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Actually I'm really quite... Because it means I've improved my station performance!! - And without RADIALS!!!!!!!! - I'm just not inclined to throw in the towel on the P500 quite that easily... I have to at least give it a good fighting chance. Maybe Maalox after it beats the P500 for a...

Hey Dave, thanks for the recognition. :thumbup1: - Just to make certain that I'm not somehow creating the winning combination for the SGM to beat my Hy-Gain Penetrator500, I'm going to disassemble the P500 and clean every junction of any aluminium oxide build-up, clean the matching network (oh...

Looks good, Homer. Did you go with a full .64 or stay with .625? How's it comparing to your Vector home-built?

As far as the testing distance, it depends what you're testing for. If you tend to talk 50-100 miles then that's where the test should be focused. If you mostly talk around town 2-15 miles then closer results are more important. I like to test at all distances possible, but I agree, the...

Marconi, I'd like to see you fill your worksheet with both tips at equal elevation, then remove the AP all together and double-check the SGM with the same stations to see if there was any change in signal strength. I wonder if one is using the other, even though separated by 35', as either a...

OK, well, having your antenna ~50' above ground is better than most! Speaking of coax, I got lucky yesterday and grabbed 150' of this new for $60!! I wish he wanted to sell more! I just went back and re-read the specs on that ecoflex and I'm seriously impressed! I wish we could get that over...

I agree about the beauty of the SGM being in it's balanced design. As far as what Masterchief told them, perhaps either the person at Avanti didn't really know what was going on or perhaps it works even better than they anticipated...? I still have a hard time with the idea of those reverse...

OK, but according to Masterchief's post, 'the dude' from Avanti claimed the bottom ¼ wave of the Vector style antenna, that "Ice cream cone" thingy, doesn't radiate, which I would expect since the currents are of a canceling nature in the base ¼ wave, thus elevating the upper active ½ wave an...

Oh MY, so the SGM was actually mounted 5' lower above ground than the Vector. Makes sense why they would be neck-n-neck when I would expect the SGM to outperform the Vector, IF* that explanation from Avanti is accurate. - If so, the Vector is an efficiently fed 1/2 wave radiator and the SGM is...

Marconi, I've been tearing my hair out trying to understand why the SGM was so consistently down from the AP in your tests. ...then I went back and re-read your chart. I dunno why, maybe I was expecting to see you list the AP on the left, or 1st, since that was the older of your two...

GOOD TO KNOW~! Have you guys seen this post from a couple years ago? A fairly efficiently matched 1/2 wave with such an elevated mount should provide gain over a 3/8 wave (amount of a 5/8 left active) especially when considering it has a built-in 9' mast. Shock, I wonder if you would...

Terrific, and as long as you insure against anything near or beneath the SGM, or even uninsulated metal guy wire, you should have a fair test. I should add here that I have the SGM installed with the nearest set of metal guy wires about 7' below it and I will feel better when it has...

Wow, that's quite a large difference! How high were the two antennas mounted above ground, and is there anything such as a TV antenna or large tree in the near field? What coax type have you?

- I first erected the SGM on the 2nd mast, replacing the IMAX, 18' from the P500. It was evidently interacting with the P500 much more than did the IMAX. This last test was done with all other masts / antennas down, and the base of the SGM was at 40' above ground, as was the base of the P500...

OK, well thank you for asking about the gamma. I hadn't previously noticed that it isn't there with the antenna. I wonder how much they're going to hit me for one...?? Maybe I'll just ¼ wave coax transformer feed it. Norm, I apologize but I can't help you with this one! :glare:

And I'm so pleased with mine (SGM) that I stood outside and stared at it for 20 minutes early this morning, visualizing it 25' higher. :tt1:

OK, I decided to use mine instead of Phil's new one, so it's now installed on the P500 mast/coax/height and I'm seeing +5dB on receive, about +2dB on TX. I don't understand why it doesn't seem to be reciprocal, RX to TX, perhaps it's a result of the internal smashed coax, but I am happy with...