[VHFcontesting] Harris 222 mhz amplifier question

[Dave Olean]

Hello Mike,

I would think that the wattmeter meter might read slightly higher, if 
you squint really hard. Harmonics are a bit over 20 dB down at worst 
case, so that is one in a hundred and hardly noticed. If you see a huge 
amount that seems out of place, you might have an oscillation.  The 
W6PQL filter/ directional coupler is a handy item that will work up to 
500 watts or so with supplied chip caps. Powers of 1000 watts or more 
requires using teflon coax capacitors to avoid failures. I have used a 
bunch of them with great results. Loss is under 0.1 dB.

73

Dave K1whs


On 1/9/2026 3:04 PM, mikflathead--- via VHFcontesting wrote:
> I am working on a Harris 222 amplifier I have had for years. It was marked as a driver amp. 2 pallets are left in the assembly. My question is without having a filter on the output will the power on a Bird wattmeter be accurate? This is showing more power than it should be. This is using a ht to drive the amp. 2 slugs with similar readings. I see W6PQL sells output filters. Mike
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