RADIO PROJECT PAGES
This is the MAIN RADIO MENU PAGE
Press HERE to return to the "Radio Page"
There is now a " FOR SALE " page click HERE to enter
have visited this page since, 6/2/99
TO PRINT OUT PROJECTS, FIRST LOOK AT THE PRINT
INSTRUCTIONS ON PRINT PAGE.
PRESS THE BUTTON TO LOOK AT THE PRINT PAGE
If you are looking for Radio Mods? then the button below will take you to an
excellent site dealing with all major Radios, and some not so well known.
FOR RADIO PROJECTS, PLEASE CONTINUE TO SCROLL DOWN
The first Project is a 600w 50mhz Solid State Amplifier,
there are 17 pages in total and I have done them in black and white so download time is kept to a minimum. This design is a direct copy of G3WZT John Matthews, and is reproduced here as shown in the "Rad Com" which is the magazine of the Radio Society of Great Britain so all credits must go to G3WZT, and to the R.S.G.B.
Press to go to the first page of the 600W Amp.
Press to go direct to the 600w menu page
A Power Splitter For 70cm,
This Project is a direct copy of G8EUX and is taken from the Rad Com, the Magazine of the RSGB, there are only two pages to this one.
Press to go to the first page of the 70cm Splitter
Circuit for Phasing out Interference,
From Pat Hawkers "Tech Topics" Taken from Rad Com, the Magazine of the RSGB
Press to go to the first page of the Phasing Unit
LOW COST CHOKE 1:1 BALUN
Make a good Balun from bits of scrap pvc piping, wire wool, and some eye bolts !!
Press to got to the BALUN Project
Wavemeter for Two and 70cm
A nice Project by Sven Weber, G8ACC, Taken from Rad Com, the magazine of the R.S.G.B. there are 2 pages to this one
Press to got to the first Page
FILTERS AND FERRITE'S TO STOP E.M.C.
An explanation on EMC, and projects on how to build Filters to stop TVI. taken from Rad Com, and written by David Lauder, there are two pages to this project
Press to go to the first "Filter" page
Metal Fatigue and Antenna Elements,
Not really a project, but an interesting article as to why antenna elements can break off in the wind, together with tips on how to stop it happening. taken from "Rad Com"
Press to go to the "Fatigue" page
Cant connect on Packet Radio ? then read this,
An interesting bit about Deviation, what it means, and how to change it, well worth reading as it could save a lot of problems with Packet.
Press to go to the "Connection" page
Need a 15m Antenna but cant afford it ? well you can now !!
Great antenna made from a "bean can" and copper tube.
Press to go to the "bean can antenna"
Full Power 80 - 10m Grounded Grid Linear
Nice project for the winter months, but not for the faint hearted, it works very well and I have seen it in action giving good results.
Press to go to the "80-10m Linear"
A Simple but Sensitive RF TEST PROBE.
No station should be without one of these, this one could be built into a Fat Ball Point Pen.
Press to go to the "Test Probe" page
40 AMP POWER SUPPLY UNIT.
All the power you need for those Radios, and quite straight forward to build
Press to go to the Power Supply page
REMOTE ANTENNA SWITCH.
Unit for powering mast head pre-amplifiers
Press to go to the Remote Ant, Switch
Big Beam, Mast-to-Boom Hinged Bracket
An easy to make "answer" to the problem of lowering the mast down when you have a Big Beam at the top
Press to go to the "Bracket" page
TIP, If you use a 4CX350 "F" VALVE IN YOUR LINEAR,
BUT CANT GET A SPARE ONE, Then remove the two wires from the HEATER pins on the bottom of the valve socket and make sure the ends are insulated for safety, next solder two new wires to the HEATER pins and lead them outside of the case to a 6v Transformer (ac) The current drain is minimal so something like 3 / 4Amp will be plenty, and have some to spare, By doing this, you will now be able to use the 4CX350- "A" OR "B" Valve, exactly the same output, but a lot more easy to find. (Note: "F" uses approx. 27 Volts, "A" "B" uses 6Volts)
2Mtr PREAMP FOR RECEIVING
A nice little project to build for your receiver / scanner
Press to go to the Preamp page
Loop Antenna for Car Roof
Antenna for those mobile H.F. days, without all the hassle !!
Press to go to the Loop Antenna page
SWR Meter for QRP work, Very Sensitive
An easy to build meter giving good results
Press to go to the swr meter page
DIPOLE CENTRE INSULATOR
Need something to fit in the middle of a Dipole ??
this is the way to do it, and its easy to make too.
Press to go to the Dipole page
Variable Power for Kenwood / Trio Transceivers
Very simple unit to adjust the power output to these radio's
Press to go to Adjustment page
Four Band Upper and Outer Antenna !!!
If you cant erect a high antenna, then this may help you.
Press to go to Antenna page
Vertical END FIRE Antenna Array
A nice easy to make end fire antenna giving good results
Press to go to antenna page
Vertical Omni 2mtr Slim Jim
Well proven design for a 2mtr Omni antenna
Press to go to Omni antenna page
Folded Collinear for 2mtr and 70cm
A nice project for a two band antenna
Press to go to duel band antenna
Active Antenna for H.F. Receiving
Give your H.F. receiver a boost
Press to go to antenna page
Another nice easy antenna to make, gives good results
Press to go to windom page
BNC. to PL 259 Adapter
Worth its weight in Gold !!!
Press to go to Adapter page
Nicad Charger for the radio, from the car
Handy little Project that can save a lot of hassle from the radio batteries
Press to go to charger page
A Novel "Filter" for satellite working
Not really a project, but a very good "tip" to stop desensing of antenna's at satellite frequencies
Press to go to the "TIP" page
LOTS MORE THINGS WILL BE ADDED SOON, PLEASE CALL BACK AGAIN
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