RE: [Repeater-Builder] Audio limiting on incoming signals

2005-04-13 Thread Ken Arck

At 09:27 PM 4/13/2005 -0500, you wrote:

I think that is what I was getting to as well, if there was a way to limit
the incoming audio, or like it was put, hope the other users lets the louder
ones know they are too loud.  As for the system, the audio levels are set
just right for about 95% of the users.

---I think many are either not listening or not grasping the concept here :-)

It is not a matter of perceived deviation nor is it a matter of incoming
levels. It is not because some users might be using an Icom and others are
using a Kenwood. 

Since the deviation levels mentioned were actually measured, it is obvious
that the transmitter is being to 6 Khz deviation on occasion and the only
way this is going to happen (assuming the deviation limiter circuitry is
working properly and I see no reason it shouldn't be) is because the level
from the controller to the transmitter is not set correctly and probably
neither is the deviation control. 

Period.

Ken
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Re: [Repeater-Builder] Audio limiting on incoming signals

2005-04-13 Thread Ken Arck

At 11:18 PM 4/13/2005 -0400, you wrote: 

You can have a repeater with no limiting and a user that is severely
clipped and have a total deviation of only 3.5 kilohertz will sound
considerably louder than a user running 5 kilohertz deviation not being
clipped. 

---No argument about this at all, Kevin. However if I read him correctly,
he said these dev amounts were measured on a service monitor. 

Regardless of whether one signal sounds louder than others or not, the
amount of deviation is the amount of deviation :-)

Ken

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Re: [Repeater-Builder] Re: Need a duplexer

2005-04-12 Thread Ken Arck

At 01:35 AM 4/13/2005 -, you wrote:

I am not sure if anyone else has had this problem, but with these 
duplexers I have had a hard time with tuning a pair of cavities with 
the stock phasing lines.  I seem to be getting double peaks and the 
peaks just won't pull together down around 443 MHz.  I went and made 
new phasing lines out of the same type cable, but just 1/2 inch longer 
on all lengths.  Now the peaks pull together, therefore resulting in 
sharper pass band and less loss.  Maybe it was just mine.

--I've seen many T1500 series duplexers that have the wrong cable kits on
them for the frequency range being tuned. I'm not saying this is the case
with you but it seems many folks who buy them don't understand the color
coding of the cable kits. These are CRITICAL to proper performance. 

I have a couple of T-1504As and each one does  102 Db notches with  1.5
Db insertion loss. No slouch but of course, I have the correct cables
installed :-)

Ken

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Re: [Repeater-Builder] GLB Part

2005-04-08 Thread Ken Arck

At 03:59 PM 4/8/2005 -, you wrote:
Hi all, I am looking for a transistor that's in a GLB Preselector-
Preamp.  This is for the two (2) meter band.  Here's the information 
(best that I can see)   M (batwing) u 901  Thanks in advance

---Wow, an oldie but a goodie!

The U901 was one of the early microwave bipolar transistors (they were
black bodied and used axial leads - 4 of 'em). I don't even know if they're
available anymore but I did do a quick google search and didn't come up
with anything.

You might give RF Parts a call. They may be of some help. 

Good luck

Ken
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Re: [Repeater-Builder] Sentry Crystal

2005-04-07 Thread Ken Arck

I don't care what any of you say. I've used Cal Crystal for 20 years and
have been quite pleased with the results.

Ken
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Re: [Repeater-Builder] Astron parts

2005-03-31 Thread Ken Arck

At 11:53 AM 3/31/2005 -0600, you wrote: 

Where is the  best place (other than Astron) to purchase 2N3771 pass
transistors for a Astron power supply ? Anybody had luck using subs ?  If
so what part number ? Thanks !  Jeff Corkren/W5PPB Raymond,  Mississippi 

---That's a very common transistor. Try Mouser or DigiKey

Ken








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Re: [Repeater-Builder] Astron parts

2005-03-31 Thread Ken Arck


---DigiKey is a good source but they also have a $25 minimum (or else
charge you a handling fee. 

Mouser has no minimum, is every bit as reliable as DigiKey and has the same
part for a penny less :-).

http://www.mouser.com/index.cfm?handler=displayproductlstdispproductid=3013
87e_categoryid=238e_pcodeid=51100

Ken

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[Repeater-Builder] Re: Kenwwod single band transcievers as remote (CONTROLLED) inputs

2005-03-24 Thread Ken Arck

At 10:52 AM 3/24/2005 -0800, you wrote:

At 3/24/2005 06:54 AM, you wrote:
Well, for things like this, I have built myself a serial snooper.  Its 
basically a serial cable that has the output split so that you can plug it 
in as usual to whatever you are hooking together and then the 3rd port 
goes to another computer running Telix or some terminal.  Then you can 
operate the device as usual and see the control commands come out in the 
terminal.  After some playing around you can figure out their scheme and 
what you need to send it to do what.  I have used this to figure out 
proprietary formats for lots of things and it works well.  Most reecently 
there was a telephone call box that used a computer with the companys own 
software to control it.  I wanted to control it with a PIC instead of a PC 
so I asked the company for their commands and formats etc. which they 
would not give.  So, I snooped and in less than a day I had thrown their 
software in the trash and my PIC was working great.  If I were you I would 
snoop on Doug Halls two serial lines going into the Kenwood radio.  I am 
sure you can figure out what you need to send that way.  Sounds like a 
great problem, if I had one of those radios I would try it myself.  Hope 
this helps.

While I'm not intimately familiar with the protocols of the older
Kenwoods, Kenwood has historically used 9600 baud for its mobile radios'
serial data. I know for a fact all the newer ones do (TM-V7, g707, V708,
TM-271A). This is the easy part.

The problem comes from Kenwood NOT having any sort of standard in the
protocol used. When we coded up the control code for these radios for our
controllers, we used a port sniffer to figure out the protocol used for the
various (and totally undocumented!) commands. 

While Bob brings up an interesting point about SPI, I really don't think
this is the case. Then again, I've been wrong before :-) However it should
be easy enough to figure out with a working RBI-1 and a 'scope.

Ken
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Re: [Repeater-Builder] M57719N RF power module

2005-03-23 Thread Ken Arck

At 08:34 PM 3/23/2005 -0600, you wrote:

Anybody have any suggestions on varing the power on the M57719N Power
Module?

Would it be best to limit the rf input?

Would it be ok to lower the vcc on the module?

---According to the datasheet
http://www.datasheetarchive.com/datasheet/pdf/13/137545.html

it has two Vcc supplies. One for the first stage and one for the second. If
it were me, I'll leave the 2nd stage alone and control the voltage to the
first stage. That way, you'd have less current to deal with.

Ken
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Re: [Repeater-Builder] Desense, I'm guessing?

2005-03-21 Thread Ken Arck

At 11:28 PM 3/21/2005 -0500, you wrote:

My experience so far is that the ARR preamps are terrible, very poor ability
to not oscillate or overload when around any high RF field, we use only TXRX
amps. So far, threw out 4 of the UHF  ARR amps they make that were on
repeaters. Even 100db pass/rej. duplexers don't seem to allow the amps to
work correctly.

--- I swear by AngleLinear preamps in all my receiver needs. 

No one else even comes close to Chip's equipment...

Ken
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Re: [Repeater-Builder] 12vdc or 120vac Fan?

2005-03-18 Thread Ken Arck

At 02:32 PM 3/18/2005 -0700, you wrote:

I would go with the 120.  12volt fans have a bad habit of dirtying the
DC voltage which can ocasionally be heard in the repeaters audio.

--Not with proper filtering it doesn't. Besides, I believe that most 12
volt fans use less power than their 120 Vdc counterparts.

Ken




 
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Re: [Repeater-Builder] Test equipment for sale

2005-03-15 Thread Ken Arck

At 06:08 PM 3/7/2005 -, you wrote:
Tektronics 2246 4 channel 100MHZ Ocilloscope
manual, cover, and 2 probes included.
It has been tested and is in good working order.

---This ad, posted by frase_0174 [EMAIL PROTECTED], is most
definately bogus, as it the poster. 

It appears to be a case of identity theft and, according to a phone
conversation I just had, has been turned over to Yahoo, PayPal and local
law enforcement. 

Just in case anyone had any doubt :-)

Ken
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Re: [Repeater-Builder] Vibrasponders - 114.8

2005-03-06 Thread Ken Arck

At 08:51 PM 3/6/2005 -0500, you wrote: 
Hello All,  I'm in need of several Vibrasponders on  114.8.  If anyone has
a few that they would like to sell or trade for some  other freqs, I would
greatly appreciate it.  Thanks!  

---Which size? The Micor size or the HT220 size (sorry, I don't remember
TLN numbers. What? Do I look like Neal?)

Ken

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Re: [Repeater-Builder] KQ3M Repeater (was Need Answers -

2005-02-25 Thread Ken Arck

At 03:48 PM 2/25/2005 -0500, you wrote:

I had a guy in Topeka, KS check in on our machine July 6 of last year.  He 
was using a mobile rig, and a 5/8 wave mag-mount stuck to a filing cabinet 
in his office.  Wicked opening...  only QSL card I have ever sent for a 
repeater contact..  LOL!!

---While I was still living in Hawaii, there was one year of extraordinary
tropo (the West Coast --- Hawaii Tropo path is well known), where we had 4
or 5 days of stations up and down the West Coast, using our repeater on the
top of Mt Haleakala, at 10,000 feet. As I remember, the station furthest
south was an XE and the furthest north was a W7 in Washington.

Now you gotta admit that is some serious repeater DXing!

Ken
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Re: [Repeater-Builder] FS Kenwood TK-840 K3 403-430mhz NIB

2005-02-22 Thread Ken Arck

At 10:12 PM 2/22/2005 -, you wrote:

You can have this one delivered to your door (in the US) for $180.

---That HAS to be a typo?

Ken 

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RE: [Repeater-Builder] 7k Hidden Words Revisited

2005-02-16 Thread Ken Arck

Hidden words? H... if your controller speaks hidden words, does anyone
hear them? :-)

Ken
(sorry, couldn't resist)
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RE: [Repeater-Builder] Repeater, service monitors and other stuff for sale

2005-02-08 Thread Ken Arck

At 08:27 PM 2/8/2005 -0500, you wrote:


Might be that he is busy with his job enhancements, I also emailed him about
the TM-7V radio as well, and have not heard anything.  But you are right,
identity would be a necessity now.

---I also sent him an email (looks like you and I are going into a bidding
war on the V7 g) and no answer so far. 

Guess we'll see where this goes

Ken
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[Repeater-Builder] Theory versus practice

2005-02-07 Thread Ken Arck

Hi folks

Imagine this scenario. 2 quality, UHF repeater colocated at the same site.
Both repeaters are higher power (  50) out of duplexers, duplexers are
high quality BP/BR types. Here's the kicker - they're spaced 25 Khz away
from each other but not inverted from each other.

Now, theory is one thing as to the interference potential without resorting
to mulicouplers and combiners. But what is the real world problem
potential? Anyone want to take a stab at this one?

Ken
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[Repeater-Builder] Re: Theory versus practice (close spaced transmitters)

2005-02-07 Thread Ken Arck

Thanks for the input, guys (Neil's butterfingers in dialing a phone number
notwithstanding!).

Yea, I definately want to avoid xmtr combiners if at all possible. The
closer the spacing of the ports, the more ridiculous the loss becomes, so
the 2nd xmt antenna option is much more attractive. I have plenty of
circulators laying around (not to mention one of the repeaters is a Micor
factory repeater, so it has a circulator already). 

Anyway, we'll see how it goes and thanks again!

Ken
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Re: [Repeater-Builder] Homebrew a 2M/440 crossband coupler?

2005-02-01 Thread Ken Arck

At 03:13 PM 2/1/2005 -, you wrote:
Does anyone have, or know where I can get plans to homebrew a 144/440 
MHz crossband coupler (aka diplexer) ??  I would like to find 
something with wideband characteristics (ie, low pass, high pass) 
such as some of the diamond or comet models, but needs to be able to 
handle 100 watts FM continuously from each band, without excessive 
loss and without duplex noise, or little capacitors smoking.  Any 
suggestions, other than the Telewave models that cost over $300?

---Comet and Diamond make several models that will work just fine. And
they're definately cheaper!

Ken
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RE: [Repeater-Builder] Sinple COS Circuit

2005-02-01 Thread Ken Arck

At 11:14 AM 2/1/2005 -0800, you wrote:

Actually they are Kenwood TM-7V mobile radios, I tapped the Discriminator
Audio, but need a circuit to key up the voter card, which will be a LDG
RVS-8, which is tied into a Cat-1000B Controller.

---Pin 6 of the packet connector is COS. Active high = +5v. Actually,
every connection to the radio you need (PTT, COS, Disc and xmt audio) are
all available via the packet connector.

HTH

Ken
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RE: [Repeater-Builder] Sinple COS Circuit

2005-02-01 Thread Ken Arck

At 11:33 AM 2/1/2005 -0800, you wrote:

Your saying the packet connector in the TM-V7?  

-Yep, right on the front panel

Ken
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Re: [Repeater-Builder] Homebrew a 2M/440 crossband coupler?

2005-02-01 Thread Ken Arck

At 02:55 PM 2/1/2005 -0500, you wrote: 

  And they have lots of duplex noise, even on 440 :)   I changed all
the cabling on mine to RG 393 (142, 214 would work too).  Duplex noise gone
after that!

---I use two of 'em, each with no pigtails - only hard connectors on each
port. Can't say I've noticed the problem because of that!

Ken

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[Repeater-Builder] Re: Pinout needed for the Kenwood PG-4H cable (for RBI-1)

2005-01-26 Thread Ken Arck

At 02:12 PM 1/26/2005 -0500, you wrote:

Ken, speaking of the Kenwood remote bases, do you manufacture a board, 
or a kit for the remote base interface for the G707's etc? If so, how much.

Afraid not, Mike. In order to justify the costs of having pc boards
made, there needs to be a certain amount of interest. Many folks seem to
prefer building their own up on perf board (and the interface is actually
quite simple, it can be built in under an hour) or we've been known to
custom build one for a customer from time to time as well. Contact me
offlist if you're interested.

Also, has any consideration been made of developing a USB port 
programming solution? My laptop does not have a serial port! :-( Mike

While some users have reported good success with using a USB port (or
a PCMCIA serial port), we're adding direct USB support to both RCP and
Updater. That will be coming soon :-)

Ken
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Re: [Repeater-Builder] More power, Scotty!

2005-01-25 Thread Ken Arck

At 11:00 PM 1/24/2005 -, you wrote:

While building out my repeater empire, I discovered that an Astron RM-
35 does not like providing 30 amps continuous :) So, I thought I 
would run the latest repeater on a separate power supply. However, 
the controller, an Arcom RC-210, would not recognize COS and PTT 
states of the repeater on a separate power supply. What is the 
correct procedure to tie these two power supplies together, to 
either: A. Provide more than 30 amps continuous together, or B. have 
the ground of the second power supply recognized by the controller, 
which is running on the first power supply?

---John. One of my repeater uses 2 power supplies - one high current
(50amps) that powers the repeater xmtr, receiver, preamp and controller
(guess which one I use? g). A 2nd, lower current one (35 amp Astron)
powers the link and remote base radios. No problems at all this way.. just
make sure you tie the grounds together and you're all set!

Ken
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Re: [Repeater-Builder] Re: Pinout needed for the Kenwood PG-4H cable (for RBI-1)

2005-01-25 Thread Ken Arck

At 02:31 AM 1/25/2005 -, you wrote:

I know but I have all of the parts here ready to solder and the radios
are built into such a cool rack mount panel. I really want the cables
to be an exact length and dressed so nicely. Besides with the correct
pinout I could be done in an hour instead of waiting weeks for the
shippment.

---Take a look at the RBI manual and schematic. It has the pins on the
RJ45 labeled as to function. Then check the Kenwood manual and the
connections should be quite obvious.

That's how I did it and it works fine.

Ken
--
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Re: [Repeater-Builder] Re: Motorola Pulsar IMTS conversion

2005-01-21 Thread Ken Arck

At 04:12 AM 1/21/2005 -, you wrote:

A IMTS Pulsar sounds like fun to convert. One thing to remember to 
make things simple. IT'S A RADIO FIRST THEN THEY ADDED THE IMTS 
CONTROLLER. Boy It's been many years sence I'v worked on one.

---Many years ago, I converted a Pulsar II mobile into a repeater. They
were kinda neat in this regard as they were like Micors, in the sense they
only needed one xtal and had a 5 Mhz IF. So offsetting was easy. At the
time, SoCal used reverse splits on UHF (don't know if they are still low
in/high out down there) so it was a piece of cake to do.

The only real problem I found with the Pulsar was that it used PNP PA
devices (and perhaps even germanium ones too?), and was a PITA to repair.
It was also basically a VHF radio with a varactor tripler and no active
stages afterwards. 

Working from my photographic memory, which seems to be running low on film
these days!

Ken
--
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Re: [Repeater-Builder] connectors

2005-01-12 Thread Ken Arck

At 01:56 PM 1/12/2005 -0500, you wrote:

Ever wonder what Quintron is no longer around?

---Quintron is still around. And their radio equipment is excellent stuff
(of course, I'm still running a QT-6700 UHF repeater. 20+ years and still
going strong).

Ken
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Re: [Repeater-Builder] connectors

2005-01-12 Thread Ken Arck

At 04:23 PM 1/12/2005 -0500, you wrote:

You can't buy a new one smile
They where sold.

---They were?

http://www.quintron.com

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
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Re: [Repeater-Builder] VX2000U repeater

2005-01-04 Thread Ken Arck

At 04:47 AM 1/4/2005 +, you wrote:

The radio will not be 1. used on ham frequencies, it is GMRS and the the 
scanner would be used to pickup up a business band radio that is a friend of 
the families on a VHF frequency I am licensed with FCC for GMRS and he is 
licensed. 

---Are you sure it's legal to mix services like that? I'm not...

Ken
--
President and CTO - Arcom Communications
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RE: [Repeater-Builder] VX2000U repeater

2005-01-04 Thread Ken Arck

At 08:30 AM 1/4/2005 -0600, you wrote:

Seems to me I've seen a discussion on one of the lists (maybe this one?)
regarding the rebroadcast of NWS alerts on a ham repeater...  I don't have
the rules right in front of me, but I'm thinking that might be legal...
Anyone else remember this?

---Yes it is legal. Section 97.113(e) specifically authorizes limited
retransmissions of propagation and weather forecast information intended
for use by the general public and originated from United States Government
stations. 

Ken
--
President and CTO - Arcom Communications
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Re: [Repeater-Builder] has anyone tried

2004-12-25 Thread Ken Arck

At 02:35 PM 12/24/2004 -0500, you wrote:

I was looking at a mobile micor pa and a compa station pa.
has anyone tried to take the 100w working pa out of a mobile and mount it on
the compa station heat sink?

---What's wrong with the CompaStation PA? Did it blow up?

Ken

--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
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RE: [Repeater-Builder] Question for the group... and a thank you.

2004-12-23 Thread Ken Arck

At 05:28 PM 12/22/2004 -0800, you wrote:

But he wants to be able to cut-n-paste from them, and you can't do it unless
it is run through an OCR program.

---not true. Adobe will do the conversion as part of the process. The
final pdf will be cut and pastable (is that a word?g)

Ken
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Re: [Repeater-Builder] Question for the group... and a thank you.

2004-12-22 Thread Ken Arck

At 10:51 AM 12/22/2004 -0800, you wrote:
Is there a software package that can turn a TIFF file into
a PDF that can be cut and pasted from?


---Mike, Adobe can work with a postscript file and convert that into a
pdf. I'm thinking that TIF  PS may not be that big an issue?

Ken
--
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Re: [Repeater-Builder] QUESTION ON micors

2004-12-22 Thread Ken Arck

At 02:18 PM 12/22/2004 -0500, you wrote:

is there an article on rptb about the micor pl board and modifying it so
that the controller can turn it off and on?
I have not found it yet

---First of all, are you talking encode or decode?

Ken
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Re: [Repeater-Builder] QUESTION ON micors

2004-12-22 Thread Ken Arck

At 05:41 PM 12/22/2004 -0500, you wrote:

the controller I have already lets me use pl on the receive or not but I
would like to be able to turn it off on the output

---That's your RC210, yes? Simply follow my suggestion in my last post and
route Pin 701 to pin 1 of the port you're using for the Micor. Then program
the Encode Control Line to be Active High (command *1021 1) and program
your timer for the amount of time you want encode active during the tail
(command *1007xx). 

Also, don't forget to program whether you want the Encode time to start
after COS or after the courtesy tone with command *2088.

Ken
--
President and CTO - Arcom Communications
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Re: [Repeater-Builder] Tin Sound Audio

2004-12-21 Thread Ken Arck

At 11:00 PM 12/21/2004 -, you wrote:
Is there a way to make the audio coming into the repeater a little 
more basey, like would adding say a 47 Ohm resister do it.  Seems 
like certain users voices are very tinny sounding.  Any thoughts.


---Are you running deemphasis? Sounds like you're using a non-deemphasized
audio source from your receiver (aka discriminator audio)

Ken
--
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Re: [Repeater-Builder] Question on Mitrek

2004-12-19 Thread Ken Arck

At 02:17 AM 12/19/2004 -, you wrote:

I have a Motorola Mitrek UHF 110 Watt Mobile
I plan to use the PA on my uhf repeaters radios,The Repeater is 
doing 9 watts output and was wanting to know if 9 watts will drive 
the PA ok or will the Transmitter need to be turn down on power to 
drive the PA without blowing the PA.

---Why would you want to do that? Aside from whether or not 9 watts is too
much drive for it (which it is!), the Mitrek PA is not continuous duty. So
why bother?

Ken
--
President and CTO - Arcom Communications
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Re: [Repeater-Builder] Bomar TC'ing elements and ICOMS

2004-12-19 Thread Ken Arck

At 02:34 PM 12/19/2004 -0800, you wrote:

2. Once every 6-12 months. When the repeater is not within +/- 700hz, its
time 
to make a trip to the site and recalibrate it. If this is happening sooner 
than 6 months, then the element tempco is sub-par.

Many folks say I'm crazy but I've used Cal Crystal for probably close
to 20 years. Occasionally there may be a problem but that is the exception. 

One of my repeaters (UHF) has been operational for over 25 years, using Cal
xtals. It's xmt frequency varies, *maybe* by +/- 500  hundred cycles and I
haven't had to touch it in at least 2 years.

Ken
(I think Cal is vastly underrated)
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Re: [Repeater-Builder] Re: Kenwood TKR-830

2004-12-17 Thread Ken Arck

At 02:40 PM 12/17/2004 -0700, you wrote:
Anyone have location and pricing info on a nice used TKR-750?  Tired
of MONSTER-II.

---I have a TKR-750, brand new in the box. I'll make you a good deal.
Write me offlist if you're interested.

Ken
--
President and CTO - Arcom Communications
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Re: [Repeater-Builder] ACC ITC-32

2004-12-13 Thread Ken Arck

At 07:50 PM 12/12/2004 -0500, you wrote:
 Anyone familiar with this old controller? I need to press it into
 service and change callsign and ect. I downloaded the pdf files already.
 Thanks in advance and Seasons Greetings,73,Lee,N3APP

 As I remember, you need to program up a personality prom. Read the
docs as they'll explain what you need. Of course, you'll also need a way to
program up a 27xx series EPROM too...

Ken
--
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Re: [Repeater-Builder] Re: 802.11b wireless

2004-12-09 Thread Ken Arck

At 07:54 PM 12/8/2004 -0500, you wrote:

A bunch of us were thinking about setting up a Ham
radio only network here near Kitchener. Can you give
any details on the reprogramming of the hardware?

---I'm curious about this myself. I'm installing a Linux machine at my
site soon and this would be good knowledge to have.

Hopefully, Kevin's suggestion is Linux usable as well.

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
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Re: [Repeater-Builder] Re: 802.11b wireless

2004-12-09 Thread Ken Arck

At 08:10 PM 12/8/2004 -0500, you wrote:
The hardware is Canadian based out of BC, and their
website is:

https://tranzeo.com/index.php?section_id=10

---Thanks for the info, Tedd! Let me know what you find out. Although I'm
thinking this may be a bit of an overkill for my situation but I'm not yet
sure.

My Linux box will be at the foot of a 167' tower, which has a wireless WAP
at the top. But I figure the main lobe (the antenna is a parabolic
reflector type) is anywhere but down, so I *may* need some horsepower even
though it's only 160 something feet away!

Ken
--
President and CTO - Arcom Communications
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Re: Sexy Voices over repeaters, was RE: [Repeater-Builder] controller madness (whiz' bang - sparkle!)

2004-12-07 Thread Ken Arck

At 06:52 PM 12/7/2004 -0500, you wrote:
WE have a voice ROM chip in our repeater and my wife ID's it. We've had 
several people ask about who the sexy voice is. She just smiles.. She 
doesn't fit in two chairs, but she is a 2x granny. :-) Mike

---I got my wife to do several ID's for both my IRLP node and repeater.
She has a very sexy voice as well (and *she* is too! awww)

Ken
(23 years of marriage.. who woulda thunk?)
--
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Re: [Repeater-Builder] MICOR LOW AUDIO

2004-12-06 Thread Ken Arck

At 01:55 PM 12/6/2004 -0500, you wrote:

okay the audio id from the controller sounds great through the output of my
repeater however the audio from the receiver is to low to be heard with out
turning the audio on the listening radio up full blast and being in a quiet
room
my repeater is a micor compu station I have used the following site to make
the connections between the repeater and the controller
http://www.ccdx.org/zedyx/mods/micorbas.htm
so audio coming from the micor is just low is there something I missed in
making the micor into a repeater?
something I need to do to the micor for higher audio?

---I posted a reply to your question on the RC210 list, David. But my
quick synopsis is you either have a problem with the Micor or the
modification isn't working as intended. 

I also have a Micor CompaStation and there is tons of audio from the
backplane. Certainly more than enough to drive the RC210

Ken
--
President and CTO - Arcom Communications
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Re: [Repeater-Builder] tone trivia..?

2004-12-04 Thread Ken Arck

At 09:13 PM 12/3/2004 -0500, you wrote:

Then why aren't they using 118.8 Hz? (2B)

---that would have been too obvious!

Ken
--
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Re: [Repeater-Builder] Ho! Ho! Ho!

2004-12-03 Thread Ken Arck

At 04:22 PM 12/3/2004 -, you wrote:
Would it be possible for everybody to get into the holiday spirit - 
get over all this grumpiness - and get back to discussion of 
TECHNICAL issues???

---I agree! But don't post rap lyrics either! (see subject line) g

Ken
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Re: [Repeater-Builder] Noisy PLL Exciter

2004-11-25 Thread Ken Arck

At 10:34 AM 11/25/2004 -0500, you wrote:

Bad capacitor in the audio stage?

---I fixed a Repco repeater for a local ham that had this exact problem.
An interstage coupling cap developed an internal intermittent connection
and the xmt audio would crackle as temperature shifted. Physical movement
would also cause crackling.

Amazing what one bad .1 cap can do :-)

Ken
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Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Ken Arck

At 08:51 PM 11/23/2004 -0500, you wrote:

I would start with the Ground to see if the continuity of Resistance is Zero 
Ohms. from Chasis, Cabinet, rack, etc..  especially green crud from moisture 
will start a resistance path to ground.

---That would be my first take on his problem. Sounds like a typical
ground loop problem, causing the AM RF to make it into his audio circuits.
Hence, Rush Limbaugh!

My best guess on why it disappears when he removes the duplexer is that
ground currents are changing, causing the ground loop.

Ken
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Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Ken Arck

At 09:18 PM 11/23/2004 -0700, you wrote:

Wow, I'd take a deliberate jammer over having to listen to Rush any 
day!  ;-)

(Oh come on, someone had to say it.)

In some circles, Rush Limbaugh makes great repeater ID's (as does Sean
Hannity!). Besides, if I listen to one more repeater QSO about the NBA
thing, I'll scream! :-)

Ken
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Re: [Repeater-Builder] Yaesu FTR-2410 PL Encode issues

2004-11-23 Thread Ken Arck

At 10:29 PM 11/20/2004 -, you wrote:

Hi Group,
   I'm working on a Yaesu FTR-2410 2m repeater here. I have an SCOM 
5K controller attached to it. Everything works fine except for PL 
Encode. When I inject the tone into the transmitter at the Tone In 
lead, the encoded PL tone distorts the repeat audio  controller 
telemetry (ID, Courtesy Tone, etc). The PL also has to be at a fairly 
high deviation for the receiveing radio to decode it (i.e. the PL 
tone has to be audible).

---sounds like you're trying to inject the PL encode output into a
preemphasized audio input on the xmtr. As you found out, this won't work
very well :-)

Does the 2410 have a separate non-preemphasized external audio input? And
what type of encoder are you using? 

Ken
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Re: [Repeater-Builder] Repeater Interference

2004-11-23 Thread Ken Arck

At 08:43 AM 11/23/2004 -0700, you wrote:
Anyone have an idea what causes this and how to get rid of it?

---AM? If so, your problem isn't RF related, per se. Sounds more like a
case of audio rectification..

Ken
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Re: [Repeater-Builder] Communication Speciakist ss-32 tone bord Info Needed

2004-11-18 Thread Ken Arck

At 05:17 AM 11/18/2004 -, you wrote:

Can anyone tell me about this tone board and would it be a good 
choice to use on an repeater, the receiver that it will be hooked to 
is a GO Mastr ER41 and how hard would it be to hook up?  Or would it 
get hooked to the RLC2 controller on the cos line?

--The SS-32 is an encode only board. You can't use it on a receiver

Ken
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Re: [Repeater-Builder] Figuring out the second harmonic

2004-11-04 Thread Ken Arck

At 01:37 PM 11/4/2004 -0500, you wrote:

Hey guys,
This may be a dumb question, but what's the formula for figuring out the
second harmonic of a repeater freq?

Simple. Freq x 2. The 3rd harmonic would be Freq x 3, and so on...

Ken
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Re: [Repeater-Builder] Kenwood TKR-850K3 Help

2004-10-30 Thread Ken Arck

At 08:23 AM 10/30/2004 -0400, you wrote:

Easy as pie. Change the band in your software and then align the receiver
you will be good as gold.

---Russ. The KPG-66D software doesn't cover that range (430 - 440)

Ken
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Re: [Repeater-Builder] Help needed (humor)

2004-10-29 Thread Ken Arck

At 11:13 AM 10/29/2004 -0500, you wrote: 
  Hi, Neil.  Yep, if push comes to shove, I'll build up a duplexed
using, not RG-58 but RG-8 or better. 

OY !!!

Ken
(there is so much tongue in cheek around here, it's like watching a porno
flick!)

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[Repeater-Builder] Speaking of Kenwood TKR's

2004-10-28 Thread Ken Arck

I have a brand new in the box, TKR-750 K2 (factory tuned in the ham band)
available. It was special-ordered for someone who backed out at the last
minute.
 
I'm making it available for only $1000 plus shipping. This is a one time
deal, so if you're interested, contact me off list.

Ken






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Re: [Repeater-Builder] Doug Hall RBI-1 question

2004-10-24 Thread Ken Arck

At 08:30 PM 10/23/2004 -0400, you wrote:
When an inquiry is done and the controller responds with, in your case, 
146.520 the remote will be placed on 146.520.  Also if a reset command is 
sent to the controller it will also place the remote on the default 
frequency.   I use a Link Communications RLC-3.

---Thanks for the info. I was more concerned with how the RBI-1 treats the
radio when the reset button is pressed on the back of the RBI-1. From what
I've seen, the RBI-1 simply reads what is currently in the radio and
syncs to that. It doesn't actually set the radio to some default value. 

I just wanted to make sure I was seeing the proper behavior on an otherwise
untested RBI-1.

Ken
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Re: [Repeater-Builder] Mitrek test set cable

2004-10-21 Thread Ken Arck

At 12:02 PM 10/21/2004 -0700, you wrote:


  I 'think' it should be the same as your Micor test cable. 

Two different style connectors, Neal. The Micor (of course) is a
square, 7 pin one. The Mitrek is a round, 11 pin one

Ken
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Re: [Repeater-Builder] Icom rp4020

2004-10-15 Thread Ken Arck

At 02:10 PM 10/15/2004 -0500, you wrote:

Jed I just checked and I think the Info you need is already here 
http://www.repeater-builder.com/rbtip/icom-index.html

---I already wrote Kevin about that. The pdf is apparently corrupt, as
Acrobat doesn't like it (it gives all sorts of errors when loading)

Ken
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Re: [Repeater-Builder] Icom rp4020

2004-10-15 Thread Ken Arck

At 02:24 PM 10/15/2004 -0500, you wrote:

It Worked for Me , if You like I can E-Mail it directly.

---That's really wierd. This particular pdf isn't liked by my Acrobat
(4.0) at all. It reports There was a problem reading this document(9). The
file contains information not understood by the viewer

I've never run into this before and other pdf's work just fine.

Maybe I need to upgrade?

Ken
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RE: [Repeater-Builder] Icom rp4020

2004-10-15 Thread Ken Arck


At 04:04 PM 10/15/2004 -0400, you wrote:

The file appears to have been scanned into adobe...  cut and paste won't
work as it is an image.

---All we need is the pinout of the 9 pin DIN connector (I was told it was
a 9 pin DIN?) and the active states of the COS, etc.

Ken
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Re: [Repeater-Builder] Coaxial Stub Theory

2004-10-14 Thread Ken Arck

At 02:26 PM 10/14/2004 -0400, you wrote:

Ok, So you can make some kind of filters by placing a T in line with a
piece of equipment and cut the Coax for 1/4 wavelength at the desired
frequency.

---As the others pointed out about 1/4 wavelengths lines (or odd
multiples), they invert. Don't forget 2 things however. 1/4 wavelength
ELECTRICALLY, so you need to take velocity factor into account. Secondly,
1/4 stubs aren't particularly high-Q and you will probably end up with only
around 30 to 40 Db notch, using a single one. You can, of course, combine
several to deepen the notch but they will still not be very high-Q.

Ken
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Re: [Repeater-Builder] UHF Duplexer Question

2004-10-05 Thread Ken Arck

At 11:57 AM 10/5/2004 -0400, you wrote: 

 In my humble opinion, the best duplexers you can buy are from TX/RX
Systems. 

---Good stuff, yep! Although another great choice for him would be to find
a Mototola T1504A. They're an excellent performing BP/BR type and can be
found for a pretty reasonable price.

Ken

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[Repeater-Builder] Re: highest repeater site

2004-10-02 Thread Ken Arck

At 06:21 PM 10/1/2004 -0700, you wrote:

Is there a repeater on the space station?  
I wonder if it is a Mastr-Pro or a ??

---No, it's a (s)Pace.

(showing my age?)

Ken
(FWIW, my repeater was at 10,023 feet for many years. Do I win anything?)
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Re: [Repeater-Builder] The duplexer story...

2004-09-30 Thread Ken Arck
At 12:09 AM 9/30/2004 -0700, you wrote:
Tim, a couple of questions come to mind.

2.) Are you running a circulator between the duplexer
and the antenna?

--???

Ken
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Re: [Repeater-Builder] Kenwood TKR850 external controller hookup

2004-09-30 Thread Ken Arck

At 03:58 PM 9/30/2004 -, you wrote:
I realize I can try both to see which I like, but I thought I would
ask which audio inputs and outputs people are using on this repeater,
audio or data?

---The TKR-850 uses DSP for just about everything to do with audio.
Unfortunately, the deemphasis curve the Kenwood engineers programmed  (the
audio available at the RA output) is considerably off from what it should be. 

Using the discriminator (or digital) output gets around this however that
being said.

The deemphasized audio output isn't all that bad actually. It does sound
decent enough on the air and it does have the advantage of having PL rolled
off already, which saves you from having to do it elsewhere. 

Unless you're a real purist, use the RA output. 

IMHO of course :-)

Ken
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RE: [Repeater-Builder] Kenwood TKR850 external controller hookup

2004-09-30 Thread Ken Arck
At 11:11 AM 9/30/2004 -0500, you wrote:
If you look at the schematics you will see that the data input has a low
pass filter and you'll have horrible audio. 

Also, if you have PL/DPL encode programmed internally to the repeater,
the external data input won't work anyway.

Ken
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Re: [Repeater-Builder] nice 3 tones courtesy beep (repeater controler)

2004-09-28 Thread Ken Arck
At 09:10 AM 9/26/2004 -0600, you wrote: 

hi everyone, just wonderind if anyone know which is  the repeater controler
that makes a nice 3 tones courtesy  beep  at the end of  the transmitions,
i have a customer that wants to have in ther private repeater  that nice
sound, my repeater just have the 1000 hertz bip (zetron, or tpl  154) any
information will be apreciated. george castellanos 

---Our RC210 will do courtesy tones up to 4 segments and dual tones.

http://www.ah6le.net/arcom/rc210/rc210.html

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Re: [Repeater-Builder] Mitrek Full Duplex 110 watt..?

2004-09-24 Thread Ken Arck
At 09:19 PM 9/24/2004 -, you wrote:
Wonder if he or any of you have ever measured the in 
cabinet desense. I'm willing to guess the 110 watt mitrek 
will not operate well full duplex at the full rated power
without some receiver grief. 

---Running a 110 watt Mitrek @ 110 watts in continuous duty, the least of
your problems is desense :-)

Ken
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Re: [Repeater-Builder] transistor cross-reference site ??

2004-09-22 Thread Ken Arck

At 09:47 PM 9/21/2004 -0400, you wrote:
i am looking for coss reference for these :
s-av24  Pa for my ft-2400
2sc2196 PA for the ft-208

---Try RF Parts. They have the originals module:

SAV24 - $74.95 

They probably can help with a cross reference on the 2SC2196 as well.

http://www.rfparts.com

Ken


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Re: [Repeater-Builder] Kinda of a strange question

2004-09-20 Thread Ken Arck
Very cool, Michael. If it's not too much of a hassle, it would be nice to
know who was first :-)

Ken


At 09:36 PM 9/19/2004 -0500, you wrote:
Ken:

About that same time a friend of mine in Norman, Oklahoma
modified his UHF to VHF remote base to add a home built
GLB synthesizer to his tube VHF remote.  He built the
logic for it and I think that he used a 567 tone decoder
set.  I remember this because it was after I got out
of school in 1975.  I think we later went together and
bought a Telenetics (?) hybrid digital tone decoder and he
built it onto a plug in board and substituted it for
the 567's.  It worked great and the remote base was a
lot of fun to use.

In fact, somewhere I may still have an extra set of GLB
boards and the assembly instructions.

He stored the frequencies in registers to program the GLB.
When he had it ready, we put it up on the same building
as the club repeater on the Oklahoma University Campus
for which I am the trustee.

The remote used Ringo Rangers, not good antennas.  We put
it about 100 foot horizontally down the building to avoid
desense from the 146.88 repeater, but there would still
be some when the remote came up.

He could bring up the receiver, change frequencies,
then bring up the transmitter, and switch between hi
and low power.

Later he designed a board using 1702 eproms to use an
IC-22s in a remote base.  I laid out a PC board for
him and made him several copies.  Another very close
friend of mine, K5JB, built one of the boards and used
a KIM-1 (6502) microprocessor to control a 22s and make
it scan.  I may have the radio because he left me a
bunch of his radio equipment when he passed away.  In
fact, I probably still have an EBKA Familarizor Single
Board Computer which was very similiar to the KIM-1 which
I got from the fellow who designed it and was an
acquaintance of mine at the time.

I could probably go back and try to get a closer date
to when this was.

Micheal Salem N5MS








Ken Arck wrote:

 Hi folks
 
 Is anyone aware of the earliest use of a synthesized remote base on an
 amateur repeater? One that allowed full frequency agility?
 
 My take is that it happened in 1976 (and of course, I think I know who did
 it g).
 
 Ken

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 President and CTO - Arcom Communications
 Makers of state-of-the-art repeater controllers and accessories.
 http://www.ah6le.net/arcom/index.html
 We now offer complete Kenwood TKR repeater packages!
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Re: [Repeater-Builder] Re: Kinda of a strange question

2004-09-20 Thread Ken Arck

Well hey there Skip! Long time no chat!

Indeed, the 70's were a very cool time in ham repeaterdom. Ahhh, how I
miss the days of the repeater wars with the GRONK folks down in San Diego!

As you may remember, our system was also located on PV. Our repeater (UHF)
was a modified Pulsar II (man I hated those germanium RF transistors!) but
it worked pretty well all and all. But I was sure happy to finally replace
it with the Quintron (which is still going strong too).

Memories..like the corner of my mind...

Ken


At 03:23 PM 9/20/2004 -, you wrote:

You beat me by a couple of years.  I built a 22S control system from 
TTL that was on Palos Verdes and then later on Onyx Peak (9114 
feet). The original controller used octal to set the actual N code 
into the 22S, but I later added a 2708 lookup table.  *52 put you on 
146.52, *34 put you on 146.34/146.94. Since it was all done by a 
lookup table it knew the band plan and would automatically select 
a repeater split if you dialed an input frequency or simplex on the 
output if you dialed an output frequency, etc.  It did the right 
thing if you dialed *40 (people from L.A. will know that 
frequency).  There were commands to force simplex or reverse.  I 
can't find the schematic any longer, but I did find a control list 
dated 12/79 that was after the lookup table was added.  My best 
guess is 1/79 when it first went on the air.  I know my controller 
wasn't the first 22S controller as I later compared nodes with Greg 
(WB6KCD ?) who that had built a controller before I had.

It also had cw unkey telemetry that sent the frequency in cw when 
you unkeyed.  I can't tell you how sick I got of hearing 46 and 52 
in cw over and over and ...  It sounded like a good idea at the time.

Boy those were the days ... we had the only ham box on Onyx peak for 
a year or so and could hear 3 states ... then a 2 meter repeater was 
installed.  The 22S rolled over and died whenever the repeater keyed 
up (duh!).

I'm not sure this matches your fully frequency agile definition as 
the 22s only covered the top 2 Mhz of the band.

73's Skip WB6YMH
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote:
 Hi folks
 
 Is anyone aware of the earliest use of a synthesized remote base 
on an
 amateur repeater? One that allowed full frequency agility?
 
 My take is that it happened in 1976 (and of course, I think I know 
who did
 it g).
 
 Ken
 ---
---
 President and CTO - Arcom Communications
 Makers of state-of-the-art repeater controllers and accessories.
 http://www.ah6le.net/arcom/index.html
 We now offer complete Kenwood TKR repeater packages!
 AH6LE/R - IRLP Node 3000
 http://www.irlp.net





 
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[Repeater-Builder] Re: Kinda of a strange question

2004-09-20 Thread Ken Arck
At 04:36 PM 9/20/2004 -, you wrote:

Unfair, you've changed callsign (I think).  My memory isn't that 
great, but I remember a Ken that lived on a house boat in San Pedro, 
was that you?  What was your call in the good old days?  What was 
the remote call?  That'll probably jog the memory record from off 
line storage !

---Yep, that was me. My old call was WA6EMV (oh no, not him!!). Back in
those days, I was the typical know-it-all kid, as opposed to now being a
snotty know-it-all middle aged guy!

My old system was originally WR6AKB and then (of course), it became WA6EMV.
We were one of the very first to be coordinated on a VHF splinter channel
in SoCal - 146.745/.145, which is where we ended up after first being
coordinated on 147.69/.39, which caused the conflict with the GR0NK guys.
Man, I remember them programming up a CW IDer that sent the following as
part of our war:

- . . .   - -   .   - . -. - . -   - . .  . - . .

(the above is exactly what their ID sent. If you look at it in a mirror, it
would say F*** EMV. I always thought that was very clever on their part! :-)


I finally had enough of 2 meter repeaters and moved to UHF (443.325 I
*think*) and have stayed on UHF ever since.

Anyway, there's the sordid story!

Ken



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Re: [Repeater-Builder] Kinda of a strange question

2004-09-20 Thread Ken Arck
At 09:51 PM 9/19/2004 -0400, you wrote:
That would have been using a GLB synthesizer?

---A Vanguard, actually. And a Metrum II (remember those?).

As did Mike, we designed a complete TTL controller (5 x 7 cards in a cage
- state-of-the-art!), using 567 decoders that did all the usual controller
functions. And of course, it controlled the Vanguard as well. While we
could directly enter frequencies, we also had memories that were assigned
by a diode matrix with dip switches to select the channel frequency.

That system served us well until the early 80's, when I bought my first
RC-850. I think I might still have the system schematics and drawings
around here somewhere. By the way, this was in either 1975 or 76. And it
was done in Southern California.

Ken
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Re: [Repeater-Builder] POWER DIVIDER

2004-09-11 Thread Ken Arck
At 11:22 PM 9/9/2004 -, you wrote:
Hi, I wonder if anybody has experiece that makes a power divider 
using coaxial cable? How good this divider could be?

--I use a 4-way one, on my 2 meter EME array. What info are you looking for?

Ken
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Re: [Repeater-Builder] Kenwood Repeaters

2004-09-08 Thread Ken Arck
At 04:25 AM 9/8/2004 -0400, you wrote: 

Good Morning:  Thanks to Kevin and Jim for their comments on Kendecomm
equipment.  The information is greatly appreciated.  Can any one recommend
a source for a Kenwood TKR-750  ?  TNX...Joel W4SLH 

Shameless plug

http://www.ah6le.net/arcom/kenwood.html

/Shameless plug



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[Repeater-Builder] KENWOOD TKR-850 UHF REPEATER Can it be tuned and Programed in the Ham Band

2004-09-04 Thread Ken Arck
At 09:45 AM 9/4/2004 -0700, you wrote:

The answer is probably.  The fact that others have tuned a TKR-850 to
the 70cm band is not an absolute guarantee that your unit will do the
same.  It may work fine, or it may barely make it.

I'm afraid I have to disagree with your analysis that simply because
others have retuned them to 70 cm is no guarantee. In fact, Kenwood spec's
the TKR-850 in the ham band.

I'm looking at the service manual and there, in black and white, is the
freq. spec
Frequency range 440 to 470 Mhz. Not to mention the Kenwood FPU
programming software has 440 to 450 Mhz as a valid range.

They tune easily and meet full factory spec when retuned. I haven't seen
one yet that doesn't.

Ken


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Re: [Repeater-Builder] Re: Parts needed?

2004-08-31 Thread Ken Arck
At 10:10 PM 8/31/2004 -, you wrote:

-- (figuring 10 watts per fan, that would be 110 mils each. 

---Ick!. make that roughly 90 mils ea, so you could run 11!

Ken
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Re: [Repeater-Builder] Parts needed?

2004-08-31 Thread Ken Arck
At 04:52 PM 8/31/2004 -, you wrote:
I want to use the fan timer line or whatever you call it...at work 
and don't have the manualto turn on and off AC fans for my 
repeater.  Have all the fans going into one surge strip right now 
(for easy turn on and off).  Thought I would use a either another 
extension cable with a relay or build it into a power strip.  What 
parts are need and how to do?  Want to throw something together over 
the long weekend.

---Hi Robert. There are 2 schools of thought about this but many folks use
a solid state relay for switching 110v fans. Many folks use a mechanical
relay. I suppose it's really up to you on which you prefer to use but
either method would handle the job easily. One thing about a relay however.
You probably want one with a 12 Vdc coil and you MUST use a quenching diode
across the coil to kill any inductive kick. 

Ken
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Re: [Repeater-Builder] Re: Parts needed?

2004-08-31 Thread Ken Arck
At 10:10 PM 8/31/2004 -, you wrote:

Thanks Ken,
That was pretty much my question
I wanted to use the RIGHT relay that would handle the 110v.  
Thanks,

---I would think even your local Radio Joke (shack) would have one. Most
relays I've ever seen have the contact ratings stamped right on them. A 1
amp rating @ at least 110v is probably more than enough for several fans
(figuring 10 watts per fan, that would be 110 mils each. 1 amp contacts
would handle 9 of 'em no sweat. 

Of course don't worry if the contacts ratings are higher - that's just
icing on the cake :-)

Ken
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Re: [Repeater-Builder] RAMSEY BOARDS fo 2 m and 220.

2004-08-17 Thread Ken Arck
At 06:04 PM 8/16/2004 -0700, you wrote:

I looked at their UHF preamp literature.  They claim 1-1.5 dB noise 
figure.  If you look up the datasheet on the transistor they use, the 
minimum NF of the device is 2.5 dB.  Draw your own conclusions.

---Kinda like a company who buys a product at $10 and sells it for $9.
Not to worry, says the owner. We'll make it up in volume!

Ken
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Re: [Repeater-Builder] Question for the group

2004-08-11 Thread Ken Arck
At 08:13 AM 8/11/2004 -0700, you wrote: 

Yep, it shoulda been converted in 1985 or  about.  Didn't they send you a
new certificate?  I tried Slusser, John and got my radiotelephone  license.
 The database doesn't show the radar endorsement. 

---It not only showed my radar endorsement but also showed my wife's
novice license (gee, I thought that had expired!). I just searched using my
last name. 

Personally, I think getting rid of the 1st, 2nd and 3rd class licenses and
opting for the easier General was a mistake. But that's just me...

Ken

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Re: [Repeater-Builder] Re: Speaking of Wacom WP-678

2004-08-06 Thread Ken Arck
At 11:42 PM 8/5/2004 -, you wrote:

REAL EASY, It's not hard. You haven't seen many BpBr Duplexers have 
you?

---Actually, I've seen tons of Batwing ones, Sinclair, even ol' Celwave
ones. Even the newer Wacom ones (now RxTx) have cavities in series, not
parallel.

The pass is tuned with the plunger (inthe center) and the notch is 
tuned with the Rod (not plexiglass). The RF is applied at the 
connector (one end of the internal loop) the other end of the loop 
has a cap to ground adjusted by changing the dielectric of 
the cap by adjusting the rod. That's how it works in a very very 
simplestic exp.

---Thanks for the explanation. It must have to do with the propagation
mode to/from the cavity. It took awhile to wrap my head around a bandpass
cavity being in parallel with the feed and not in series with it.

Ken
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RE: [Repeater-Builder] Speaking of Wacom WP-678

2004-08-05 Thread Ken Arck
At 04:03 PM 8/5/2004 -0500, you wrote:
Hello,

that is one of Lloyd Alcorn's marvels.  He showed that design to me a long
time ago, it is BpBr, between the notch and the pass you should have a
really good duplexer.

---Yea? How can it be a BP/BR with only one port per cavity? And I don't
think it's a hybrid ring either.

Ken
(somewhat stumped)
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Re: [Repeater-Builder] windows error

2004-08-03 Thread Ken Arck
At 10:42 PM 8/2/2004 -0400, you wrote: 

I am trying to load some  software so I  can do a remote program but every
time I load it I get error 1306,  and  thoughts?  I am using windows 95.
the program I am told should work from 95 to  xp  thanks  John  

---John, have a look here.

http://www.kbalertz.com/Feedback_175085.aspx

Ken

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[Repeater-Builder] REPOST: ACC RC-850 accs. For Sale

2004-08-02 Thread Ken Arck
A repost...

I now have an 850 available. It has the VRT and non-registered patch
boards, as well as a TS-32 installed. It has firmware version 3.42
installed. All boards are installed in a rack mount but it is not the
official ACC case. All audio connections are via phone jacks, with
everything else brought out to barrier strips. Guaranteed to be 100%
functional  

The original audio delay chip (SD4096?) failed a few years ago and I
replaced it with Rick Franz's retrofit delay, which has been working fine
ever since (you
can see his schematic at
http://www.repeater-builder.com/acc/franzdelay.jpg).http://www.repeater-bu
ilder.com/acc/franzdelay.jpg).

I will also have an Icom IC-22U 2 meter radio available, which has a
homebrew FC-1 installed internally. Obviously, it is wired to work with the
850 and simply plugs in.

Anyway, I'm accepting offers so if you're interested, write me offlist with
your offer! I will split the 22U from the 850 but only if someone takes the
850 first, without taking the radio.

Ken


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[Repeater-Builder] Coupling loops/probes

2004-08-02 Thread Ken Arck
Hi folks

I'm looking for a complete set of adjustable coupling loops and probes to
convert a T-1507A duplexer into a T-1504A. While I know some folks use a
1507, I'd much rather have the added isolation the adjustable loops/probe
offer, as I plan on running 60 watts through 'em.

Before I get into PN's and so on, am I barking up the wrong tree? I'm
thinking that the answer I'll get is along the lines of who has loops and
probes without the cavity for them?

Help? g

Ken
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Re: [Repeater-Builder] Coupling loops/probes

2004-08-02 Thread Ken Arck
At 01:02 PM 8/2/2004 -0400, you wrote:
Have you tried Motorola?

---Gawd I was trying to avoid them (I swear they've outsourced their 2-way
support people

Ken
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Re: [Repeater-Builder] Coupling loops/probes

2004-08-02 Thread Ken Arck
At 12:12 PM 8/2/2004 -0700, you wrote:

  I do have the complete manual (Trip reason #3 ...) and can 
 mail if you can't locate elsewhere. 

--Thanks Neal but I do have the complete manual as well

Ken

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Re: [Repeater-Builder] Re: Coupling loops/probes

2004-08-02 Thread Ken Arck
At 07:51 PM 8/2/2004 -, you wrote:
Motorola no longer supports the T1500 series, 
nor the MSR-2000 series duplexers. I tried 
about two months ago to go through a list 
of duplexer items with Motorhead. No Cigar... 


I did speak with the big M's 2-way people (I still say they've
outsourced their support people!) and, believe it or not, both the coupling
loop and probe kits are a stock item! But I'm not sure I can justify $71
per loop kit and $22 per probe kit for 4 cavities. OUCH!

So... I may look into machining up some of my own, as you did. I have
access to a full shop and a T1504 available to use as a template. The big
question (not knowing if Invar is solderable offhand) is what are they made
of?

Ken

--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Coupling loops/probes

2004-08-02 Thread Ken Arck
At 02:58 PM 8/2/2004 -0700, you wrote: 

Probably a lot easier to just buy a set of T-1504 duplexers.  The last 2
sets I purchased were $50 and $75 each.  

Ugh.I've never seen them that cheap!

Ken

--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Just a couple of dB loss you say?

2004-07-17 Thread Ken Arck
At 05:07 AM 7/17/2004 -0700, you wrote:

  If the dual tones went away. how do you remotely control your 
 system via radio? 

---I didn't say they weren't useful (or still used). I just said they were
outdated

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Re: PA question

2004-07-14 Thread Ken Arck
At 03:43 PM 7/14/2004 -, you wrote:

For many rb cases... 40 watts is more than enough. 110 
watts out is more trouble than its work, especially 
an in/same band remote base. 

---This is what I was thinking too. All that for an additional 4 or 5 Db
seems like a waste to me. 

I currently run a 2 meter remote with only 10 watts (although that's going
up to 60 but only because I'm replacing my old IC-22U workhorse with a much
newer radio for a remote base). 10 watts has been more than enough 99% of
the time.

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Using an HT for a Transmitter - Thoughts Ideas

2004-06-11 Thread Ken Arck
At 12:08 AM 6/11/2004 -, you wrote:
Need some input on this, what others think.  I am trying to pull all 
the Regency stuff from the repeater, only thing left is the 
transmitter.  I want to use a Yaesu FT-10R as an exciter for the amp 
to the repeater.  What are some thoughts on this.  I only need a 
half watt to drive the amp.  Any problems anyone can think I might 
run into.

---Several issues here that I can think of off the top of my head.
Frequency stability, spectral purity (or more precisely, lack thereof),
duty cycle. And that's just for starters :-)

IMHO, a bad idea from many different angles...

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Re: slight o/t where is cable broadband ?

2004-06-08 Thread Ken Arck
At 11:39 PM 6/7/2004 -0400, you wrote:

we are receiving what appears to be a new catv cable leak that sounds
like a loud machine like buzz.  maybe 300 hz or the like.  it seems to
be right at 145.15 and all over the place near there when we hear it.
driving us nuts  where is cable tv broadband spectum wise.
our local cable co just started up broadband at about the same time this
started thanks  Richard Marlin K4HAT

---If you think that is bad, wait until BPL hits your town!

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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[Repeater-Builder] Oh Lord, not another Part 97 question!

2004-06-07 Thread Ken Arck
Point to point link ID requirement:

1) When the link is first brought up and taken down
2) When the link is first brought up and taken down and every 10 minutes of
operation
3) At the end of communications
4) All of the above

The winner receives an atta boy!

Ken




 
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RE: [Repeater-Builder] Oh Lord, not another Part 97 question!

2004-06-07 Thread Ken Arck
At 11:09 AM 6/7/2004 -0400, you wrote:
Ken,

I would think this is a no-brainer...  as option 2 is inclusive of the
others and 10min interval is a requirement.

I keep getting dragged back into the ID debate but only as it applies
to auxiliary stations. Your position is my position - it doesn't matter
what it is, the every 10 minute rule applies regardless.

Not everyone is willing to take my word for it however. To which I say..
fine, do it as you feel comfortable doing it. I am not my brother's station
keeper :-)

Ken




 
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Re: [Repeater-Builder] MSR2000 VHF questions

2004-06-05 Thread Ken Arck
At 10:21 AM 6/5/2004 -0500, you wrote:
I'm thinking I'm a little light on drive and thus the amp doesn't
always excite.

---Announcing new Viagra for PA's. Always excite, all the time.







 
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Re: [Repeater-Builder] help I need

2004-06-04 Thread Ken Arck
At 10:09 PM 6/3/2004 -0400, you wrote:
will a vhf one work on a uhf repeater?

No. That filter is in the output of the tripler. Therefore it needs to
be UHF.

As for the epoxied slugs, I used some acetone and CAREFULLY worked them
back and forth with a high quality allen wrench. A little patience and
careful work allowed me to free every single one. 

Good luck!

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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