RF filter for Dynon EMS

Janekom

Janekom

I love flying!
Joined
Dec 15, 2012
Messages
107
Location
South Africa
Some years ago I have seen an RF filter made up of back to back connectors (male and female) that gets connected between the connector from the EGT and CHT probes and onto the EMS. Does anyone perhaps have a circuit diagram for it. I have an RV7A where the EGT and CHT readings spike when clicking the PTT. Thank you and much appreciated.
 
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Capacitive Filter (EMC) Adapter, DB9 Male/Female

L-com's male-female filtered adapters are a viable solution for companies that need to rework (retrofit) existing designs in their effort to reduce data destroying EMI/RFI. Easy installation and low cost have saved many engineers from costly re-designs. Similar to standard socket savers, except...
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Janekom said:
Some years ago I have seen an RF filter made up of back to back connectors (male and female) that gets connected between the connector from the EGT and CHT probes and onto the EMS. Does anyone perhaps have a circuit diagram for it. I have an RV7A where the EGT and CHT readings spike when clicking the PTT. Thank you and much appreciated.
Click to expand...
How old are the Dynon units ? The symptoms you describe were an issue for a short time, & yes, temporarily fixed by using the L-Com 9, 25 & 37 connectors. Dynon improved their later units to prevent this from happening.
There’s also the possibility of poor bonding/grounding & cheap eg RG58 creating the problem ??
Cheers, Jake
 
Thank you all. I did not mention that I am in South Africa. The plane is a 2006 model. Equipment possibly from 2005 vintage. We will try Digikey as they do deliver and is represented here in South Africa. Their shop does show stock. RF wiring checked already. The owner is a Amateur Radio man of note.
 
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