[Repeater-Builder] Re: PC for controller

[Al Wolfe]

Thanks, Doug, Skip, and all, for a bunch of ideas about using a PC for a 
controller.

Al, K9SI 

Re: [Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner Advertisments

[John Gleichweit]

I don't use IE for its ads, except to run a Terminal Services session at work. 
I use Firefox with Ad Block Plus, which blocks everything that's an ad, and it 
it doesn't get blocked, I can set a filter to block whatever it might be. One 
of the major problems is that Yahoo uses Flash, and it's easy to embed a virus 
payload into a Flash element. 

 -- 
John "Smokey Behr" Gleichweit FF1/EMT, CCNA, MCSE
IPN-CAL023 N6FOG UP Fresno Sub MP183.5 ECV1852
List Owner x10, Moderator x9 CalEMA 51-507
http://smokeybehr.blogspot.com
http://www.myspace.com/smokeybehr



- Original Message 
> From: skipp025 
> To: Repeater-Builder@yahoogroups.com
> Sent: Sun, January 17, 2010 4:09:18 PM
> Subject: [Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner 
> Advertisments
> 
> Hello to the Group, 
> 
> I wanted to advise everyone... one of my computers 
> received a Trojan script netsky infection, from of all 
> places a Yahoo Groups Banner Ad. I have/had all the pro-
> active McAfee Anti-Virus software installed, running and 
> up to date. 
> 
> I found the Norton Extraction tool, Ad Aware and a number 
> of other popular Anti Virus tools don't even see this 
> script, nor are they able to prevent it. You don't want 
> to have your machine on the web once this Trojan is active
> and removing the worm has been a lot of work. 
> 
> McAfee can detect the Ad once it's on the machine after 
> much, much, much homework I found the Kaspersky Anti-Virus 
> Package has been the only one (so far) to be able to detect 
> and clearly prevent this embedded code. 
> 
> virus HEUR Trojan Script iframe 
> 
> http://forum.kaspersky.com/lofiversion/index.php/t100452.html 
> 
> So, please understand you can receive a Trojan Virus just from 
> the Banner Ads in your web browsers display. I'm not sure how 
> this really bad compromise will be sorted out by various web 
> sites... but for the individual I might suggest you ensure your 
> anti-virus software is also installed into your web browser 
> activity and that you ensure it is clearly able to deal with 
> the mentioned compromise. 
> 
> cheers, 
> skipp  
> 
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 

RE: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo Banner Advertisments

[Barry]

Assuming it was not a false the simple running of something like avira and 
another scanner regularily and blocking outgoing requests on all but a few 
ports will be a big start to making things safer 
 Personally I just flush things by a reboot of the virtual machine (solaris 
box) and running in a modified client account in winblows 

To: Repeater-Builder@yahoogroups.com
From: skipp...@yahoo.com
Date: Mon, 18 Jan 2010 01:27:46 +
Subject: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo 
Banner Advertisments


















 



  



  
  
  



Re: Caution to Group Members 

Trojan from Yahoo Banner Advertisements

 

I actually believe I received the trojan from a banner ad 

while setting up new book-marks for one of the radio/repeater 

Groups I frequent.  A newly installed Kaspersky protection 

package on the other computer caught the %$(^*%&  script. 



I have nothing against the other protection programs... but 

I had McAfee, AVG, Norton, Ad Aware and a few others installed 

at various times and machines trying to help and no cigar 

(didn't work for me). I read a a lot of internet forum posts 

regarding this worm, learned about good results people were 

having with Kaspersky, installed the free demo package on a 

replacement windoz machine and went looking at old haunts when 

it tripped an alarm on a/the yahoo banner ad. 



Not fun, not good.  You'll need to learn how to clean/remove 

the trojan with windoz in the safe mode as you'll find out 

it prevents many things from functioning.  Worse case is the 

worm has a built in smtp (email) engine and will send your 

passwords and other information to some very bad people. 



Teaches me for getting away from Linux...  back to a dual 

boot machine. 



s. 



> Mike/W5JR  wrote:

>

> I've spent the last 24 hours on this very issue. And I was on the yahoo site 
> yesterday. :(

> 

> 

> Mike

>







 









  
_
View photos of singles in your area! Browse profiles for FREE
http://clk.atdmt.com/NMN/go/150855801/direct/01/

[Repeater-Builder] Re: CAT-1000 controller for sale

[James Adkins]

I should add that this includes an RME-1000 rack mount enclosure and no
other accessories.

On Sun, Jan 17, 2010 at 8:03 PM, James Adkins wrote:

> Our ham club is selling its spare Computer Automation Technology CAT-1000
> CAT controller, the cadillac of the CAT line.  Controller in great
> condition, e-mail for pics or more details.  Asking $400 shipped.
>
> Cell is 417-840-5261 if you would like to call.
>
> --
> James Adkins, KB0NHX
> Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN)
> www.nixahams.net
>
> Southern Missouri Assistant Frequency Coordinator - Missouri Repeater
> Council
> www.missourirepeater.org
>
> The Nixa Amateur Radio Club - "There is no charge for awesomeness!" (Well,
> only $1.00 per month)
>



-- 
James Adkins, KB0NHX
Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN)
www.nixahams.net

Southern Missouri Assistant Frequency Coordinator - Missouri Repeater
Council
www.missourirepeater.org

The Nixa Amateur Radio Club - "There is no charge for awesomeness!" (Well,
only $1.00 per month)

RE: [Repeater-Builder] FS: Link Comm RLC-DSP404 controllers

[k7pfj]

Eric,

 

I did the same thing with the three I had.

 

 

Mike Mullarkey K7PFJ

 

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kk2ed
Sent: Sunday, January 17, 2010 5:24 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] FS: Link Comm RLC-DSP404 controllers

 

  

For sale:

Two brand new never used Link Comm RLC-DSP404 repeater controllers. Tested
and latest firmware installed. Never mounted or taken out of my shop, so no
scratches on them. The units have been sitting in their boxes on a shelf.
All the supplied accessories (cables, connectors, etc.) are still sealed.

I bought these new awhile back with the intention of linking some of my
sites via IP, but the project has been scrapped.

$1265 each shipped ground conus. Both for $2430 shipped. 

Eric
K2WD

[Repeater-Builder] CAT-1000 controller for sale

[James Adkins]

Our ham club is selling its spare Computer Automation Technology CAT-1000
CAT controller, the cadillac of the CAT line.  Controller in great
condition, e-mail for pics or more details.  Asking $400 shipped.

Cell is 417-840-5261 if you would like to call.

-- 
James Adkins, KB0NHX
Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN)
www.nixahams.net

Southern Missouri Assistant Frequency Coordinator - Missouri Repeater
Council
www.missourirepeater.org

The Nixa Amateur Radio Club - "There is no charge for awesomeness!" (Well,
only $1.00 per month)

Re: [Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner Advertisments

[AA8K73 GMail]

One technique I haven't seen mentioned,
perhaps because everyone does it, is
to set up another sign on without
administrative capabilities.

Whenever I use my e-mail or browser client,
I Log Off my administrative sign on, and
Log On to my non-administrative sign on.
It's a bit of a pain, but can prevent
malware from modifying your system.


I also use Mozilla Firefox instead of
Internet Explorer.  In Firefox, you can
turn off Java script, image downloading,
pop-ups, etc, and it has no Direct-X.

For sites that insist on requiring Java script,
I use the NoScript Firefox add-on.  It will
prompt me whether to allow Java script for
any particular web site.  NoScript can easily
allow sites you approve to always allow Java.

The Firefox FlashBlock add-on prompts you
before running any Flash.  It stops that
vulnerability and is great for stopping
those twitching ads.

Another add-on is Web Of Trust (WOT).  It
puts up amber and red flags on sites that
have problems reported.  But, I digress.


Mike - AA8K


skipp025 wrote:
>  
> 
> Hello to the Group,
> 
> I wanted to advise everyone... one of my computers
> received a Trojan script netsky infection, from of all






Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> Your email settings:
Individual Email | Traditional

<*> To change settings online go to:
http://groups.yahoo.com/group/Repeater-Builder/join
(Yahoo! ID required)

<*> To change settings via email:
repeater-builder-dig...@yahoogroups.com 
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<*> To unsubscribe from this group, send an email to:
repeater-builder-unsubscr...@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/

[Repeater-Builder] New file uploaded to Repeater-Builder

[Repeater-Builder]

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the Repeater-Builder 
group.

  File: /Updated MSR2000 Configuration Jan. 18, 2010.doc 
  Uploaded by : tc27175  
  Description : MSR2000 Configuration - External Controller  

You can access this file at the URL:
http://groups.yahoo.com/group/Repeater-Builder/files/Updated%20MSR2000%20Configuration%20Jan.%2018%2C%202010.doc
 

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles

Regards,

tc27175 
 

Re: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo Banner Advertisments

[Paul Plack]

Has Yahoo been made aware?

  - Original Message - 
  From: skipp025 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 17, 2010 6:27 PM
  Subject: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo 
Banner Advertisments


  I actually believe I received the trojan from a banner ad 
  while setting up new book-marks for one of the radio/repeater 
  Groups I frequent...

[Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo Banner Advertisments

[skipp025]

Re: Caution to Group Members 
Trojan from Yahoo Banner Advertisements
 
I actually believe I received the trojan from a banner ad 
while setting up new book-marks for one of the radio/repeater 
Groups I frequent.  A newly installed Kaspersky protection 
package on the other computer caught the %$(^*%&  script. 

I have nothing against the other protection programs... but 
I had McAfee, AVG, Norton, Ad Aware and a few others installed 
at various times and machines trying to help and no cigar 
(didn't work for me). I read a a lot of internet forum posts 
regarding this worm, learned about good results people were 
having with Kaspersky, installed the free demo package on a 
replacement windoz machine and went looking at old haunts when 
it tripped an alarm on a/the yahoo banner ad. 

Not fun, not good.  You'll need to learn how to clean/remove 
the trojan with windoz in the safe mode as you'll find out 
it prevents many things from functioning.  Worse case is the 
worm has a built in smtp (email) engine and will send your 
passwords and other information to some very bad people. 

Teaches me for getting away from Linux...  back to a dual 
boot machine. 

s. 


> Mike/W5JR  wrote:
>
> I've spent the last 24 hours on this very issue. And I was on the yahoo site 
> yesterday. :(
> 
> 
> Mike
>

[Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner Advertisments

[Mike/W5JR]

I've spent the last 24 hours on this very issue. And I was on the yahoo site 
yesterday. :(


Mike


  

[Repeater-Builder] FS: Link Comm RLC-DSP404 controllers

[kk2ed]

For sale:

Two brand new never used Link Comm RLC-DSP404 repeater controllers.  Tested and 
latest firmware installed. Never mounted or taken out of my shop, so no 
scratches on them. The units have been sitting in their boxes on a shelf.  All 
the supplied accessories (cables, connectors, etc.) are still sealed.

I bought these new awhile back with the intention of linking some of my sites 
via IP, but the project has been scrapped.

$1265 each shipped ground conus. Both for $2430 shipped. 


Eric
K2WD

Re: [Repeater-Builder] MSF 5000 Repeater for sale

[The Rices]

Please note: Those individuals that are asking me if I will ship need to 
understand that the only way I know of shipping this is by freight and I have 
no experience in mounting on a pallet or boxing for shipping.

If you want it to be shipped you will have to arrange shipping and pickup (I 
can have some people on hand to load it on a truck). You will have to find a 
company responsible enough to palletize it and move it out.

Thanks Steve Rice N4YZA

772-664-7238

Re: [Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner Advertisments

[Michael H. Cox]

I'd also recommend malwarebytes, combofix, and superantispyware.


Thanks,

Michael H. Cox
michaelh...@gmail.com

-Original Message-
From: "skipp025" 
Date: Mon, 18 Jan 2010 00:09:18 
To: 
Subject: [Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner 
Advertisments

Hello to the Group, 

I wanted to advise everyone... one of my computers 
received a Trojan script netsky infection, from of all 
places a Yahoo Groups Banner Ad. I have/had all the pro-
active McAfee Anti-Virus software installed, running and 
up to date. 

I found the Norton Extraction tool, Ad Aware and a number 
of other popular Anti Virus tools don't even see this 
script, nor are they able to prevent it. You don't want 
to have your machine on the web once this Trojan is active
and removing the worm has been a lot of work. 

McAfee can detect the Ad once it's on the machine after 
much, much, much homework I found the Kaspersky Anti-Virus 
Package has been the only one (so far) to be able to detect 
and clearly prevent this embedded code. 

virus HEUR Trojan Script iframe 

http://forum.kaspersky.com/lofiversion/index.php/t100452.html 

So, please understand you can receive a Trojan Virus just from 
the Banner Ads in your web browsers display. I'm not sure how 
this really bad compromise will be sorted out by various web 
sites... but for the individual I might suggest you ensure your 
anti-virus software is also installed into your web browser 
activity and that you ensure it is clearly able to deal with 
the mentioned compromise. 

cheers, 
skipp  

[Repeater-Builder] Caution to Group Members Trojan from Yahoo Banner Advertisments

[skipp025]

Hello to the Group, 

I wanted to advise everyone... one of my computers 
received a Trojan script netsky infection, from of all 
places a Yahoo Groups Banner Ad. I have/had all the pro-
active McAfee Anti-Virus software installed, running and 
up to date. 

I found the Norton Extraction tool, Ad Aware and a number 
of other popular Anti Virus tools don't even see this 
script, nor are they able to prevent it. You don't want 
to have your machine on the web once this Trojan is active
and removing the worm has been a lot of work. 

McAfee can detect the Ad once it's on the machine after 
much, much, much homework I found the Kaspersky Anti-Virus 
Package has been the only one (so far) to be able to detect 
and clearly prevent this embedded code. 

virus HEUR Trojan Script iframe 

http://forum.kaspersky.com/lofiversion/index.php/t100452.html 

So, please understand you can receive a Trojan Virus just from 
the Banner Ads in your web browsers display. I'm not sure how 
this really bad compromise will be sorted out by various web 
sites... but for the individual I might suggest you ensure your 
anti-virus software is also installed into your web browser 
activity and that you ensure it is clearly able to deal with 
the mentioned compromise. 

cheers, 
skipp  

RE: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[no6b]

At 1/17/2010 01:13 PM, you wrote:
>Greg,
>
>Trying to combine both vertical and horizontal separation will not help; the
>horizontal will completely swamp the vertical.  As soon as you move the
>transmit antenna out from directly under the receive antenna, the isolation
>decreases dramatically.  Even a few feet of horizontal displacement will
>have a major influence.
>
>For example, CommShop recommends 86 dB isolation for your system with a 20
>watt transmitter and a 0.25 uV receiver.  That isolation can be achieved
>with about 190 feet of vertical separation, one antenna directly above and
>in line with the other, or about 16,200 feet of horizontal separation.

There's a 2 meter repeater about 3000' from my home running ~25 watts.  I 
just checked to see if there's any measurable desense caused by that 
repeater to my FT-8500 radio 600 kHz away.  I do see ~ 1 dB - barely 
noticeable.  The desense is in the form of front-end compression, so any 
decent RX like a Mastr II or Micor wouldn't be bothered at all.

Adding a modest amount of pass cavity filtering to the TX & RX can 
dramatically reduce the amount of antenna separation needed.  My very first 
repeater used 2 antennas separated 50' horizontally with a single pass 
cavity on the TX.  The transceiver was all tube & the RX antenna was a beam 
nulled into the TX antenna.  I had to retune the TX about once every 2 
weeks & keep the sharp null of the Yagi on the TX antenna, but when this 
was done there was no desense.

Bob NO6B

[Repeater-Builder] Motorola R100 programming and PL controller

[wb0shn]

I just bought an R100 and want to play with it on the Ham band - It is supposed 
to come with the programming software but no cable (I can build one - found the 
schematic already).  This repeater is DPL - does anyone have a junk R100 PL 
that a guy might be able to the RX controller (IC or board) out of fairly 
cheap?  From the manual it looks like the IC and a couple cap changes are all 
that would be needed. I'm not sure what needs to be done to get this to program 
out of band, either - has anyone done this that might be willing to explain the 
process to me?  Didn't see too many posts about these when I searched.

Thanks in advance - Dan

Re: [Repeater-Builder] Split Site Via Coax Cables & Wire?

[wd8chl]

thornwal wrote:
> I was thinking about setting up a 2m repeater without duplexers. I
> have lots of space (1,000+ft) at my home QTH (600ft HAAT) but I would
> like to do it without a RF link.  I was going to use a solar panel &
> 12v battery for the RX side (out in the middle of our pasture) and
> have the TX at our house with AC power.
> 
> Could one use coax for audio and wire for COS/PTT? Or would there be
> too much loss/noise at those distances.
> 
> If I had the TX ant 20ft above the RX ant. how do you calculate the
> min. horizontal distance needed? How much isolation is typically
> needed?
> 
> 
> tnx, Greg KD3SU
> 

Well, at 20 W or less, you might get away with it with only a little 
desense. I did it years ago, using an old Motorola 'G' strip for rx and 
an Icom 22A on low power driving a small DyComm 1 in 20 W out amp for 
tx. I had about 4-500' of horizontal sep, but I did the opposite of you, 
with the TX on a 1/4-wave ground plane @ abt 20', and rx on a 
New-Tronics 5dB mobile 'colinear' mounted on a ground radial mount I 
made up, # abt 35'. It had some desense, but was usable for something to 
tinker with...being on a hill helped, and it worked ok.
The path between the two was a Motorola DC remote panel, which allowed 
me to string just a pair of phone wires through the trees.
It was fun, not very practical for long term usage though.

RE: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[Eric Lemmon]

Greg,

Trying to combine both vertical and horizontal separation will not help; the
horizontal will completely swamp the vertical.  As soon as you move the
transmit antenna out from directly under the receive antenna, the isolation
decreases dramatically.  Even a few feet of horizontal displacement will
have a major influence.

For example, CommShop recommends 86 dB isolation for your system with a 20
watt transmitter and a 0.25 uV receiver.  That isolation can be achieved
with about 190 feet of vertical separation, one antenna directly above and
in line with the other, or about 16,200 feet of horizontal separation.  If
you raised one antenna 50 feet, you'd still need about 16,100 feet of
horizontal separation.

A typical vertical antenna has a narrow "cone of silence" directly above and
below it, centered on the axis of the antenna.  That's why you can mount two
antennas one above the other, and have minimum interaction between them.
The cones of silence overlap and essentially augment each other.  This is a
grossly simplified explanation, but you get the idea.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of thornwal
Sent: Sunday, January 17, 2010 12:12 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

  



Eric, 21,000ft is far, for some reason I was thinking it would be less like
1,200ft. I guess I could do a combination of vert and horz.

I was thinking about running 5-20w. My RX rig is 0.25uV, not much difference
from 0.3. 

Thanks for running the data in Commshop.

I was just trying to do something simple with equipment I have and cheaper
than duplexers (having to tune them etc). I have 440 repeater up and
running, but it does not cover that well. I have a IRLP node up on 2m
simplex and it gets out much better. Thought it might be worth a try to set
up a split 2m repeater, maybe not.

Thanks 73

--Greg KD3SU

--- In Repeater-Builder@yahoogroups.com
 , "Eric Lemmon" 
wrote:
>
> Greg,
> 
> The two very important factors you must specify are transmitter power
output
> and receiver sensitivity.
> 
> If we assume 50 watts TX power and 0.3 uV RX sensitivity, my CommShop
> program suggests a minimum isolation of 89 dB, which can be met with 218
> feet of vertical spacing (one antenna directly over the other) or 21,300
> feet of horizontal spacing. As you can see, horizontal spacing has much
> less effect than vertical spacing, and usually is achieved with a radio or
> microwave link. In your particular situation, a single antenna with a
> duplexer will be more efficient and probably less costly than separate
> antennas. Of course, there are many other factors to consider, such as the
> quality of the receiver radio (selectivity, front end design, and
> sensitivity) and the quality of the transmitter radio (carrier purity,
> exciter type, etc.).
> 
> Programs such as CommShop make many assumptions about the equipment, so
the
> above results should be considered as a ballpark estimate.
> 
> 73, Eric Lemmon WB6FLY

Re: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[Chuck Kelsey]

Explain your 440 setup and the coverage. Maybe someone can offer some 
pointers there.

Chuck
WB2EDV


- Original Message - 
From: "thornwal" 
To: 
Sent: Sunday, January 17, 2010 3:12 PM
Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?


>
>
> I have 440 repeater up and running, but it does not cover that well. I 
> have a IRLP node up on 2m simplex and it gets out much better. Thought it 
> might be worth a try to set up a split 2m repeater, maybe not.
>
> Thanks 73
>
> --Greg KD3SU
>

Re: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[DCFluX]

for 1200' I'd take discriminator audio from the RX and convert it to
balanced audio with a transformer or a couple op-amps and send the
balanced audio on a pair of cat-5m. power for the RX can be sent back
on the other 3 pairs, I'd send 24 or 48V and have a 12V regulator at
the other end.

COS can be recovered by the squelch circuit in the TX radio or with a
seperate squelch board.

[Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[thornwal]

Eric, 21,000ft is far, for some reason I was thinking it would be less like 
1,200ft. I guess I could do a combination of vert and horz.

I was thinking about running 5-20w. My RX rig is 0.25uV, not much difference 
from 0.3. 

Thanks for running the data in Commshop.

I was just trying to do something simple with equipment I have and cheaper than 
duplexers (having to tune them etc). I have 440 repeater up and running, but it 
does not cover that well. I have a IRLP node up on 2m simplex and it gets out 
much better. Thought it might be worth a try to set up a split 2m repeater, 
maybe not.

Thanks 73

--Greg KD3SU


--- In Repeater-Builder@yahoogroups.com, "Eric Lemmon"  wrote:
>
> Greg,
> 
> The two very important factors you must specify are transmitter power output
> and receiver sensitivity.
> 
> If we assume 50 watts TX power and 0.3 uV RX sensitivity, my CommShop
> program suggests a minimum isolation of 89 dB, which can be met with 218
> feet of vertical spacing (one antenna directly over the other) or 21,300
> feet of horizontal spacing.  As you can see, horizontal spacing has much
> less effect than vertical spacing, and usually is achieved with a radio or
> microwave link.  In your particular situation, a single antenna with a
> duplexer will be more efficient and probably less costly than separate
> antennas.  Of course, there are many other factors to consider, such as the
> quality of the receiver radio (selectivity, front end design, and
> sensitivity) and the quality of the transmitter radio (carrier purity,
> exciter type, etc.).
> 
> Programs such as CommShop make many assumptions about the equipment, so the
> above results should be considered as a ballpark estimate.
> 
> 73, Eric Lemmon WB6FLY
> 
> 

Re: [Repeater-Builder] RE: follow up on lightening strike last spring response

[K5IN]

Something from left field:

Does the nose have any pattern to it?  My UHF seems to have site noise that is 
possibly generated by a 2.4g digital spread spectrum controller.  At first, it 
seemed like it was regular but I found that a TV stationg jput this system in 
at the same time I changed to a new repeater package and 2 bay half wave spaced 
UHF  Comprod commercial dipole.  Frustrating to say the least but just a 
thought.


Brian
  - Original Message - 
  From: Richard 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 17, 2010 10:47 AM
  Subject: [Repeater-Builder] RE: follow up on lightening strike last spring 
response



  Sorry if I've been late in posting. First, the antenna and hard line is ok. 
We've tested that part out and its working. We think ( I ) that we got zapped 
through a unused phone line which is mounted behind the repeater rack.
  Yes, we have tested the can's using both a IRL (?sp) and a General Dynamics 
service monitor. They were taken apart and cleaned and retuned. Everything 
indicated they were functioning normally. Till we put them back in service. I 
don't know if they were tested with a dummy load. The technicians made many 
trips to the site: the technicians worked for the company that we rent the site 
from. We replaced all of the connectors and only found one that had scorched 
indications on it, but that was all.
  I asked if any of you knew how to find out if a can was operational, because 
all the test equipment that was used indicated they were ok. We finally found a 
workable solution. We added a fifth can, tuned to the transmit freq. That 
stoped the crackling noise. 
  Now we're going to replace the can's, and go with a 6 can configuration. this 
is what was recommended by the technician.

  Rich K8JX

  www.w8usa.org



  

Re: [Repeater-Builder] RE: follow up on lightening strike last spring response

[Jim Lange]

Richard (and everyone else),

I just uploaded a file called antenna_pix.pdf to the group. Our local group had 
an antenna that was real noisy when duplexed but worked great otherwise. We 
spent months trying to fix the issue then decided to replace the antenna. Just 
goes to show noise issues could be anywhere. I hate tower rats!

Jim
WA2RJP

  - Original Message - 
  From: Richard 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, January 17, 2010 13:47
  Subject: [Repeater-Builder] RE: follow up on lightening strike last spring 
response



  Sorry if I've been late in posting. First, the antenna and hard line is ok. 
We've tested that part out and its working. We think ( I ) that we got zapped 
through a unused phone line which is mounted behind the repeater rack.
  Yes, we have tested the can's using both a IRL (?sp) and a General Dynamics 
service monitor. They were taken apart and cleaned and retuned. Everything 
indicated they were functioning normally. Till we put them back in service. I 
don't know if they were tested with a dummy load. The technicians made many 
trips to the site: the technicians worked for the company that we rent the site 
from. We replaced all of the connectors and only found one that had scorched 
indications on it, but that was all.
  I asked if any of you knew how to find out if a can was operational, because 
all the test equipment that was used indicated they were ok. We finally found a 
workable solution. We added a fifth can, tuned to the transmit freq. That 
stoped the crackling noise. 
  Now we're going to replace the can's, and go with a 6 can configuration. this 
is what was reconmended by the technician.

  Rich K8JX

  www.w8usa.org



  

[Repeater-Builder] RE: follow up on lightening strike last spring response

[Richard]

Sorry if I've been late in posting. First, the antenna and hard line is ok. 
We've tested that part out and its working. We think ( I ) that we got zapped 
through a unused phone line which is mounted behind the repeater rack.
Yes, we have tested the can's using both a IRL (?sp) and a General Dynamics 
service monitor. They were taken apart and cleaned and retuned. Everything 
indicated they were functioning normally. Till we put them back in service. I 
don't know if they were tested with a dummy load. The technicians made many 
trips to the site: the technicians worked for the company that we rent the site 
from. We replaced all of the connectors and only found one that had scorched 
indications on it, but that was all.
I asked if any of you knew how to find out if a can was operational, because 
all the test equipment that was used  indicated they were ok. We finally found 
a workable solution. We added a fifth can, tuned to the transmit freq. That 
stoped the crackling noise. 
Now we're going to replace the can's, and go with a 6 can configuration. this 
is what was reconmended by the technician.

Rich K8JX

www.w8usa.org

RE: [Repeater-Builder] Split Site Via Coax Cables & Wire?

[Eric Lemmon]

Greg,

The two very important factors you must specify are transmitter power output
and receiver sensitivity.

If we assume 50 watts TX power and 0.3 uV RX sensitivity, my CommShop
program suggests a minimum isolation of 89 dB, which can be met with 218
feet of vertical spacing (one antenna directly over the other) or 21,300
feet of horizontal spacing.  As you can see, horizontal spacing has much
less effect than vertical spacing, and usually is achieved with a radio or
microwave link.  In your particular situation, a single antenna with a
duplexer will be more efficient and probably less costly than separate
antennas.  Of course, there are many other factors to consider, such as the
quality of the receiver radio (selectivity, front end design, and
sensitivity) and the quality of the transmitter radio (carrier purity,
exciter type, etc.).

Programs such as CommShop make many assumptions about the equipment, so the
above results should be considered as a ballpark estimate.

73, Eric Lemmon WB6FLY


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of thornwal
Sent: Sunday, January 17, 2010 8:16 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Split Site Via Coax Cables & Wire?

  


I was thinking about setting up a 2m repeater without duplexers. I have lots
of space (1,000+ft) at my home QTH (600ft HAAT) but I would like to do it
without a RF link. I was going to use a solar panel & 12v battery for the RX
side (out in the middle of our pasture) and have the TX at our house with AC
power.

Could one use coax for audio and wire for COS/PTT? Or would there be too
much loss/noise at those distances. 

If I had the TX ant 20ft above the RX ant. how do you calculate the min.
horizontal distance needed? How much isolation is typically needed?

tnx, Greg KD3SU

Re: [Repeater-Builder] Split Site Via Coax Cables & Wire?

[James Cicirello]

I wouldn't even consider wire for audio, PTT. Even with a solar site. a
handi talkie on UHF, operating a few mw's would be much better and would
handle the Audio and PTT. Another HT on the TX end would complete your CAS,
PTT, TX,RX Audio.

73 JIM

On Sun, Jan 17, 2010 at 11:16 AM, thornwal  wrote:

>
>
>
> I was thinking about setting up a 2m repeater without duplexers. I have
> lots of space (1,000+ft) at my home QTH (600ft HAAT) but I would like to do
> it without a RF link. I was going to use a solar panel & 12v battery for the
> RX side (out in the middle of our pasture) and have the TX at our house with
> AC power.
>
> Could one use coax for audio and wire for COS/PTT? Or would there be too
> much loss/noise at those distances.
>
> If I had the TX ant 20ft above the RX ant. how do you calculate the min.
> horizontal distance needed? How much isolation is typically needed?
>
> tnx, Greg KD3SU
>
>  
>



-- 
Jim Cicirello
181 Stevens Street
Wellsville, N.Y. 14895
(585)593-4655

[Repeater-Builder] Split Site Via Coax Cables & Wire?

[thornwal]

I was thinking about setting up a 2m repeater without duplexers. I have lots of 
space (1,000+ft) at my home QTH (600ft HAAT) but I would like to do it without 
a RF link.  I was going to use a solar panel & 12v battery for the RX side (out 
in the middle of our pasture) and have the TX at our house with AC power.

Could one use coax for audio and wire for COS/PTT? Or would there be too much 
loss/noise at those distances. 

If I had the TX ant 20ft above the RX ant. how do you calculate the min. 
horizontal distance needed? How much isolation is typically needed?


tnx, Greg KD3SU

[Repeater-Builder] Re: PC for controller

[Skip]

You might be interested in looking at my project called thelinkbox. 
http://sourceforge.net/apps/mediawiki/cqinet/index.php?title=Linkbox-url ,
http://groups.yahoo.com/group/thelinkbox/ 

It started out as an VoIP linking package, but it grew into a
repeater/hub controller. Unlink Asterisk it supports most any audio
device supported by Linux as well as the CM108 based audio dongles
and URI.  If you have a PC with audio and serial or parallel ports
you should be good to go.

Like Asterisk and IRLP thelinkbox runs on only runs on Linux.

73's Skip WB6YMH

--- In Repeater-Builder@yahoogroups.com, "Al Wolfe"  wrote:
>
> The other day some of us were discussing replacing the controller in one 
> of our local repeaters. It is presently an NRHC-4. While throwing ideas 
> around someone suggested why not just use an old PC and sound card. Then we 
> could add bells and whistles as needed. This got us to thinking that maybe 
> this might be a good idea. Then someone said why reinvent the wheel. Why not 
> see what others have done first. So, I'm asking what are your experiences 
> with this concept? What programs are available? Other than some stability 
> issues with Windoz, what are the pitfalls?
> 
> Thanks,
> Al, K9SI
>

[Repeater-Builder] Re: Can a cell phone be used instead of a phone line for repeater control?

[JOHN]

Thanks for all the replys. I'm new on this list and I was pleasantly surprised 
by all the help. Keep up the good work. We need to keep amateur radio alive.

--- In Repeater-Builder@yahoogroups.com, "JOHN"  wrote:
>
> After reading the subject you probably realized I know nothing about 
> repeaters. Our club has an issue with the phone line, that being money. Long 
> story short, can a cell phone be hooked up to a repeater, in place of having 
> a phone line, for use in controlling the machine?
> 
> thanks...
> John  wa3zgl
>

[Repeater-Builder] Sound card controller for repeater

[clow...@va.net]

We have been using EchoStation for about a year now on our county wide  
2 meter and 440 machines. There have been no issues with either. Be  
sure to build the small circuit that monitors the serial line to  
determine if the computer locks up, it kills the ptt line. It has been  
nice to access it with VNC and Hamachi to do total control over the  
web. New messages can be loaded and run as can all the audio and  
timing settings from any networked computer. Both computers are old  
P1's with sound cards and serial ports, nothing special. They were set  
to reboot every night to avoid problems. The EchoStation was set to  
run automatically on boot. I figure the most we would be out would be  
one day without running out to the site.

Charles, NM4V

Re: [Repeater-Builder] Can a cell phone be used instead of a phone line for repeater control?

[Chuck Kelsey]

Exactly. This is ham radio, after all. Keep it simple and cheap. Why pay out 
a monthly fee? Use that money to save for a new antenna.

Chuck
WB2EDV



- Original Message - 
From: "Joe" 
To: 
Sent: Sunday, January 17, 2010 4:35 AM
Subject: Re: [Repeater-Builder] Can a cell phone be used instead of a phone 
line for repeater control?


> Since we lost our phone line for control of one of our repeaters we now
> use a 440 control receiver.  That fulfills the requirement of control on
> a frequency above 222MHz.  But. most of our control activity is done on
> the repeater input frequency.  440MHz is our primary control, and 2
> meters is our secondary control.
>
> 73, Joe, K1ike
>
> MCH wrote:
>> More reliable, but from far fewer locations due to limited coverage of
>> the receiver (vs a nationwide Cell network) and the mandate of having a
>> 440 HT or mobile on you (as opposed to a cellphone which is much
>> smaller). I would also have to say the cell is more secure.
>>
>> Joe M.
>>
>> Chuck Kelsey wrote:
>>
>>> Why not just use a 440 control receiver?
>>>
>>> Chuck
>>> WB2EDV
>>>

Re: [Repeater-Builder] MSF 5000 Repeater for sale

[The Rices]

Ray, I am sending you a private email off list. We have talked before.
Steve
N4YZA 

Others that want can contact me at the email address here removing what is 
obvious: notospamsri...@cfl.rr.com

Re: [Repeater-Builder] Re: Kenwood TKR-901-1 (mod for 902-927 MHz)

[Steven M Hodell]

Thank you...

  - Original Message - 
  From: n2...@hvc.rr.com 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Saturday, January 16, 2010 11:48 PM
  Subject: [Repeater-Builder] Re: Kenwood TKR-901-1 (mod for 902-927 MHz)



  Steve, I started working on a small (8 pin dip) micro that will send
  Ham data to PLL.. It will be pre-programmed with a specific freq...
  So think it of it as buying a xtal.. 

  Hope to get back to the project soon..

  -Pete

  --- In Repeater-Builder@yahoogroups.com, Doug Bade  wrote:
  >
  > I have not been working on that project... I do not know about Pete...
  > 
  > Doug
  > Kd8B
  > 
  > 
  > Steven M Hodell wrote:
  > > 
  > >
  > > Doug / Pete,
  > > 
  > > Any updates on converting the Kenwood TKR-901-1 (mod for 902-927 MHz)?
  > > 
  > > Thank you, Steve.
  > >
  > > - Original Message -
  > > *From:* Doug Bade 
  > > *To:* Repeater-Builder@yahoogroups.com
  > > 
  > > *Sent:* Saturday, January 16, 2010 4:44 PM
  > > *Subject:* Re: [Repeater-Builder] PC for controller
  > > 
  > >
  > >
  >



  

[Repeater-Builder] I need a MRTI cable

[n0fpe]

Anyone have a MRTI cable for a MSF 5000? I have looked high and low with no 
luck. Anyone?

Thanks
Dan

Re: [Repeater-Builder] Can a cell phone be used instead of a phone line for repeater control?

[Joe]

Since we lost our phone line for control of one of our repeaters we now 
use a 440 control receiver.  That fulfills the requirement of control on 
a frequency above 222MHz.  But. most of our control activity is done on 
the repeater input frequency.  440MHz is our primary control, and 2 
meters is our secondary control.

73, Joe, K1ike

MCH wrote:
> More reliable, but from far fewer locations due to limited coverage of 
> the receiver (vs a nationwide Cell network) and the mandate of having a 
> 440 HT or mobile on you (as opposed to a cellphone which is much 
> smaller). I would also have to say the cell is more secure.
>
> Joe M.
>
> Chuck Kelsey wrote:
>   
>> Why not just use a 440 control receiver?
>>
>> Chuck
>> WB2EDV
>>