TECHNICAL INDEX

 

Articles, tips, and technical data will be posted here from time to time. This will be of interest to those who are building our kits and to experimenters in general. Subjects will include circuitry, antennas, and many other topics of interest to the RF experimenter, Amateur, and SWL. Please look here often to see what is posted. You may download any of these articles for your own use. However, they may not be reposted anywhere, or used for any commercial purposes whatsoever without the authors permission. Articles may contain illustrations. These may take a little more time to access. To see articles, click on underlined links. Some files are in PDF format and will require Acrobat Reader. Acrobat reader may be downloaded free of charge from www.adobe.com

 

Last update: 26 June 2012

 

ARTICLE
APPLICABLE KITS
Range Expectations for Small ATV Transmitters
ATV TRANSMITTERS
UHF Construction Precautions
ALL KITS
ATV rejection filter for R/C applications
ATV TRANSMITTERS
Chip Component Installation
ALL KITS
Simple UHF Dummy Load Uses Old Coaxial Cable
ATV TRANSMITTERS
Using CCD Cameras
ATV TRANSMITTERS
How to build a Corner Reflector Antenna
ATV XMTRS & DOWNCONVTRS
Build a UHF Discone Antenna
ATV XMTRS & DOWNCONVTRS
How to make a simple Ground Plane antenna
ATV XMTRS & DOWNCONVTRS  
RF Loss in Coaxial Cables
ATV XMTRS & DOWNCONVTRS  
Frequency Counter Measurement Techniques
ALL KITS
MPX96 and MPX2000 Antenna Considerations
MPX96,MPX2000
MPX96 Programming
MPX96
AM88 Part 15 operation
AM88
AM88 Binary Programming Calculator
AM88
Variometer Loading Coils For LP AM Antennas
AM88
LP AM Vertical Antenna with loading coil
AM88
Simple dipole antenna for 88-108 MHz FM Reception
MPX96, MPX2000
Hum Reduction in LP AM & FM Transmitters
AM88, MPX96, MPX2000
 Possible Health Hazards from ELF Fields
 E-H METER, EARTH RCVR
 Active Antenna mod for SW Portable Radios
 ACTIVE ANTENNA
 Active antenna mod for VLF reception
 ACTIVE ANTENNA, LF CONV
Reduction of Noise Pickup on Active Antenna
ACTIVE ANTENNA
Active Antenna with receivers having no antenna input jack
ACTIVE ANTENNA
 How to build a Signal Tracer and Injector
 GENERAL INFO ALL KITS
 Low Cost IR Filter Material
 GENERAL INFO ALL KITS
Make your own Infrared Illuminator
GENERAL INFO ALL KITS
A UHF Resistive Dummy Load 
ATV TRANSMITTERS
Installing an Outside Long Wire Antenna
GENERAL INFO ALL KITS
4 Band Tuneable LF Converter 9.6 - 535 kHz
 ACTIVE ANTENNA, LF CONV
 Construction of a Vertical Antenna for LP AM Band Use
 AM88
Datasheets for Vintage Radio Coils and Transformers
GENERAL INFO
Making an Electronic Fireplace
FLAME EFFECT CONTROLLERS
Flickering Christmas Candle Display uses ordinary C7 Lamps
FLAME EFFECT CONTROLLERS

 

These PDF Articles appeared in Poptronix Magazine before it ceased publication.
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Subject
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None
Feb 2002
Mar 2002
April 2002
May 2002
June2002
June 2002
Aug 2002
Sept 2002
Oct 2002
Nov 2002
Dec 2002
Jan 2003
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Published Magazine Article Archives

(Ancient History Dept. )

These published magazine articles describe many of the kits originally designed, published, and offered for sale by North Country Radio, and will be found helpful to those needing more information about our current kits. Click on indicated links where available to see the original magazine article.

These articles are as originally published, without warranties of any kind. The articles have not been updated or corrected, and all will contain the original editorial errors in the magazines. They can be viewed or downloaded free of charge, for your own use only. They are all copyrighted material and are not to be reposted or reproduced in any form whatever for distribution or commercial use, without the express permission of the authors. You may print out one copy for your own use. Text articles are in ASCII text, MSword, or PDF format. Scans are generally JPEGs. You will need the appropriate browser plug ins or other software to view these articles.

Some of these articles were published as far back as 15 to 25 years ago. Therefore, certain items offered for sale in these articles may have been long discontinued, and some kits and / or certain parts may be obsolete, hard to find, or no longer available. But the theory and concepts are still valid and the ideas described may be implemented with modern components. Kits and other items that were described and offered in these articles that are still current and available may incorporate price changes, circuit and component changes, and other changes and updates not shown in these articles. Please check our index page for current kit prices, status and availability.

Sorry, we cannot answer questions or about these articles, or give any technical support concerning their use. You are strictly on your own. They are offered as a free resource, as the original print magazines may be difficult to find. article reprints that are scans are in JPEG format.

IMPORTANT NOTE: ALL OF THESE ARTICLES ARE COPYRIGHTED AND ARE THE PROPERTY OF THEAUTHORS AND ARE SUBJECT TO COPYRIGHT LAWS. UNLINKED ARTICLES HAVE NOT YET BEEN POSTED

 

 

 

     NAME or SUBJECT                 MAGAZINE          ISSUE       PAGE
     ----------------------------------------------------------------------

     Build this wireless video         RE             Feb 1986      51
       camera link

     TV Signal Descrambling Pt 1       RE             Jun 1986      47
     TV Signal Descrambling Pt 2       RE             Jul 1986      44
     TV Signal Descrambling Pt 3       RE             Aug 1986      51
     TV Signal Descrambling Pt 4       RE             Sep 1986      54
     HBO Jamming                       RE             Oct 1986      47
     TV Signal Descrambling Pt 5       RE             Nov 1986      46
            ( SSAVI )
     TV Signal Descrambling Pt 6       RE             Dec 1986      57
          (Sine wave desc.)
     TV Signal Descrambling Pt 7       RE             Jan 1987      53
           (Gated Pulse) 
     TV Signal Descrambling Pt 8       RE             Mar 1987      63
     TV Signal Descrambling Pt 9       RE             Jul 1987      58
           (Digital Audio) 
                                                                      
     SCA/FM Stereo Receiver Pt 1       RE             Aug 1987      39
     SCA/FM Stereo Receiver Pt 2       RE             Sep 1987      46

     Video Effects Generator Pt 1      RE             Sep 1987      41
          (Video Palette)   
     Video Effects Generator Pt 2      RE             Oct 1987      48
          (Video Palette)   

     Wireless Stereo Link    Pt 1      RE             Mar 1988      54
      (MPX Transmitter)
     Wireless Stereo Link    Pt 2      RE             Apr 1988      50
      (MPX Transmitter)

     100,000 Megohm meter indicates    Modern         Jun 1988      24
     Static Electricity (Electrometer)   Electronics

     Build this Wireless               RE             Aug 1988      37
      Speaker System (Infrared) 
     
     Build this Carrier Current        RE             Jan 1989      55
      Current Audio Transmitter

     Carrier Current Receiver          RE             Feb 1989      55
      (AM and FM)
     
     Amateur TV Transmitter   Pt 1     RE             Jun 1989      45
     Amateur TV Transmitter   Pt 2     RE             Jul 1989      45

     Low Frequency Converter           RE             Sep 1989      47       
     
     SW Converter                      RE             Oct 1989      49

     Video Scene Switcher  Pt 1        RE             Nov 1989      33
     Video Scene Switcher  Pt 2        RE             Dec 1989      42
       
     Universal Descrambler             RE             May 1990      37
     
     Amateur TV Transmitter            RE             1991 Edtn.    11
       (reprint)                   Exp. Handbook

     Video Scene Switcher              RE             1991 Edtn.   103
       (reprint)                   Exp. Handbook

     Scanner Converter     Pt 1        RE             Feb 1992      42
     Scanner Converter     Pt 2        RE             Mar 1992      41
       (800-1000 MHz)

     Enlarging Light Meter             PE             Apr 1992      31

     Darkroom Timer                    PE             Aug 1992      53
     
     ATV Linear Amplifier              EN             Aug 1992      67
                         
     ATV Downconverter                 EN             Sep 1992      79

     ATV Xmtr  Pt 1                    73             Aug 1992      50
     ATV Xmtr  Pt 2                    73             Sep 1992      50

     Video Master                      EN             Aug 1993      39

     Speech Scrambler                  EN             Dec 1993      37

     ATV Station               Pt 1    EN             Jul 1994      31
     Mini ATV, ATV JR,         Pt 2    EN             Aug 1994      39
       5W ATV Xmtr                       

     ATV station for 915 MHz   Pt 1    QST            Nov 1994      23
       A miniature 1.5 W Xmtr
     ATV station for 915 MHz   Pt 2    QST            Dec 1994      23
       Tuneable Downconverter

     Amateur TV Transmitter            EN             May 1996      31
     (900 MHz Mini)

     Build this UHF Downconv.          EN             Jun 1996      33
     (900 & 1300 MHz)

     LED Thermometer                   PE             Jul 1996      45

     UHF Corner Reflector Antenna      EN             Jul 1996      57

     VHF-UHF Discone Antenna           EN             Aug 1996      47

     440 MHz Downconverter             QST            Oct 1996

     440 MHz 3 CH ATV                  QST            Nov 1996

     ATV Station                       QST            Dec 1996

     Active Antenna                    PE             Aug 1997      48

     MPX96                             EN             Jun 1997      31

     AM88 AM Xmtr                      EN             Jun 1998      39

     Video Palette II                  EN             Jan 1999      29

     Video IF44,IF66,IF70              EN             May 1999      41 

     Electromagnetic Pollution         PE             Dec 1999      38

     EMF Meter                         PE             Dec 1999      28

     RF Field Strength Meter           PX             Jan 2001      33

     MPX2000                           PX             Jul 2001      29
	 
	 The ATV12 MK2                     PX             Feb 2002      31

	 The A.L.P. (Voice IDer)           PX             Apr 2002      26
 

                                WS  Updated  30 April, 2011

                               

      Notes:      EN = Electronics Now Magazine (Formerly called Radio Electronics)
                  RE = Radio Electronics Magazine (No longer Published)
                  PE = Popular Electronics Magazine (No longer Published)
                  PX = Poptronics Magazine(No longer Published)

                       Modern Electronics is no longer published. On Jan 1 2000, 
                  Electronics Now (EN) and Popular Electronics (PE) Magazine merged
                  to form Poptronics Magazine (PX).This magazine went out of business
                  soon thereafter. All these magazines are gone. 
 
                  QST is the magazine published by the American Radio Relay League
                  and is still in publication as of May 2011

 
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