Pacific Antenna
Affordable QRP Antennas and Kits at exceptional value


   

KD1JV Digital Dial

The Digital Dial is primarily intended to be used as a simple means of adding a digital frequency read out to single band QRP radios. A programmable IF offset feature allows the counter to measure the VFO frequency but display the actual operating frequency. The digital dial can also be used as a general purpose frequency counter. It also includes a special "crystal matching" mode, which allows the matching of crystals used in IF filters to within 10 Hz of each other.

Specifications:

  • Frequency range: 100 kHz to 45 MHz
  • Resolution: 100 Hz
  • Update rate: 100 ms
  • Input level: 50 mv p-p min, 2 V p-p max. (sensitivity varies with freq) Input impedance: 1 Mega ohm.
  • Display, four digit LED
  • Supply voltage: 8 V min, 14 V max
  • Supply current: 37 ma, typical
  • Size: 2.1" wide, 1.1" high, 0.5" deep


Comparison of Digital Dials and Frequency Counters


Notes:
Each kit was assembled and calibrated per the manufacturer's instructions.
The sensitivity of each assembled digital dial was measured using a calibrated HP 8640B RF Generator and verified with a HP 8660C.
The Chinese Ebay digital dial, sensitivity could not be measured with the equipment used so a pre-amp was added.

Supporting Files and Documents

 Digital Dial Assembly Manual (Current ver B)

 Digital Dial Assembly Manual (older ver 1)

Ordering Information

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Digital Dial: 29.00
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Page last updated: 04/13/2017, 14:04:22
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