HANK BREEDLOVE MACHINE  SHOP

High

Frequency


High

Power

Insulator

Designed for use with any

antenna coupler such as the

SG-237, SG-231, etc.


Greatly reduces power

robbing shunt capacitance

at the antenna base.


Works great with mobile,

portable, and base station

applications.


Allows tuning lower

frequencies than with typical 3/8"-24 antenna mounts.


Prevents Arcing, a leading cause of antenna coupler

failure.

Regular insulator with a Quick Disconnect Mount complete  set for only $60.00

1/2 inch stud on both ends.

$ 35.00

FYI

I wanted to tell you that I tested the capacitance of the last  "High Power, HF Insulator" I got from you. As you know the lower the capacitance, the  better. I found it to be lower than I expected. About 2.9 picafarads. This is indeed very low. I tested two fender washers with paper between them and they had ~75 pf. So, your insulators with <3 pf are very low.     Thanks.


David F. Branson


Senior Technician

Action Communications, Inc.

Tucson, AZ

www.kc0ll.net

www.ActionCommunications.com

Test Results for the HF Insulator   from a satisfied customer

    This is a new style of my own which, like all my stuff is super strong.  1-1/2 inch OD Delrin insulator with the power and ground connections made on the side studs.   The studs have a 10-32 screw (3/16").  With this set-up you do not have to put the wire under the antenna and weaken it's support.

    There is over one inch of insulation between the metal parts internally.  It doesn't matter how big your antenna is, this insulator will hold it.  You can tighten either end as much as you want and not strip the Delrin.  When tightened, no stress is put on the Delrin.  All it has to hold is the antenna weight and it can't let go until you tear the whole thing in two.  It should easily carry 20 pounds or more.

     It is water tight and air tight so nothing can get to the connections internally to corrode them. And internally there are 3 high pressure points of contact for each stud. With the connections secured under high pressure they would still work even with corrosion.   And they would not be much of that since it is all aluminum and brass and a stainless steel stud in the bottom with a 1/2-20 thread, but which is not removable. 

      Price:  $35.00  available in black only

Here is what they advise about the other

insulators on the market.

TIGHTEN BOLTS CAREFULLY - Using a socket or end

wrench, tighten the top 3/8"-24 coupling nut  until the lock

washer compresses and resistance increases.

REMEMBER! Delrin is plastic!   You can tighten the bolts

a little farther, but the Delrin, though very strong for plastic, will

still strip fairly easily. The system is strong enough to easily

handle a stainless steel CB whip or a small fiberglass whip. I

have not tried larger antennas like Hustlers and such, so use

them at your own risk. Guying is strongly recommended.

None of the above applies to my HF Insulator.

The HF insulator  comes in three

different styles

                       Style 1

            3/8-24 Thread Both Ends


                  Style 2

1/2-20 Stud on bottom  3/8-24 thread

on top


                  Style 3

1/2-20 Stud on both Ends

To use with my mounts

Package Deal !