AMATEUR RADIO

 

On  Her  Majesty’s  Service

License To Talk…

   

Tampa-Bay, Florida   E.L.8.7

Barnet, England U.K  G.B.0.1

B I O

Born In North London England in 1969

By The Age Of 6 Y/O I Was Taken Used Electoral Components To Build A Crystal Radios

1981 Stationers Comprehensive Hi School

1988 Employed As A Radio Installer Engineer for 2 way Radios

1989 Repairing C.B Radios From The Home QTH Somewhere In Barnet N. London

1994 Community Systems In North London  B.I.T Level 1 and 2 Certified by 1996

1994 Bought An Amiga Computer Using Work-Bench 1.3

1995 Bought An Amiga 1200HD & Used Work Bench 3.0 Along With Many Music Programs

1995 Built My First PC With 128 M/b Ram 3DFX Card

1996 Me & My Good Friend Alan X Stated Up Our Own PC Repair Service

2000 Moved To The USA

2000 Lived Somewhere In New England M.A

2001 Moved To E.L.8.7 Florida

 To Be Contained…

 

 

_{QRZ call sign lookup:}  

 

We have taken away some of the links as I am fed up the people not keeping there web pages up to date

So we removed them, all apart from the hot links below Hope That the Links

Help you, and please do come back soon, If You Have Any Comments Or Find Any Broken Links Please

Email Us, Thank You

KG4OHH@TampaBay.RR.Com

KG4OHH@TopC.FreeUk.Com

 

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Radio Stores & Misc. Links

All The Links Below Are Click-able

Alabama Radio Co. - Alabama ALF Enterprises - Washington   Alfa Radio Ltd. - Edmonton, Alberta , Canada   Alinco Electronics - Osaka Japan, California   Alpha Delta Communications - Kentucky   Am-Com - Montanna   AMATEUR ACCESSORIES.com   A.R Communications LTD - UK   ARW Amateur Radio Wise - Ohio   Associated Radio - Kansas   ASTRO RADIO - Spain   Austin Amateur Radio Supply - Texas   AVVid, an authorized Kenwood and Icom Amateur Radio Service Center - Texas   Bamcom Communications - Louisanna   Burghardt Amateur Center - South Dakota   Burnaby Radio Communications - BC Canada   BUX Comco - Amateur Radio, MARS, CAP, Antennas, Radios, Acessories - Virginia   C. Crane Company - Communication Excitement - California Cherokee Electronics - Illinois ComDaC Home Page - Michigan Comm-Pute, Inc. - Utah   Communications Specialists - Surrey, England   COMPUTER INTERNATIONAL Armap RadioCom VisualRadio - Michigan   Communication HeadQuarters - North Carolina   Computer Automation Technology, Inc. - Florida Com-West Radio Systems - BC. Canada   Connect Systems - California   CQ Direct - Norfolk, England   DC Ace Electronics, Inc. - Illinois   Debco Electronics, Inc.- Amateur Radio   Denver Amateur Radio Supply - Colorado   East Coast Amateur Radio Inc. - New York   ElectronicsUSA.com: Ham Radio, Electronic Kits & Electronic Gadgets - California   ELKEL., Amateur Radio Equipment Supplies and Service - Quebec, Canada   Essex Amateur Radio Services - England UK   Export Radio Equipment from Express Electronics Incorporated   Great Deals Online - Ham Radio Radio 2000 Ultimate Software Collection! - Illinois   HAM Central   Ham City   Ham Radio Online Commercial Products Directory   Ham Radio Outlet   HamMall's Amateur Radio Home Page - Washington   Hamtronics Commercial, Amateur VHF and UHF - New York   Harbach Electronics   Houston Amateur Radio Supply   IIX EQUIPMENT LTD.   InterFlex Systems - California   JADE PRODUCTS, INC. Homepage - New Hampshire   JC Electronics Ham radio store UK   JPS - The Intelligent Interconnect Company - North Carolina   Juns Electronics - California   JWO Services - Index of Products & Services - Pennsylvania   Lentini Communications Inc. - Conneticut   Link Communications Inc. - Montana   LINK List Server   Lowe Electronics UK England   MARTIN LYNCH AND SONS - London, england   MCM Electronics - Ohio   Muir Communications Ltd. - Southern Vancouver Island, Canada   NEVADA - RADIO - England UK   NSI Communications - Washington   NTF Communications Inc - Alberta, Canada   Patcomm Corp. New York   PCA : Philip Collins & Associates   PCDealer Online - K6PBT Dealer Directory   PRYME Radio Products   R&L Electronics - Ohio   RLS Electronics Arkansas's Only HAM Radio Store!   RT Systems - Georgia   Rad-Comm Amateur Radio - Texas   Radio Amateur Associates   RADIO CITY, Inc. - Minnesota   Radio Control Systems Inc! - California   Radio Devices   RadioShack   Radioware & Radio Bookstore Radio Hobbyist Catalog   Radioworld - Canada   RadioWorld UK   Ross Distributing Co.   S C S - Germany   SHOC Co. - Switzerland   SSB Electronics v/u/shf gear - Pennsylvania   Syncro Australia - Australia   Telford Electronics UK   THE HAM STATION - Indiana   THE RADIO PLACE ONLINE - California   The Raymond Sarrio Company - California   Top Ten Devices - Pennsylvania   Universal Radio, Inc. - Ohio   Vectronics, Inc. - Mississipi   Virginia Ham Radio Supply Inc. - Virginia   V I S Amateur supply - Alabama   Waters And Stanton PLC - Essex, UK   Welcome to Land Air - New York   West Mountain Radio home of the RIGblaster - Conneticut   YV-5 Communications, Inc. - Florida

 

 

 

The Tech Page

So you would like to improvise and make your own

D.I.Y Antennas Have Fun from KG4 OHH & KG4 QOZ Florida, Tampa E.L.8.7

 

But First the Blurb:

Install your antenna properly

1. Always SAFTY !!

2. Proper Tools Must Be Used !!

3. Weather Conductions Must Be Observed !!

The antenna system is the key to reception at all frequencies.
The antenna itself can be very cheap: $2 worth of hookup wire can make a great antenna. It's the installation of the wire that counts. Coax is not magic: it basically works by conducting noise pickup to ground. It is therefore essential to ground the coaxial shield

 Well: fanatics will use two ground stakes, one near the house, one at the base of the antenna, and bury the coax cable in between.  I've experimented with pickup of my computer's 25 MHz clock, and found that ungrounded coax picks up 36 dB more than grounded coax in my setup. That's a factor of 4000 in power!

Keep the antenna itself away from all kinds of utility lines, power, CATV, Satellites dish’s and telephone. Remember that your house is full of this stuff, so keep the antenna away from your house. An "inverted L" run up a tree and then over to another tree works very well Also if you plan to install a beam in the yard or on the roof of your house the above also applies,  if you can, for 6 meter 2 meter and 70 cm’s use a H.T and walk around the yard to find out good pick up points/ Repeater Signals, try a repeater that is far away but you know can hit well even if you have to make a di-pole for whatever band and carry it around with you in the yard with your H.T, this will help you to locate a good line of sight signal and will help you in the long run. 

If using a wire, a matching transformer will prevent the "deaf spots" that you may get at ant resonant frequencies. For an end fed wire antenna, these occur when it is near a multiple of 1/2 wavelength in length). Generally, the longer the wire, the less you'll notice these.

If you want to buy a matching transformer, I like the Model 180 from ICE at (800) 423-2666 or (317) 545-5412

Also posted instructions for winding your own Fancy brand name antennas will perform well if properly installed, but so will simple wires. Spend your money on ground stakes.

An antenna tuner will improve signal transfer from the antenna to the receiver the cheapest one I have found easy to use is the MFJ 945E covers 1.3 Mhz to 54 Mhz this will make a difference in your signal to noise ratio. Also a passive preselector may help with overloading due to out of band signals. At shortwave frequencies, active preselectors a preamplifiers only increase your susceptibility to overload in an otherwise properly functioning system. If a preamplifier helps, there's almost certainly something wrong with your receiver or antenna system, and you'll get better results if you fix that.

(Note that the advice changes at VHF and microwave frequencies: scanner folks may well find that careful matching and low noise preamplifiers are worthwhile. The reason is that the natural noise level declines with increasing frequency, so greater sensitivity can be useful.

I find that the difference in the number of listen able signals between an indoor antenna and a properly installed outdoor antenna is often a factor of ten or more. The difference between a $200 receiver and a $1000 receiver is more like a factor of two in the number of listen able signals, and some find no difference at all

The extra performance of the fancy receivers costs not only money, but knowledge and skill as well as locating an antenna system.

 

Here are some examples:

The 2 Meter Carbon Arrow (144 ~ 148Mhz) 4 Element Beam

 

 

 

70 CM Antenna Examples:

 

The 6 Meter 3 Elements:

 

Reflector = 115 + ½ Inch (Divided by 2)

Driver = 111 Inch             (Divided by 2)

Director = 106 + ½ Inch   (Divided by 2)

This Type of Antenna is a Direct Feed to the Driver Using 50 Ohm Coax

 

 

Home Brew P.S.U

We Built This P.S.U and It Works Well, The Only Thing We Would Recommend

Is Replace The 2N3055’s With A Stronger Type That Can Handle 15 to 25 Watts Each

The 2N3055 Are Rated @ 12 ~ 15 Watts But Threes A Lot Of Heat And You Need To Install A Fan On The

Rear End of the P.S.U Blowing On To the Heat Sink.

Do Not Let 2N3055 NpN Come In Contac Directly To The Case (GND) 

 

HAM Radio Operator's Coax/Feed Line /Cable Table

Dielectric Properties:      P=Poly, F=foam

 

General Exam Study Band Guide

 

 

 

Have Fun

73’s Mark & Gayle