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433 lines
22 KiB
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The Scroungers Guide to Satellite TV
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By Gary Bourgois
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Copyright 1992, 1993, 1994, The Birdwatcher's Report
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One of the most common misconceptions is that satellite TV is a rich
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person's hobby. Nothing is further from the truth. While it IS possible to
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spend upwards of $4,000 for an installed system with all the carillons and
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calliopes, it is also possible to set up and install a very nice near state
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of the art system for UNDER $500 that will provide perfect reception of all
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domestic satellites. Such a low cost setup will give countless hours of
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enjoyment, exploration and entertainment.
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Just how cheaply can it be done? Well, my first system cost a total of $40.
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Some of my friends say I was just lucky, but LUCK is what you MAKE it. I
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know several other people who have put together their systems for under
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$100. Granted for this low cost, you don't get a fully automated system, but
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we scroungers don't mind turning a few extra knobs and tweaking an extra
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button or two to peak up the reception on our favorite audio or video
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service.
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This scroungers guide will give you some pointers and get you off in the
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right direction towards setting up your own low cost satellite installation.
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If you are successful, and I think you will be, I'd like you to write me and
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let me know what components you got and how they work. One thing for sure.
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Once you start pulling stuff from the sky, you will never be able to go back
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to the limited offerings of over the air and cable TV and radio.
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I highly recommend reading the FAQ list (Send me EMAIL if you can't find it)
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for a full discussion of terms and components of a home satellite system.
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There are two approaches we will discuss. 1) Obtaining a complete system
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and 2) Building your system from Mix and Match components. There are
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advantages to both approaches, and the method you go with will be determined
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in part by your own fortunes and creativity.
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We are obviously talking about USED equipment here. That is the secret to
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doing it on the cheap. With the constant improvement in all areas of
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electronic technology, older satellite equipment is readily available, and
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much of it at giveaway prices. Indeed, it is very easy to obtain
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first-generation equipment for free, as "nobody" wants this old stuff. Of
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course, "nobodies" like you and me will gladly snarf up this old stuff, in
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much the same way a new shortwave listener will grab and enjoy reception
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from an old vacuum tube communications receiver. No, don't worry, since the
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home satellite industry is only about 10 years old, you aren't going to have
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something with 6AQ5's glowing on your shelf.
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Let's look at the individual components, with the idea of the Mix 'n Match
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system. While you might luck out and be able to walk home with a complete
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system, understanding all the individual components will come in handy when
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you begin to upgrade your system. Compatibility of components is important,
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and depending on the age of what you find, you will want to make sure it will
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all play together.
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THE DISH
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The dish itself is perhaps the single hardest component to acquire cheaply.
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However, they ARE out there. Here are some pointers: You will want at least
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a 10 foot dish. You will probably find a few 6 footers in the cheap/freebie
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market. Grab them for experimentation, but your FIRST system should be a 10
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footer or better. Now where to look? I got my 10 footer from a satellite
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dealer who had it laying out behind his shop. It was a mess. He had taken
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it in as salvage when he replaced it with a new system. His customer's dish
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was destroyed by a windstorm, and insurance covered the replacement. The old
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one was so mangled the insurance company did not want it. But *I* did, and I
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managed to walk off with it at no charge. After a lot of bending and using
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wire to sew the torn panels back together, and using a home made cardboard
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guide to maintain the parabolic curve, I had a reasonable facsimile of a
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satellite dish, complete with a rusty but serviceable polar mount.
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So the first places you want to hit are the satellite dealers. Not the ones
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with big showrooms that only want to sell the high dollar systems, but the
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one man shops. Make friends with a technician who installs systems if you
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can. A person like this will have access to TONS of old satellite equipment,
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most of which is just taking up space, and can be had for a song. You would
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be amazed at the amount of older technology stuff laying about.
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Other places to look for used dishes include abandoned commercial property.
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Many businesses made use of satellite equipment for corporate communications
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and training. While the receiving equipment may be gone, quite often the old
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dishes remain, often in disrepair, but serviceable. If you find one, find out
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who owns the building, and offer to remove the dish at no charge. You might
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have to pay something, but you should be able to bargain here. In no case
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should you pay more than $100 for a used dish unless it is in MARVELOUS and
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PRISTINE shape, or is a 16 footer or larger... You can get a brand new dish
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in the $300 to $400 price range, so knowing this, you should be able to
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haggle.
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The dish is the one component you will want to obtain locally. Or at least
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within driving distance. You will want to inspect a used dish yourself for
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condition, and you also don't want to pay to have a used dish dismantled and
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shipped to you. Once you have your dish (It took me quite a long time to
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find mine, but it was worth it) and get it back into shape, you are ready to
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assemble the rest of the components.
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One thing to be aware of: Some older mesh type dishes many not work on the
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KU band because the holes in the mesh are too large. Do not let this deter
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you from getting an older cheap dish though. You CAN remesh it with KU mesh
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if and when you add KU band.
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MOUNT, ACTUATOR, LNB
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There are two locations of equipment in a satellite installation, the OUTSIDE
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components at the dish, and the components inside your house. There is a
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network of wires that connects it all together. Let us next consider the
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rest of the outside components, and how we scrounge those.
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The Polar Mount is the hardware that keeps the dish oriented properly to
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track the satellites in their equatorial geostationary orbit. While these
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satellites remain at fixed points overhead, there are more than 20 of them,
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and you must move the dish in order to view them. This is accomplished by
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the mount and actuator motor. The mount is installed on a 3 inch pipe, which
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is sunk in concrete. The concrete was the only expense of my first system,
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hence the $40 cost. All you need to do here is dig a hole, stick the pole
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in the ground, make sure it is plumb vertical, and let the crete harden. The
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dish/mount then goes on the pipe, and you install the actuator. Here when
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mixing and matching, you must make sure of two things. Operating voltage,
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and how the actuator communicates its position to the control unit in your
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home. Older technology systems use a simple 10 turn potentiometer to
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accomplish this task. If you are purchasing a scroungers special, this is
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the type of system you will most likely obtain. They work fine. The pots
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are either 10K or 1K, so make sure you get one that is compatible with the
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position controller you will be using. Motor voltages vary from 24 to 50
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volts. Matching is not totally critical here, but you should try to get as
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close as possible. My first actuator had a 24 volt motor, and the controller
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put out 45 volts. The result was a really FAST positioner. That arm
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eventually died, not the motor but the internal nut which is made of plastic.
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People like me who do a LOT of sky scanning will always want a spare actuator
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arm on hand. Used arms can be had for between $20 and $50, especially the
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older ones, since they are not compatible with the newer systems. Most good
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satellite dealers have a stock of these older arms, and you should be able to
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get one very reasonably, and perhaps the position controller as well.
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THE FEEDHORN ASSEMBLY
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The feedhorn is located at the focal point of the parabolic dish, and acts as
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a "tuned funnel" which pipes the concentrated (but still minuscule) raw
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signals to the LNA or LNB. Inside the feed there is a small DC motor and a
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little flippy gizmo which changes the polarity of the incoming RF from
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horizontal to vertical. This gizmo is called a POLAROTOR. Used feedhorns,
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especially C-band-only ones are very inexpensive. You might have to clean
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out leaves, twigs or a wasp nest, but this is all part of the fun. Expect to
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pay between $10 and $30 for a used feed depending on condition. If you find
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one with a bug nest in it, you should get that one for free (Wasps LOVE to
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build nests in feedhorns). The feedhorn is a pretty universal component, and
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has not changed much since the dawn of the home satellite industry.
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LNA or LNB
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The old first generation receivers used a LNA (Low Noise Amplifier) along
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with an IF convertor located at the dish itself. The resulting 70 MHz signal
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was sent down a co-ax cable to the receiver, and a tuning voltage sent back
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along the same cable. This technology has been totally abandoned in the home
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market in favor of LNB technology, which converts the satellite frequencies
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(in the 3-4 GHz range) to a block of frequencies in the 950 to 1450 MHz
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range.
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What this means is that there is a TON of old 70 mhz systems out there that
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NOBODY wants. Receivers can be had for $20 to $35, and the matching LNA can
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go for as little as $5. Again, you will not be getting state of the art at
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this price. Noise temperature (a means of measuring sensitivity) will be in
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the 65 degree range, which is crude, but which will work just fine on most of
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the domestic satellites with a 10 foot dish. You won't want to use such a
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system forever, but this is a great way to start.
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POSITIONER
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On the used market, expect to pay around $30-$50 for an older style position
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controller. You might be able to scrounge this for free from the back room
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at a satellite dealer though. A wise dealer knows that you will be back for
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more, and so will be glad to part with stuff he knows he will never be
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able to sell. Here is the one area that you CAN build your own if you really
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want to go crude. All you need is to build up a DC power supply at the
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proper voltage to match your actuator arm, and use a DPDT switch to reverse
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the voltage on the two drive wires. You need a momentary contact DPDT switch
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with a neutral position. Flip it one way to scan east and one way to scan
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west. Most electronic hobby types have all the components to build a
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position controller sitting in their junk box. Now here is the neat trick:
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To determine what satellite you are watching, you connect a digital VOM to
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the lead that goes to the potentiometer in the actuator, and read the
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resistance. Note these numbers and you can always go back to the same
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satellite. Crude but workable. In practice, it is simpler to just scrounge
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a REAL controller, but I imagine someone might want to build one up just to
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say they did.
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CABLES
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You will need the following cables to get the signal from the dish to your
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receiver setup:
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Coax for LNA or LNB - Should be RG-6
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Power for Downconvertor and LNA if you have an older 70 MHz system
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Power to actuator Arm (Two conductors)
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Return position readout from actuator (Two conductors)
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Power to polarotor (Two conductors)
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While "All-in-one" cables are pretty cheap, I chose to make up my own cables
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since I have a few miles of various wires and cables here, which I obtained
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free when an electronics business closed up shop. My installation is not
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pretty. I meant to tie and bundle all the cables, I really did. But I was
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just in such a hurry to see if the system worked, that I just strung the
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cables in semi random fashion. It worked so well I did not want to disturb
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it once it all started playing. If you don't have access to such a stash of
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cables, I would bite the bullet and get the new stuff. You will definitely
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want to use the absolute newest and best co-ax for the signal feed. Of
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course you will also need the proper fittings and connectors.
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RECEIVERS
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As stated earlier, the older 70 MHz first generation receivers are basic
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giveaway units. $35 is the top price you should expect to pay for one of
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these. Some of them are pretty crude. My first receiver was a SAT TECH
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R-5000, the most simple satellite receiver ever made. It had analogue
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tuning, and you really did not know what transponder you were on. But it DID
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tune the C band, and had baseband output (you will want this jack for
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receiving additional audio channels). I got the receiver in trade for a
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microphone. The microphone had a value of around $5, but I had gotten IT for
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nothing several years before.
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You can have a LOT of fun with an old 70 MHz system. Indeed, with the proper
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add-ons, it can provide very serviceable stereo audio reception and decent
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viewing of all the major C band satellites. The best part is that this
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equipment is available virtually free if you know where to look. (Sat
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dealers, sat hobby folk, hamfests, etc.)
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If you can, though, you will eventually want to get a receiver that uses the
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current state of the art LNB 950-1450 technology (there are some older
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receivers that use weird block frequencies, stay away from these as they are
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not upgradable, stick with the standard block if possible, as it is easier to
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upgrade). My first 950-1450 block receiver (and still my current one) cost
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$100 used from my favorite used satellite equipment dealer...
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ADD-ON GIZMOS
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The first thing you will want to add to an older system is a STEREO
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PROCESSOR. This device is actually two FM receivers in one box that tunes
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from 5 to 8 mhz, and has dual bandwidths. These are available from a variety
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of sources (The sat dealers, and hobby traders) but the best deal we knew of
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is at SHOP AT HOME, though they are no longer available from this dealer. It
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is possible you might find one on the used market, or through another
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dealer. The Janeil SP-2000 is a digital readout audio processor that
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connects to the BASEBAND output of your satellite receiver and will give you
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full stereo reception of not only TV feeds, but also a wide variety of stereo
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audio services, as well as mono ones. These include the BBC world service
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radio, and other international broadcasters, background music, major radio
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stations from all over the country, network radio stations, talk shows, and
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even reading services for the blind. While the Janiels are apparently just
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about all gone, there were similar units made by Drake and others, and you do
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run into them at swap meets. This device makes possible reception of wide
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and narrow audio subcarriers with even the most primitive satellite receiver.
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SCPC
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Another low priced add on that will give you hours of fun is a receiver for
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SCPC (Single Channel Per Carrier). This will provide you with over 100
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additional audio services of music, talk, radio networks and regional
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stations, as well as a TON of sports audio. The cheapest SCPC scrounge we
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know is to take a Radio Shack or similar TV AUDIO BAND RADIO (The Portavision
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40 works great) and connect it to the 70 MHz loop if your receiver has one, or
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tie it into the 70 mhz line of an older 70 mhz system. Tune TV BAND #1 for
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the SCPC audio which is found on G4, Channels 1-4 and G2, channels 1-3 among
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other places. Total investment: $40.
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KU BAND
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While most new satellite receivers now receive the KU band (11-12 GHz) the
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older ones do not. HOWEVER, there IS a KU band convertor that does a
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serviceable job of adding this band to ANY C-BAND system that uses the 950 to
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1450 block band. It is the UNIDEN UST-55, which is a matching component to
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their older receivers, but will work with all C band units using the standard
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block. You will need to add a KU band feed and a KU LNB. There are a few
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used dual band feeds, but they are pretty scarce, so when it comes time to
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convert to KU band, you might have to buy your first piece of new equipment,
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namely the KU feed and KU LNB. These will run you just over $200 from a
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reputable dealer. KU band is still not widely used, and is more for those
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who enjoy wild feeds, educational programming, news, or NBC programming.
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However, KU is growing, so the UST-55 would be a nice investment if you can
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find one.
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SOURCES OF USED EQUIPMENT:
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Use the local penny shopper paper
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Our local shopper paper has satellite systems just about every week, complete
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systems, dish, receiver and all, for between $200 and $500. But here, make
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sure you know what you are buying. If it is an older first generation, 70
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MHz LNA type system, the only component of real value is the dish itself. If
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you don't see ads for used systems, try to place an ad of your own looking
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for used satellite equipment. You might be surprised at the response you
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will get. Many people got discouraged when scrambling began, and signed up
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for cable rather than buy descramblers. Their satellite systems thus just
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sit unused, waiting for someone to take them away. Such a system can be
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had pretty cheaply.
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Satellite Dealers in your area
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Try and befriend a technician, and get into the SHOP. While the scrounger
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will enjoy looking at all the shiny new stuff in the showroom, the real
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treasures are in the back where the techie types hang out. Here you will
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find the stuff that has been traded in, or salvaged, and can usually be had
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very very cheaply.
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Friends or relatives who have gone cable
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You could very well have a relative or friend, or friend of a friend who
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used to have a satellite system and then got cable when scrambling
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started, or when cable finally came to their rural location. Here you can
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sometimes get the system just for the taking, or for a couple hundred
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dollars at the most. This is a good way to get a complete working system at
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a very low price. Tell ALL your friends you are looking for a used system.
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And tell them to ask THEIR friends for you. This method is surprisingly
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effective.
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Hamfests
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Lots of satellite hobby folk are also ham radio operators, and hams trade
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used equipment like kids swap baseball cards. DAYTON has dozens of people
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selling used satellite stuff every year. Even my local ham swap meet had a
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fellow selling sat receivers as low as $15 each! This is a real opportunity
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IF you know what you are looking for. Here though it is Caveat Emptor.
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What you get may not work, so don't spend the grocery money. However you
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can also luck out and come home with a real treasure.
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Over the air ham swap nets
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Same deal as the hamfests, many local and regional ham radio nets trade for
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equipment over the air, and occasionally satellite gear is offered. And if
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you have a ham license, it would not hurt to get into the group and let them
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know you are looking for used satellite equipment.
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Bank repossessions
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Call the banks in your area and talk to a loan officer and find out if there
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are any repossessed systems in their inventory. Here you will probably spend
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more than our $500 target price, but you might also get a modern state of
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the art system at a rock bottom price.
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Morgan Engineering
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Dan Morgan refurbishes receivers and other gear, and has used equipment at
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reasonable prices, These are current technology receivers, and range from
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$100 to $300. Dan also has other components to round out your scrounged
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system, and loves to chat. He is one person I know who does not put down
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the scrounger, but actively encourages them to pursue the hobby.
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Morgan Engineering
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517-685-3970
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119 W. Main Street
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Rose City, MI 48654
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Mike Kohl, Global Communications.
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Mike is a satellite nut, and runs a small business whose goal is to find the
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best deals on Satellite stuff in the country and sell it at the lowest markup
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possible. I have known him for two years, and bought a lot of stuff from
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him.
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Currently he is offering a EUROSAT 150 channel receiver with Digital Memory
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and stereo. I bought one and it is great! It does not have a positioner,
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but those are easy to find. The best deal is that this receiver is only
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$159, for a BRAND NEW UNIT. He has a 25 degree Cal Amp LNB for only $49, and
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if you buy the receiver AND the LNB you can upgrade your old 70 Mhz system
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for $200, not a bad deal for NEW equipment. Something to consider for down
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the road when you want to step up. He is also a good source of other parts
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and components, and is also good to talk to about satellite stuff and can
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help you get your system (whatever you find, and wherever you buy it) up and
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running.
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Global Communications 608 546 2523
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P.O.B. 747
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Spring Green WI 53588
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There are likely many other sources of used equipment, certainly within your
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own region. The secret is to keep looking, and let all your friends and
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relatives also know you are looking. Eventually someone, a friend of a
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friend will know someone who has old satellite stuff laying around, and you
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will be rewarded. I know of many folks who have built systems for next to
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nothing, and so can you. It takes a bit of effort, but the results will be
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worth it.
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HOW-TO BOOK
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I recommend the Ken Reitz book: SATELLITE TV SOURCEBOOK which is an ideal
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book for the beginner. It is written in plain English, and gives a good
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background on the hobby, including how to install your dish system.
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A bit of warning: The satellite hobby is an addictive one. With all the
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programming you will find even with the cheapest scrounged system, you will
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find there are not enough hours in a day to enjoy it all. And if you get
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bitten by the Satellite DX bug, always looking for the new and the strange,
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you could find virtually all your spare time spent at the controls of your
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satellite system.
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But that's the fun of it....
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If you have any comments or additions to this article, or want to report your
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own scrounged system, write me at the SIGNALS address or send EMAIL to
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flash@lopez.marquette.mi.us and let me know YOUR scrounger story.
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Keep Watching The Skies.................
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--
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/ Gary Bourgois, WB8EOH, The Birdwatcher: Marquette Michigan USA \
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([-o Radio Omega T2/21 5.8 - FRIDAY NIGHT LIVE Weekly 10PM Eastern o-])
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\ Now a snazzy new DOMAIN address! flash@lopez.marquette.MI.US /
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birdwatcher@genie.geis.com FAX: (906) 228-7477 BBS: (906) 228-4399
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