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SECTION 2 – System Overview
This instruction manual contains technical data, installation procedures, theory of operation,
and an illustrated parts list covering the Alpha Multiband Antenna and optional components.
The antenna was designed to be used with HF radios.
Table 1-1 SUMMARY OF AVAILABLE EQUIPMENT
PART NUMBER
DESCRIPTION OF AVAILABLE EQUIPMENT
MTCH-2.1
A capacitive induction matching network in a 316 Stainless Steel
housing fitted for mounting the MLSTK-2.1.XX antenna on
vehicles, shelters, or man-packs equipped with HF radios.
MLSTK-2.1.13
A heavy duty 13 foot long MilStick whip antenna that breaks down
into 13 inch sections and mounts upon the MTCH-2.1, which may
be used directly with HF radios.
MLSTK-2.1.26
A heavy duty 13 foot long MilStick whip antenna that breaks down
into 26 inch sections and mounts upon the MTCH-2.1, which may
be used directly with HF radios.
TRPDLTWGHT-2.1
The lightweight tripod that the MTCH2.1 can mount upon.
TPD-HD-FMJ-2.1
The heavy duty tripod that the MTCH2.1 can mount upon, which
when collapsed can encapsulate the entire antenna system in a
full metal jacket enclosure.
NVIS-2.1
A 25’ element that connects to the top of MTCH-2.1 that is placed
in a sloped orientation to enhance NVIS characteristics.
JWMNT-2.1
The stainless steel Jaw Mount that the MTCH2.1 can mount upon.
GND-2.1
Ground wire that attaches to the
bottom bolt of MTCH-2.1
MSTMNT-2.1
The top of mast mount that the MTCH2.1 can mount upon.
FLDBG40-2.1,
FLDBG30-2.1, or
FLDBG16-2.1
The optional black 600D nylon Heavy Duty Field Bag,
Equipment Description
Physically the Multiband antenna consists of one each of the MLSTK-2.1.xx MilStick whip
constructed of 7075-T9 lightweight aluminum mast sections, MTCH-2.1 capacitive induction
matching network in a 316 Stainless Steel housing, NVIS-2.1 horizontal memory free wire
element with a tensile strength of 500 pounds that is rated for temperatures from -40°C to
+75°C, FLDBGxx-2.1, and at least one of the following TPD-HD-FMJ-2.1, TRPDLTWGHT-
2.1 or JWMNT-2.1 (Ref. descriptions in Table 1-1). The antenna can be transported and
deployment is accomplished in approximately 5 minutes.
Equipment Characteristics
The Alpha Multiband Antenna is designed to simultaneously provide high-angle radiation
(near vertical incidence – NVIS) and low-angle radiation (long-range and DX) propagation.
The targeted deployment variable includes the ability to launch your signal in the opposite
direction the NVIS element is run away from the base of the antenna. Based upon how the
tripod is tilted & NVIS element is deployed, this can provide directional propagation between
0 to 90 degrees above the horizon. While the NVIS element enhances short-range sky
