Difference between revisions of "Frequency Counter"
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* [https://www.qsl.net/dl4yhf/freq_counter/freq_counter.html Original Design] | * [https://www.qsl.net/dl4yhf/freq_counter/freq_counter.html Original Design] | ||
| − | * [https://www.aliexpress.com/item/4001262793719.html?spm=a2g0o.productlist.0.0.a6a57b558PTLGq&algo_pvid=77bddd5c-6ae2-4082-8837-73945f792fae&algo_expid=77bddd5c-6ae2-4082-8837-73945f792fae-0&btsid=0bb0622f16000865130548256e846c&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_ AliExpress Frequency Counter] | + | * [https://www.aliexpress.com/item/4001262793719.html?spm=a2g0o.productlist.0.0.a6a57b558PTLGq&algo_pvid=77bddd5c-6ae2-4082-8837-73945f792fae&algo_expid=77bddd5c-6ae2-4082-8837-73945f792fae-0&btsid=0bb0622f16000865130548256e846c&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_ AliExpress Frequency Counter] - Very inexpensive |
* [https://github.com/TheHWcave/PIC-freq.counter-modification/ PIC-freq.counter-modification] | * [https://github.com/TheHWcave/PIC-freq.counter-modification/ PIC-freq.counter-modification] | ||
* [https://owenduffy.net/blog/?p=11386 DL4YHF 50MHz counter on a Chinese TB-244746 PCB] | * [https://owenduffy.net/blog/?p=11386 DL4YHF 50MHz counter on a Chinese TB-244746 PCB] | ||
Revision as of 11:28, 3 October 2020
- Original Design
- AliExpress Frequency Counter - Very inexpensive
- PIC-freq.counter-modification
- DL4YHF 50MHz counter on a Chinese TB-244746 PCB
Rework - Add Pre-Amp
- Pre-Amp schematic
- Based on https://www.youtube.com/watch?v=0BxpMm6SLoE
- When building kit, do not install
- Front side cuts - blue
- Jumpers Red
- Back side cuts
- Details of preamp input pin
- With parts
Reviews / Builds
