Hi Dave. If for no other reason other than to see a commercial antenna that was made a million years ago for 10m/15m check out the design of the HyGain DB1015A It was my first yagi as a novice and I
It may very well come down to a mechanical solution. One idea that came to mind, because the final antenna will be a circular open WG,just would be to cut the teflon to fit over the WG opening with a
Gary appreciate the suggestion. I have not decided on a material yet. I have been acquiring a number of different plastics, all uV stable that I plan to test in the downstairs dungeon RF lab. I will
Yup you brought up a point that was mentioned to me about a week ago by an active uW'er. I can pretty easily test the effects of the plastic for it's IL and any changes in RL but changing the pattern
One other idea came to mind which I acted on and that was to buy on e-bay an inexpensive LNB complete with round plastic cap delivered for around $6. I should be getting the dish and feed from direct
Did find this interesting. Need to find out if it is available in the US and if it is affordable. The surface prep also seems not to be as scary as a lot of other techniques: https://www.youtube.com/
I do not have any experience with coax directly on my roof but I would still be concerned about possible side effects of extreme temperatures. Let's say you live some place where the air temp can rea
I am getting ready to install my 1st Yaesu rotor on a small 50' tower that will be used for uW work. I have looked over the manual but do not see anything about calibrating the rotor AFTER it has bee
Thanks Ed. I can do that. I was just expecting with all the adjustment pots on the back of the controller there was a way to calibrate the unit electrically. Oh, TU also John....uW = Micro-Wave. 73 G
Also forgot to mention I do not climb. I made this universal tower fold over to the ground and while I could raise and lower it 4-5 times to zero it in I would rather make any fine tuning down in the
Thank you Jim and all. 73 Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light travels faster than sound.... This is why some people appear bright until you hear them speak. On 8/5/2020 3:57 PM, Jim
Update.....so for me this technique is not working. Zero'ed in on a known station to the NW, noted the dial was off. I pulled off the dial indicator and stuck it on his correct heading. All seemed fi
FS: I have some high-quality connectors in their sealed plastic bags & boxes that I thought some TT folks could use. TU for allowing me to post this OT. 1. Times, Female-N Connector for LMR-900 coax
OP did not specify the feed point height but I have used RG-142 in similar situations to get me from the matched feedpoint down to ground level. Then transition to something like LMR400 (or a clone)
I concur.....AND, the sheet metal screw will come loose and corrode the contact between the wire and the aluminum. Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light travels faster than sound....
Although my antenna is a older XM-240 not a 40-CD2 Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light travels faster than sound.... This is why some people appear bright until you hear them speak.
In case you ever wonder what one looks like after taking a hit of lightning........ https://w8bya.com/Gallery/HAM_RADIO/MISC/images/IMG_0274a.jpg Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light
If it will be of any help I seem to remember measuring all 4 of mine and got an average value of ~13.8 uH. Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light travels faster than sound.... This is
Oh and look, even has 6m & 2m beams above it <g> Gedas, W8BYA EN70JT Gallery at http://w8bya.com Light travels faster than sound.... This is why some people appear bright until you hear them speak. h
Solvents like those mentioned will only affect Polyurethane _before_ it cures. Acetone is esp effective when it is still wet. Once it cures it resists almost all common solvents. A quick search on li