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LPY2 

 12  

Price: $5.00 
Ramsey Publication No. MLPY915 
Assembly and Instruction manual for: 

RAMSEY MODEL NO. LPY915

 

RAMSEY ELECTRONICS, INC. 
590 Fishers Station Drive 
Victor, New York 14564 
Phone (585) 924-4560 
Fax (585) 924-4555 
www.ramseykits.com 

REQUIRED TOOLS

 

Soldering Iron                         Ramsey WLC-100, 

Thin Rosin Core Solder         Ramsey RTS12 

Needle Nose Pliers               Ramsey RTS05 

Small Diagonal Cutters         Ramsey RTS04 

      <OR> Complete Soldering Tool Set RS64-2801 
 

ADDITIONAL SUGGESTED ITEMS

 

Optivisor Magnifier Headband            Ramsey  OPMAG 

Holder for PC Board/Parts                  Ramsey RTS13, 

Desoldering Braid                                 Ramsey RTS08 

LPY915 LOG PERIODIC ANTENNA 

Quick Reference Page Guide 

   

Introduction ........................................................4 
Antenna Description ...........................................4 
Standard Hook-up ..............................................5 
Building a Corner Reflector ................................7 
Building a Reflector Grid ....................................9 
LPY915 Return Loss Plot ...................................10 
Warranty ............................................................11

 

TOTAL SOLDER POINTS 

 

ESTIMATED ASSEMBLY 

TIME 

Beginner ........... 1.00 hrs 
Intermediate ......   .50 hrs 
Advanced ..........   .25 hrs 

Содержание The `Logi' Log Periodic Antenna LPY915

Страница 1: ...signal into a powerful beam that is 4 times more powerful in the direction you desire Easy hookup to your Receiver or Transmitter Small thin size with excellent broadband performance Solid 6 dB gain...

Страница 2: ...C1 Inductance Capacitance Meter RAMSEY AMATEUR RADIO KITS DDF1 Doppler Direction Finder HR Series HF All Mode Receivers QRP Series HF CW Transmitters CW7 CW Keyer CPO3 Code Practice Oscillator QRP Pow...

Страница 3: ...y Modification 7 Building a Corner Reflector 7 Building a Reflector Grid 9 LPY915 Return Loss Plot 10 Return Loss vs VSWR Chart 10 Warranty 11 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR RAMSEY ELECTRONIC...

Страница 4: ...put impedances and good VSWR characteristics While the log periodic design has been around since the late 1950 s it has now been discovered to be at the cutting edge of antenna development Looking at...

Страница 5: ...the protective solder mask coating on the bottom side center ground trace with a razor Only remove the mask along the center trace not the perpendicular elements Be careful not to accidentally cut the...

Страница 6: ...it passes through the via 12 Visually examine the junction you just soldered and again make sure the center feed of the coax is not shorted to ground Note that using an ohmeter to check you LPY915 an...

Страница 7: ...as the main element versus a simple dipole The following diagram gives a few basic dimensions for an experimental corner reflector The main points to key in on are the base reflector size and the ele...

Страница 8: ...e vertex of the reflector to allow you to slide the boom in and out while testing Once the optimal position of the Logi is set tighten the coupler and your ready to go BUILDING A REFLECTOR GRID Buildi...

Страница 9: ...nylon wire tie at the end of the boom to squeeze the slotted pipe like a vise Wow Simple to make and highly effective If you plan to do the same here is a quick shopping list 1 Ramsey ISM19R or ISM24...

Страница 10: ...0 1 377 30 0 1 065 7 0 2 615 17 0 1 329 35 0 1 036 8 0 2 323 18 0 1 288 40 0 1 020 9 0 2 100 19 0 1 253 50 0 1 006 10 0 1 925 20 0 1 222 60 0 1 002 RETURN LOSS VERSUS VSWR CONVERSION CHART The LPY2 o...

Страница 11: ...be assured that the 1K ohm resistors are actually the missing 10 K parts Hum m m I guess the red band really does look orange Ramsey Electronics project kits are packed with pride in the USA If you b...

Страница 12: ...amsey RTS05 Small Diagonal Cutters Ramsey RTS04 OR Complete Soldering Tool Set RS64 2801 ADDITIONAL SUGGESTED ITEMS Optivisor Magnifier Headband Ramsey OPMAG Holder for PC Board Parts Ramsey RTS13 Des...

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