LF Engineering H-900 Gain Probe Antenna

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Has anyone here had any experience with the LF Engineering H-900 Gain Probe Antenna?

http://www.grove-ent.com/h900.html

I have a Alpha Delta DX Ultra that I could put up but I really need wait until I get my towers up so it can be installed correctly/optimally. The LF Engineering H-900 looks like something I could put up on the top of my temporary 20 ft mast pretty easily. Does it work well as advertised?

It will be used for SW utilities, specifically US military stuff. SW broadcast isn't important for me.

Any comments or advice would be greatly appreciated.

DH
 
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N_Jay

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Declared_Hostile said:
Has anyone here had any experience with the LF Engineering H-900 Gain Probe Antenna?

http://www.grove-ent.com/h900.html

I have a Alpha Delta DX Ultra that I could put up but I really need wait until I get my towers up so it can be installed correctly/optimally. The LF Engineering H-900 looks like something I could put up on the top of my temporary 20 ft mast pretty easily. Does it work well as advertised?

It will be used for SW utilities, specifically US military stuff. SW broadcast isn't important for me.

Any comments or advice would be greatly appreciated.

DH

The spects looka littel "optimistic" to me.

What was that old saying?
"If it sounds too good to be true, it probabaly is!"
 

Halfpint

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I have a H-800 `SkyMatch' that I bought for use as a `portable' antenna for those times I wanted to quickly put up an antenna someplace. Has worked quite well for me. Well... I decided that I'd pick up another antenna that was nice and small, and could almost be `invisible' when one runs into `covenants' or just doesn't want to go through the hassles of `stringing up' an antenna which might be coming down fairly soon, and went ahead and bought the H-900. I haven't yet figured out just where I want to put it but I've been playing around with it hanging off of a curtain rod looking out a window and it's been, performance wise, quite similar to the H-800 in the same situation. My *main beef* with the H-900 is that the power for the `system' depends upon either a little 100m 12VDC `Wall Wart' or a powercord that one has to make up themselves to hook up to a different 12VDC source unlike the H-800 which can use either a `Wall Wart', a home made power cord and 12VDC source, *or* {Drum Roll Please!} *a pair of 9V batteries* inside the box. Another `beef', though not quite as `bad' as the first one, is that the "on/off" switch on the H-900 *does not* shut of the antenna! It *only* shuts off an `extra' amp in the box. To *completely* shut off the H-900 one has to either unplug the `wall wart' or have it plugged into a switched outlet strip wither of which is a PITA when wants to turn off the antenna during long times of disuse. *If* one isn't trying to get every little bit of `range' and can do without the `extra' 10MHz at the `top end' that the H-900 has over the H-800 *and* is in a situation where a bunch of extra `Dynamic Range', though I really can't tell so far if it is really all that much over the H-800, is really necessary I'd go with the H-800 and save a few bucks.

Since I *am* getting to do a *drastic* remodeling, we are getting ready to sell our farm here in Colorado and move to a new place up in Wyoming around the end of this coming summer, of my `shack'/`listening post' I expect that I'll probably be able to put the H-900's `wall wart' on a switched outlet strip with some other things that *might* `follow' a similar off/on `pattern' and be able to `live' with not being able to shut it off via it's own switch. (I dimly remember that one *used* to be able to find outlet strips that provided for individually switched outlets at one time. I haven't seen any recently, though. I *also* remember that one *used* to be able to find outlet strips that one could plug something into a `master' outlet and then when whatever was plugged into said outlet was turned on things plugged into the other outlets would come on. Again, I haven't seen any of those for a while now. The last one I saw was the one I *used* to use on one of my old computers. Allowed me to have the monitor, printer, modem, and some other stuff turn on/off by just turning on the main `box'. *That* would be probably the best for what I'd like to be able to do.)

I am hoping that maybe in the next week I'll be able to get a bit of help climbing around on our roof to put up the H-900 and I'll be able to do a better comparison between it and my old H-800. Sorry that I really can't quite do that right now. I *can* say that if the old H-800 is any comparison, or vice-a-versa, the H-900 should be a pretty good way to have an almost invisible, covenant-wise, antenna for *most* HF listening.
 
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