Re: [Repeater-Builder] Ariels, Aerials, Antenna, Antennae?

[D. Daniel McGlothin, KB3MUN]

That's easy.

The first is my daughter's name.

The others are transducers.

grinning,
73 de Daniel KB3MUN

BTW, http://en.wikipedia.org/wiki/Antenna_%28radio%29 and 
http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F74%2F4454692%2F04455907.pdf%3Farnumber%3D4455907&authDecision=-203
 
if you were looking for definitional help instead of sympathy.

daniel







On 30-Aug-2010 19:48, Gordon Cooper wrote:
>  Here down under, we are presently working through a District
> Planning exercise where the City Fathers think that the words
> Antenna and Aerial mean two quite different things. Should we
> lose, we may well be back to smoke signals.
>
> Gordon ZL1KL
>

RE: [Repeater-Builder] Polyphaser EOL ?

[daniel haines]

Usually the SWR goes up,when the Polyphaser reaches it's EOL, as well as 
reduced receive.
73
Dan
KF8DB
 


To: Repeater-Builder@yahoogroups.com
From: wa3...@comcast.net
Date: Thu, 5 Aug 2010 13:14:28 -0400
Subject: [Repeater-Builder] Polyphaser EOL ?


  





 
Hi folks,
 
We noticed reduced sensitivity at one of our remote receivers recently.  Went 
out to check things. All looked good. SWR to the receive antenna was good. 
Check it with and w/o Polyphaser in line.
Replaced Polyphaser and tested again… same SWR but sensitivity much improved.  
Is this typical for a Polyphaser that has reached EOL?
 
73,
Dave
Wa3gin


  

RE: [Repeater-Builder] Re: how far

[daniel haines]

1 more request for your program.

Thanks, Dan  KF8DB
 


To: Repeater-Builder@yahoogroups.com
From: kevinvalent...@sbcglobal.net
Date: Sat, 24 Apr 2010 21:40:17 -0700
Subject: Re: [Repeater-Builder] Re: how far

  








Sent the program to George, Bon & Hal.
If anyone else wants a copy you can ask myself or them. Please do not post It 
in a file section on any groups, (I look in those), It's copyrighted.
 
It's nothing fancy but does a fairly good job with some nice little utilities 
to boot. Old as dirt but hey I did'nt pay for it either.
 
To the ones that get it, please let me know how you like it. I have another 
that's great for calculating transformers and other such good junk.
 
Enjoy

--- On Sat, 4/24/10, kevin valentino  wrote:


From: kevin valentino 
Subject: Re: [Repeater-Builder] Re: how far
To: Repeater-Builder@yahoogroups.com
Date: Saturday, April 24, 2010, 10:31 PM


  





Allright just found the darn program. Was on an older machine. Norton picks up 
a virus, ARRGH, so i will remove it and send it to ypu. You can share this 
amongst yourselves but I would appreciate if you DID NOT upload it to any files 
section of ANY group , it is copyrighted. Back to removing the NYB, wish me luck

--- On Sat, 4/24/10, kevin valentino  wrote:


From: kevin valentino 
Subject: Re: [Repeater-Builder] Re: how far
To: Repeater-Builder@ yahoogroups. com
Date: Saturday, April 24, 2010, 9:00 PM


  





OK there is a "cute" little program that actually comes fairly close to 
calculating effective radio range based on height, power, line loss(has a cable 
database), and frequency. Add the cavity losses in with the line loss. 
Calculate the portable at 6 feet, unity gain, using worst case terrain type 
scenario. I will send it to you.

--- On Sat, 4/24/10, George  wrote:


From: George 
Subject: [Repeater-Builder] Re: how far
To: Repeater-Builder@ yahoogroups. com
Date: Saturday, April 24, 2010, 8:43 PM


  

ok the antenna is from cell site 14dbm 4-element in a plastic housing, the 
amplifier is 600 watts capable linear mosfet 8element hybrid splitters and 
combiners... but the power supply is up to 65 ampers at 24 volts, driven by a 
"C" class 130 watt amplifier. the antenna is not on a commercial tower (no luck 
here). 20 feet above the house. the line is heliax andrew semi-rigid. the 
repeater is in the attic and the line is 30feet. the duplexer is celwave 
doesn't like more than 450 watts in.

--- In Repeater-Builder@ yahoogroups. com, kevin valentino  wrote:
>
> Any approximation would depend on the repeater antenna height and the terrain 
> of the area.
> I would hate to see the price tag on an 800MHZ 450W amplifier :-)
> I do mean literally "approximation. " Many factors come into play. Especially 
> at high frequencies.
> The length and type of the antenna feedline, gain of antenna used, etc.
> --- On Sat, 4/24/10, George  wrote:
> 
> 
> From: George 
> Subject: [Repeater-Builder] how far
> To: Repeater-Builder@ yahoogroups. com
> Date: Saturday, April 24, 2010, 7:24 PM
> 
> 
> Â  
> 
> 
> 
> what is the range of a 800mhz handheld 4watts with msf5000 repeater 450watts 
> on the antena
>




  

RE: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

[daniel haines]

How long is your feed line? Do you have any toriods on your feed line, where it 
comes in your shack?

 
> To: Repeater-Builder@yahoogroups.com
> From: kt...@ameritech.net
> Date: Tue, 23 Feb 2010 16:01:45 -0600
> Subject: Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF 
> repeaters locked up?
> 
> I was able to match up the audio coming through the repeater and the 
> local AM station. My latest theory is that their signal is so strong 
> that its blowing into the receiver's front end and multiplying/mixing 
> there (past the bandpass filters and all). They are heterodyne receivers 
> after all.
> 
> I'm considering an ICE broadcast high-pass filter that cuts off at 
> 1.8Mhz (model 402). I have an email into them to see how well it might 
> work at 448 Mhz.
> 
> Tony
> 
> tracomm wrote:
> >
> > Had a similiar situation at our site, a station on 106.7 MHz, music on 
> > hang time on many repeaters, intermod runs gave no clue to reason, did 
> > all the usual, grounding, filters no resolve.
> > Turned out to be the STL Marti system on 450.100 MHz, from an close 
> > studio site pointed right at our site, hitting our Rx multicoupler, 
> > mixing with our transmitters. Resolution was low passs & isolater on 
> > the STL system.
> > Make certain which station the broadcast audio is coming from and give 
> > the station engineer a friendly call, may reveal some info to help 
> > your issue.
> >
> > Chris
> > GMRS Inc.
> >
> >
> > --- In Repeater-Builder@ yahoogroups. com 
> > , Tony KT9AC  wrote:
> > Hi everyone,
> > A while ago I was troubleshooting a bad feedback or "growl" problem
> > that was impacting a UHF repeater, of which the short term workaround
> > was to not encode TX PL (PL or DPL would keep it locked until the 
> > signal dropped enough or timed out).
> >
> > In doing some more research, I found a 1250kHz AM station within a 
> > mile or two that changes pattern between day and night. The 
> > interference mentioned above would appear around drive times (like 
> > 5pm) so that had me chasing other sources. Still, it was puzzling that 
> > a 5Mhz signal could be causing the feedback (it didn't appear when 
> > doing normal receiver testing with a service monitor). The recent give 
> > away was that I could hear talking underneath my test signal (like a 
> > sports show).
> >
> > So, if we take the 1250Khz signal or 1.25Mhz x 4 = 5Mhz. I realize 
> > that the 4th harmonic of a 5KW broadcast station isn't very powerful, 
> > but being in its nearfield might be enough to cause a mix with the UHF 
> > transmit output.
> >
> > Does this make sense? This phenomenon can be duplicated with both a 
> > 450 and 440 repeater system - both with standard 5Mhz offsets. I don't 
> > think any sort of filtering would work since the mix happens "in the 
> > air".
> > Only by having split PL's can the lockup be prevented, and equipment 
> > was both MSF5000 and Micor systems, through correctly tuned duplexers.
> > Thanks,
> > Tony
> >
> > 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
  

Re: [Repeater-Builder] HTX-404 ptt pinout

[D. Daniel McGlothin, KB3MUN]

 > HTX-404 HT ... pinouts...

Does http://kb7tbt.com/manuals/ help?  About halfway down is the Radio 
Shack list, including HTX-404--the first entry ( 
http://www.kb7tbt.com/manuals/Radio%20Shack/Radio%20Shack%20HTX-404%20Owners%20Manual%20and%20Schematic.zip
 
) seems to have it all, several times over.

73 de Daniel KB3MUN

[Repeater-Builder] Re: 6-m Very Heavy Duty Antenna For Repeater Use

[Daniel Ransom]

Check the Kreco line of antennas.  They have a 6-m coaxial dipole that
should perform as well as or slightly better into the valleys than the
j-pole antenna.  You have two options the CO-41A or the CO-41H, depending
upon your bank account and the weather severity of your site.  The shunt
feed keeps away static on receive, and lightning away from your equipment.

 

I'm not affiliated with Kreco in any way.

 

Regards,

 

Dan at K7MM, VU3MMW

 

[Repeater-Builder] 18-MHz Channel Elements?

[Daniel Ransom]

I am thinking about using a Mitrek direct-FM channel element in my Midland
13-509 transmitter.  Have you had experience with making these channel
elements work at 18 MHz?

 

Regards,

 

Dan at K7MM, VU3MMW

 

Re: [Repeater-Builder] Hard Line Coax Connectors

[D. Daniel McGlothin, KB3MUN]

 > Is there any interest in a mess of hardline connectors, the
 > type used by the cable TV outfits?

Walt,

I would be interested in 1/2" and 3/4" sized connectors of the CATV 
hardline.  I have just acquired some and am starting to think about 
necessary connectors.  

I'm new to this stuff, so any tips or best-practices would be well 
received.  I was considering adapting the PL-259 connector using the 
threaded-to-sweat copper fitting as described a couple of places on the 
'net.

73 de Daniel KB3MUN

Re: [Repeater-Builder] COR board for simple repeater??

[D. Daniel McGlothin, KB3MUN]

[Shrug]  It just worked for me.  ;) 

I archived copies of the simple interface pages...can I answer any 
questions for you?

73 de Daniel KB3MUN



Jim Cicirello wrote:
>
>
> Hey guys did this site change? I looked it up and it was there, 
> checked it again all I see is ads.
>
>  
>
> 73 JIM  
>
>  
>
> *From:* Repeater-Builder@yahoogroups.com 
> [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of *D. Daniel 
> McGlothin, KB3MUN
> *Sent:* Thursday, September 03, 2009 7:19 PM
> *To:* Repeater-Builder@yahoogroups.com
> *Subject:* Re: [Repeater-Builder] COR board for simple repeater??
>
>  
>
>  
>
> Perhaps I'm misunderstanding what you are looking for.
>
> The bottom two images at
> <http://www.hs9dmc.com/repeater/vox/handy-to-handy_kitchen-house.htm> 
> seem to show the two HTs linked by the dual circuit shown on the page 
> using the speaker and mic jacks.
>
> A different circuit shown on
> <http://www.hs9dmc.com/repeater/repeater_handy2way.htm> appears to be
> wired directly to the HT circuit boards.
>
> 73 de Daniel KB3MUN
>

Re: [Repeater-Builder] COR board for simple repeater??

[D. Daniel McGlothin, KB3MUN]

Perhaps I'm misunderstanding what you are looking for.

The bottom two images at 
<http://www.hs9dmc.com/repeater/vox/handy-to-handy_kitchen-house.htm> seem to 
show the two HTs linked by the dual circuit shown on the page using the speaker 
and mic jacks. 

A different circuit shown on 
<http://www.hs9dmc.com/repeater/repeater_handy2way.htm> appears to be 
wired directly to the HT circuit boards.

73 de Daniel KB3MUN


gervais wrote:
> Well Daniel
> it helped me a lot
> i can see the little interface between the 2 portable radios
> it is what i need,but he is not using the 2 connectors on the radio,
> the mic and speaker 
>
> 
>
> thanks
> gervais ve2ckn
>
>
> ------
> From: "D. Daniel McGlothin, KB3MUN" 
> Sent: Thursday, September 03, 2009 7:19 AM
> To: 
> Subject: Re: [Repeater-Builder] COR board for simple repeater??
>
>   
>> Azman may have been referring to this link for HT to HT:
>>
>> http://www.hs9dmc.com/repeater/vox/handy-to-handy_kitchen-house.htm
>>
>> The schematic and pictures transcend the language barrier.
>>
>> The second grouping from the bottom seems to be the collection of 
>> repeating interfaces.  Hovering the mouse over the links will show the 
>> link name in the status bar.  From that, you can determine the content 
>> of the other links in the group.
>> 

Re: [Repeater-Builder] COR board for simple repeater??

[D. Daniel McGlothin, KB3MUN]

Azman may have been referring to this link for HT to HT:

http://www.hs9dmc.com/repeater/vox/handy-to-handy_kitchen-house.htm

The schematic and pictures transcend the language barrier.

The second grouping from the bottom seems to be the collection of 
repeating interfaces.  Hovering the mouse over the links will show the 
link name in the status bar.  From that, you can determine the content 
of the other links in the group.

73 de Daniel KB3MUN

gervais wrote:
>
>
> Hi Azman
> well i have checked the web site,
> it is written in a language that i dont understand,,
> i only see pictogramm ,,,it must be the letters.
> but thanks anyway
> it was appreciated
> gervais ve2ckn
>  
>
> *From:* Azman Ismail <mailto:azman4...@yahoo.com.my>
> *Sent:* Wednesday, September 02, 2009 10:46 PM
> *To:* Repeater-Builder@yahoogroups.com 
> <mailto:Repeater-Builder@yahoogroups.com>
> *Subject:* Re: [Repeater-Builder] COR board for simple repeater??
>
>
> Hi Gervais' You can check with this site www.hs9dmc.com 
> <http://www.hs9dmc.com>. Regards 9w6man
> --- Pada *Khm, 20/8/09, Rick Szajkowski / <mailto:va3r...@gmail.com>>/* menulis:
>
>
> Daripada: Rick Szajkowski  <mailto:va3r...@gmail.com>>
> Subjek: Re: [Repeater-Builder] COR board for simple repeater??
> Kepada: Repeater-Builder@yahoogroups.com
> <mailto:Repeater-Builder@yahoogroups.com>
> Tarikh: Khamis, 20 Ogos, 2009, 6:27 AM
>
>  
> hi Gervais I have such a item .. its an alinco controller it was
> ment to have 2 HTs on it .. or even one and then act as a 'parrot'
> repeater
>
> if you would like more info email me off list
>
> On Wed, Aug 19, 2009 at 5:19 PM, gervais <http://my.mc760.mail.yahoo.com/mc/compose?to=ve2ckn%40hotmail.com>>
> wrote:
> >
> >
> > Hi all
> > i am looking a COR board that i could use between 2
> walkie-talkie that would
> > be used here as a replacement for my regular repeater in case of
> accident.
> > i have seen this many years ago,an amateur built his own
> repeater with 2
> > talkie's,simple and efficient.
> > So maybe someone know where i could find such a
> board,,,controler what ever
> > you call it,no need for queue,,,just a simple repeater.
> >
> > thanks
> > Gervais ve2ckn
>

RE: [Repeater-Builder] Re: Antenna SWR = Desense?

[daniel haines]

Why don't you raise the antenna, and get the repeater out of the RF field?
 


To: Repeater-Builder@yahoogroups.com
From: tahr...@swtexas.net
Date: Wed, 2 Sep 2009 21:32:35 +
Subject: [Repeater-Builder] Re: Antenna SWR = Desense?

  



Hi Scott,

The 100' of separation is from the repeater to where the
antenna is located.

I have a Telewave 6 cavity BpBr duplexer on the system.

Single feed to one antenna.

Thanks,

Tim W5FN

--- In Repeater-Builder@yahoogroups.com, "Scott Overstreet"  wrote:
>
> Tim---
> 
> I forgot that you spoke of 100' antenna separation. This suggests no 
> duplexer and two feedlines. The meat of my story is still good---a corroded 
> transmit antenna is capable of making and radiating allot of receive 
> frequency noise ---even with between antenna pattern attenuation, there 
> might well be enough to desense your receiver.
> 
> Scott
> 
> - Original Message - 
> From: Scott Overstreet
> To: Repeater-Builder@yahoogroups.com
> Sent: Wednesday, September 02, 2009 1:24 PM
> Subject: Re: [Repeater-Builder] Re: Antenna SWR = Desense?
> 
> 
> 
> Tim
> 
> Been there and done that!
> 
> My guess is that you have corrosion in the antenna on top. The corrosion 
> makes a good wide band rectifier of your transmit power and produces 
> sufficient noise at your receive frequency to get back through your duplexer 
> and into your receiver as desense. Actually, come to think about it, the end 
> result of the situation is simular to bad LMR-400.
> 
> Scott, N6NXI
> - Original Message - 
> From: tahrens301
> To: Repeater-Builder@yahoogroups.com
> Sent: Wednesday, September 02, 2009 9:56 AM
> Subject: [Repeater-Builder] Re: Antenna SWR = Desense?
> 
> 
> 
> Hi All,
> 
> And the winner is. Door # 2.
> 
> Put the 2 meter vertical up on the stick at the end of
> the hard line, & the desense was worse!
> 
> Perfect match at the feed line end.
> 
> Took dummy load & put on far end of hard line & no desense.
> 
> Guess it is the proximity to the antenna. Although about 100',
> guess the RF is getting back into the box.
> 
> Gonna set the antenna party for Friday morning. The stuff
> is going up on the tower (unless somebody can see some flaw
> in my logic & can suggest  test)!
> 
> Thanks again to all!
> 
> Tim W5FN
> 
> 
> 
> 
> 
> --
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.409 / Virus Database: 270.13.75/2340 - Release Date: 
> 09/01/09 20:03:00
> 
> 
> 
> 
> 
> --
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.409 / Virus Database: 270.13.76/2342 - Release Date: 09/02/09 
> 18:03:00
>

Re: [Repeater-Builder] Unknown motorola repeater pls help......

[Razvan Daniel]

Dear Savy, 
 
 
That's not a Motorola! It is a Storno. We had the older model, mostly used for 
the special sevices. It is very reliable and some are still in use, even they 
are more than 20 years old. The trouble with them is that they use Xtal 
oscillators, and are hard to find and tune. My guess is to leave it be, and 
find some easy to program newer models.

--- On Fri, 8/28/09, Saviour Otsemobor  wrote:


From: Saviour Otsemobor 
Subject: [Repeater-Builder] Unknown motorola repeater pls help.. [8 
Attachments]
To: Repeater-Builder@yahoogroups.com
Date: Friday, August 28, 2009, 12:20 PM


  


[Attachment(s) from Saviour Otsemobor included below] 







Hello All,
i have a motorola repeater here with me whose picture is also attached here , 
there  is really nothing written much on the body of the repeater to be able to 
indentify it , except on the little sticker in front of it written . Storno 
Electronics  Made in Germany,  VHF repeater and some type numbers written ,  . 
i was looking for a way on  how i can program the repeater and put it to use.  
Pls any help and infor on it will be greatly appreciated .
regards
savy
















  

Re: [Repeater-Builder] how can i link 2 vhf repeaters?

[Razvan Daniel]

Dear Azam,
 
 
The repeaters I bulit are made from 2 VHF GM300 and 1 UHF GM300. I will send 
you soon all the diagrams. Everything is working good, I had some little 
problems because the 2 VHF radios are 2 CH and the UHF radio is 16 CH. It seems 
that the audio inputs and outputs are not quite compattible between the two 
diffrent series. My advice to you is to first find three sets of either 2 CH or 
16 CH radios and then begin work. I am now working on repeater made by two 
repeaters, at the same location, one for VHF (local traffic) and one for UHF 
(wich will act as a repeater for the UHF links) in order to achieve greater 
distance and more network components, since our network is made of 4 VHF 
repeatres wich we intend to link together.

 
Regards, 
YO2MBK
Buie Daniel Razvan
RADIOCOM Bihor
 
 


  

Re: [Repeater-Builder] how can i link 2 vhf repeaters?

[Razvan Daniel]

Hello, 
 
I done it by using 2 GM300 radios, one for each repeater. I designed the 
automatics. I had some issues with the audio levels and impendances, now I'm 
trying to fix that by using opamp stages. It works pretty good. The repeaters 
are made with GM300's also. The next step for me is to put another repeater 
into the network, that will basically be a link between the links, if that 
makes any sense to you. I'll let you know if it will work. On paper it does, 
we'll se if it does tha same in teh field...
 
 
Regards, 
YO2MBK - Razvan
RADIOCOM Bihor

--- On Fri, 7/31/09, sv2hql  wrote:


From: sv2hql 
Subject: [Repeater-Builder] how can i link 2 vhf repeaters?
To: Repeater-Builder@yahoogroups.com
Date: Friday, July 31, 2009, 9:42 AM


  



hi all a have a big question how it is possible to make a link between two 
vhf repeater? both repeaters is yaesu vertex standart!! than 

















  

Re: [Repeater-Builder] Need circuit -- COS Sense & AF Amplify

[Razvan Daniel]

Hey, 
 
The reverse of polarity is very simply achieved by using a one transistor stage 
that will invert the input signal. For the audio boost use a TL071 opamp stage 
circuit. 
 
If you need further assistance please provide some documentation (schematic or 
other relevant material) because I have never worked with the equipment in 
cause and I don't know it by heart.
 
Regards, 
Buie Daniel Razvan
RADIOCOM Bihor
www.radiotelecomunicatii.ro
 
 


--- On Mon, 7/13/09, John Transue  wrote:


From: John Transue 
Subject: [Repeater-Builder] Need circuit -- COS Sense & AF Amplify [1 
Attachment]
To: Repeater-Builder@yahoogroups.com
Date: Monday, July 13, 2009, 6:42 AM





[Attachment(s) from John Transue included below] 


I need to interface a link receiver (Icom F221S) with an ACC RC-850.
This presents two problems. First, the Icom receiver uses active low
COS, and the RC-850 doesn't seem to have a means to select the sense
of a link receiver. The repeater receiver (Midland BaseTech II) uses
active high COS. Second, the discriminator audio output from the Icom
is about 0.6 Vp-p, but the RC-850 hardware manual says the audio input
should be between 1 and 5 Vp-p. 

I have posted the first problem to the ACC group but have received no
reply. Yes, the ACC manual says to insert a 47K resistor in a
specified place to increase sensitivity. I can do this but it requires
I take the repeater out of operation for a day or so. 

It occurs to me that a circuit to reverse the sense of the COS might
be available from this group. Also, a simple amplifier circuit could
solve the AF level problem. I know this is all elementary, but I am
not competent to design these simple circuits. I will gladly build
them. I would appreciate any help you can provide on the design. 

Thanks.

John Transue AF4PD 
















  

Re: [Repeater-Builder] Maxon sm4450sc

[Razvan Daniel]

Hey, 
 
You can use the external card, just shield it as well as possible by placeing 
it into a metal grounded case and using double or triple shieldee coaxial 
condutors to link it to the radio. This wil prevent any interference from 
dispurbing the useful signals. This having said, please take into consideration 
that if the TX antenna is at least several meters away then you should check 
the feeder, connectors and antenna reflected wave, since this diturbance should 
not normlly happen in good configuration. I have also noticed that for some 
reason, the internal decoder takes a wihile to react to the carier CTSS signal. 
It may be a design glitch or it may be possible that a optional delay might 
exist via software. I never checked. For these reasons, I think the external 
card is best. 
 
Regards, 
 
Buie Daniel Razvan
RADIOCOM Bihor
004 741 133740
buie.raz...@radiotelecomunicatii.ro
www.radiotelecomunicatii.ro
 

 

--- On Fri, 7/10/09, kerinvale  wrote:


From: kerinvale 
Subject: [Repeater-Builder] Maxon sm4450sc
To: Repeater-Builder@yahoogroups.com
Date: Friday, July 10, 2009, 4:35 AM













Hi guys .I have a maxon sm4450sc  that is setup for rx ctcss decode in a 
repeater and it is  decoding ctcss ok but it  only activates the call led when 
the signal is over the squelch level. I am wondering is there a way that the 
radio decoder can be on  all the time so even if the signal is below the 
squelch the radio will activate the call led without affecting the audio 
squelch level.
I tried to use ctcss external decoder card and they work great with direct 
connection to the receiver audio out from the detector but as I have found out 
recently with the cards outside the radio they are affected badly with rf when 
the transmitter is activated if the leads are too long so I have setup the 
radio to decode the ctcss and this is working well but it is slow to activate 
the repeater.I am trying to set the receiver up that it will decode as soon as 
the signal is present instead of it needing it to be over the squelch level 
before decoding. 
 


Thank You,
Ian Wells,
Kerinvale Comaudio,
361 Camboon Road.Biloela. 4715
Phone 0749922574 or 0409159932
www.kerinvalecomaud io.com.au
  


 






















  

[Repeater-Builder] Needed: Low-Band Bandpass Cavity

[Daniel Ransom]

Do you have a low-band bandpass cavity I can use on my new six-meter
repeater (53.750 MHz, -1.7 MHz split)?

 

I have the double-notch DB-4032A duplexer all tuned up and ready to go, but
my site owner requires at least one bandpass cavity on the TX output.

 

Regards,

 

Dan at K7MM, VU3MMW

 

[Repeater-Builder] Re: Six-Meter Isolator Circulator

[Daniel Ransom]

I contacted Sinclair about the I1 circulator available in ZL-land.  Here is
their response:  " These circulators are built to order and have a very
narrow tuning range.  I checked with our technicians and we are not sure how
you came to have one at 47 MHz, but they don't believe that we will be able
to retune it to 53.75 MHz.  And unfortunately because this new frequency is
below 60 MHz, I can't even provide you with a quote for a new circulator.

 

I continue working with EMR for a custom unit.

 

Regards,

 

Dan at K7MM, VU3MMW

 

Re: [Repeater-Builder] Re: Ham installation quality/non-quality

[Daniel L. Fargo]

 you know it. And if you're touchy about it because you
personally have such an installation, get it down off the commercial
site and put it in your backyard where it won't be a mess for others to
deal with.

> Have a great day!

Already having it! You too. :-)

Nate WY0X
--
Nate Duehr
n...@natetech.com <mailto:nate%40natetech.com>




--
Daniel L. Fargo
KB3EMH
General Class Amateur Radio Operator
---
Signal Maintainer 
Subdivision 3

Western New York & Pennsylvania Railroad
- 
Vice-Chairman

Columbus Township General Authority
--
Need an office program? Why not try OpenOffice.org
www.openoffice.org

RE: [Repeater-Builder] Computer noise in 2M Repeater

[Razvan Daniel]

Try to find several a ferrite antennas, used in older SW/LW radios.Wind around 
it 10-15 turns of the CAT5 UTP cable at each end of the two cables, separately. 
If you have industriea ferrite beads it is even better, but use the large kind, 
enough to accept at least 10 windings. Another very good thing is to ground 
both of the instalations (Wireless and Repeater). Also, like someone said, 
remove the normal cable end install shielded UTP cable instead. Be sure that 
the shielding of the cable is grounded also. If all this fails, there is a 
remote possiblity that the Wireless sistem has some flaw that results in high 
reflected wave and harmonics that translate into your receiver system. 
 
Best regards, YO2MBK.


  

RE: [Repeater-Builder] Re: Quieting duplex noise from a tower

[daniel haines]

ATIS , VORs transmit from 112 Mhz to 120 Mhz AM , continuous... Aircraft band 
goes from 112-138 Mhz AM Some aircraft band HTs will recieve VOR transmission 
and give you the bearing to/from the VOR..
 


To: Repeater-Builder@yahoogroups.com
CC: paul_n1...@myfairpoint.net
From: mwbese...@cox.net
Date: Wed, 18 Mar 2009 08:10:29 -0400
Subject: Re: [Repeater-Builder] Re: Quieting duplex noise from a tower





Paul,

Actually, if you're near enough to the airport, you should be able to hear the 
ATIS (Automatic Termininal Information System) broadcast. It repeats 
airfield/weather information continously. That'd be a constant (although 
perhaps not weak) signal in the aircraft band.

Mike
WM4B

 Paul N1BUG  wrote: 
> > Aircraft handhelds are AM in the 120MHz region. Some handheld
> > scanners do aircraft AM just fine.
> 
> Ah! Somehow that hadn't occurred to me. The president of our club is 
> a pilot and has one.
> 
> I guess there are no weak, constant signals in the aircraft band (?) 
> but maybe it's not necessary. I will try climbing the tower with it 
> and see if it does anything when I move or vibrate guy wires and 
> other hardware with the repeater transmitter on of course. It's 
> possible the aircraft handheld will just be desensed by 2 meter RF 
> and unable to hear the noise (?) but it will be interesting to see 
> what happens.
> 
> Paul N1BUG

Re: [Repeater-Builder] BRAMCO Reeds

[Daniel Fargo]

Try to even find a 2+2 decoder today they are no longer even in 
production. I believe Bramco  was the last to produce  them and they 
don't anymore. Our county switched to 5/6 tone for the new weather sirens.

Daniel L. Fargo KB3EMH
General Class Amateur radio operator
--  




George Henry wrote:
> Wa back when (~25 yrs.), I picked up a Bramco 2+2 decoder at a 
> hamfest for $2.00.  Jumpered around the second decoder chain to make it a 
> plain 2-tone sequential decoder and used it with a R/S scanner for my local 
> FD dispatch tones.  Seems to me I used Motorola 'sponder reeds from a 
> Pageboy in it, and it worked FB  Memories.
>
> George, KA3HSW / WQGJ413
>
> - Original Message - 
> From: "Captainlance" 
> To: 
> Sent: Tuesday, March 10, 2009 4:38 PM
> Subject: Re: [Repeater-Builder] BRAMCO Reeds
>
>
> BRAMCO reeds were made for a number of 2-way companies over the years, the 
> color of the reed in meaningless. Each manufacturer selected what they 
> wanted, light blue,  dark blue, red, silver, bronze, etc. likewise, coil 
> impedances were variable as well, from 500 to 5K ohms. if you have the stock 
> number, usually beginning with an "A0", I can probably tell you what you 
> have. Decoders can be used as senders, however the drive is higher to get 
> them to fire off reliably. note too that the Bramco reeds are position 
> sensitive... especially below 100 hz...if you are going to use mechanical 
> reeds for an application, try to get old Motorola "gold" reeds, TU217 sender 
> and TU333 sponder, they were better in all aspects, especially sensitivity 
> to close in the sponder reeds.
> Lance N2HBA
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>
>   







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Re: [Repeater-Builder] Today's funny two-way radio story (March 09). The Siren - PA Speaker War

[Daniel Fargo]

Yes that is a good one I liked it also. You just never know what 
neighbors will do.


Dan KB3EMH




Rick Szajkowski wrote:


Thanks Skipp needed a chuckle !

On Sat, Mar 7, 2009 at 11:39 AM, skipp025 > wrote:


Re: Today's funny two-way radio story (March 09).

The Siren - PA Speaker War

Today's very funny story was told to me by a friend after my
seeing the evidence in a shop.

A service call to fix the Siren on a Public Safety Vehicle
with reported problematic volume level. Most radio type service
people have a test method or routine to find the failed speaker,
pa amplifier, broken wire or blown fuse.

Lots of output voltage to the vehicle front mounted speaker,
the type of which are sometimes problematic from weather/water
damage. Off to the front bumper...

Can't seem to get the speaker cone off... normally a tight but
not a frozen screw-on fit. Out come the serious tools to break
the speaker cone free.

So... after a lot of work the cone comes off and there's a
permanent thread locking glue on the cone threads. Hummm...?

Wait! there's foam and a rubber plug inside the cone..? Someone
wanted to reduce the speaker output level and lock it in place?

Care to guess what's going on..?

Well Sailors...

A bit of detective work to figure out the owner of the vehicle
has/had a habit of testing his full volume PA & Siren functions
very early every morning, while pulling out of his house/drive way.

One of his nearby neighbors didn't appreciate the everyday wake
up call and finally did the foam/rubber plug muffle trick and
mounting thread lock to the bumper mounted siren speaker cone.

Life goes on...

Epilog:

I/we do use the rubber plug and foam trick to reduce PA - Siren
Volume levels while testing equipment. Helps on hearing and
annoyance levels.

Your results will probably vary...

cheers,
s.

Re: [Repeater-Builder] Q2220E

[daniel shields]

wow its mike i have not talked to you in a few years this is dan KE7BNZ from 
medford i used to talk on the system that you and chris had hope all is well i 
saw your add on the repeater builders site...    Laurie and i are well we live 
in washington now and own a businees here doing security well take care email 
back if u want firefighterdan7...@yahoo.com

--- On Mon, 3/2/09, k7...@comcast.net  wrote:

From: k7...@comcast.net 
Subject: [Repeater-Builder] Q2220E
To: repeater-builder@yahoogroups.com
Date: Monday, March 2, 2009, 7:04 AM












Does anybody have a Sinclair Q2220E they would like to sell for a 
new club reepater. Please contact me off the list.
 
Thanks,
 
 
Mike K7PFJ
303-718-8052



 

  




 

















  

RE: [Repeater-Builder] OT: Chicken Stick

[daniel haines]

Stick with fiberglass. Why are you probing the anode of a klystron??
Dan KF8DB



To: repeater-buil...@yahoogroups.comfrom: mwbese...@cox.netdate: Tue, 3 Feb 
2009 18:19:12 -0500Subject: RE: [Repeater-Builder] OT: Chicken Stick





I’d be wary of wood… it can attract enough moisture to become conductive.
 
Mike
WM4B
 



From: Repeater-Builder@yahoogroups.com 
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Ken ArckSent: Tuesday, 
February 03, 2009 6:03 PMTo: repeater-buil...@yahoogroups.comsubject: Re: 
[Repeater-Builder] OT: Chicken Stick
 



At 02:22 PM 2/3/2009, dallasreact112 wrote:>Does any one know where I can 
obtain a fiberglass "chicken stick"?>I had one at Collins Radio that was about 
a foot long, 1/4 inch in>diameter and would like to obtain the same. It is sure 
a lot safer>probing around the anode of a Klystron with a chicken stick than 
a>metal screwdriver.<---Then again there's always wood. Never had a problem 
with a kiln dried dowel 
beforeKen--President
 and CTO - Arcom CommunicationsMakers of repeater controllers and 
accessories.http://www.arcomcontrollers.com/Authorized Dealers for Kenwood and 
Telewave andwe offer complete repeater packages!AH6LE/R - IRLP Node 
3000http://www.irlp.net"We don't just make 'em. We use 'em!"

 

Re: [Repeater-Builder] Reasonably low wind load antenna

[Daniel Brown]

On Tue, Jun 24, 2008 at 7:47 AM, Ron Wright <[EMAIL PROTECTED]> wrote:

> Your wind loading limits will require a smaller, lower gain antenna. If ice
> is a problem the Ringo-Ranger will probably not last that long.
>
> I would recommend going to www.tessco.com, a distributor of 2-way gear, and
> check thru their antenna section. They have a number of finnne manufactures
> with their specs.

not to point out the obvious, but the Ringo is actually among the
antennas Tessco offers:

http://www.tessco.com/products/displayProducts.do?groupId=340&subgroupId=30



-- 
Dan Brown
[EMAIL PROTECTED]
http://www.brauhaus.org

[Repeater-Builder] Micor Repeater can not use TS-64

[Daniel M LePage]

I have a Micor repeater that I can not get the CTCSS tone through the 
receiver. I can get a good 1Khz tone but when I try and put a CTCSS 
tone through the receiver it is broken up. 
I did not convert this Micor and it will operate as a repeater with out 
a CTCSS tone. 
It does have a  circuit that says "RX audio out (White) has a about a 6 
Db notch at 100hz". I take it this is what is causing the problem. Can 
someone point me in the right direction on this one. 

73's 
Dan /WA1OOH

Re: [Repeater-Builder] Fw: DB-228

[Daniel]

Here is your spec sheet
 http://www.wiscointl.com/decibel/dipoles/db228.htm
Maire-Radios wrote:

 

Does
anyone out there us a DB-228 antenna for there 2 meter repeater?

 If so
how do you like the way it works?  Could you sent me some info about
your set up? Anyone
have a link to a spec. sheet? thanks 
John 















  




  
  
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Re: [Repeater-Builder] Azden PCS-4000

[Daniel]

I can't remember the battery number, but it is the same as the CR2032, only with
solder tabs.
DanielKC4PLC


Glen Briggs Aka KBØRPJ wrote:

> Anyone know much about this radio..moreover, anyone know what battery it
> takes.. the battery was removed by a previous owner, wanting to use it as a
> link radio, but w/o the battery, it won't hold a memory
>
> Thank You for your time,
>
> Glen Briggs - KBØRPJ
> Grundy County Amateur Radio Emergency Services Coordinator
> http://grundy.ares-mo.org/ - North Central Missouri Amateur Radio Club
>
> ---
> This message has passed an anti-virus scan using the avast! anti-virus 
> system, database: 0603-4, 01/20/2006
>
>
> Yahoo! Groups Links
>
>
>
>






 
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Re: [Repeater-Builder] Johnson 550 question

[Daniel]

Tony,
Here is a drawing of the connector on the back of the radio.  You can short out
pins 2 and 3, the coil is used for a DC filter, as well as the cap is used part
of
the filter.  I hope this helps.
DanielKC4PLC



tony dinkel wrote:

> any one of y'all got a johnson 550 manual.  I'm trying to get one powered up
> for a friend and have no power cord.  I have ground on pin 1, +12 on pin 4.
> Where else do I need to put +12?
>
> tnx,
> Yahoo! Groups Links
>
>
>
>




 
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<>

Re: [Repeater-Builder] GMRS Repeater Info Wanted

[Daniel Fargo]

http://www.access.gpo.gov/nara/cfr/waisidx_03/47cfr95_03.html
§ 95.129 Station 
equipment.
Every station in a GMRS 
system
must use transmitters the FCC has 
certificated
for use in the GMRS. Write 
to
any FCC Field Office to find out if 
a
particular transmitter has been 
certificated
for the GMRS. All station 
equipment
in a GMRS system must comply
with the technical rules in part 
95.
[63 FR 68975, Dec. 14, 1998]
 
§ 95.29 Channels 
available.
(a) For a base station, fixed station,
mobile station, or repeater station (a
GMRS station that simultaneously 
retransmits
the transmission of another
GMRS station on a different channel or
channels), the licensee of the GMRS
system must select the transmitting
channels or channel pairs (see § 95.7(a)
of this part) for the stations in the
GMRS system from the following 462
MHz channels:
462.5500, 462.5750, 462.6000, 462.6250, 
462.6500,
462.6750, 462.7000 and 
462.7250.
(b) For a mobile station, control station,
or fixed station operated in the
duplex mode, the following 467 MHz
channels may be used only to transmit
communications through a repeater
station and for remotely controlling a
repeater station. The licensee of the
GMRS system must select the transmitting
channels or channel pairs (see
§ 95.7(a) of this part) for the stations
operated in the duplex mode, from the
following 467 MHz channels:
467.5500, 467.5750, 467.6000, 467.6250, 
467.6500,
467.6750, 467.7000 and 467.7250.
 
§ 95.135 Maximum authorized transmitting
power.
(a) No station may transmit with
more than 50 watts output power.
(b) [Reserved]
(c) A small control station at a point
north of Line A or east of Line C must
transmit with no more than 5 watts
ERP.
(d) A fixed station must transmit
with no more than 15 watts output
power.
(e) A small base station must transmit
with no more than 5 watts ERP.
[48 FR 35237, Aug. 3, 1983, as amended at 
53
FR 47717, Nov. 25, 1988; 63 FR 68975, Dec. 
14,
1998]

  - Original Message - 
  From: 
  Joe 
  Montierth 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Sunday, July 11, 2004 9:53 PM
  Subject: Re: [Repeater-Builder] GMRS 
  Repeater Info Wanted
  --- Q <[EMAIL PROTECTED]> wrote:> 
  You are wrong,it is illegal. Doesnt mean all those> people were 
  right,that> doesnt make it legal. They just havent been caught> 
  yet...>   Please cite the FCC rule that would make 
  thisillegal, I have read and re-read the rules for yearsnow, and have 
  yet to find one that bans mobile radiosas repeaters (or handhelds for that 
  matter).Joe__Do 
  you Yahoo!?New and Improved Yahoo! Mail - 100MB free storage!http://promotions.yahoo.com/new_mail 
   Yahoo! Groups Links<*> To visit 
  your group on the web, go to:    http://groups.yahoo.com/group/Repeater-Builder/<*> 
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Re: [Repeater-Builder] RC-100 Controller Manual

[Daniel Fargo]

Title: MOT PN - GOT IT - Thank You!





Thanks Richard
 
We encountered a minor problem with our Club's 
repeater it refused to allow us to remove the input PL when desired we solved 
the problem by removing all power to the repeater when we powered it back up 
everything was working correctly. I have been on the repeater committee for 
about 6 months and after this incident I figured it would be wise for me to 
review the manual, it provide a wealth of information that was new to 
me.
 
Thanks Again
 
Dan
KB3EMH

  - Original Message - 
  From: 
  Richard 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Thursday, July 08, 2004 8:52 
  PM
  Subject: RE: [Repeater-Builder] RC-100 
  Controller Manual
  
  I'll 
  send it to you, and I can send it to whoever can put it on the 
  repeater-builder website.
   
  Richard, N7TGB
  
-Original Message-From: Daniel Fargo 
[mailto:[EMAIL PROTECTED]Sent: Thursday, July 08, 2004 11:11 
PMTo: Repeater-Builder@yahoogroups.comSubject: 
[Repeater-Builder] RC-100 Controller Manual
Would anybody happen to have a pdf copy of the 
manual for a Micro-Computer Concepts controler 
RC-100 rev 2.56 our copy seems to have come up 
missing.
 
Thanks 
 
Dan
KB3EMH













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Re: [Repeater-Builder] grounds & cadwelding

[Daniel Fargo]

John,
 
    Here is 
some information from Polyphaser on grounding and bonding Amateur radio stations 
you might find helpful.
 
http://www.polyphaser.com/ppc_PEN1016.asp
 
Dan F.
KB3EMH

  - Original Message - 
  From: 
  JOHN MACKEY 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Monday, June 14, 2004 10:07 
PM
  Subject: [Repeater-Builder] grounds & 
  cadwelding
  I am getting ready to install a ground system in my 
  house.  This is to supportmy radio equipment for HF and 
  V/UHF.My plan was to use copper 6" strap running from my bench about 8 
  feet to twoground rods outside, each about 8 feet apart.  I then 
  wanted to cadweld thecopper strap to the ground rods.  Inside, I am 
  going to connect the groundstrap to a ground cable running to the breaker 
  box.Anyone have any better ideas or suggestions?  Anyone have any 
  experience usingcadwelding to bond ground strap to a ground 
  rod?thanks  Yahoo! 
  Groups Links<*> To visit your group on the web, go 
  to: http://groups.yahoo.com/group/Repeater-Builder/<*> 
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[Repeater-Builder] Regency Repeater

[Daniel V. Keane]

I have recently acquired a Regency 
Repeater.  I know nothing about it and am looking for any information or 
manuals.  The crystals will need to be changed for GMRS use 
(462.550).  
 
It says: FCC DATA:  Regency UHF 
Repeater Micro Com UO1R
 
What is the difference between above and a 
U1OR?  As I have searched the web and this model number comes up, will this 
manual give any useful information?
 
TIA
dk
 
 









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