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LPY2 

 1  

THE ‘

LOGI’

 

LOG PERIODIC 
ANTENNA 

Ramsey Electronics Model No.          LPY2 

Constructed on rugged FR-4 material, it requires no tuning and 
has no fragile antenna elements to break or twist! Covers the 
entire 900 to over 2,500 MHz frequency range.  
Why settle for any old antenna… this little baby “compresses” 
the 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 from 900 to over 2,000 MHz! 

VSWR less than 2:1 - great for transmitters up to 10 Watts! 

Easily mounted by itself or makes a great feed for reflector 
dishes 

Construction ideas for a wideband corner reflector and a 
‘grid’ reflector dish are covered in the manual! 

Very directional - ideal for point-to-point links 

Содержание LPY2

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 f...

Страница 2: ...LC1 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 P...

Страница 3: ...y Modification 7 Building a Corner Reflector 7 Building a Reflector Grid 9 LPY2 Return Loss Plot 10 Return Loss vs VSWR Chart 10 Warranty 11 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR RAMSEY ELECTRONICS...

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: ...al cable such as RG 142 141 and 085 semi rigid will also provide you with a good low loss connection as well as excellent high frequency characteristics Let s take a look at the circuit board for a mo...

Страница 6: ...s are much better than most other parasitic arrays with the same gain rating One drawback of the normal corner reflector arrangement is the fact that the active radiating or receiving element is usual...

Страница 7: ...rror to get things just right Use a piece of PVC pipe 1 2 to 7 8 will work well with a slot cut in the end just big enough to wedge the entire Logi in place The narrow front edge of the circuit board...

Страница 8: ...1 2 to 1 PVC coupler non threaded 1 3 4 to 1 PVC coupler threaded on the male 3 4 side only 1 can of PVC cement 3 4 minimum nylon wire ties 10 0 12 0 Cut a slot into the PVC boom Insert the Logi narro...

Страница 9: ...LPY2 9 LPY2 mounting Boom for a Grid Reflector LPY2 mounted on a Grid Reflector...

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 of...

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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