|PART 15 AM ANTENNA||IS NOW
Due to Popular demand, the copper pipe antenna outlined in the sstran website is now available for purchase.
If you own a sstran AMT 3000 tx and require an antenna, this is the place to look! If you do not own an AMT 3000 transmitter, you need to confirm that your transmitter can accomodate this antenna before you purchase one from us.
Most part 15 transmitters with a 9.5 foot wire antenna will benefit from being connected to a coil/copper pipe, base loaded antenna. The difference in using a copper pipe/coil/base loaded antenna and a stranded copper insulated wire is tremendous and a more powerful, professional sound will emanate from your transmitting station.
UPDATED INFORMATION AS OF JANUARY 19, 2009
ANTENNA FOR SSTRAN AMT 3000 AND RAMSEY TRANSMITTERS
(or for any transmitter configured like it, excluding the and transmitters configured like it)
Carl Van Orden
954C Golf Park Drive
Lake Ariel, PA 19436
This is a 2009 Price List (1/15/09). Subject to change due to commodity prices:
3"x11" coil: side-mount $125.00 (tunable) KEPT IN STOCK
3"x11" inline coil (does not mount on side, mounts inbetween bottom of antenna and top of mast pipe/2" hole on top and bottom of coil for mounting:$140.00 KEPT IN STOCK
2"x20" coil: side mount $180.00 (tunable) BUILT TO ORDER
2"X30" coil: side mount $250.00 (tunable 1000-1710kHz) <also known as 'The Rio's Coil'>BUILT TO ORDER
Taps are scraped and ready to use. Capped top and bottom. Coil is coated in polyurathane.
10-10'0" radial: $90.00 KEPT IN STOCK
20-10'0" radial: $170.00 KEPT IN STOCK
20-20'0" radial: $225.00 BUILT TO ORDER
Ground systems are stiff bare copper wire (shipped curled, easy to straighten) soldered to a ring designed to be attached to your mast pipe.
My version of the sstran antenna uses a 2" mast pipe vs 1 1/2" plan spec, 1" vs 3/4" bushing and 1" and 3/4" copper antenna tubing vs 3/4" and 1/2" plan spec. This makes the antenna stronger and provides a better bandwidth.
Comes with mast pipe, insulator, electrical box, 10x10 ground system, 3x11 standard coil, connections, and 1'0"x1" base copper pipe and clamps. Does not include 98"x3/4" top copper pipe and cap, due to shipping restrictions. $350.00
If you plan to build your own antenna and are having trouble obtaining certain parts for it, I keep stock on the parts. You may write me for a price list on parts.
The antenna itself is fairly easy to build, but becomes pricy due to it's weight and size. For those of whom can, I strongly recommend that you build your basic antenna and order coils and ground systems from me. You will save money, both in building your own antenna and order your coil and ground system from me.
The coil is a challenge to build if you have never wound one, and the material is cost prohibitive if you are only building one coil. The ground system is not difficult to build but is time consuming. To date I have built over 200 coils and ground systems/antennas.
In order to cut down on your waiting time for parts, I try to keep a stock of ready-made coils and ground systems on hand. If you would like a specialized coil or ground system, OR can not find a particular part locally, please write and I will give you a price.
All prices INCLUDE shipping,, within the 48 states. Please write for overseas shipping because that cost will be added to the cost of your order.
I accept a money order for your order to the name and address above. Please provide a shipping address where a package can be delivered (not a P.O. Box). I will write you when I ship your package.
Write me, the Antenna Guy at:
firstname.lastname@example.org Subject: Coil/Antenna
My Opinion on Mounting This Antenna:
I feel that the antenna is best mounted on the ground, where the ground system can be spread evenly (like a clock) around the mast pipe. A basic installation would find the antenna in the center of a plot of land 20'0"x20-0" in a best case scenario. Many people forget or do not realize that AM is a ground based signal, not an air based system. The ground system acts as a counterpoise to the antenna as it provides a mirror image of the antenna thereby increasing range and/or strength of signal. Of course, a clear frequency and good contribute to a better overall signal.
Another key to a good signal is proper tuning. This antenna tunes two ways: via a sliding copper pipe and by choosing the correct tap. Tuning is trial and error; some customers gain resonance quickly while others find it a challenge. This antenna is NOT plug and play.
This antenna was designed to compliment and increase the signal generated by a transmitter(s) designed initially to provide signal basically to a house and to it's surrounding yard. Range depends solely on proper installation, proper tuning, a clear frequency and good ground conductivity. If you intend to use this antenna to provide a larger listening area, the transmitter will need to be modified to accept the antenna. The antenna will NOT work on a sstran or Ramsey (or similar unit) if the transmitter is a basic unit which is designed to accept a thin/short wire antenna. Your transmitter can be ordered to accept this antenna and if your model is a basic model, it can be modified.
In the 7-8 years I have been building this antenna and it's parts I have heard from customers who have installed it in virtually every sort of situation; between buildings, in an attic, in the center of a living room floor, in a closet, on a deck/balcony: the list goes on and on. A close by wall will indeed limit your signal so it is best to give the antenna as much "breathing room" as you can. I have heard from customers and have witnessed this personally during testing that by installing radials to one side or some sides of the antenna make it somewhat directional. Radials can be left on top of ground/sod, stone. If buried, they should only be buried 1/2 to 3/4" deep, enough to avoid them if you were using a lawnmower. A buried ground system also provides lightening protection.
The antenna can and often is mounted on a roof where the ground radials can be spread as evenly as possible. While a radial is often attached to an iron railing to provide additional ground it is not recommended to attach a radial to an electrical outlet or to a water pipe which may ultimately be connected to a concrete or pvc pipe underground.
The sstran specs asssume you will use a shortto a lightening rod for lightening protection. All AM antennas should be grounded, however a lightening rod does not provide a counterpoise and does not compliment your signal.
I believe I am the first to recommend ground systems for transmitting antennas like this; prior to this there was no talk of using one. ALL commercial AM radio stations use some sort of a ground system.
When you receive the antenna and coil you also accept the liability of purchasing such a product. We will not be liable if you are not informed on how to build an AM broadcasting station. Once you purchase our antenna, it is yours and yours alone. Our antenna was built according to accepted specifications from the F.C.C. You must use it and install it keeping in mind the Federal rules for part 15 AM.
Part 15 AM