Amateur Radio Site Of  VE1XYL & VE1ALQ, or VE9DW  

23cm & 13cm VE4MA Super Scalar Dish Feed

This is the Famous VE4MA Scalar Ring version of the W2IMU 23cm Dish Feed that works very, very well.  The completed unit has a return loss of NOT less than -30db, usually return loss is -33 to -35db.

I measure the return loss using 4 different calibrated couplers and 2 HP-432A Power Meters. One unit I completed indicated -30db, but when swept with an HP Network Analyzed by the late W6HD, for whom I built units, indicated -35db.

For those who like to roll (build), their own all dimensions are indicated, including the very IMPORTANT feed mono poles and circular polarizer probe. 

Circularity is in the order of +/- 0.5db with the probes used.  All units are made from NEW Materials and coated with UV protective KRYLON coating.  Typical Final results when Feed is completed.

I will NOT be constructing dish feeds until I have Orders for 3 Units and commitment of 50% payment. The reason for 3 units is to long and boring to explain, hi.

Copper Material Cost has increased to the point of RIDICULOUS.  Price for Super Scalar Version is $321.00USD + Shipping. + Wood Framed Shipping Package that cost me $51.00. IF U Want one Contact me please

Components available for those who wish to Build their Own WG and Scalar Ring consists of 10, polarizer Stubs, 20 Hex Nuts, two completely assembled and tuned Silver Mono Poles with Silver Plated Fittings, Plus the necessary Taps to install components. This Mono Pole and Polarizer Stub Package is available for $98.00USD + Mailing Cost, complete with all fittings and connectors. The Mono Poles are Solid Silver Rod's and will be Pre-Tuned in a Cavity using the exact dimensions shown in the VE4MA Drawings....

Any divination from those dimensions it is YOUR DESIGN, NOT VE4MA's, and I will NOT Sell you Components Kit for DOUBLE the price. See Return Loss Numbers above. This Kit will handle 2000W without any sign of Corona at the tips. If you need 7/16 Din Connectors you are 5KW over the Legal Limit, hi hi.

Many thanks to all for now, Darrell.

Please Click on each Image to enlarge

Cross Mono Pole coupling with this system is approx. -24db to -25db without the use of cross coupling stub. System noise is reduced by 10 to 12deg Kelvin over 90deg. Hybrid coupling to attain polarity circularization. 

As with any construction projects, although a Hobby,  tolerances, accuracy and performance is of the utmost importance.

If you have any questions PLEASE contact me,    Even if you decide to build your own, hi.

Regards & Thanks, Darrell -- VE1ALQ.

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