BAMAtech DJ7GP Dual band feed, removing the LNB

PA5Y · Jan 23rd 2023

Hello all, in my haste I bought a BAMAtech dual band feed with an LNA included. I realise now that I should have bought a POTY. Does anyone have any experience of removing the LNB from a BAMAtech DJ7GP dual band feed? Is it easy? I do not have the feed yet it is in the post. In anticipation I got a 24MHz PLL from Dieter DF9NP and so I am tied to using an LNB that requires a 24MHz reference. It would be easiest to remove the LNB from the BAMAtech feed. I assume that the waveguide is merely pushed into the LNB and then some silicone sealant is applied.

I am annoyed with myself for not realising that the BAMAtech feed is not a POTY.

Regards

Conrad PA5Y

HB9SKA · Jan 23rd 2023

Hello Conrad

Both antennas are Patch Feeds, why do you need a PatchOfTheYear ?

https://www.bamatech.net/antennen/

http://www.hybridpretender.nl/poty.html

PA5Y · Jan 23rd 2023

Hello Thomas

Sorry for the late reply, I was not home until late.

I read that the POTY is around 2.5dB better on TX. Most attribute this to the fact that the POTY has better circularity. I decided the best way to tell would be to confirm it for myself.

Regards

Conrad PA5Y

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