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VHF 80MHz-160MHz FrequencyCounter                            4S6GGS                            In My design use LC7265 and...
VHF 80MHz-160MHz Frequency CounterIn My design use LC7265 and LB3500 prescalerDisplay Range High order 1 digit zero blank ...
VHF 80MHz-160MHz Frequency CounterFM IF selectFIF1 (11pin)      0     0       0       0      1        1        1      1FIF...
VHF 80MHz-160MHz Frequency Counter      4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
VHF 80MHz-160MHz Frequency CounterPCBH x 45.53mm               W x 55.1mm              4S6GGS – Gayan E mail – 4s5gs.gayan...
VHF 80MHz-160MHz Frequency CounterC1 –C5 - 10uF          R1 – 4.7k                      U1-LC7265C2 - C4 - 22p          X ...
VHF 80MHz-160MHz Frequency Counter      4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
VHF 80MHz-160MHz Frequency Counter      4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
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frequency counter

VHF 80MHz-160MHz Frequency Counter
4s6ggs

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frequency counter

  1. 1. VHF 80MHz-160MHz FrequencyCounter 4S6GGS In My design use LC7265 and presaler LB3500www.4s5gs.gayan@gmail.com
  2. 2. VHF 80MHz-160MHz Frequency CounterIn My design use LC7265 and LB3500 prescalerDisplay Range High order 1 digit zero blank and static lighting system.50 KHz step /FM 5 digitsCovers intermediate frequencies +10.7, +10.725, +10.750, +10.675 / -10.700, -10.725,-10.675, -10.650In put voltage 100mV – 600mV rmsInput frequency 80MHz – 175MHz VHF RangeLED DISPLAY Wiring Diagram2 x 1 character 7 segment, decimal points right / 15-mm 2 character 7 segments, decimal point right 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  3. 3. VHF 80MHz-160MHz Frequency CounterFM IF selectFIF1 (11pin) 0 0 0 0 1 1 1 1FIF2 (12pin) 0 0 1 1 0 0 1 1FIF3 (13pin) 0 1 0 1 0 1 0 1IF (MHz) +10.700 +10.725 +10.675 +10.750 –10.700 –10.725 –10.675 –10.650 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  4. 4. VHF 80MHz-160MHz Frequency Counter 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  5. 5. VHF 80MHz-160MHz Frequency CounterPCBH x 45.53mm W x 55.1mm 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  6. 6. VHF 80MHz-160MHz Frequency CounterC1 –C5 - 10uF R1 – 4.7k U1-LC7265C2 - C4 - 22p X Tal – 7.2MHz U2 – LB3500C3 – 0.01uF L1 – 10uH U3 – LM7805C6-C7-C11 – 0.001uF C9-C10 – 100pC8- 68p 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  7. 7. VHF 80MHz-160MHz Frequency Counter 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com
  8. 8. VHF 80MHz-160MHz Frequency Counter 4S6GGS – Gayan E mail – 4s5gs.gayan@gmail.com

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