At 11:03 PM 12/3/03 -0500, you wrote:
Ian, you should have time standard frequencies in Australia on 5 10 and 15
MHz. If you have a secondary receiver, tune in the 10 MHz and compare it
to the
output of the 10 MHz timebase in your service monitor.
This has been one of my obsessions for a while
Not using the frame syncsusing the actual RF carrier!
Gregg R. Lengling, W9DHI, Retired
Administrator http://www.milwaukeehdtv.org
K2/100 S#3075 KX1 S# 57
Politics is the art of appearing candid and completely open, while
concealing as much as possible. -States: The Bene Gesserit View
http://www.endruntechnologies.com/frequency-control.htm
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attachment: winmail.dat
HI Coy
Please send your email addy.off list.
Joe /KE4WDP
[EMAIL PROTECTED]
- Original Message -
From: ac0y5 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 03, 2003 9:05 PM
Subject: Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
Hi
From: Rod Lane [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 03, 2003 10:55 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: crystal alignment (how accurate is
accurate)
Used to be... In the good old days before frame syncs, you could wait
until the local
Thank you very much
Ian Wells
- Original Message -
From: Gregg Lengling [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, December 04, 2003 2:06 PM
Subject: RE: [Repeater-Builder] Re: crystal alignment (how accurate is
accurate)
Another couple ways to calibrate:
Thank you very much
Ian Wells
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, December 04, 2003 2:03 PM
Subject: [Repeater-Builder] Re: crystal alignment (how accurate is accurate)
Ian, you should have time standard frequencies in
If you are looking at the 3.58 MHz on demodulated video, then you are looking
at a framesync. In today's world of broadcasting, the consumer TV's will be
much more forgiving of the 3.58 drift and still lock on to it, so its accuracy
is not as important as it was back in the day. Knowing what I
Thank you
Ian Wells
- Original Message -
From: Mike Morris WA6ILQ [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, December 04, 2003 6:25 PM
Subject: Re: [Repeater-Builder] Re: crystal alignment (how accurate is
accurate)
At 11:03 PM 12/3/03 -0500, you wrote:
Thank you verymuch
Ian Wells
- Original Message -
From: Rod Lane [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, December 04, 2003 2:55 PM
Subject: RE: [Repeater-Builder] Re: crystal alignment (how accurate is
accurate)
Used to be... In the good old days before
Thank you verymuch
Ian Wells
- Original Message -
From: Steve S. Bosshard (NU5D) [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, December 04, 2003 4:16 PM
Subject: RE: [Repeater-Builder] Re: crystal alignment (how accurate is
accurate)
I remember an old QST
Hello,
I am looking for a communication monitor, preferably IFR. Can anyone
point me in the right direction.
Ken
ve3oks
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eBay???
-Original Message-
From: ve3oks [mailto:[EMAIL PROTECTED]
Sent: Thursday, December 04, 2003 9:01 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Communication Monitor
Hello,
I am looking for a communication monitor, preferably IFR. Can anyone
point me in
I would say the repeater system preformance is
not nearly as good at it could/should be.
For the most part 9 miles should be a cake walk on
a well done VHF system as long as the portables
have min 4 watt output.
I would first turn my attention back to the
repeater and antenna system.
Thanks Steve,
Was hoping to find a UHF link system I could run continuously to
eliminate the delay and noise (and not burn up!). Good info though, I
didn't think the voter would work well with the initial noise on
remote key up. I wanted to use the Doug Hall voter too.
I also like your initials
EBAY, but BE SURE the monitor has all the features you need,
sometimes can be confusing. I like having the tracking generator in
my IFR for tuning cavities and duplexers. Not all of them have it
since it is an option.
Frank, KO5S
--- In Repeater-Builder@yahoogroups.com, ve3oks [EMAIL
EBAY, but BE SURE the monitor has all the features you need,
sometimes can be confusing. I like having the tracking generator in
my IFR for tuning cavities and duplexers. Not all of them have it
since it is an option.
Frank, KO5S
--- In Repeater-Builder@yahoogroups.com, ve3oks [EMAIL
TX/RX BpBr cavity For Sale
removed from a transmit combiner system.
rated UHF, 450-470
pretty big - about 10 in diameter and 30 tall...
i sold a few to Kevin - he can probably provide more info than i can -
overall appearance is a little dirty with some pitting of the aluminum -
but on the
chiefsfan wrote:
Our city PD is responsible for security at the airport which is 9 miles from
the city and thier vhf repeater. They are having trouble getting into the
repeater from inside the building but can reach ok outside the building. Does
the group think a passive repeater might do
Way back in 1964 I worked in a two-way shop part-time while in college.
We also sold and serviced Amateur Radio gear. The other techs and I built a
receiver set-up for doing frequency measurements out of two similar short
wave receivers. One receiver was the master receiver for WWV (or other
[EMAIL PROTECTED]
--- In Repeater-Builder@yahoogroups.com, Joe Cody [EMAIL PROTECTED]
wrote:
HI Coy
Please send your email addy.off list.
Joe /KE4WDP
[EMAIL PROTECTED]
- Original Message -
From: ac0y5 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday,
I would say the repeater system preformance is
not nearly as good at it could/should be.
For the most part 9 miles should be a cake walk on
a well done VHF system as long as the portables
have min 4 watt output.
I would first turn my attention back to the
repeater and antenna system.
I agree. I'm doing that distance on UHF with lots of hills and portables
running only about 1 watt. I'd be willing to bet you've got a repeater
antenna problem, maybe causing desense.
Chuck
WB2EDV
- Original Message -
From: skipp025 [EMAIL PROTECTED]
To:
If its for amateur use,full time transmit links are illegal !!! If you
are using tone control,put another tone generator at the receiver site
and switch it inline when COS is inactive. Have the link transmitter
follow the rx input with a short delay. This fakes out the voter
since it still sees
I am looking for the following item in working condition:
For GE Master II
1- Ge Test Set model 4EX3A11
Please contact me direct with price including shipping.
Thank you
Jimmy Floyd
NQ4U
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Hello all
I know this is a bit off the Topic but does anyone have a service manual on a Lowband MT1000 42-50 mhz. Looking for transmitter alignment procedure.
Also does anyone have a cutting chart for a rubber duck lowband MT1000 or lease approximate at 51.xxx mhz for the portable.
I've
My source? Bad memory,,,Ok,maybe it used to be but a full time link
just isnt good practice. Its too easy for others to find and fiddle
with,jammers and the like. Its easier on the equipment as well.
Gee,wouldnt it fall under beacon rules then? Lets just say that
personnaly,I would not run a
I'm thinking about putting a receiver preamp in our system. Any words
of advice from anyone would be greatly appreciated. Brand, model, etc.
If you ahve one for sale let me know too. Thanks.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Well, I do agree that it's not the best practice technically (an
arguable point, I suppose), but such animals are common on the public
safety bands. As for security, that too is a debatable point, as such
links use a high frequency tone to indicate absence of a signal. If you
could override the
Ken,
You can buy an IFR-1200S for less than $5,000 these days, and it is a
very capable service monitor. The S includes the spectrum analyzer as
standard, but you definitely want the tracking generator option. The
high-stability time base is another desirable option. My 1200S has all
the
At 04:01 AM 12/5/03 +, you wrote:
I'm thinking about putting a receiver preamp in our system. Any words
of advice from anyone would be greatly appreciated. Brand, model, etc.
If you ahve one for sale let me know too. Thanks.
Look at http://www.repeater-builder.com/rbtip/supplyindex.html and
I have had great results with http://www.advancedreceiver.com/index1.html
on My 444.750 Repeater had a nearby Lighting strike damage it not the
receiver , Sent
it in and they repaired it for about $ 15.00 and sent it back right away.
73 De Don KA9QJG
Your use of Yahoo! Groups is subject
BUT, the Tracking Gen CANNOT be added to just ANY
IFR-1200Ss - only those after a certain serial number.
Joe M.
Eric Lemmon wrote:
Ken,
You can buy an IFR-1200S for less than $5,000 these days, and it is a
very capable service monitor. The S includes the spectrum analyzer as
standard,
Adding a preamp to some repeater systems does not always make it hear
better; sometimes the receiver becomes more sensitive to overload,
intermod, desense, and has a higher noise level. You can mitigate some
of these problems by placing a bandpass cavity immediately in front of
the preamp.
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