Mobile Antenna Springs
Mark-5
and Mark-6
General Description
The Mark-5 is a commercial grade antenna
spring of polished, all-stainless construction, except for the internal
tinned-copper braid, which bonds its end pieces. The Mark-5 is 2" in
diameter by just under 5" long, with ham-standard 3/8-24 threaded hole in
each end.
The Mark-6 is also all-stainless, except
for the internal tinned-copper braid, which bonds its end pieces. It is an
exceptionally heavy-duty spring intended for very large whips and remotely
tuned antennas. Owing to strength requirements, it is threaded 1/2-13 on
both ends.
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SPECIFICATIONS |
MK-5 |
MK-6 |
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SIZE: |
4.65" High |
6.9" High |
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WEIGHT: |
2.1 lb. |
4.875 lb. |
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TORQUE: |
9 ft. lbs. |
39 ft. lbs. |
| (To
achieve 10-degree deflection, length measured from bottom of
spring to perpendicular load at 3 ft.) |
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THREADS: |
3/8-24
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1/2-13 |
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Pricing/Shipping Info
Mark-5 $89.00 plus shipping.
Mark-6 $225.00 plus shipping.
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(Click image to enlarge.) |
Also available: Pairing plates; allows
pairing two springs side-by-side to double spring constant fore-and-aft, while virtually
eliminating side motion. Stainless steel. Intended for mounting on a trailer hitch.
Contact factory for details.
Information Sheets
Mark-5
Mobile Antenna Spring
Mark-6 Mobile Antenna Spring
