Flex 6300M SO2R - Need for External Bandpass Filters?

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  • Updated 5 months ago
I heard it mentioned, outside of this forum, that the 6600 does not require external bandpass filtering for SO2R operation. If accurate, this would be another example of the “economies” and station simplicity created by this radio.

Could someone confirm if this is true?

- Hunter K3IE
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Hunter - K3IE

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Posted 5 months ago

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Steven Linley

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My club did a virtual meeting with flex. The flex representative explained that the 6600 has a 7th order bandpass filter on all contest bands. That's more than enough for SO2R at 100watts, if your antennas are 90° to each other and/or far enough apart.
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Tim - W4TME, Customer Experience Manager

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...and if the receivers are not on the same band (SO2V) too.

It is all about calculating the signal level that the 2nd RX is going to be exposed to while transmitting.  We have a worksheet for this:

http://www.flexradio.com/downloads/flex-6000-fdx-power-calculation-worksheet-pdf/
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Hunter - K3IE

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That is good to know for the Low Power category. If you are bringing the heat, external BPFs still the safe bet.

Thanks Steven - Hunter.
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Hunter - K3IE

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And thanks Tim for worksheet link - H.