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PLEASE NOTE THAT ITEMS ON THIS PAGE ARE FOR COMMERCIAL OVERSEAS HF USERS ONLY:

EXPORT DOCUMENTATION MAY BE REQUIRED:

Although retired from HF Overseas Commercial work the market still exists and still needs suppliers. There are many Tenders and RFQ’s circulating in the industry.

COMMERCIAL PRODUCTS FOR OVERSEAS HF USERS ONLY

EXPORT DOCUMENTATION MAY BE REQUIRED:


PAST COMMERCIAL PROJECTS

A selection of commercial projects as supplied to many Overseas HF users

HF 6MHz Aeronautical Hi-Power Matching Unit. Tri-Core Amidon FT240-52. Marine stainless fittings. Heavy duty UV protected reinforced GRP IP68 resin potted enclosure. Ground Lug. PTFE “N” type socket.

BELOW: The “REAL” GUANELLA CURRENT BALUN

High or low power TRUE Guanella 4/1 current baluns using 2, 4 or 6 cores. Superb matching and RL 36db terminated at 200 ohms.

Resin potted. “N” socket. Ceramic insulators. Stainless steel mounting and strain reliefs. IP68 UV protected enclosure.

Superb construction and unbeatable matching performance

Re-furbished MEL HF Antenna Tuning Units

Custom made matching units. PTFE wire in PTFE Sleeve, many different configurations to suit your requirements

Lightweight compact field units for single or multi frequency use

Manpack kits for end users of HF Commercial Radios: Special 4 to 18MHz versions 50 ohm: 125 watt pep: 0,3db insertion loss: VSWR max 1.3/1: NO TUNER REQUIRED: Kevlar based wire 25 mtrs long: Stainless Steel fittings: 4mm thick wall black enclosure: Heavy duty poly insulator:

Tactical HF Kevlar Manpack kits for HF90 Radio

HF & VHF Kevlar Tactical Kits

Heavy duty 4.5mm dia Kevlar line, 5kw, 500 strands of fine kevlar, heavy duty weave, 250kgs breaking strain, “The finest Antenna wire for the Commercial user”.

Helical HF Loop 4 to 18MHz: No tuner required: Very low insertion loss:

The real and only way to make a 4/1 Guanella Current Balun, dual individually wound cores, if it uses a single core it is a voltage balun as it has one side directly connected to the rf socket earth connector. The Guanella current unit has 2 independent lines and can be fitted with  tunable ferrite wound coils to balance the lines if required, the Guanella BALUN also offers substantial RF return choking attenuation which eliminates a 1/1  choke at the antenna feed-point. A 1/1 choke can still be fitted at the Transmitter feed-point which will reduce noise picked up by the feed line.

4/1  CURRENT baluns. PTFE wire wound: RL = -32db

Special 4 core Guanella Current Baluns for DF Systems

Mil Spec Tactical Matching units for HF Comms 2 > 30MHz and VHF 30 > 70MHz

In House Propagation training for HF/VHF called

“From the Ground Up”

An in depth day training program for communication Officers, NGO’s and MOD OPs: 

Past presentations in Vietnam/Malaysia/S Korea/Thailand/Singapore/Japan/The Gambia/Ghana etc

High Power custom made VHF/UHF Chokes

Our commercially designed 1/1 common mode chokes using custom made Mn/Ni cores and RG303/RG142/RG316 PTFE coax to reduce returned RF and noise on the feed line.

Custom made Ni/Zn cores which we wind with PTFE wire for spot or multi frequency use.

2/1: 4/1: 6/1: 12/1: 24/1: 49/1: 64/1 and other variants for customers requirements both Voltage and Current versions