Many military portable antennas use a 5/16-24 thread. Most ham radio and CB antennas and bases use 3/8-24 threads.
The Tape Whip Adapter accepts the military antenna thread and mates to common ham and CB antenna bases. In addition the Tape Whip Adapter has enough clearance to accept the AB-591 spring base so that the AT-271 can be used on common antenna bases.
Most of the military antenna components with 5/16-24 threads have a small piece of plastic inserted into the male thread to make the part self locking. If you experience some torque when installing check for this before you run a die on the threads.
When taking down the AT-271 start at the top so that the spring in the base can work.
Although you can physically combine the P/O AT-892 base and the AB-591, the P/O AT-892 gooseneck is too weak to support the AT-271, it will just fold over.
The AS-2109 uses 5/16-24 thread at all its connection points so the TWA2 can be used at any of them.
The PRC-104 whip antenna socket has 3/8-24 threads so this adapter can be used to mount an AT-271 with the AB-591 on the PRC-104. It also works great as a way to attach an antenna wire to the whip socket. It's smaller than the AB-129 and can easily be finger tightened.
Antenna AN-130 AN-131 AT-271 AT-271 AT-271 AT-272 AT-892 AS-3575 37695-721153-3 37695-518026-1 AS-3683
AS-1320 AS-1321 AS-2109 Radio BC-1000 BC-1000 PRC-8, 9, 10, 28 PRC-25, 77, 104
PRC-6 PRC-8, 9, 10, 28 PRC-25, 68, 77 PRC-68A, 126, 128 PRC-128
SINCGARS PRC-47 PRC-47 PRC-25
Len In 30.5 128 110 110 110 24 29.5 27.5 27.5 36 17 30 180 540 103.5/19 Const. Fish Pole &
Fish Pole Fish Pole Fish Pole Fish Pole Tape Tape Tape Tape Tape Tape Tape Fish
Wire AS-2125telescope Thread 3/8-24 3/8-24 3/8-24 3/8-24 3/8-24 1/4-20 5/16-18 5/16-24 5/16-24 5/16-24 5/16-24 5/16-24 3/8-16 3/8-16 5/16-24 Base loading
na AB-129 AB-591 A3191126-1 na na PO/AT-892 na na na A3140084-1 na na AB-1037
Type na na flexi flexi flexi na gooseneck gooseneck na na na gooseneck na na AB-1036
Len In 2.25 na 7.75 7.75 3.25 na 8.25 8 na na na 9 na na 13" & 3.5" Thread ? na 3/8-24 5/16-24 f13/16-20 na 5/16-18 5/16-24 na na na f13/16-20
na na 5/16-24
I wish to thank Alan Tasker (links, articles) for help in clarifying these terms.
FlexiA "Flexi" base is semi-flexible, and is used to prevent breakage to the long "fishing pole" rigid type antennas. Many antennas, like the AT-271, are fragile, and by using a flexi-base, there is some give to prevent the antenna from being damaged should it encounter an obstacle.
Fishing PoleA "fishing pole" antenna is made from multiple rigid sections that snap together, much like those of a fishing rod. Sometimes these sections are held together with a spring loaded cord (AT-271A for example), and sometimes there is just a central flexible steel cord (AT-271B for example). Some of these antenna types have threaded ends and no central cord, and they screw together (AS-1320 for example).
SpiralA "spiral" antenna is what is commonly called a "rubber duckie" antenna, i.e. flexible, with an internal
spiral radiating element.
These Fishing Pole type antennas were not designed for mobile applications, rather they are for portable fixed application.
The PRC-25 Accessory Kit contains:
accepts MS-116/AB-23 masts and has a standard 3/8 x 24 stud
Rigid construction. The length is needed for the long threads on the MS-116 type mast sections.
accepts 3/8-24 male threads at the top
Stiff Spring protects the AT-271 fishing pole from wind or shock. Without the AB-129 the thin wall tubes in the AT-271 may fold over when stressed.
Shortened Antennas for Portables by Dennis StarksBack to Brooke's Products for Sale, Batteries, PRC-68 Family battery Portrait, Squad Radio DC Power Sources, PRC-68 Family of Squad Radios, Military Information, Personal Home page
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