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 |
To order this kit, use the buttons below. (you do not have to have a PayPal account to pay for items using a credit card)
Use Add to cart buttons to add an item to your shopping cart. Use "Continue Shopping" tab to go back and add multiple items to your cart. You can view shipping charges before making payment. Payment can be made by Credit Card, Debit Card or by Paypal. Selecting "Checkout" in your shopping cart will allow you to use a credit card rather than Paypal Please be sure the address you supply is correct. We receive an automated notification when you complete payment. Your order will be shipped as soon as possible unless otherwise stated. Thanks for your support!