LATEST NEWS

NEW 49/1 HIGH POWER MATCHING UNITS

AVAILABLE NOW FOR COMMERCIAL & AMATEUR RADIO USE FROM £35!!!!

During the end of 2020 we purchased a mega amount of stock from a business near Portsmouth that went into liquidation. Amongst the stock were thousands of ferrites including genuine Amidon FT240 /43/52/61/31 variants and FT140/114-43 and others all Ni/Zn, we have tried to sell them off in 100 lot batches but no takers so due to so many requests and comments of our commercial quality products we have decided to order various components so that we can produce higher power versions of the 49/1 transformers at an economical price. 

Below: We now have the black versions of the single Amidon core FT240-43 500w and dual Amidon core FT240-43 1000w units in stock and as of today (4/5/21) we also have the Amidon FT240-52 3 core 1500w in the same enclosure.

NEW BLACK ENCLOSURES

Below: The new 3 core FT240-52 versions. Heavy duty M6 rear mount and M6 line strain relief, PTFE SO239 or PTFE “N” socket, 1500w pep ICAS. Weight approx 750 grams. In stock @ £58.00 (PTFE SO239) or £63 for PTFE “N” Type socket. Resin potted.

PTFE SO239 or “N” Type sockets available, all resin potted. Prices from £35 (no resin)

We have over 4500 genuine Fair-Rite Products including: FT114-43: FT140-43: FT240-43: FT240-52: FT240-61: FT240-31 which will be used for matching units and chokes for both commercial and Amateur Radio use.

Above: Single and Dual Amidon FT240-43 49/1 units

1 x Amidon FT240-43 Core 500w ssb/125w FT8 

2 x Amidon FT240-43 Cores 1000w ssb/250w FT8 

BELOW: SPECIAL 3 stack Genuine Amidon FT240-52 resin potted, ground lug, all stainless fittings, condensation vent.

Above/Below: 3 x Amidon FT240-52 cores stacked in a heavy duty ruggedised Hammond RP1175 IP rated gasket fitted enclosure, stainless steel M6 back mounting eye, stainless steel line strain relief, 1500w ssb/400w FT8. PTFE “N” type socket.

7MHz 1.2/1: 14MHz 1.13/1: 21MHz 1.25/1: 28MHz 1.18/1: Or any spot frequency 1.5/1 MAX 2 > 30MHz

COMMERCIAL GRADE KEVLAR WIRE 

4.5mm (45D) dia heavy duty Kevlar commercial grade transmission line, 250 kg breaking strain, 5kw++  pep power handling, heavy duty plaited copper braid with a lower resistance of 28D or 32D versions, approx 500 kevlar strands, this is not ham radio shop quality it is for commercial HF arrays, available for any buyers Commercial or Amateur radio users.

Manufactured by Ormiston of London the Kevlar wire specialists for many years and suppliers to Mil antenna manufacturers. MOQ (Minimum Order Quantity 20 mtrs and only available from us at a bargain price)

Terminating/Dressing Kevlar Wire: Dressing Kevlar wire is very simple, when soldering you DO NOT chop out the kevlar strands like some people suggest, you simply use a good hot 100-150 watt soldering iron and you end up with a perfect termination as below.

1/1 CHOKES

Top of the range: RG142 double screened silver plated PTFE coax on the mega Ni/Zn core in Hammond IP rated gasket enclosure fitted with PTFE SO239 sockets. Whilst the RG142 coax and core are rated at 5KW the SO239 sockets are not. Prices from £25

5kw version PTFE 7/16 EIA sockets available and resin potted

Below: Our super Mega core at the side of an FT240-43

Various models and sockets available, SO239/BNC and “N” type, RG142 (5kw) of which we have several 100 mtr drums, RG303 (PTFE Coax 2kw) or RG316 (PTFE coax 400w)

MORE NEW CORES MADE 

A MAJOR BREAKTHROUGH IN PERFORMANCE AND COST

500 Custom made Ni/Zn F14 material cores have recently arrived, tests indicate a fantastic test sweep for 50 watt spot frequency or resonant multi frequency end fed antennas 3 > 30MHz incorporating Hybrid variants of the 49/1…………..these are now available as a complete resin potted unit BNC, “N” or SO239,  “a major break through in reducing costs and getting better performance with just 0.5db insertion loss (0.3 db after further tests)”. Samples were made and resin potted with fantastic results. Samples are available for commercial users in either a 49/1 for spot frequencies or 2 Hybrid versions for 3 to 18MHz coverage.

Using these new cores means that the HF spectrum can be easily modified for commercial users requirements

*New Commercial Day-Night Units

Need Kevlar Wire? Ormiston Wire Company

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COMMERCIAL NEWS:

New Universal Antenna Vehicle Mount

A mobile mounting system that will fit ANY vehicle and hold ANY antenna without drilling holes. Innovative dual suckers capable of supporting any HF antenna, fitted with bracketry to accept any HF or VHF antenna, the bracket can be adjusted in a vertical or horizontal plane for roof mounting or side panel mounting. Can be placed on any vehicle flat surface including steel, fibre glass and alloy in seconds. Earth bonding strap and coaxial feeder included. Many antenna socket options available including 3/8″, SO239, BNC etc.

Single or Multi Frequency Matching units for HF:

NO TUNER REQUIRED

Our NEW ultra low cost high quality COMMERCIAL matching units consist of single, dual, tri and quad cores, some of the cores are custom made and all wound with PTFE DEF STD 210 wire, matching/insertion loss is very low at around 0.5 db MAX. The cores are fitted into a UV protected enclosure that is resin potted, the enclosures below are custom made and IP68 rated. We offer SO239/BNC/TNC or “N” type sockets. Power levels up to a maximum of 125 watts pep (this is what the commercial radios are capable of) although we do manufacture higher power levels for special orders. Top quality, low cost and no compromises, stainless steel line and mounting supports. Heavy duty lightweight enclosures and heavy duty high power units, we can manufacture single frequencies, or multi frequencies or ranges between 3 to 18MHz to suit your requirements for day/nightime operations.  MOQ POA.

New IP68 rated UV protected enclosures with stainless steel fittings

Commercial sales only: MOQ

New IP68 rated UV protected enclosures with stainless steel fittings

A large range of power options are now available using single, dual and multi core custom made ferrites as below, these units have been extensively tested for many hours using ALE, DATA and SSB transmissions.

New mix cores Ni/Zn F14 types

NEW DAY – NIGHT UNITS

NEW DEVELOPMENT: Single or multi core (depending on power requirement) silver plated PTFE wound hybrid matching units, 2 models for day or night time operation, uses single 25 mtr line with near flat response over 7 to 18MHz and 3 to 14MHz @ MAX 0.5db insertion loss, commercial quality, SO239/BNC/”N” sockets, IP68 resin potted enclosure, 50/125/200/400 watt pep versions, stainless steel back support hook, stainless steel line strain relief, spring loaded connector. These are the 1st batch of samples in the IP68 rated enclosures made for overseas commercial users. Models HFD (7 to 18MHz) and HFN (3 to 14MHz). Commercial sales only: NO TUNER REQUIRED, LOW COST, MOQ

ABOVE: New hybrid multi core unit offering superb matching for day/night operation on commercial frequencies. 0.5db loss @ 3 > 14MHz and 7 > 18MHz. 50 Ohm matching

ALL UNITS ARE FOR COMMERCIAL SALES ONLY: MOQ

2 New models HFD and HFN

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Custom made RG316 PTFE Coaxial leads to BNC/”N”/PL259/SMA

New! Commercial mini matching units, can be built/supplied for 3 > 18MHz wideband (see sweep above) or just as a 49/1 single/multi frequency unit, ultra light at just 100g, fitted with mini BNC or SMA sockets, dual, tri and quad core versions rated at 50 w pep, resin potted, leads made up with RG316 PTFE coax. Superb for QMac units. Prices from £150.00 including coax leads.

Overseas commercial sales only

New commecial enclosures arrive, resin potted, PTFE BNC, SO239 or “N” type sockets, UV protected, new lower price, and the highest quality.

THE ABOVE UNITS ARE FOR OVERSEAS COMMERCIAL SALES ONLY: MOQ

Commercial enquiries email please use sales@rfcomms.co.u

or email:g4icd@btinternet.com

COMMERCIAL ENQUIRIES WELCOME:

CLEARANCE ITEMS

Various matching units for HF (3 > 30MHz) and VHF (30 > 80MHz)

ICOM BLOG UPDATE

Non commercial activities: Yaesu FTDX10 arrives and DC invertor news

Contact us HERE