A bandpass filter is a device that passes frequencies within a certain range, and rejects frequencies outside of that range. These items are particularly useful in Field Day settings or when a POTA or SOTA activation has two or more stations operating at the same time.
After suffering through some minor interference during this years Field Day I decided to invest in a set of filters from K9DP.com, as did another member of our club. These are for QRP operations, up to a maximum of 20w, and they are only available for 15m, 20m, and 40m at the moment. I'm hoping a 10m and 80m version becomes available in the near future.
Here's a picture of the set that arrived today:
Stay Safe Out There !!
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