Could you describe how your transmitter-ground-antenna is setup?
When are you on? Also, do you live at the feed store?
When I see that (7.195), I think of where I usually hang out on HF. Haven't been active much in the last month or so, haven't been in the groove. 7.195, coincidence or no....
OK. I will tune around on or near that frequency. Qustion two: Do u live at the feed store or across the street at Sonic?
I realized the coincidence was too much. So I figured this might have been directed at me. I am actually up the street from the Sonic/feed store. My facilities are near the Green Frog, so I am often there!. Google Earth is not quite current on drive by.
"Could you describe how your transmitter-ground-antenna is setup?"
I'm going to assume this one is for me.
The transmitter simply sits on top of an 8 ft pole surrounded mostly by farm land. For "extended" coverage there are 8 semi-buried radials and one centrally located ground rod. Oddly enough the loss or addition of radials or the ground itself doesn't seem to have much of an impact on signal strength. I'm beginning to wonder if maybe the metal pole is acting like some sort of ground coupler or shunt fed antenna.
3-6 Miles would cover my town of Deltaville. Surly nothing to cry about and I'd be happy with that. Must find a way to have a stealth antenna and still have that sort of range. I had a few folks say they'd listen to me even on AM if only they could hear me further than say 1/4-1.1 miles away.
Below is a chart showing the groundwave field intensities produced for the conditions shown there. The d-c input power to the Class E final r-f amplifier is 100 mW.
I set the frequency and will begin testing with it. Nice looking device. Hopefully, I will get time to set it up for the external coil and mount it in place of the TH...
Craig said: " I prepped it for install, only to find my antenna analyzer wouldn't go down low enough in frequency."
John said: "Use your rig's S-Meter, adjust the sensitivity of the receiver so it can just detect the signal from the transmitter and adjust your taps until you find the one that peaks the signal on the receiver."
"... find the one that peaks the signal on the receiver."
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Just a heads up -- such signal peaks also will occur for systems that exceed the limits of Part 15 AM, and which might result in an FCC citation (NOUO).
First, thanks Rich for the concern! From what I am seeing, this thing is pretty anemic on power from what I am seeing in the shack while testing.
Initial thoughts, it sounds pretty good. Been playing with the supplied antenna, and even tuning a couple of external antennas, that are probably not compliant, but did not yield outstanding results. I am back on the supplied antenna at present.
Tomorrow, depending weather, my temperment, etc. I may attempt an install in place of the TH. But, as a priority, I have to work on my office A/C. It quit today...only two weeks old. I am not impressed when I sweat at my desk.
Did I mention this thing sounds really good when in range?
It Hz , you know?
I did go up on the roof with my old yaesu vx-2 (I forgot I had it). The VX-2 is a multi band pocket sized receiver/transceiver that picks up most anything, just not very well. But it was perfect for this task.
I removed the antenna and peaked the antenna settings a bit more. Mostly, I got rid of the distortion that showed up after my coil install. I am sure it was from the mismatch that was causing RF to go back into the transmitter. That made things sound pretty good again on the TH 5.
Distance increase? Not sure, but it did sound better at the house in the truck. But it could be wx/atmospheric conditions.
I must now focus on A/C issues as it is already heating up.
And yes, it Hertz. You might even say it KillooHertz... Comedians probably out of work somewhere!
I finally put up my omni directional antenna for the FM BCB. I use it to seek out Part 15'ers and to monitor my yard caster.