Contact MIKE KOHL at GLOBAL COMMUNICATIONS           Plain, Wisconsin

             E-Mail   globalcm@mhtc.net            Telephone  608-546-2523

 

PRODELIN  1.2 meter 
Offset Antenna

1.2 meter Offset SMC Single Panel Reflector

Fixed Az/El Galvanized Mount

Includes Single Port Ku-Band Linear Feed System

Elevation Alignment Indicators

Compact packaging for low shipping costs

ELECTRICAL SPECIFICATIONS

Antenna Size

1.2 Meter

Ku-Band

Operating Frequency (GHz)

10.95 to 12.75 GHz

Midband Gain (+ .5dB)

42.0 dBi

3dB Beamwidth

1.4

Antenna Noise Temperature (20 Elevation)

46 K

Antenna Noise Temperature (30 Elevation)

43 K

Operating Frequency (GHz)

10.95 12.75

Feed Interface

WR-75

First Sidelobe (typical)

-23 dB

Cross-Pol Isolation

>30 dB (on axis)

VSWR

1.3:1 Max.

 

MECHANICAL SPECIFICATIONS

Reflector Material

Glass Fiber Reinforced Polyester SMC

Antenna Optics

Prime Focus, One-piece Offset Reflector

Mount Type

Elevation over Azimuth

Mast Pipe Size 2-3/8 inches outside diameter

Elevation Travel

0~90 Continuous Fine Adjustment

Circular Elevation
Adjustment Range

12~90 Continuous Fine Adjustment

Azimuth Adjustment

360 Continuous

ENVIRONMENTAL
SPECIFICATIONS

Wind Load

Survival

Operational



125 mph (201 km/h)

45 mph with 2 pointing error (72 km/h)

Temperature

Survival

Operational



-50 to 160 F (-46 to 71 C)

-40 to 140 F (-40 to 60 C)

 

 
 
PRODELIN  1.8 meter  Offset Antenna

  Precision Compression Molded Offset Reflector

  Installation time reduced with improved mount design

  Fully Galvanized Steel Az/El Mount

  Fixed Az/El Model P180FAE   -or-
  Polar Mount Model P180PLR  with Motorization Package

  C or Ku-Band Matching Offset Feeds available

 

ELECTRICAL SPECIFICATIONS

C-Band

Ku-Band

Antenna Size

1.8 Meter

1.8 Meter

Operating Frequency (GHz)

3.625 to 4.2 GHz

10.95 to 12.75 GHz

Midband Gain (+ .2dB)

35.5 dBi

45.5 dBi

3dB Beamwidth

2.9

0.9

Antenna Noise Temperature (20 Elevation)

49 K

38 K

Antenna Noise Temperature (30 Elevation)

47 K

35 K

Feed Interface

CPR229F

WR75

First Sidelobe (typical)

-20 dB

Cross-Pol Isolation (Linear)

>30 dB (on axis)

VSWR

1.3:1 Max

 

MECHANICAL SPECIFICATIONS

Reflector Material

Glass Fiber Reinforced Polyester SMC

Antenna Optics

Prime Focus, One-piece Offset Feed

Mount Type

Elevation over Azimuth

Mast Pipe Size

3.5" SCH 40 Pipe (4.0" OD)

F/D Ratio / Feed Support

0.6 / Tripod Feed Support

Elevation Adjustment Range

5~90 Continuous Fine Adjustment

Azimuth Adjustment Range

360 Continuous

ENVIRONMENTAL SPECIFICATIONS

Wind Load

Survival

Operational



125 mph (201 km/h)

45 mph (72 km/h)

Temperature

Survival

Operational



-50 to 160 F (-46 to 71 C)

-40 to 140 F (-40 to 60 C)

 

MOTORIZED 1.8 METER POLAR MOUNT

 

An inside secret among satellite professionals is the increased efficiency of offset reflectors vs. the standard prime focus type.  These flatter antennas have a typical f/d ratio around 0.6, resulting in significantly higher gain and higher sidelobes.  When a proper feedhorn or LNBF is matched to the physical characteristics of an offset antenna, you will often find that a slightly smaller diameter will be acceptable, when compared to the prime focus type.

Until recently, the most desirable motorized C/Ku system for consumers has been a 10 foot (3.0 meter) prime focus dish of mesh construction.  Now that it is over three years since any have been manufactured in North America, the supply of new antennas has virtually dried up.  You are left with flimsy imported antennas, or better made commercial types, with a wide spread between the two price lines.

Six foot prime focus antennas of any type usually come up short in signal collecting abilities, excepting the strongest ones.  Eight foot models are advised overall, to provide the ability to do C and Ku-band at the same time without major problems caused by 2-degree spacing on C-band.  
Enter the six foot offset dish, equipped with a polar mount, motor drive, and antenna controller.  Those that cannot install a larger dish may find that this is a very acceptable compromise for motorized C-band Free-To-Air reception.  We have put together a system that includes these and some other components, allowing use of better Free-To-Air receivers to access the entire satellite arc.  Because of the uniqueness of the feedhorn design, there is not an out-of-the-box C/Ku band solution for the 6-foot offset dish.  We suggest that you consider one of our larger prime focus antennas in the 8, 10 or 12 foot size, made of multi-panel fiberglass construction, for respectable due band operation.
While overkill for Ku-band, you could not go wrong with a dual output Ku-band feedhorn on a separate motorized dish controlled by a separate receiver.

Then there is the legendary Multi-feed concept, pictured kitty corner below left.  This monster has 13 LNBFs spaced 2 degrees apart.  At latitudes of 40 to 45 degrees, you can see between 27 and 30 degrees of azimuth without major loss on the same dish.  Further south, due to greater changes in elevation, the window provides a few less satellites.  Further north, maybe a few more.
Contact MIKE KOHL for details and budgetary suggestions.
 


          Offset Ku-Band Antenna with Multi-Feed Assembly
                              and 13 Ku-Band LNBFs
Motorized 6-foot  (180 cm) Offset C-Band System:

                              Components include:

Prodelin 180 cm offset antenna with Polar Mount
Prodelin 2-output H/V Offset C-band Feedhorn
(2) C-Band LNBs  (customers choice of stability)
H/V switching network or FTA receiver equipped with 2 inputs
24-inch Heavy Duty Linear Actuator
MPEG-4 HD Free-To-Air Satellite Receiver
Heavy Duty Antenna Positioner Controller
Control cabling  (One motor bundle and two RG-6 coaxial cables)
Customer-supplied 4-inch O.D. steel mounting pipe, installed.

Separate Ku-band system:  duplicate above, except for 2-output Offset Ku-Band Feedhorn and (2) Ku-Band LNBs instead of C-band devices.


   

PRODELIN 2.4 meter  (8 foot)  Prime Focus Antennas
Fixed Mount and Polar Mount Models Available




PRODELIN 3.0 meter (10 foot)  Prime Focus Antennas
Fixed Mount and Polar Mount Models Available




PRODELIN
3.7 meter  (12 foot)  Prime Focus Antennas
Fixed Mount and Polar Mount Models Available


   
MIKE KOHL
GLOBAL COMMUNICATIONS
S-9141 STATE ROAD 23
PLAIN, WI   53577

Website:   www.global-cm.net

E-Mail     globalcm@mhtc.net

Message Telephone   (608) 546-2523



PRODELIN
4.5 meter  (15 feet)
Fixed Mount Model Available








The design of large diameter satellite systems should not be left to inexperienced Internet contacts claiming to offer the lowest price.
Those that have to drop prices to a razor thin margin to retain business should be thoroughly questioned on their technical abilities while being asked to provide references. Evolution of the satellite industry has greatly thinned out the number of people qualified to offer advice in this area.

True professionals are beginning to become difficult to find, and their advice is often generously given while quoting a fair markup for products sold.  Such good advice can save you huge amounts of money by steering you away from making costly mistakes.  The old saying that one gets what they pay for is almost always the case.

Mike Kohl is one of those sages, who has been in the commercial as well as military parts of the satellite industry for over 40 years.  Due to the loss of his wife last year due to cancer, and competition from a few desperate vendors willing to make next to nothing in order to turn inventory, he has had a difficult time this past year.  This has finally gotten to the point where he is taking a full-time position with an international company that is building a worldwide Internet television distribution platform.  This means that the best way to reach Mike is with an Email to globalcm@mhtc.net
presenting your situation in detail, with contact Email and telephone number along with best local time to return a phone call.  While Mike may be impossible to reach during normal working hours, he will be burning the midnight oil and can help you at other times of the day, provided that he can fit you into his schedule.  We can still do business, but it will be less often possible to reach him directly by telephone.

If you want to have the input of someone that does know which way your satellite antenna should be pointing, among many other things, please be patient and write an Email.  If we cannot help you, we will be truthful about your situation.  Otherwise we will welcome your business and find the most practical way of making it possible to do a transaction.  Satellite is in our blood, and we simply don't see it logical to completely close the doors of Global Communications.

Antenna system prices always require a few contacts to determine what is actually needed, and then a freight calculation.  So please let us know what we can do for you, keeping those Emails coming in.  Also please note that Mike will continue to try to be available on the Wednesday night Access America radio show with Ralf Black.  Drop a line and maybe we can discuss your questions on the air, possibly helping someone else.  There are few really stupid questions, we understand that you might ask one in an attempt to gain knowledge, but if that is the case, it should no longer be a stupid question--if you get an answer that is helpful.