HMC666- Performance at lower LO frequency?

Dear Supporter

My customer was using the HMC215 which is now not recommended for new designs.

The HMC666 can be a good candidate to replace it but it has an LO operating freq range of 2.8-3.6Ghz.

What will be the inpact when using an LO freq of 2.6Ghz?

Thanks

Freddy