Bryan Fields wrote:
On Monday 19 December 2005 09:55 pm, Kevin Custer wrote:
Yes it can... FM that is...
Well the distortion I am seeing due to the final looks like AM, but then the
vco has FM distortion when you tap the board so it's hard to tell. It's a
combo of
Kevin Custer wrote:
Bryan Fields wrote:
On Monday 19 December 2005 09:55 pm, Kevin Custer wrote:
Yes it can... FM that is...
Well the distortion I am seeing due to the final looks like AM, but
then the vco has FM distortion when you tap the board so it's hard to
tell.
At 03:55 PM 12/19/2005 -0600, you wrote:
It looks like just a bad amp design as the transistor has the collector
commen
to the case, putting RF on the Heatsink. the heat sink seams to form a
capacitor between it and the shield so any movement or heating modulates the
signal.
---Modulates
On Monday 19 December 2005 05:44 pm, Ken Arck wrote:
---Modulates it AM wise? Cause there ain't no way it could modulate the
signal FM wise..
Yes AM wise, it varys the output Z which would make a AM signal. We see it on
the service monitor when we tap/blow on it.
--
Bryan Fields, KB9MCI
Ken Arck wrote:
At 03:55 PM 12/19/2005 -0600, you wrote:
It looks like just a bad amp design as the transistor has the collector
commen
to the case, putting RF on the Heatsink. the heat sink seams to form a
capacitor between it and the shield so any
-
From: Bryan Fields [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, December 19, 2005 4:55 PM
Subject: [Repeater-Builder] Hamtronics T301 220 exciter Final and
microphonics
well I have a T301 on 220 that has some serious power drop off and
microphonics issues. I had
On Monday 19 December 2005 09:55 pm, Kevin Custer wrote:
Yes it can... FM that is...
Well the distortion I am seeing due to the final looks like AM, but then the
vco has FM distortion when you tap the board so it's hard to tell. It's a
combo of both.
How can the Final in this produce FM of
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