ade - KR7K
-
Original Message -
From:
Kevin Custer
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 11:04 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs. Multiplier
(crystal) exciter in duplex service.
Hi Wade,I'm sorry, but I have t
.
Wade - KR7K
- Original Message -
From: Kevin Custer
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 4:16 PM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs.
Multiplier (crystal) exciter in duplex service.
Wade,
If the PLL reference from the crystal
Hi Wade,
Kevin,
I now realize the mistake I was
making in looking at this. I am used toseeing newer PLL's with a much
higher reference oscillator frequency and having a divider in the
reference side before the Phase Comparator. In that case the stability
does improve over
Joe Montierth wrote:
The frequency stability of any transmitter is only as good as it's reference
oscillator (be that a PLL or a multiplied crystal)- dividing or multiplying
the frequency will not change that constant (in PPM). It doesn't matter if you
use a 100KHz, 1MHz, 10MHz or 100MHz
Hi Matt,
Matt wrote:
Hi Kevin,
Just a quick question regarding your earlier email - I thought crystal
oscillators were cleaner (as far as noise sidebands are concerned ) than PLL
types.
Actually it depends on the circuitry associated with crystal. While
some better crystal controlled
Cool, thanks for the reply Kevin!
That makes fascinating reading, what a great design.
Cheers,
Matt
- Original Message -
From: Kevin Custer [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 1:46 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs
Hi Wade,
I'm sorry, but I have to disagree with your stability theory on the GE
Mastr II PLL high-band exciter. If you refer to the PDF manual for the
PLL exciter:
http://www.repeater-builder.com/ge/lbi-library/lbi-30398n.pdf
You will see under the "Description" the exciter utilizes the
/drift is multiplied.
Wade - KR7K
- Original Message -
From: Matt [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 2:53 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs. Multiplier (crystal)
exciter in duplex service.
Cool, thanks
al Message -
From: Kevin Custer
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 11:04 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs. Multiplier
(crystal) exciter in duplex service.
Hi Wade,I'm sorry, but I have to disagree with your
stability theory on the GE Mastr I
2004 2:47 PM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs. Multiplier
(crystal) exciter in duplex service.
I standcorrected, in
part anyway. In this GE radio the deviation is indeed at a divide by 12
from the output. This is why I said "usually", I am not familiar with
theint
m:
Kevin
Custer
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 11:04 AM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs.
Multiplier (crystal) exciter in duplex service.
Hi Wade,
I'm sorry, but I have to disagree with your stability theory on the GE
Ma
er-Builder@yahoogroups.com
Sent: Sunday, December 19, 2004 2:47 PM
Subject: Re: [Repeater-Builder] GE Mastr II PLL vs.
Multiplier (crystal) exciter in duplex service.
I standcorrected, in part
anyway. In this GE radio the deviation is indeed at a divide by 12
from the output. This is
Neil McKie wrote:
That was several months ago. I don'd remember what frequency we
did tune it to ... although I'd want to believe it was the
operating channel frequency.
After changing the exciter away from the PLL to the crystal/ICOM
version, it worked.
What I was wondering was
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