Yes, meter 4 shows the channel element is on frequency.
If by IF alignment you mean injecting 11.7 Mhz and setting meter 4 to zero, yes
I checked that. It was not far off.
--
Tim
:wq
On Sep 7, 2010, at 9:11 AM, Milt wrote:
Is the meter 4 circuit showing that the channel element is on
Hmmm... I didn't realize the DVP has a wider IF. I gather DVP requires up to 6
Khz of audio. So now I'm thinking that this receiver is not suitable for my
busy hill (Santiago Peak). What do you think?
--
Tim
:wq
On Sep 6, 2010, at 8:17 PM, Jeff DePolo wrote:
The SP docs show it being a DVP
I have a Micor base that was manufactured in the ham band. Model is
C64RXB3196A-SP71. The receiver model number is TRE1241A-SP10 (420-450 Mhz). It
came with 4 channels all tuned up and on frequency in the ham band. But the
receiver is sensitivity is .72 mv for 20 db quieting on the best channel
Eric,
It's 0.72 microvolts. Not totally dead, just a bit numb.
--
Tim
:wq
On Sep 6, 2010, at 10:24 AM, Eric Lemmon wrote:
Please confirm that you measured the sensitivity as 0.72 millivolts, or 720
uV
I'm getting about 0.35 for 12 db SINAD. But that looks about 10 db quieting to
me. What I typically do is open the squelch with no signal and set the volume
to 2 Vac then crank up the signal to 0.2 vac. Isn't that 20 db, or am I missing
something?
--
Tim
:wq
On Sep 6, 2010, at 10:46 AM, Eric
Yea, I think 20 db quieting is more like 0.175 uV 12 db SINAD.
--
Tim
:wq
On Sep 6, 2010, at 12:52 PM, John J. Riddell wrote:
2V AC down to .2 v. AC is 20 DB quieting
In that spirit. Going from 80 to 100 watts is 0.97 db better. That's probably
not an improvement your users will notice. When one considers what a pain it is
when the PA dies, it might not be worth it. Just my 2 cents but I think you're
better off leaving the amp at 80 watts.
--
Tim
:wq
On Sep
:
2V AC down to .2 v. AC is 20 DB quieting
John VE3AMZ
- Original Message -
From: Tim Sawyer
To: Repeater-Builder@yahoogroups.com
Sent: Monday, September 06, 2010 3:48 PM
Subject: Re: [Repeater-Builder] Micor UHF Sensivity
I'm getting about 0.35 for 12 db SINAD. But that looks
I have tried with 3 volt meters and 2 SINAD meters: a Fluke 77, a Sinadder 3
(SINAD AC voltmeter) and a HP8924c. Pretty much same results with all. That
is 20 db quieting around 0.7 uV, SINAD around 0.35. So what's the recommended
meter? Should I trust the SINAD reading and chock the quieting
stations, so the AF circuitry should be
the same between the discriminator and the speaker terminals.
--- Jeff
-Original Message-
From: Tim Sawyer [mailto:tisaw...@gmail.com]
Sent: Monday, September 06, 2010 8:04 PM
To: Jeff DePolo
Subject: Re
Indeed, long live vi. I do have a pass cavity between the Micor circulator and
the duplexer. I'm not sure where the other IM products are just yet. I'm
sometimes hearing a pager. Once I heard what I suspect is Orange County Red
Cross on 462.9875... still confirming this. I hear the drip from
Same thing but my fingers learned :wq too many years ago to retrain I even
type it in my GUI editors... duh!
--
Tim
:wq
On Sep 4, 2010, at 10:10 AM, Will Gwin wrote:
try:
:x
I'm looking for a UHF circulator to buy (or borrow). I have a mix that involves
our transmitter but I'm not sure it's in our transmitter. We have a Micor
repeater with the built in circulator but some feel an outboard two port is
required for our nasty hill. It would be good if I could test one
Here's the latest: We went up to our site yesterday. We added a lighting
arrestor to the receive antenna. We grounded the chassis/rail/cabinet as it was
only grounded via the power cord previously. Didn't expect this to fix the
paging problem, it just needed to be done.
I did find a loose
bearing solder if you
can find it.
On Wed, Aug 25, 2010 at 1:27 PM, Tim Sawyer tisaw...@gmail.com wrote:
Here's the latest: We went up to our site yesterday. We added a lighting
arrestor to the receive antenna. We grounded the chassis/rail/cabinet as it
was only grounded via the power
?
--
Tim
:wq
On Aug 25, 2010, at 1:32 PM, DCFluX wrote:
I've seen this before on Wacom BpBr duplexers. Remove the coupling loop from
the cavity and re-solder the connectors. Use 2% silver bearing solder if you
can find it.
On Wed, Aug 25, 2010 at 1:27 PM, Tim Sawyer tisaw...@gmail.com wrote
That's how I found 157.74. We're going back up on Tuesday to look some more.
--
Tim
:wq
On Aug 21, 2010, at 4:52 AM, Joe wrote:
I've had luck finding these kinds of problems by bringing a spectrum
analyzer to the site and connecting it to an antenna. I look at
10-20Mhz sections of the
@yahoogroups.com
Sent: Friday, August 20, 2010 10:46 PM
Subject: Re: [Repeater-Builder] Re: Intermod Calculation
Could be a spur. Can you hear any other audio with the page? (ever)
Joe M.
Tim Sawyer wrote:
It seems to pick up most of the page. Occasionally the beginning is
missing
I'm not sure what you mean by grungy. What are you getting at?
--
Tim
:wq
On Aug 21, 2010, at 6:59 AM, MCH wrote:
Does it have a 'grungy' sound to it when you hear it on your input?
input?
Might also be worth putting the Spectrum Analyzer on your input to see
if you can see it drifting through the frequency - or drifting onto it.
Joe M.
Tim Sawyer wrote:
Another tidbit about this problem is that it's clean in the mornings. The
paging transmitter can be going off
the 929.0375 and the 157.74 transmitters. They
also have two other transmitters on 929.6375 and 931.6625.
--
Tim
:wq
On Aug 21, 2010, at 9:18 AM, Matthew Kaufman wrote:
Tim Sawyer wrote:
It seems to pick up most of the page. Occasionally the beginning is
missing or it will get just the very end
with the spur.
Think of a very loud 60 cycle hum.
And 15 kHz is higher than normal. I think the typical shift is 5 kHz
(+/- 2.5 kHz) if we are talking about digital paging. Analog might be 15
kHz, as the bandwidth limit would be 16 kHz.
Joe M.
Tim Sawyer wrote:
I'm not sure what
@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tim Sawyer
Sent: Saturday, August 21, 2010 1:33 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Intermod Calculation
I haven't noticed a hum. There's more of a scream on it.
It's POCSAG
that show 5 Khz dev.
--
Tim
:wq
On Aug 21, 2010, at 12:18 PM, MCH wrote:
Before you said 15 kHz P-P (IOW bandwidth). Now you're saying 15 kHz
deviation. 15 kHz deviation would be way too high.
Joe M.
Tim Sawyer wrote:
I haven't noticed a hum. There's more of a scream
a 'grungy' sound to it when you hear it on your input?
Might also be worth putting the Spectrum Analyzer on your input to see
if you can see it drifting through the frequency - or drifting onto it.
Joe M.
Tim Sawyer wrote:
Another tidbit about this problem is that it's clean
it is putting a filter on its TX to notch your
repeater RX frequency (good luck getting that to happen if it's not on
the same site - and often if it is on the same site).
Joe M.
Tim Sawyer wrote:
My service monitor (HP 8924C) has both a deviation meter and an
oscilloscope to display
Apparently, from what the tech said, this one is slated to go off the air in
coming months, too. But I can't wait that long as our repeater is basically
useless at this point. And you never know, it might take them longer than that
to actually kill it.
--
Tim
:wq
On Aug 21, 2010, at 1:02 PM,
If that was the issue I'd think every other two meter repeater on the hill (and
there are many) would have the my same problem. But they don't.
--
Tim
:wq
On Aug 21, 2010, at 7:27 PM, larynl2 wrote:
--- In Repeater-Builder@yahoogroups.com, Tim Sawyer tisaw...@... wrote:
Basically
On Aug 21, 2010, at 6:38 PM, men...@pa.net wrote:
How long has the pager been in operation?
If it has been there for a long time either something changed in the
pager setup or something changed on your end.
We've been having many problems at the site (including a broken tower cross
arm,
I have paging intermod from 157.740 Mhz. My receiver is on 144.540 Mhz. I'm
100% sure there is another transmitter involved in the mix because sometimes
the pager is transmitting and I have no interference.
I have an intermod calculator program but it wants all the known transmitters
and the
when your repeater transmitter is
unkeyed.
--- Jeff WN3A
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tim Sawyer
Sent: Friday, August 20, 2010 6:36 PM
To: Repeater-Builder@yahoogroups.com
Subject
I'll watch those. How did you calculate them?
--
Tim
:wq
On Aug 20, 2010, at 5:38 PM, MCH wrote:
Most likely suspects would be 151.140 and 170.940 MHz.
Joe M.
Tim Sawyer wrote:
I have paging intermod from 157.740 Mhz. My receiver is on 144.540 Mhz. I'm
100% sure there is another
No, I never, ever have heard any other audio. But there is time when I don't
hear it at all... as if it takes two signals to occur.
--
Tim
:wq
On Aug 20, 2010, at 7:46 PM, MCH wrote:
Could be a spur. Can you hear any other audio with the page? (ever)
Joe M.
Tim Sawyer wrote
I'm in Huntington Beach.
--
Tim
:wq
On Aug 20, 2010, at 8:52 PM, Mike Besemer (WM4B) wrote:
Tim,
Where are you located?
73,
Mike
WM4B
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tim Sawyer
Sent: Friday
Sorry, not trying to propagate crap. I was just trying to be helpful and didn't
want him to make maters worse. Thanks for your recommendations.
--
Tim
:wq
On Aug 12, 2010, at 6:51 AM, Mark Tomany wrote:
It's amazing that so many people have the time on their hands to be able to
propagate all
Was your machine on while you were away? If so you may have gotten a virus or
spyware. Sounds like your wife got it too. Spamers like to infect machines just
to get control of them for sending spam. The really bad news is that most free
spyware removal software is spyware itself. A really good
Is there a write up on the procedure somewhere or could you explain it here?
--
Tim
:wq
On Aug 9, 2010, at 10:20 AM, skipp025 wrote:
3. Repeater Pre-selector Alignment. How did the Dealer
align the receiver front end? Most people use the
peak for max signal method and that's not the best.
Hey John,
All you have to do is edit the configuration file. You see the location of the
configuration file when DOSBox starts. There are pretty plain comments in there
as to how to set it up. Going from memory it was something like this:
serial1 = directconnect realport:com1
--
Tim
:wq
On
How about duty cycle? Do you think this set up would transmit 7x24?
--
Tim
:wq
On Jul 28, 2010, at 7:46 PM, James Adkins wrote:
I am using the Motorola CDM series of radios for 420-425 MHz links from
voting sites. They make a low-split UHF split that covers 403-470 MHz out of
the box, no
RICK to make them work.
Have a great weekend.
Butch, KE7FEL/r
On Fri, Aug 6, 2010 at 3:46 PM, Tim Sawyer tisaw...@gmail.com wrote:
Oh, sorry Butch. I was asking James about the CDM radios.I know the Micor's
are 7x24x365.
--
Tim
:wq
On Aug 6, 2010, at 12:30 PM, Glenn (Butch
Hello Butch,
If you have sent pictures I did not get them.
--
Tim
:wq
On Jul 30, 2010, at 9:24 PM, Glenn (Butch) Kanvick wrote:
Hello Tim.
Yes, it is the 402-430 Mhz. split radio. I have a coupleoftheMicorsandafew
GEMastr II's.
The TX is on 419.3750 and the RX is on 414.4750
I
I didn't seen any release notes on Linkcomm's site. What's new in this release?
--
Tim
:wq
On Jul 31, 2010, at 7:27 PM, Stanley Stanukinos wrote:
Those of you that are running the Link DSP404 a Beta release is out version
5.18. I have loaded it on my controller and so far so good. The fist
What's it take to program those radios?
--
Tim
:wq
On Jul 29, 2010, at 8:45 PM, James Adkins wrote:
I disagree on the price of the CDM's. You can get the CDM-750 (4-channel)
for as low as $75 to $125 if you watch for them on e-bay. The CDM-1250 and
CDM-1550 are more expensive used, but
Yes, it has a stock Motorola PL encode board. I think the noise was there
before I installed it.
--
:wq
Tim
RG-8 is not good for duplex. The braid will make TX noise and get into the
receiver. Cheap antennas can make the same problem. Test into a dummy load
right at the duplexer. If no noise then you know it's the feed line and/or
antenna.
6.5 inch dia cans are big ones so you should have plenty of
the desense was tremendous. It took an input signal of
around 70 microvolts to overcome desense. I retuned it on my analyser
and got 80dB and it worked
Steve
- Original Message -
*From:* Tim Sawyer tisaw...@gmail.com
*To:* Repeater-Builder@yahoogroups.com
*Sent:* Friday, May 21, 2010 3:47
I need to notch 145.16 out of my receiver. Do you think it would tune down
that low?
On Thu, Feb 18, 2010 at 2:25 PM, skipp025 skipp...@yahoo.com wrote:
Re: VHF Decibel Duplexer
I should probably buy this... or at least bid on it. But I'm
making a serious effort to revive my 12 Step Junk
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