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Flat "Super Duty" HF Antenna Mounts

"Super heavy-duty" bumper and trailer hitch mounts for large HF antennas. Can be mounted to vertical surfaces with the AMB_VMA-4 adapter . Available in buffed aluminum or powder coated finishes.

  • BKT_Flat-4: for large HF screwdriver/motorized antennas with up to a 4" base diameter such as those made by Scorpion Antennas and others (flat mount versions without a SO239 barrel connector).
  • BKT_Flat-4S: for large HF screwdriver/motorized antennas with up to a 4" base diameter such as the Hi Q Antennas "ruggedized" models and others (WITH SO239 barrel connector).
  • BKT_Sksp-1:  for the Shakespeare 4245 "military" spring base that fits the Shakespeare whips up to 32 feet long -AND- the Hi Q Antennas "ruggedized" models. WIth the optional AMB_SG237-Kit1 you can mount an SGC autotuner directly under the mount - makes a great addition to your Shakespeare 16 or 32 ft. vertical in "stationary mobile" configuration!

To download the product installation instructions, click > MANUALS. To view the warranty click > WARRANTY . Our PRODUCT GUIDE lists all of our products, where they can be used and what types of antennas they fit. You may find that our PRICE LIST  is handy if you would like a quick view of all of our product costs, including accessories, options and parts.

To learn more about the specific features of each model, accessories and options, and to order, please read on below.




BKT-Flat-4: SHD Flat Mount (no SO239 connector)

The "Flat 4" is a super duty flat mount for large HF screwdriver/motorized antennas with a base diameter up to 4", such as those made by Scorpion Antennas and others that have a built-in SO239 connector and do not need one on the mount. The "Flat 4" is made of 6061 aluminum, is 3.4 inches thick and 9.5 inches long x 4 inches wide. It has a 3/4 inch diamter antenna mounting hole and a 2 inch hole on the other end for bolting to a trailer hitch or front/rear bumper, or to our optional AMB_VMA-4 "L" bracket for bolting the "Flat 4" to a vertical surface. The hardware is 18-8 stainless steel.

Accessories & Options:

You might also be interested in the following accessories and options that will work with this item. These can be ordered by clicking on the PRODUCT NAMES below, which take you to a detailed description and ordering page for each item. We offer a discount if you order three (3) or more of one or multiple products. For a FAST QUOTE, click > QUOTE REQUEST .

  • SHUNT-100 : weatherproof adjustable HF load inductor for 160-10m, which bolts directly to this mount.
  • SHD-SO239-LA2.0 : a brand new replacement for our SHD-SO239 antenna base.
  • CNCT-PL259-WXQD  : weatherproof quick-disconnect for your coax - unplug your coax neatly if you remove your antenna, without having the plug "dangling in the wind and weather". Use your antenna on another vehicle or fixed- base while you're not operating mobile, or use multiple antennas on one vehicle. Very unique.
  • AMB-VMA-4 : heavy-duty adapter that allows you to attach this mount to a vertical surface.
  • Cables and Connectors  : check out our new listings for cables and highg-quality Amphenol PL259 connectors, "the real deal".

Product Photos and Videos:

The following are just a few of the photos that we have on our products, to illustrate some of the key features and installation ideas for this item.

PHOTO BELOW: What you get with the "BKT-4" - buffed bare aluminum (shown) or five powder coat colors. The hole in the foreground (3/4" dia., 3/4" panel thicknes) is for mounting the antenna. The two 1/4" bolts with HD sholder lugs (not shown, are on bottom side in photo) are for grounding purposes - use one or both as needed. The rear hole (1") is for mounting, using a 5/8 to 1" bolt or trailer hitch ball.

PHOTO BELOW: Shows the "BKT-Flat-4" mounted to the AMB-VMA-4  adapter bracket for bolting the BKT to a vertical surface. The "VMA" can be mounted with the vertical secion pointing up or down. It simply bolts to your vertical surface.

For many additional photos, please visit our  PHOTO GALLERY ("Product Photos" & "Customer Photos" sections).  

ORDER HERE: BKT_Flat-4 - buffed aluminum ($42.00) + Shipping (USD) 

[ABOVE: buffed Al; also available in powder coat finishes]

We offer DISCOUNTS if you order three (3) or more items (mix and match). For a FAST QUOTE fill out our QUOTE FORM . For shipping information click > SHIPPING (Worldwide) .

Solution Graphics

United States Customers: Shipping $16.00, shipping each additional $5.00

Canadian Customers: Shipping $33.00, shipping each additional $6.00

  International Customers: Shipping $49.00, shipping each additional $7.00

ORDER HERE: BKT_Flat-4 - powder coated (5 colors) - please CONTACT US  for a price.

Our standard powder coated colors can be seen at PRODUCT FINISHES  . We can also do custom colors.




BKT-Flat-4S: SHD Flat Mount WITH SO239 Connector

The "Flat 4S" is a super duty flat mount for large HF screwdriver/motorized antennas with a base diameter up to 4", such as those made by Hi Q Antennas ("ruggedized models"), where an SO239 connector is useful to connect the antenna via a short jumper (optional) to your coax PL259 plug. The only difference between the "4S" model and the "Flat-4" is the inclusion of a high quality SO239 connector. The "Flat 4S" is made of 6061 aluminum, is 3.4 inches thick and 9.5 inches long x 4 inches wide. It has a 3/4 inch diamter antenna mounting hole and a 2 inch hole on the other end for bolting to a trailer hitch or front/rear bumper, or to our optional AMB_VMA-4 "L" bracket for bolting the "Flat 4S" to a vertical surface. The hardware is 18-8 stainless steel.

Accessories & Options:

You might also be interested in the following accessories and options that will work with this item. These can be ordered by clicking on the PRODUCT NAMES below, which take you to a detailed description and ordering page for each item. We offer a discount if you order three (3) or more of one or multiple products. For a FAST QUOTE, click > QUOTE REQUEST .

  • SHUNT-100 : weatherproof adjustable HF load inductor for 160-10m, which bolts directly to this mount.
  • SHD-SO239-LA2.0 : a brand new replacement for our SHD-SO239 antenna base.
  • CNCT-PL259-WXQD  : weatherproof quick-disconnect for your coax - unplug your coax neatly if you remove your antenna, without having the plug "dangling in the wind and weather". Use your antenna on another vehicle or fixed- base while you're not operating mobile, or use multiple antennas on one vehicle. Very unique.
  • AMB-VMA-4 : heavy-duty adapter that allows you to attach this mount to a vertical surface.
  • Cables and Connectors  : check out our new listings for cables, jumpers and highg-quality Amphenol PL259 connectors, "the real deal".

Product Photos and Videos:

The following are just a few of the photos that we have on our products, to illustrate some of the key features and installation ideas for this item.

PHOTO BELOW: What you get with the "BKT-4S" - buffed bare aluminum (shown) or five powder coat colors. The hole in the foreground (3/4" dia., 3/4" panel thicknes) is for mounting the antenna. The two 1/4" bolts with HD sholder lugs are for grounding purposes - use one or both as needed. The rear hole (1") is for mounting, using a 5/8 to 1" bolt or trailer hitch ball. Notice the high quality SO239 and nicely machined, rust-proof, SO239 nuts.

PHOTO BELOW: BKT_Flat-4S with the optional SHUNT-100 - mounts to either of the two ground bolts.

PHOTO BELOW: Shows a BKT-4S with a large HF motorized antenna (the "Flat-4S" has an SO239 connector).

 

For many additional photos, please visit our  PHOTO GALLERY ("Product Photos" & "Customer Photos" sections).  

ORDER HERE: BKT_Flat-4-S - buffed aluminum ($53.00)  + Shipping (USD) 

[ABOVE: buffed Al; also available in powder coat finishes]

We offer DISCOUNTS if you order three (3) or more items (mix and match). For a FAST QUOTE fill out our QUOTE FORM . For shipping information click > SHIPPING (Worldwide) .

Solution Graphics

United States Customers: Shipping $16.00, shipping each additional $5.00

Canadian Customers: Shipping $33.00, shipping each additional $6.00
International Customers: Shipping $49.00, shipping each additional $7.00

ORDER HERE: BKT_Flat-4-S  - powder coated (5 colors) - please CONTACT US  for a price.

Our standard powder coated colors can be seen at PRODUCT FINISHES  . We can also do custom colors.




BKT-Sksp-1: SHD Flat Mount for Shakespeare 4245 Spring Base

This is a "super duty" flat mount for the Shakespeare 4245 "military" spring base that fits the Shakespeare whips up to 32 feet long   -AND-  Hi Q Antennas "ruggedized" HF motorized antenna models. This is the same spring base that Hi Q sells on their web site.

The "SKSP-1" bolts to your trailer hitch or bumpler with a 5/8 to 1 inch bolt or trailer hitch ball. It can be mounted to a vertical surface with our AMB-VMA-4  "L" bracket adapter. WIth the optional AMB_SG237-Kit1 you can mount an SGC SG-237 autotuner directly under the mount - makes a great addition to your Shakespeare 16 or 32 ft. vertical in "stationary mobile" configuration! Check out KA4KOE's photos below with his comments!

The "Sksp-1" is made of 6061 aluminum, is 3/4 inches thick, 7 inches wide and 11 inches long. The hardware is 18-8 stainless steel.

Accessories & Options:

You might also be interested in the following accessories and options that will work with this item. These can be ordered by clicking on the PRODUCT NAMES below, which take you to a detailed description and ordering page for each item. We offer a discount if you order three (3) or more of one or multiple products. For a FAST QUOTE, click > QUANTITY DISCOUNT .

  • SHUNT-100 : weatherproof adjustable HF load inductor for 160-10m, which bolts directly to this mount.
  • SHD-SO239-LA2.0 : a brand new replacement for our SHD-SO239 antenna base.
  • CNCT-PL259-WXQD  : weatherproof quick-disconnect for your coax - unplug your coax neatly if you remove your antenna, without having the plug "dangling in the wind and weather". Use your antenna on another vehicle or fixed- base while you're not operating mobile, or use multiple antennas on one vehicle. Very unique.
  • AMB-VMA-4 : heavy-duty adapter that allows you to attach this mount to a vertical surface.
  • Cables and Connectors  : check out our new listings for cables, jumpers and highg-quality Amphenol PL259 connectors, "the real deal".
  • AMB_SG237-Kit1 : mounting hardware and standoffs to mount your SGC SG-237 auto tuner directly below the "BKT", for use with Shakespeare 16 ft. or 32 ft. whip antennas. Check out KA4KOE's photos below.

Product Photos and Videos:

The following are just a few of the photos that we have on our products, to illustrate some of the key features and installation ideas for this item.

PHOTOS BELOW (2): What you get - black powder coat shown (buffed aluminum and total of five colors available). Includes longer 3/8" bolts for the Shakespeare 4245 spring, four 1/4" ground points with HD solder lugs, and high-quality SO239 connector with nicely machined, rust proof, HD nuts. The large hole in the foreground with four holes around it are for mounting the spring base. The rear 1" hole is for mounting the "BKT".

PHOTO BELOW: The AMB_SG237-Kit1 hardware kit with standoffs, for bolting the SGC SG-237 auto tuner directly to the "BKT". This is the exact setup that KA4KOE is using, as illustrated in the photos below. The hardware is 18-8 stainless steel and aluminum (standoffs).

PHOTOS BELOW (3): The next three photos are courtesy of KA4KOE, showing his Shakespeare military spring base with his 32 ft. Shakespeare vertical antenna, and the AMB-SG237-Kit1 for his SGC SG-237 auto tuner. Also shown are his deployed ground counterpoise radials. This is all mounted on a "rise" trailer hitch receiver. This configuration is for stationary mobile, but he is also able to go mobile with a shorter whip extending vertically over his truck bed. His results have been absolutely great! As only one example of his results, Philip's Feb. 3, 2010 email stated:...."Field tests of the AT1011 [BKT-Sksp-1 with SGC kit shown below] mobile hitch truck mount are unbelievably good. I say "KA4KOE mobile", and get nothing but disbelief. Worked the Marconi station KM1CC on 1840 KHZ running 100W from my truck with the 32' whip and 4 radials deployed"....

.

PHOTO BELOW: Note his L-O-N-G 32 ft. Shakespear whip.

PHOTO BELOW: Shows the SHUNT-100  weatherproof HF load inductor mounted to the BKT-Sksp-1. Also note that the powder coated finish has the area around the four ground points masked off to provide a bare aluminum contact for the grounding points - WE PAY ATTENTION TO DETAILS! The SHUNT can be used with the Shakespeare spring base when Hi Q's ruggedized antennas are used on the spring. It is not needed if you use an auto tuner.

For many additional photos, please visit our  PHOTO GALLERY ("Product Photos" & "Customer Photos" sections).  

ORDER HERE: BKT_Sksp-1 - buffed aluminum ($179.00) - powder coated ($199.00) + Shipping (USD) 

We offer DISCOUNTS if you order three (3) or more items (mix and match). For a FAST QUOTE fill out our QUOTE FORM . For shipping information click > SHIPPING (Worldwide) .

Solution Graphics

United States Customers: Shipping $22.00, shipping each additional $20.00 

Finish

Canadian Customers: Shipping $39.00, shipping each additional $37.00

 
Finish
International Customers: Shipping $58.00, shipping each additional $56.00

Finish


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QUANTITY DISCOUNTS & SPECIAL PAYMENTS:

We offer this special payments link for:

  • QUANTITY DISCOUNTS - order three (3) or more of any one or multiple products at the same time, mix and match; click.
  • CUSTOM or NEW PRODUCTS - those that are not shown on our web site.
  • SERVICES - various services that we provide besides antenna products, such as photography, technical manual/instructions preparation, web sites, etc.
  • SPECIAL SHIPMENTS - if you would like your order shipped over night or by another means (we normally use USPS Priority Mail, which ships worldwide in 2-10 days) .

This can be used by United States, Canadian and International customers.

To make a special payment, click > SPECIAL ORDERS.  For information on our quantity discount, or to submit a Quote Request, click > QUANTITY DISCOUNTS 

Thank you.



Please report any problems or errors with this web site, by clicking > CONTACT US . Thank you for reporting problems!