Thanks for the input on the W6PQL filters. I need to purchase a known good
Bird slug to see what this amp is doing. Hopefully it's ok.
On Saturday, January 10, 2026 at 02:16:11 PM EST, Roger - W7TZ
<ai7rogerroger@gmail.com> wrote:
I use the W6PQL high power filter on 222 with my Harris amp. It works FB.
73, Roger
W7TZ
CN83ia
On Sat, Jan 10, 2026 at 9:25 AM <vhfcontesting-request@contesting.com>
wrote:
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> 1. Harris 222 mhz amplifier question (mikflathead@aol.com)
> 2. Re: Harris 222 mhz amplifier question (Dave Olean)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Fri, 9 Jan 2026 20:04:30 +0000 (UTC)
> From: "mikflathead@aol.com" <mikflathead@aol.com>
> To: VHF Contesting <vhfcontesting@contesting.com>
> Subject: [VHFcontesting] Harris 222 mhz amplifier question
> Message-ID: <421101173.4763605.1767989070421@mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> 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
>
> ------------------------------
>
> Message: 2
> Date: Fri, 9 Jan 2026 18:18:42 -0500
> From: Dave Olean <k1whs@metrocast.net>
> To: "mikflathead@aol.com" <mikflathead@aol.com>, VHF Contesting
> <vhfcontesting@contesting.com>
> Subject: Re: [VHFcontesting] Harris 222 mhz amplifier question
> Message-ID: <fb044bc2-1e9e-4149-a260-0a6332ed4fe1@metrocast.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> 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
> > _______________________________________________
> > VHFcontesting mailing list
> > VHFcontesting@contesting.com
> > http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
>
>
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> End of VHFcontesting Digest, Vol 277, Issue 7
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