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Coaxial lightning arrestors for frequencies above 50 MHz use the same technology as lower frequency units described above and are all constructed in our standard arrestor housing.  M-302U is for terrestrial repeater or point to point services, commercial broadcast or cellular applications, long distance scatter, EME, etc. Each unit includes high voltage blocking between input and output ports with antenna side of arrestor connected through near dead-DC short inductor to ground(case), draining center conductor of earth connections.

 

Models Available:            

M-302U, 1kw, UHF connector, 40-1000 MHz                                                                               

M-302N, 1kw, N connector, 40-1000 MHz      

M-304U, 3kw, UHF connector, 50-500 MHz    note:  ships direct from manufacturer

M-304N, 3kw, N connector, 50-500 MHz         note:  ships direct from manufacturer

M-306N, 1kw, N connector, 100-1000Mhz      note:  ships direct from manufacturer

Like no other protective device in the world for RF coaxial cable lines, Morgan’s M-300 Series arrestors offer a complete, nearly perfect blocking/shunting system for induced voltages. Whether produced by lightning (directly or indirectly coupled), wind, rain, or snowfall MMI arrestors are continuously active, constantly draining transmission line center conductor to ground. The result? Solid protection for station equipment and related noise.

All M-300 Series units feature heavy discharge toroidal inductors used to neutralize developed voltages on the antenna side of a central high-voltage blocking capacitor. Inert gas tubes are used to limit the natural back-EMF voltages often induced across an inductor when large fast rising input currents are presented to the unit.

Sold and used worldwide, our arrestors are the first line of defense in lightning protection employed by such services as the U.S. Army, Boeing Corporation (Commercial Airplane Division), AT&T, NASA, and a wide variety of Commercial Broadcast, Public Safety, Emergency Relief, Government, and Amateur interests. Our arrestors can be found in the most stark surroundings, from dense African jungles to the vast wastelands of some of the world’s most punishing deserts. You can even drive a truck over the top of the chassis without damaging the contents (actually, you can do that to most MMI products).

Available models cover the frequency range from as low as 100KHz to 1,000MHz. with lots of connector choices. All units feature Teflon connectors. All may be mounted on flat surfaces, grounding bulkheads, or through-mounted using dual stainless steel grounding screws for mechanical fastening. Packaged with an informative owner’s manual.  The arrestors are approx 3X3X2 inches.

Models Available:                                                                                                    Price:

M-300U, 1kw, UHF connector,   .1-50MHz                                                                                                  $52


M-301U, 1kw, UHF connector,    1.5-50MHz                                                                                               $52


M-303U, 8kw, UHF connector,    1.5-50MHz                                                                                               $59


M-303N, 8kw, N connector,      1.5-50MHz       note:  ships direct from manufacturer                          $63

Models Available:                                                                                                   

M-309, Balanced line arrestor                                                                                                        

For transmitting or receiving applications using open-wire fed systems in parallel balanced lines, these arrestors use our patented technology in larger housings with insulated terminals. These units are constructed in metallic aluminum chassis cases.

Model 309 is designed for use with open wire balanced feed systems. It is compatible up to it’s design power rating with a wide variety of input impedances / reactances ranging from about 300 ohms to 600 ohms  Like all arrestor protection units these circuits are designed to be ground-mounted and should be installed close to earth entry point connections for best results.  Compatible with both split capacitor type antenna tuner and balun output stages common in modern antenna tuning products.

All units use torroidal inductors and present near dead DC short on antenna side of arrestor, constantly draining feedline wires of static and any developed voltage potential feedthrough breakdown voltage from input ports to output ports 4,000 to 6,000 volts. Arrestor units may be placed anywhere in the feedline at ground level without serious change in tuning, but small change may be detectable due “to small” increase in total feedline length caused by size of arrestor case & circuit.

Models 308 and 309 series all rated for frequency range 1-30 MHz, non-DC continuous through ports, polarized.  Units 308 & 309 are constructed in aluminum cases measuring (HWD) 11/2″ x 2″x 3″. Units include a 3 page owner’s manual.

Morgan Manufacturinghttp://www.morganmfg.us/

Morgan Manufacturing is now the provider of the legendary I.C.E. products!  Morgan Manufacturing Inc. was formed in 2005 as a subcontractor for I.C.E., which had a 20-year history of building quality lightning and filtering equipment and accessories for the communications industry.  With the untimely passing of the founder of ICE, Mike Koss (W9SU), Morgan Manufacturing Inc. (MMI) is carrying on the quality reputation of the ICE line and will be able to provide many of the products that professionals and amateurs have come to know.  More Morgan products than listed below are available; email me for information.

Unshielded control line conductors used to operate remote switching operations, antenna rotators, and home weather stations are easily charged to thousands of volts potential referenced to ground by overhead lightning discharges, frequently causing severe damage to equipment. In the RF transmitting environment, these same leads often couple into transmitted energy and re-radiate signals at ground level, resulting in interference to nearby equipment tuned to other services.

Model 348 solves both problems in one convenient unit. Easy to install and virtually permanent, this suppressor shunts RF currents and voltages over 50V directly to facility ground terminal connection.

Installation is a breeze and takes only a few moments. Each wire (up to 8 conductors on standard models and 12 conductors for the B models) entering from rotating unit or switch box may be attached to any of the 8/12 insulated terminals on the side of the unit. The same wire then continues from that connected point onward to control box destination. Connect the metal case to a ground rod or system and you’re all set. May be used indoors or outdoors, designed for flat surface mounting, includes stainless steel grounding terminals.

Uses metal oxide varistor devices, AC or DC voltage rated, ceramic high-capacity RF bypassing components.  Comes with owners manual.

Models Available:                                                                                               

M-348, Rotator line/remote switch                                                                                         

M-348B, Rotator line/remote switch

NEW!  90˚ mounting bracket for M-348 units, rotates unit so terminal strip is facing up. 

Makes wiring duties much easier; comes with hardware to mount unit to bracket.                                                                                                         

Great protection for your SteppIR control lines!

Most modem electronic equipment devices are subject to interference from electromagnetic signals and noise entering via AC line power cords. DVD and Video cassette recorders, television sets, consumer audio gear and many telecommunications products are now being constructed with transformerless power supply technology, making each piece more sensitive than ever to line variations and interference. AC line filters offer an inexpensive alternative to the risk and unpleasantry of dealing with many types of line problems. MMI’s line filters are a complete package of inductive isolation, over voltage control, capacitive decoupling, and interference control of both common mode and differential mode signals across a broad frequency spectrum range. Several models offer currents to 40 Amps and up to 6 plug-in outlets.

Filters are constructed in a tough, single piece heavy chassis measuring 4″ square, and each includes 6 foot molded line cord, fuse (replaced if necessary from the outside), and stainless steel ground terminal. Models for 120VAC are outfitted with General Electric triple tap outlet so that 3 or 6 cords may be plugged into the unit, 2 or 3 wire versions available.

All are designed for flat surface mounting and may be used with or without ground terminal connection. Performance improves if local ground connection can be made and if distance from filter body to ground is kept short.  Each unit is packed with a informative owner’s manual and an extra fuse.

Models Available:                                                                                                 

M-475-3, 120VAC, 50/60 HZ, 25 amp,  3 outlets with ground, 3 prong cord.                            

M-473-3, 120VAC, 50/60 HZ, 40 amp,  3 outlets with ground, 3 prong cord.                            

Modern television and FM stereo systems are the most delicate ever built and can be easily damaged by voltage transients delivered by outside antennas or commercial cable systems. Cable companies offer little, if any, lightning protection and are not responsible for resultant damage when it occurs. Model 310, 311, 312, and 315 offer do-it-yourself protection and easy installation in just about any home or institution based system. Each is completely shielded and constructed in an aluminum case for indoor/outdoor services. The only other installation requirement is a ground rod earth terminal connected to the chassis.


Model 315 employs hybrid circuit of both gas discharge device and metal oxide varistors for fast attack speed, DC voltage passive up to 50 volts non-polarized, screw-in “F” connectors standard Frequency range 900-1500 MHz, 75 ohms impedance.

Other Morgan units available upon request.

Models Available:                                                                                                

M-315, UHF/VHF/CATV, 75 Ohms, 900-1500 MHz                                                                 


                                  

MMI’s model M-330 is a structural protection assembly that offers transient and overvoltage protection throughout the house or structure to items connected on the AC power lines connected through circuit breaker protection to the main incoming electrical panel. This unit requires only simple wire connections done in about 5 minutes time. Once installed unit provides diversion to incoming high voltage wavefronts by attacking transients and providing a safe leakage path to ground for the duration of intermittent spike events occurring to power lines outside the facility. The unit is inert during normal operation but provides filtering of electromagnetic signals which often cause noise and interference to household electronic equipment. Circuit is a hybrid design utilizing gas discharge and metal oxide varistor technology with bypass devices for RFI / noise filtering. Maximum 60,000 Amp fast switch capacity. Case is at ground potential and safe to handle anytime. Housing is standard MMI heavy chassis, fully shielded, burst-proof design.

Models Available:                                                                                            

M-330, AC Power Main, Single Phase 120-0-120VAC (3 wire)                                           

Unshielded telephone wiring is very susceptible to natural and man-made interference as well as over voltage influence. Modern solid-state telephone equipment, computer modems, telephone patches and interconnection equipment and DSL modems are all easily damaged by fast rising transients caused by lightning discharges and electromagnetic fields.

Model 340 Series suppressors/filters are combination multi-stage units that isolate telephone circuits, providing hybrid dual-action voltage protection with gas-discharge and metal oxide component, and noise/RF filtering by twin-stage decoupling bypassing. May be installed indoors or outdoors at telephone line junction connections to building entry, for overhead or buried lines.

Measuring (HWD) 1 1/2" X 3" X 3", models are available for direct hardwiring with screw terminals or all modular. Both are 4-wire and designed for one or two line services, polarized (input and output), work with any telephone brands or models. Ground terminal connection required to nearby ground rod or earth electrode. Units are fully shielded assemblies in standard Morgan Mfg. heavy chassis, packed with 4-page owner's manual. Weight 1 pound.

Models Available:                                                                                                 

M-340 Telephone Line Protector, w/screw terminals                                                                

Penetrox-A anti-oxidant connection grease.  For all aluminum to aluminum and aluminum to copper connections.  Prevents oxidation, corrosion and improves conductivity between arrestors and copper (or aluminum) sheet.  Also great for antenna element construction.  Available in 2oz. and 8 oz. containers.

Models Available:                                                                                              

Penetrox-A, 2 oz. container                                                                                                   

Penetrox-A, 8 oz. container                                                                                                    

Models Available:

Clamps for Morgan surge protectors

Attach two Morgan Manufacturing surge units to your ground rod.  A perfect way to ground your vertical antenna and provide surge protection on outgoing coax lines at the same time.  Clamps can also be used as a quick and easy “single point ground” before cables enter the building.   Clamps are made entirely from copper and and secure with stainless steel hardware and nylock nuts.  Includes hardware for Morgan unit(s) too!  Designed for 5/8” ground rod (see ordering instructions above).  Click pic for larger version.  Only fits M-300, M-301, M-302, and M-303.

Price:

$55

              online  reviews

                      MORGAN MFG. ARRESTORS

All Morgan Mfg. arrestors can be pre-installed in KF7P Entrance Panels and shipped ready to go for a complete, ready to use system.  Email for more details, Chris at KF7P dot com. 

HF Arrestors, coaxial
VHF Arrestors, coaxial
Balanced Line Arrestors
Rotator / Control Line Arrestors
AC Line Protectors
VHF, UHF, and Cable TV Arrestors
Whole House Protectors
Telephone Line Protectors
Penetrox A  Anti-Oxidant Connection Grease
Ground Rod Clamps for Morgan Manufacturing Surge Protectors

NEW!!   

User Reviews:  What are other hams saying about these products?

Chris provides a great product at a great price, surprisingly low shipping costs, and awesome customer service! I'm very glad I found this website, and Chris has certainly added another loyal customer!  [M-302N unit above-Ed.].

Thanks again, Mark KF5VQY


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$52

$54

$59.80

$62.40

$70.20

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$59

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$64.40


$92.84


$  8.00

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$85


$98

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$52

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$80

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$58

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$4.95


$12.98

I wanted to let you know I received the AC line Filter yesterday, thanks.  I plugged my new noisy refrigerator into the new filter and it worked - it removed the hash interference I was receiving on the 40 meter band.  40 meters is my favorite band for listening so it’s great to have it clear again!


*****

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Before and after pictures of an M-303u coaxial arrestor that was damaged by high SWR and an amplifier while tuning up.  This was received and replaced with a new unit the same day, typical of repair service from Morgan Manufacturing, which carries a LIFETIME warranty on all products.