Eric / Don,
Eric you are so right; A properly designed electrical distribution system--.
However many systems are not designed properly and more are not maintained
properly! It is left up to the customer to correct for these problems. Many 4kv
systems just ahead of the pole transformers do not
I've been milling a few things over in my head and one thing that has
struck my mind and resonated is power versus modulation -- our 900MHz
repeaters typically use a +/-2.5KHz average deviation, which is smaller
than the VHF norm of +/-4.5KHz. At almost half the deviation, it would
seem that
Once upon a time in the early 80s I worked on an Army Mars repeater that
self quieted. Transmitter on 143.990 and received on 148.01. Seems
like the transmitter used a X12 multiplier, and the receiver had a 12
mHz. IF. Took lots of screen wire and feed thru capacitors to make that
puppy
Have not been able to post from my old addres so am trying this one
John
* kf0m [EMAIL PROTECTED] [2007 Sep 27 21:44 -0500]:
Nate: you left out the other fun part of Kansas ham plates. All Kansas
plates have a sticker that identifies the county where it was issued except
for ham plates. We have a saying in ks, that there are only two types of
hams with call
I have to agree and disagree.
I agree there are many gimmick line conditioners out there.
! agree the utility should provide a proper distribution system.
I somewhat agree that converting to 14VDC and floating a battery should help.
The big transformer on the power supply should
I once heard of a term called Gain Bandwidth Product where the greater
the bandwidth - lower the gain. FM commercial broadcast uses extremely
wide bandwidth to support 15 Khz audio and good s/n. Business once used
+/- 15 kHz transmitter deviation to support 300 to 3000 Hz, then +/- 5
kHz,
Fellows,
I have finally published my article on why the UHF mastr II radio self quiets
when converted to a repeater using low-side receiver injection. Please read
over it and let me know of any problems or things that just don't make sense.
RAIN REPORT: The NFCC and Jay Maynard, K5ZC, push for FCC D-STAR Repeater
Clarification (Part One, 13 minutes).
http://www.therainreport.com/rainreport_archive/rainreport-9-27-2007.mp3
Shape Yahoo! in
Ken Arck wrote:
Ken
(who hears comments like You're lucky your call isn't AH0LE when
they see my call plate!)
You think that's bad: My originally issued license was N0NTZ, which got
a lot of Why did you put THAT on your license plate?
:-)
It would make for a good club call and motto
At 11:39 AM 9/28/2007, you wrote:
In an IRLP setup, when done properly, in that repeate with a separate
IRLP radio link configuration -- you'll also need a way to ID the link
toward the IRLP node without PASSING it through the IRLP node, so
toggling CTCSS is a nice way to do that.
Unless
larry allen wrote:
Any suggestion on repeater controllers using radio link to irlp repeater
does not have audopatch...
Larry ve3fxq
Are you asking which repeater controllers can handle a link radio
attached to one of their ports?
There's a lot of them that can do that...
In an IRLP
Ken Arck wrote:
At 11:39 AM 9/28/2007, you wrote:
In an IRLP setup, when done properly, in that repeate with a separate
IRLP radio link configuration -- you'll also need a way to ID the link
toward the IRLP node without PASSING it through the IRLP node, so
toggling CTCSS is a nice way to
Unless the IRLP connection is made directly to one of the Ports. Then
CTCSS is irrelevent
---Actually, I want to clarify this a bit. If he plans on using a
radio link between the controller and IRLP Node itself, CTCSS control
is still irrelevant as we're not dealing with a repeating radio
Ken Arck wrote:
Unless the IRLP connection is made directly to one of the Ports. Then
CTCSS is irrelevent
---Actually, I want to clarify this a bit. If he plans on using a
radio link between the controller and IRLP Node itself, CTCSS control
is still irrelevant as we're not dealing
438-470 MHz/16 channel only.
Any power level.
Working condition only.
Accessories not needed.
Send replies off list only, please. Include exact model # and asking
price.
Thanks.
At 12:07 PM 9/28/2007, you wrote:
Ken Arck wrote:
Not true, that transmitter needs to be ID'ed. To keep that ID from
being heard by the receiver at the IRLP node, CTCSS control is
required. (Or other cheesy solutions like audio notch filters, but even
then you have quiet key-ups being seen by
Fred,
Thanks for the vote of confidence! I think that the underlying message is that
anyone who is paying for electrical power has a right to expect clean and
stable power. I don't care if the power problem is at the end of a
20-mile-long single-phase tap that is along a nearly-impassable
Back in the 70's I worked as an Engr for a broadcast AM/FM station. One day
after a bad storm the night before, there was a message that during the storm,
the evening DJ had seen some flashes in the control room from one of the
equipment racks.
Each of our 19 inch racks had power coming in
John,
What a coincidence! I was Chief Engineer at WLRW in Urbana, IL, from 1968-70,
and we, too, had some really severe lightning storms during my tenure. Thanks
to well-designed equipment, we did not have to add any MOV devices to any of
our power feeds. Also, we put the onus for surge
Test-ignore.
Checking to se if I can post from this address
John, K4AG
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