Difference between revisions of "Current Projects"
From Note to self
(Created page with "= Belthorn XTal Filter = STATUS: stuck * Ceramic caps didn't work very well: ** Low Q factor ** high tolerances * Refitting with styroflex caps, but I'm missing some values. ...") |
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** high tolerances | ** high tolerances | ||
* Refitting with styroflex caps, but I'm missing some values. | * Refitting with styroflex caps, but I'm missing some values. | ||
| + | |||
| + | 2014-03-27: | ||
| + | Built new filter, works ok (Currently testing with VNA) | ||
= Bridge for N2PK VNA = | = Bridge for N2PK VNA = | ||
| − | STATUS: | + | STATUS: DONE! |
| − | + | ||
| − | + | ||
= reconstruction filter and amplifier for AD9951 DDS = | = reconstruction filter and amplifier for AD9951 DDS = | ||
| Line 16: | Line 17: | ||
* Need to caracterize the filter and test the MMIC amplifier. | * Need to caracterize the filter and test the MMIC amplifier. | ||
| + | |||
| + | Tested at RCL. | ||
| + | Filter is ok. | ||
| + | Amplifier oscillates. | ||
= AD9850 DDS VFO = | = AD9850 DDS VFO = | ||
STATUS: writing software. | STATUS: writing software. | ||
Revision as of 05:33, 27 March 2014
Contents
Belthorn XTal Filter
STATUS: stuck
- Ceramic caps didn't work very well:
- Low Q factor
- high tolerances
- Refitting with styroflex caps, but I'm missing some values.
2014-03-27: Built new filter, works ok (Currently testing with VNA)
Bridge for N2PK VNA
STATUS: DONE!
reconstruction filter and amplifier for AD9951 DDS
STATUS: ready for testing
- Need to caracterize the filter and test the MMIC amplifier.
Tested at RCL. Filter is ok. Amplifier oscillates.
AD9850 DDS VFO
STATUS: writing software.
