Canadian TV, Computing and Home Theatre Forums - View Single Post - GH for UHF (Plans, Parts Lists, Build Tips by 300ohm)

300ohm · 2008-07-10, 10:51 PM

Parts List
====================================================
2 - 10 foot pieces of 1/2" sch 40 600psi pvc pipe.
2 - 1/2" sch 40 pvc elbows.
1 - 1/2" sch 40 pvc cross.
17 - 1/2" sch 40 pvc tees. (Buy 2 contractor 10 packs)
30 - Nylon wire ties. (Buy a 50 pack)
36 - 1/2" x #6 plated wood screws. (Buy a 50 or 100 pack)
2 - 5 foot pieces 6 gauge solid copper wire. (This is $.84 a foot at Lowes. Buying just one 5 foot piece of 10-2 solid wire and stripping it will save approx 60% and is stiff enough with the stub holders.)
1 - 30" by 40" 10 gauge piece of fencing, 2" X 4" grid or less. (1" x 2" would be ideal as it would give about 1/4 db more gain at channel 17, about 1/2 db more at channel 40, but it would decrease my chances of reception of channel 36 Atlantic City about 180 degees east)
2 - 1 1/4" ID u-bolts to clamp antenna to mast.
4 - #10 x 1" stainless or brass pan head screws.
2 - #10 x 1 1/2" brass bolts. (for least galvanic corrosion at connection point)
4 - #10 brass nuts.
10 - #10 brass or copper washers.
1 - Tube Plumbers Goop. (Or Loctite Plumbers and Marine Adhesive or plumbing PVC cement or epoxy or even plastic model glue, this is antenna work not plumbing.)

Miscellaneous and Beauty
=======================================
4 - Sch 40 pvc caps.
1 - Can of flat black spray paint.
1 - 300ohm to 75 ohm balun
Length of RG6 cable and ends to suit.

Cutting List
===========================
A) 4 pieces @ 3 7/8"
B) 4 pieces @ 8 1/2"
C) 4 pieces @ 3 5/16"
D) 4 pieces @ 4" * (These stub holder pieces are just pushed in, not glued or screwed.)
E) 2 pieces @ 37 9/16"
F) 2 pieces @ 8 3/8"
G) 2 pieces @ 8 3/4" # (This gives a 10 inch (254mm) spacing between element inside angles)
H) 6 pieces @ 2 3/8" *
I) 3 pieces @ 1 3/4" # (This gives a reflector to element spacing of 100mm)

>>>>>>>>>>> Push all pipe into fittings 5/8" <<<<<<<<<<<<<<<

# = Critical Size
* = Not a Critical Size

I havent yet priced all the items, but I figure its somewhere about $25 if everything had to be purchased. My out of pocket costs were only about $12, as I had a lot of the stuff. The Channel Master 4221A would cost me $23.99 plus 15.95 UPS ground shipping for a total of $39.94 from SolidSignal. But wheres the fun in that ?????

2008-07-10, 10:51 PM	#8
300ohm Veteran Join Date: Mar 2008 Location: Somewhere in Delaware on the flat side Posts: 7,037	SBGH Plan, Parts List, Cut List, and Construction Notes by 300ohm Parts List ==================================================== 2 - 10 foot pieces of 1/2" sch 40 600psi pvc pipe. 2 - 1/2" sch 40 pvc elbows. 1 - 1/2" sch 40 pvc cross. 17 - 1/2" sch 40 pvc tees. (Buy 2 contractor 10 packs) 30 - Nylon wire ties. (Buy a 50 pack) 36 - 1/2" x #6 plated wood screws. (Buy a 50 or 100 pack) 2 - 5 foot pieces 6 gauge solid copper wire. (This is $.84 a foot at Lowes. Buying just one 5 foot piece of 10-2 solid wire and stripping it will save approx 60% and is stiff enough with the stub holders.) 1 - 30" by 40" 10 gauge piece of fencing, 2" X 4" grid or less. (1" x 2" would be ideal as it would give about 1/4 db more gain at channel 17, about 1/2 db more at channel 40, but it would decrease my chances of reception of channel 36 Atlantic City about 180 degees east) 2 - 1 1/4" ID u-bolts to clamp antenna to mast. 4 - #10 x 1" stainless or brass pan head screws. 2 - #10 x 1 1/2" brass bolts. (for least galvanic corrosion at connection point) 4 - #10 brass nuts. 10 - #10 brass or copper washers. 1 - Tube Plumbers Goop. (Or Loctite Plumbers and Marine Adhesive or plumbing PVC cement or epoxy or even plastic model glue, this is antenna work not plumbing.) Miscellaneous and Beauty ======================================= 4 - Sch 40 pvc caps. 1 - Can of flat black spray paint. 1 - 300ohm to 75 ohm balun Length of RG6 cable and ends to suit. Cutting List =========================== A) 4 pieces @ 3 7/8" B) 4 pieces @ 8 1/2" C) 4 pieces @ 3 5/16" D) 4 pieces @ 4" * (These stub holder pieces are just pushed in, not glued or screwed.) E) 2 pieces @ 37 9/16" F) 2 pieces @ 8 3/8" G) 2 pieces @ 8 3/4" # (This gives a 10 inch (254mm) spacing between element inside angles) H) 6 pieces @ 2 3/8" * I) 3 pieces @ 1 3/4" # (This gives a reflector to element spacing of 100mm) >>>>>>>>>>> Push all pipe into fittings 5/8" <<<<<<<<<<<<<<< # = Critical Size * = Not a Critical Size I havent yet priced all the items, but I figure its somewhere about $25 if everything had to be purchased. My out of pocket costs were only about $12, as I had a lot of the stuff. The Channel Master 4221A would cost me $23.99 plus 15.95 UPS ground shipping for a total of $39.94 from SolidSignal. But wheres the fun in that ????? __________________ My builds/plans (not the latest models) are located here. Last edited by 300ohm; 2008-07-10 at 11:57 PM.