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Yes, and it should be "Flooded" Burial Cable, which has a gooey substance designed to prevent waten ingress even if the jacket has pinholes.

That's not true for two reasons: If you look at the expression for System Noise temperature, which defines the Carrier-to-Noise-Ratio available for detection, it is an expression with many additive terms, and Cable loss only affects the denominator of some terms, and thus only materially...

The AT-9 antenna is the same as the old Phase III with regards to cables: you need as many cables as your receivers have inputs, up to 4 max, at which point further expansion is done with multiswitches.

No problem -- I'm using an HR10-250 and two H10's happily with the new AT9 Ka/Ku 5-Sat Antenna.

Power gain is directly proportional to capture area for the same efficiency, and efficiencies are all fairly similar, plus the noise temp goes down slightly as dish size goes up, so there is a (very) small improvement there too. 24" to 30" would be 1.9+ dB, 0.9m to 1.2m would be 2.5+ dB. The...

The move from 0.5 to 0.9 meter would have netted about a 5-6 dB improvement in CNR, roughly 4x what the LNB change would yield. Small antennas have a higher noise temp at the same elevation, giving less advantage to a better LNB, so you should max out antenna size before going to lower temp...

It depends entirely on how adequate your signal is now: if poor, 1.5dB might nudge it up to good; if good then perhaps to very good -- but it probably won't make a poor signal very good.

Yes, early C-band setups (circa 1979) actually brought the 4GHz signal amplified by the LNA indoors, originally through copper hardline pressurized with dry nitrogen, then through foam-filled aluminum hardline. Early Downconverters (often single channel, not Block) weren't weatherproof, so it...

Noise Figure is based a terrestrial ambient temperature reference of 290K, and is defined as how much noise is added by passing thru the amp. So 0.3 dB adds 21 degrees K, 0.6 dB add 43 degrees K. The unknown is the Antenna temperature at your elevation angle above the horizon (the higher, the...

Such signals are not actually below the noise floor per se, they are below the broadband noise floor, i.e. they can't be seen by a wideband receiver or spectrum analyzer which has a wide noise bandwidth. The matching hopping receiver knows where the signal will be, and can look for it a narrow...

Actually, you could get by not knowing the tilt -- if you aim at 101 initially, as instructed, it stays on 101 as you rotate to peak 119, so even if you didn't know the tilt, you would find it readily by sweeping through the whole range. Since you are, in effect scanning vertically thru the...

I had the 3-LNB GainMaster and switched to the AT9 5-sat Ka/Ku. They are similar in size, and both use a 2" mast. The az/el adjustment verniers on the AT9 make it WAY easier to set up. Also the AT9 adjusts the 101-to-119 spacing as a function of location (in 3 zones) which makes for...

Yes, I have two d575's in excellent condition I took out of service this spring when a ran more cables and didn't need them any more.

5/16ths should be about right, 1/4" is a bit small in the holes, and would definitely want washers. Considering the bulk and weight, I'd feel much better with 5/16ths hardware. My AT9 is mounted to steel channels bolted to spacers on a 3-foot dia. tree, with 1/4" hardware with washers under the...

You need as many cables as you have inputs on your receivers, up to 4 max. Beyond 4 receiver inputs you bring in 4 lines from the AT9 and expand further with a multiswitch.

The Military uses quite a few low orbit satellites, less than thousand miles round-trip, vs. 45,200 miles for geostationary satellites like those used by DirecTV. Voip would be fine with low orbit birds.

I stand corrected as to where the text example applies -- but does it not take 1/2 second for the result of a mouse click (where a screen change is produced) to happen, such as when I submit this reply?

Remember when you are typing to an internet form, as I am now, the keystrokes are being uplinked, and the new screen data downlinked to your display. Try typing with a 1/2 second lag in the visual feedback -- it's about as annoying as the delayed sidetone (voice echo) is a satellite phone call...

But just how useful are rumors that require "future technology" to change the speed of light to be realized? And doesn't that need to be pointed out so that you can sift the wheat from the chaff?

No, it's considered one box, so you don't pay a 2nd receiver fee, but you do pay a similar DVR fee for the first DVR -- no additional charge, other than the extra receiver charge, for more than one.

LonghornXP doesn't seem to understand that clever engineering cannot overcome time latency -- it is fundamental in the 44,600 mile round trip to the satellite, and the reason that fiber quickly displaced satellite for telephone use -- voice conversation is very difficult with the 1/4 second...

I've called him in the past on some of his fantasies, but many of the forum denizens love the "inside" yarns more than reality, so the truth gets a poorer reception than wild speculation. NFW anybody running a company would actually allow leakage of future competitive plans.

From the data in Reference Data for Engineers, 8th Edition, I'd estimate to Ka rain fade to be 4.4x that at Ku band. I would also conclude from the other graphical data presented that the loss will exceed 6dB in Ka band about 10% of the time it is raining, so a smaller percentage of total time...

Vonage or other VOIP is usually OK for PPV calls, since they are made at a low baud rate. If you have a PC nearby running Windows you can do the daily calls via PPP-over-serial using the serial jack on the back. I once had two DTV DVR's doing it, and still have one.

My AT9 was marked Made in Taiwan on the box. Workmanship, fit and finish were all excellent.