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Alan The reason for the tuner is mostly to cope with different installations. The feedpoint may be a high voltage point on the antenna, meaning it sees everything close by. This really needs to he in

An alternative for NVIS might be a tri-folded dipole with a reflector wire (or wires) on the ground. The spacing between driven element and ground wire(s) can be adjusted so as to match 50 ohms. I had

Higher isn't always better. On 40 through 80 meters, relatively low antennas designed to have a high angle of radiation are useful for local and regional coverage, using a propagation mode called NVIS

For antenna in general the radiating portion is beat further form the shack as possible for RFI reasons (if in the mic and RF from stuff int he house). However at lower power (qrp) there is a more

Yesterday I installed my EFHW 40m-15m Mini Tuner in the shack close to my window. The distance from my window to the Mini Tuner is about 30 inches. The tuner is mounted so that I can easily tune it

The receiver is identical to the one use in the 1W transceiver. I have several of those and they are very good. The biggest issue is its a very tight build and great care is needed to insure wall the

Hello homebrewers, I am building a universal receiver kit from partsandkits.com for the 40m band. I followed the sequence in your Chuck's excellent video series - started from the audio amp and up

Sincere thanks to all for both the technical advice AND the wit! Sad to say that the battery is dead.. ..long live the [new] battery. -- William, K6WHP "Cheer up, things could get worse..so I cheered

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I've worked with UPS batteries for years professionally. Short and sweet. From your description it is dead. Don't waste any more time on it. It's not coming back. Randy AB9GO.

Hi, I haven't read quite all of the other replies. I have worked with a lot of lead-acid batteries over a lot of years and I even have the lab notes. If you have access to the cells through a water

Can you remove some electrolyte, replce with distilled eater and do desulphation process. Shold restore your bteery in around three days. Ifinternal treeing ( shorting between plates) is there perhaps

A couple of suggestions from my experience. Check the water level. You can purchase a battery revitalize liquid that might help. I found it at an automotive parts center. I had a battery, after I

If it were my battery I'd be replacing it. I don't have a lot of patience with trying to bring batteries back to life. That said, if said battery belongs to my employer I'll do what I can to help it.

Sorry for apparent brevity, but I'll try to provide the background picture, If short of time fast forward to he final paragraph? (Coming from a marine environment perspective, Assuming conventional

I used a deep cycle battery for a couple of years that my son was able to get for me from where he worked at the time ( Batteries Plus ) that no longer had the oomph to start a car, but held a charged

"k6whp" <k6whp@...> writes: A 12V battery has 6 cells with a nominal float voltage of 2.3V/cell on float, for 13.8V. It will soonish draw very little current if maintained at 13.8V, and then

Search online for coupon codes for Advance Auto (worth $20 - $50 bux). Buy battery online and choose to pick it up at your local store. Use dead battery as "core" trade in. Best price so far in my

..think we're talking elephant graveyard here, right? Time to see what a trade-in gets me at O'Reilly. -- William, K6WHP "Cheer up, things could get worse..so I cheered up and, sure enough, things got

I'm not a real authority on lead acid batteries, ....but if you put 6 amps into one for three days continuous, ...I'd? be on the front pew in church in the morning. Don?? N5CID