpoint before you start needing repairs.

As far as 'the next big thing" I think we will see digital voice over on HF over the next five years, but its not here yet.

Jump in the water's fine!  Don't put of getting on the air for what-if features not yet offered.  

Bill

I think it means his big log periodic antenna is putting out a signal so strong it is bending the pole it is mounted on.

Bill  (God save us all)

Thats:  Quadrifilar Helical Antenna

I worked on a project several years ago for military vehicle applications and we concluded that the Optima batteries didn't offer any special advantages over conventional plate AGM batteries, and certainly didn't justify their premium price.

Bill

Boeshield is intended to be use inside of airplane structures, like inside the wing and fuselage to protect from corrosion across the panels and at rivet joints.

Boeing wanted a thicker compound that wouldn't run out and evaporate like other products such as Corrosion-X and T-50.

Still, none of these compounds are meant to be used on the exterior where they would be exposed to weather, and generally they are reapplied every 2 - 3 years.

The ultimate protection for exposed aluminum is the same as that for aircraft aluminum skins:  AlumaPrep to clean the surface, Alodine Chromium conversion coating (you could stop at this point, since this provides at least 4,000 hours of exposed protection to salt water spray) or continue with either a primer and top coat or just an epoxy top coat.

73, Bill

Page 22 of your analyzer manual has the procedure for measuring the impedance of a cable.  After that you will know the impedance, velocity factor, and you already have a very conservative power limit.  What more do you need to know about the cable?  The formal classification is really unimportant, you can use it for any appropriate application.

Interesting question and exercise.

73, Bill

The name for the type device you want is a "Bias - T"

They are used in all sorts of applications such as for remote antenna switching, antenna mounted receiver preamp power, etc...

Bill