[EMAIL PROTECTED] wrote:
BTW, these things need not triple or even double the price of a new radio,
as some have suggested. An extra pot for CTCSS deviation, decent CTCSS
decoders, higher IP3 front-end amps mixer more front-end filtering
would probably add $50-$100 to the cost of the
At 3/15/2007 21:41, you wrote:
Bob,
I have two DR-605T radios, and both have one pot, VR204, which adjusts the
combined voice plus tone levels going to the modulator. It is not possible
to adjust the CTCSS tone level independently. However, I padded down the
tone levels, upstream of this pot,
-Builder%40yahoogroups.com
Sent: Wednesday, March 14, 2007 11:37 PM
Subject: Re: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
At 07:23 PM 03/14/07, Eric Lemmon WB6FLY wrote:
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance
mch wrote:
OK. Let me approach this from another angle. What is the deviation on
your system that is not the standard 5.0 kHz or so (running 16K0F3E)?
Joe M.
Deviation has nothing to do with it. He was talking about the minimum
channel step resolution, which is a function of the
James wrote:
Yes, thank you Jim .. I did say channel steps not spacing. 2.5 Khz channel
step
tends to go with 12.5 KHz channel spacing. 7.5 Khz is a form of ultra narrow
that I have yet to use for anything.
James
If you do anything in the commercial spectrum from about 150 to 175 Mhz,
, 2007 9:28 AM
Subject: Re: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
There is a big difference between the Micor or Mastr II station that was
factory built for a specific frequency or group of frequencies and an
inexpensive mass marketed radio that is built by the thousands
PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, March 15, 2007 9:13 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
At 3/15/2007 20:13, you wrote:
snip
Guess I'm good at picking out the exceptions. Don't recall for sure, but
I
-Builder] Amateur-Grade Radios (Was: Fixed Audio)
At 07:23 PM 03/14/07, Eric Lemmon WB6FLY wrote:
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance parameters of 12dB SINAD sensitivity, voice
deviation limit, CTCSS deviation limit, and center
2.5 kHz channel spacing? Where is that used? It's not in the commercial
USA market. Or did you mean 7.5 kHz?
Joe M.
James wrote:
And most ever ICOM (I - It, C - constantly, O - over, M - modulates)
over modulates. Every one I set my hands on will do 6.5Kc (never mind
the poor stability).
Eric Lemmon wrote:
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance parameters of 12dB SINAD sensitivity, voice
deviation limit, CTCSS deviation limit, and center frequency accuracy. I
did not get a satisfactory answer, but I suspect
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, March 15, 2007 3:44 AM
Subject: Re: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
Commercial radios also used fixed values. The Micor is one example of fixed
values
Yikes!. You mean that spark gap is dead!
Lance N2HBA
- Original Message -
From: Jim B.
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, March 15, 2007 8:59 AM
Subject: Re: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
Eric Lemmon wrote:
Nate
mch wrote:
2.5 kHz channel spacing? Where is that used? It's not in the commercial
USA market. Or did you mean 7.5 kHz?
Joe M.
FWIW-He said channel steps, not spacing.
James wrote:
It even does 2.5 KHz channel steps to
comply with modern narrow band channel planning
--
Jim Barbour
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Thursday, March 15, 2007 3:45 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Amateur-Grade Radios (Was: Fixed Audio)
Commercial radios also used fixed
OK. Let me approach this from another angle. What is the deviation on
your system that is not the standard 5.0 kHz or so (running 16K0F3E)?
Joe M.
James wrote:
Yes, thank you Jim .. I did say channel steps not spacing. 2.5 Khz
channel step tends to go with 12.5 KHz channel spacing. 7.5
At 3/15/2007 20:13, you wrote:
The point I made was that Alinco, among many other manufacturers, simply
used a certain value in almost every radio built, rather than a selected
value, with the assumption that it would result in enough CTCSS deviation.
As I pointed out, that value more often than
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance parameters of 12dB SINAD sensitivity, voice
deviation limit, CTCSS deviation limit, and center frequency accuracy. I
did not get a satisfactory answer, but I suspect that there is a reluctance
At 07:23 PM 03/14/07, Eric Lemmon WB6FLY wrote:
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance parameters of 12dB SINAD sensitivity, voice
deviation limit, CTCSS deviation limit, and center frequency accuracy. I
did not get a satisfactory
At 3/14/2007 19:23, you wrote:
Nate,
Several years ago, I chastised ARRL Labs for failing to report the basic
2-way radio performance parameters of 12dB SINAD sensitivity, voice
deviation limit, CTCSS deviation limit, and center frequency accuracy. I
did not get a satisfactory answer, but I
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