Accessories for HF mobile antennas

You will find more antenna base mounts here.

On this page you will find:

• Couterpoise Magnet Mat
• Triple magnet base
• Heavy antenna base
• Heavy sping
• Medium Spring
• SGC base mount
• Quick Disconnect
• Trunk lid mount
• Mounting bracket
• AHK-Fuß

Couterpoise Magnet Mat

MAT-50 Magnet mat

Magnet mat as couterpoise for HF mobile antennas

Every shortwave mobile antenn requires a good and reliable counterpoise. But with some installations that's hard to achieve, for example when using a clamp on the roof railing or when using a small magnet base.
This problem can be solved with the new magnet mat from Diamond. Just put the mat on a flat surface on the car and connect the included wire to the antenna base.. Due to the large capacity between mat and chassis metal the HF resistance is greatly reduced. When operating on 3.5MHz two of these mats are recommended. When operating on 50MHz the connecting cable should be as short as necessary (less than 20cm).

Technical data:

• Frequency range: 7 to 50MHz (3.5MHz with two mats)
• Max. Power: 500W (SSB), 200W (FM,CW)
• Adhesive force: ok up to 110km/h (without wind)
• Size of mat: 80 x 195mm
• Length connecting cable: 30cm
• Weight: 55g
• Accessories: 16mm ring, heat shrink tube

Triple magnet base

For heavy HF antennas with 3/8" thread or PL connector

Sparepart: Rubber cups

Set of 3 rubber cups for 11115.xx magnet base.

Diamond K-3000 Triple Magnet Base

Diamond K-3000

Triple Magnet base Diamond K-3000. With three strong magnet with 85mm diameter each, without coax sockwet, without cable. For installation of the Diamond cable harnesses, or for your own construction with a PL or N socket. The central hole has a diameter of 16mm, the four mounting holes around the central hole have a distance of 23x23mm. Weight 1.5kg.

Heavy antenna base

For antennas with 3/8" thread. Tiltable by 90°, suitable for cables like RG-58 or RG-213.

Heavy mast clamp 'Jaw Mount'

Jaw Mount

Very versatile clamp for installation of anyy shortwave antenna with 3/8" mount (MP-1, Chameleon, Outbacker and many more). The 'Jaw Mount' clamp has one isolated 3/8" socket with PL connector for the cable, the other 3/8" mount is intended for the second side of a dipole or for installation of radials or a counterpoise. The 'Haw Mount' clamps spans masts up to 55mm diameter, or any other vertical installation like a balcony railing, a broomstick, a fence post or what ever you will find for installation of your antenna.

Jaw Mount

Heavy sping

Chrome plated spring for heavy HF antennas

Medium Spring

with 3/8" thread

SGC base mount

Heavy base mount for all antennas with 3/8" thread. Solid base plate with tilt/swivel base with integrated spring. Suitable for use with automatic antenna tuners like SG-230 etc.

Quick Disconnect

Quick disconnect for shortwave antennas with 3/8" thread.

Trunk lid mount

3/8 inch trunk lid mount

Special version of the Diamond K-400 trunk lid mount with 3/8" connectir, suitable for heavy mobile antennas.

Mounting bracket

Universal mounting bracket, stainless steel.

Balcony railing mount for 3/8" antennas

Montagewinkel 11104

Aluminium bracket for installation on a mast, lamp post, railing... 45cm length between mast center and antenna. Includes two U bolts for max. mast diameter 45mm. Install any antenna with 3/8" thread (MP-1, Chaneleon, Outbacker etc.), an isolated mount with 3/8" socket and PL female socket is included (Article 30016).

Socket PL - 3/8" (Art. 30016)

Socket PL - 3/8" (Art. 30016)

Trailer Hitch Mount

Especially long antennas can't be mounted safely on the top of the car because that would violate the max. allowed height. And the sheet metal might not be solid enough...

The massive aluminum mount is installed on the trailer hitch and fastened with two large screws. The top surface has drill holes prepared for the 3/8" mount Order No. 11106 (not included). With the large surface area the trailer hitch mount has a good ground contact to the car.
Of course this mount is also suitable for cars with aluminum chassis, where magnet mounts cannot be used. Please observe the local vehicle and traffic regulations! Use while driving is not permitted AFAWK.