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Thanks Mike,

Ordered 10 of them from Arrow - even cheaper than Digi-Key by a couple of bucks and certainly much cheaper on the shipping with Arrow's free overnight shipping.

My Digi-Key order will be here in about an hour and I'll mod the two V4 boards I have.? After the Arrow order arrives tomorrow, I'll mod the 2 V3 boards and run the Spectrum tests on them.

Jim Sheldon, W0EB

------ Original Message ------

From: "Michael Maiorana" <zfreak@...>

To: [email protected]

Sent: 10/10/2018 9:07:12 AM

Subject: Re: [BITX20] Harmonics and Relay Replacement

For those in the USA, you can order these from Arrow electronics (). They are a little cheaper, plus you get free overnight shipping.

I ordered some and will try to replicate Mike's results.

Mike M.

KU4QO

On Mon, Oct 8, 2018 at 3:54 PM Mike Doty via Groups.Io <mikedoty=[email protected]> wrote:

I thought I would pass this along, for whatever it is worth.? I have two Ver 3 and one Ver 4 uBiTX rigs.? I have replaced K3, KT1, KT2, and KT3 relays with Axicom relays which has knocked down the 3rd, 5th, and 7th harmonic levels from -35dB to below -50dB on all 3 rigs without any board modifications to the LPF circuits.? This may be anecdotal but with 3 rigs showing the same results it may be something to consider.? I purchased the relays from Mouser - part # 655-V23105A5403A201.? Cost was $2.89 per relay plus shipping.? I've attached photos (sorry for the blurriness) showing the before and after results on my Ver 4 rig.
--73--? Mike? --? W0MNE