ENERGY-ONIX PACKAGES
HIGH POWER FM TRANSMITTERS
(10KW TO 30KW TRANSMITTER POWER OUTPUTS)


The FCC authorized power of an FM station is designated as EFFECTIVE RADIATED POWER (ERP).

ERP is a function of:

    A) Transmitter output power.
    B) Transmission line loss (type and length).
    C) Antenna power gain (number of bays).

Use the chart below to find the Energy-Onix transmitter/antenna combination appropriate to your needs. The LEGEND C-SERIES transmitters are completely solid state, and the ECO SERIES transmitters incorporate solid-state drivers and 1-tube grounded grid outputs.

Locate the desired ERP value on the chart, and then follow the row and column entries to find the optimum Energy-Onix transmitter and SWR FM10 antenna for your facility.

          Recommended for 25KW ERP

          Recommended for 50KW ERP

          Recommended for 100KW ERP

Energy-Onix High Power
Transmitter/Antenna Combinations
SWR
FM10 Series
High
Power
FM Antenna
LEGEND 10,000C
LEGEND 20,000C
LEGEND 20,000C
ECO-22
ECO-25
ECO-30
ECO-10
ECO-15
ECO-22
Up to
10KW
Transmitter
Pwr Output
UP TO
9KW
AIP*
Up to
15KW
Transmitter
Pwr Output
UP TO
13.5KW
AIP*
Up to
20KW
Transmitter
Pwr Output
UP TO
18.0KW
AIP*
Up to
22KW
Transmitter
Pwr Output
UP TO
19.8KW
AIP*
Up to
25KW
Transmitter
Pwr Output
UP TO
22.5KW
AIP*
Up to
30KW
Transmitter
Pwr Output
UP TO
27.0KW
AIP*
FM10/1
1-BAY
.46 PWR GAIN
UP TO
4.14KW
ERP
-----
-----
-----
-----
-----
FM10/2
2-BAY
1.0 PWR GAIN
UP TO
9.00KW
ERP
UP TO
13.5KW
ERP
UP TO
18.0KW
ERP
UP TO
19.8KW
ERP
-----
-----
FM10/3
3-BAY
1.5 PWR GAIN
UP TO
13.5KW
ERP
UP TO
20.2KW
ERP
UP TO
27.0KW
ERP
UP TO
29.7KW
ERP
UP TO
33.7KW
ERP
UP TO
40.5KW
ERP
FM10/4
4-BAY
2.1 PWR GAIN
UP TO
18.9KW
ERP
UP TO
28.3KW
ERP
UP TO
37.8KW
ERP
UP TO
41.6KW
ERP
UP TO
47.2KW
ERP
UP TO
56.7KW
ERP
FM10/5
5-BAY
2.7 PWR GAIN
UP TO
24.3KW
ERP
UP TO
36.4KW
ERP
UP TO
48.6KW
ERP
UP TO
53.5KW
ERP
UP TO
60.7KW
ERP
UP TO
72.9KW
ERP
FM10/6
6-BAY
3.2 PWR GAIN
UP TO
28.8KW
ERP
UP TO
43.2KW
ERP
UP TO
57.6KW
ERP
UP TO
63.4KW
ERP
UP TO
72.0KW
ERP
UP TO
86.4KW
ERP
FM10/7
7-BAY
3.8 PWR GAIN
UP TO
34.2KW
ERP
UP TO
51.3KW
ERP
UP TO
68.4KW
ERP
UP TO
75.2KW
ERP
UP TO
85.5KW
ERP
UP TO
102.6KW
ERP
FM10/8
8-BAY
4.3 PWR GAIN
UP TO
38.7KW
ERP
UP TO
58.0KW
ERP
UP TO
77.4KW
ERP
UP TO
85.1KW
ERP
UP TO
96.7KW
ERP
UP TO
116.1KW
ERP
FM10/10
10-BAY
5.6 PWR GAIN
UP TO
50.4KW
ERP
UP TO
75.6KW
ERP
UP TO
100.8KW
ERP
UP TO
110.9KW
ERP
UP TO
126.0KW
ERP
UP TO
151.2KW
ERP
FM10/12
12-BAY
6.7 PWR GAIN
UP TO
60.3KW
ERP
UP TO
90.4KW
ERP
UP TO
120.6KW
ERP
UP TO
132.7KW
ERP
UP TO
150.7KW
ERP
UP TO
180.9KW
ERP

*AIP – ANTENNA INPUT POWER is determined by the type and length of transmission line between transmitter and antenna. The figure given is based on a transmission line efficiency of 90%, which is a good ballpark figure for use in system planning. Your exact line efficiency figure will be determined by the actual facility configuration.

As may be seen from the chart, equivalent ERP values can be produced by:

A) High transmitter output power/low antenna power gain.
B) Low transmitter output power/high antenna power gain.
C) Some combination in between.

Obviously, an antenna cannot "amplify", so how does a multi-bay antenna produce a higher ERP? The answer lies in consideration of the useful component of the antenna's radiation pattern. This "useful" elevation component is the radiation directed toward the horizon. (Anything above will be "Lost in Space"; anything below will have a "Close Encounter" with the ground.) A single bay antenna will produce (more or less) a "ball" of radiation, while a 12-bay antenna will produce a relatively narrow beam directed toward the horizon.

So why doesn't everyone use very high gain antennas? After all, with a high gain antenna, you can use a lower power (and less expensive) transmitter, as well as paying lower monthly electric bills. The downside is increased antenna size (and cost), increased tower height, and increased wind loading. Even if these limitations are acceptable, there is a further consideration.

Imagine a facility with a high antenna located within a populous area. If a high gain (narrow beam width) antenna is used, it is possible for the signal to "skip over" areas relatively close to the tower, resulting in significant gaps in coverage. (It is possible, as an extra cost option, to incorporate "beam tilt" in the antenna design to alleviate this problem.) On the other hand, a low transmitter power, high antenna gain installation could be ideal for a heavy duty tower located some distance from the high density population area.

The "ball of radiation" produced by a low gain antenna is sometimes the optimum choice, particularly for areas where multi-path (reflection) propagation is a problem and a narrow beam width is undesirable.

We recommend 1 5/8" air dielectric coaxial cable for up to 10KW transmitter power output, and 3" transmission line for transmitter power outputs above 10KW.

FLEXWELL HCC158-50J 1 5/8" cable is priced at $17.20/foot and efficiency is 95.4% per 100 ft.

FLEXWELL HCC300-50J 3" cable is priced at $29.70/foot and efficiency is 96.8% per 100 ft.

The ECO-10 and Legend 10,000C utilize 1 5/8" EIA flanges; however, the FM10 series antennas utilize 3 1/8" EIA flanges, so for 1 5/8" cable installation, a reducer is required. The MYAT 301-064 3 1/8" - to - 1 5/8" reducer is priced at $250. All other listed transmitters utilize 3 1/8" flanges.

Transmission line must be pressurized with dry air or nitrogen to prevent moisture intrusion. In order for this to be accomplished, a gas barrier connector (with pressurization port) is installed at transmitter end of cable, and a gas pass connector is installed at the antenna input.

1 5/8" EIA
3 1/8" EIA
Gas Pass
$268.00
$500.00
Gas Barrier
$309.00
$500.00

Accessories required to complete cable installation include:

A) One HOISTING GRIP for every 200' of cable (vertical run): 1 5/8" - $51.00;
3 1/8" - $78.00
B) One HANGER KIT for every 30' of cable (vertical run): 1 5/8" - $41.00; 3 1/8" - $70.00
C) Three GROUNDING KITS – one near antenna input, one at bottom of tower, one at building entrance: 1 5/8" - $33.00;
3 1/8" - $34.00
D) One WALL FEED-THRU: 1 5/8" - $75.00; 3 1/8" - $140.00
E) One NITROGEN TANK REGULATOR KIT: $295.00


Prices are subject to Change. Please call Energy-Onix for the most up to date prices.

Home || Company History || Guestbook/Information Request || Broadcast Transmitters || Medium Pwr Packages || LPFM

CONTACT INFORMATION
Our Address:
PO BOX 801
1306 River Street
Valatie,NY 12184
Phone 518.758.1690 FAX 518.758.1476
E-MAIL: info@energy-onix.com