was better for negative ones.
We never did have anyone question us
Ken
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tuning, in that
you didn't guarantee a 50 ohm load at each port (you didn't say HOW you
tuned 'em but I suspect you didn't use 50 ohm pads on both ports when you
did).
Ken
--
President and CTO - Arcom Communications
Makers
it AM wise? Cause there ain't no way it could modulate the
signal FM wise..
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom
schemes, the modulation is done early
on and multiplied. So for a typical multiplication scheme of x 9, the
modulation introduced only needs to be 550 Hz or so (for a 5 Khz spec). And
even a paultry 550 Hz requires a fair amount of audio voltage to accomplish.
Ken
is actually
discriminator audio, with no deemphasis of any sort. 1200 baud audio on the
other hand, is generally deemphasized. The corollary is also true. 9600 Tx
audio isn't preemphasized, whereas 1200 is.
Ken
--
President
stability and reasonable gain
(typically around 12 dB).
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete
to factory for retune for
anything different. any comments? Thanks
---It's a typical mobile type duplexer. Notch only, can only handle 50
watts and not that much isolation. Not to mention that at 5 Mhz, it's
unusable for amateur use.
Ken
. And no. I seriously doubt
your local radio shop would/could do it.
I assume you're dealing with a 600 Khz split for your system. I'm also
curious how much you paid for the duplexer in the first place.
Ken
--
President
then, probably
not.
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete Kenwood TKR repeater packages!
We are now
).
The pin used is the one in the center, on the opposite end of it from the
trimmer cap
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom
use the scope in the service monitor, not the meter
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete
I take
it the max deviation should be set with a 1Khz audio tone applied
--Best to check with the manufacturer's spec, although most I know of spec
a 1 Khz tone, yep.
Ken
--
President and CTO - Arcom Communications
Well... all I can say is look at how much trouble deviation got Michael
Jackson in
Ken
(sorry, couldn't resist)
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, for an 8086 PC motherboard and
associated hardware, for use as my first computer based repeater controller.
Hammond is now the way to go, IMHO . Cheap, effective and readily available
Ken
--
President and CTO - Arcom
Hmmm, I still have my genuine Motorola tuning tool set, complete with
official geeky pocket protector! It even has the huge fiber tool for those
old GGV's!
Doesn't Batwing offer tools anymore or are they just too pricey for what
they are?
Ken
At 03:49 AM 12/1/2005 -, you wrote:
I am looking for any of the older VHF Engineering boards or repeaters.
---Why?
Ken
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At 03:19 PM 11/27/2005 +0100, you wrote:
Can someone share why this ítems are so expensive???
---Because PT Barnum was right? :-)
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater
At 03:29 PM 11/27/2005 -0800, you wrote:
Also, those caps are probably not made anymore ...
Since I have some here, would you like to buy them Ken?
---Heh, I happen to have a few of 'em in the junkbox myself. I'll see your
caps and raise you mine
Ken
?) is it simply isn't worth it these days. Modern
radios are FAR FAR superior in just about everyway to those older G strips.
Ken
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, the absolutely greatest sounding repeater ever
created still falls victim to the radio talking through it
Ken
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At 08:34 PM 11/23/2005 -0500, you wrote:
http://www.ah6le.net/arcom/rc110.html
---For the record, the RC110 is currently unavailable, however the RC210
is (and is available in kit form)
http://www.ah6le.net/arcom/rc210/rc210.html
At 08:52 PM 11/23/2005 -0500, you wrote:
Is the 110 coming back?
Yes, at some point. Although other projects currently have priority
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater
At 04:27 PM 11/22/2005 +, you wrote:
Well, for one it will limit any locally generated mixing products
resulting from rectification in the PA transistors.
---Yes it will. But that is not the cause of desense, that is one of the
causes of intermodulation products.
Ken
At 08:15 AM 11/22/2005 -0800, you wrote:
I once had an Exec II RFPA that didn't like the duplexer load it was
TXing into. Had massive desense unless there was a circulator between the
TX duplexer.
---Makes sense. I know all about PA's driving a reactive load :-)
Ken
At 09:09 AM 11/22/2005 -0800, you wrote:
The resistive load isn't an antenna either.
---I generally face little resistance when it comes to antennae...
Ken
--
President and CTO - Arcom Communications
Makers of state
(and causes) of desense.
I can see a circulator being used to present a non-reactive load to a PA
(which may settle it down and remove *it* as a cause a desense) but not due
to a circulator's moreknown? function
Ken
on each port).
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete Kenwood TKR repeater packages!
We
At 10:54 AM 11/22/2005 -0800, you wrote:
If the PA and duplexer weren't happy together,
wouldn't I also get desense when running on the dummy
load also? Remember it's perfectly happy on a 500w
Bird load.
---You answered your own question. Suspect the antenna, feedline or both.
Ken
At 08:00 PM 11/21/2005 -0500, you wrote:
i want to know about the Flat audio ? and what is the applicaion for it
---Flat audio is what happens when you leave your opened bottle of audio
on the coffee table overnight
Ken
At 08:26 PM 11/21/2005 -0500, you wrote:
No, Ken. Flat audio is what you get when your HT is run over by a
pavement roller.
---Unless it's a vibrating pager that is run over. Then you have a pancake
motor.
Ken
base radio delivers 60
watts. I've had no problems with the arrangement in over 5 years.
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net
Guess I've been lucky so far then. 5 years and going strong
But I will keep a watchful eye out!
Ken
At 09:59 AM 11/14/2005 -0500, you wrote:
I have found that most amateur band couplers or diplexers
do not seem to operate well in full duplex 100 watt 2x environments
for very long
to build and should
give more then room for just about any situation. Two of my sites ended up
being done this way.
Then again, if you're needs are very simple, like a single small rack and
an antenna or two, maybe you can negotiate for a corner in a garage or
outbuilding.
Ken
At 03:39 PM 8/26/2005 -0400, you wrote:
Well I am cleaning out the parts drawers and I found a 5 watt amp for an
HT-220.It is older than dirt but it is good.
--- I assume since you said 5 watt, as opposed to 4 watt, it's a VHF one?
Ken
At 09:59 PM 8/23/2005 -0400, you wrote:
I never cease to be amazed by the number of people whom don't understand
that the PERIOD is the important thing here and that it was in the correct
place.
---I suspect most pre-menopausal women certainly know this!
Ken
(sorry, couldn't resist
At 09:16 PM 8/15/2005 -0400, you wrote:
*$5.00* Motorola Emergency HT RED in color
---Oh man! I haven't seen a red HT220 for 30 years! I just may have to
grab for posterity!
Ken
--
President and CTO - Arcom
capacitance. Either they built the crystal wrong or your
transmitter was modified (more than likely by a previous owner, attempted
to pull a too high xtal on channel perhaps?).
If you have the schematic, I'd look closely at the oscillator
Ken
At 09:20 AM 8/11/2005 -0700, you wrote:
If you have the schematic, I'd look closely at the oscillator
---Oh, one other thing. You did try to pull it on channel by adjusting
either the associated trimmer cap or adjustable inductor, yes?
Ken
At 09:46 PM 8/11/2005 -0500, you wrote:
Neil, I have a CTCSS decoder 131.8 on My 444.750 Micor unified Repeater. I
Have cable leakage so bad on the input 449.750 it keys up the repeater a
lot, Even with the PL
---Well...there's always DPL :-)
Ken
), transmitting AM, get into and become demodulated in an FM
receiver. And an FM receiver with a pretty darn good limiter to boot?
Ken
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broadcaster got into an FM receiver's IF.
Then again, I'm sure I haven't seen it all either. Live and learn I suppose!
Ken
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At 12:40 PM 8/5/2005 -0700, you wrote:
VOA.
---VOA isn't broadcast overseas but in NC I believe? Field strength has
got to be a definate factor!
Ken
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...
--As I said, live and learn! So how far away from the receiver was the SW
station?
Ken
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surprized any regular reader of it would even *suggest* using these types
of double shielded cables!
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
who runs MS Outlook without proper virus protection should be
drawn and quartered. Then again, anyone who runs MS Outlook... oh
nevermind
IMHO, of course :-)
Ken
--
President and CTO - Arcom Communications
Makers
At 01:48 AM 7/22/2005 -0400, you wrote:
Yeah Right USDHS is the First step to being American Nazis
I Vant to see your papers
-Between the above comment and your signature, I'm thinking you had a
bad experience with HS?
Either that or you're a Michael Moore fan?
Ken
(sorry, I've never
At 10:20 AM 7/22/2005 -0400, you wrote:
Sorry, Ken-look at that again. One doesn't normally put a cavity between
the output of the duplexer and the antennait would have to be broad
enough to pass both tx and rx.
---Ooops! Didn't catch the between duplexer and antenna part (that's what
I
there that, on an
occasional basis, that is figuring into the equation.
Now the hard part
You need to do the math, based on your xmt and rcv freqs and a 3rd (or
maybe even 4th and 5th) source of mixing freqs, that result in products on
your receive frequency.
Ken
receiver port of
duplexer.
---There are several good reasons to add an additional band pass filter,
your example being one of 'em.
Bottom line is that if your duplexer doesn't provide enough BP capability,
it is perfectly acceptable to add additional filters/cavities.
Ken
At 08:45 PM 7/21/2005 -0400, you wrote:
Did you also note what looked to me to be a flashing lite on the left
rear deck behind the deck speaker?
---Looks like a set of wig-wags to me...
Ken
--
President and CTO - Arcom
of difference. Preamp or no preamp in some cases.
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete Kenwood TKR
Hi, I would like to get some information on how to tune up a VXR5000
UHF repeater. Can someone please email me or reply to the group on how
to setup/tuneup one of these units.
Thanx
Ken
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on RF feedback.
Exactly WHAT type of RF feedback are you experiencing in the first place
and why do you believe moving the receiver to another enclosure would solve
it?
Ken
--
President and CTO - Arcom Communications
Makers
The Judge handed down a sentence of 120 days less 5 days for time served
followed by 3 years of probation. a fine of $1000.00 + assessments which
came to $3876.00 and must be paid within 1 year.
Gee, crime *does* pay.
Ken
.
I don't think we have the whole story
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete Kenwood
I have a 40 watt UHF GM300 I would like to tune down to 10 watts? Is
this a safe level to set to on the 40 watt units? I heard that if the
power level is set too low it will cause spurs? What is the lowest
power level I can set the amp to?
Thanx for reading.
Ken
Yahoo! Groups Links
but but the IRLP system would solve the problem in any case...
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete
generally are much worse in this regard (some MUCH worse than
others) and show on spectrum analyzers as grass.
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
as a sole propietership but
with some of the advantages of a corp, liability-wise. At least in our State!
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
as they tried to work through the
problem.
A, how I miss the repeater wars of the 70's too... g
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
was much of a user of the 22/82 machine (I migrated
from 2 meters shortly after our infamous war with Dr0nk down in San Diego
and never looked back!).
How about Repeater Appreciation Week ?
---Always the eternal optomist, eh? g
Ken
several users on the system.
---Either your repeater is AMing a lot, or isn't exactly on 132.950 (slope
tuning an FM signal on an AM receiver).
Did they provide callsigns?
Ken
--
President and CTO - Arcom Communications
if the frequencies were reversed.
---My first reaction is to ask..how are you driving the xmtr, audio wise?
Did you bypass the limiter/filtering?
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art
connect it to the IRLP board? How about continuity to ground on the IRLP's
PTT line when NOT connected to the Mitrek.
Maybe the switching transistor on the IRLP board is bad?
Ken
--
President and CTO - Arcom Communications
or another. How are
you modulating the repeater's xmtr?
Ken
At 12:11 PM 6/25/2005 -0500, you wrote:
I've just had a couple of complaints of splatter on a repeater that I now
own.
We overhauled it, retuning the cans, and setting the TX and RX back
on frequency, replacing some cables that were dubious
monitor. So the answer is
yes! :-)
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
We offer complete Kenwood TKR repeater
At 03:05 PM 6/22/2005 EDT, you wrote:
Both look brand new out of the box. I have a decision to make which one to
sell and for how much. Any suggestions?
---You should sell the 1600 to me for $100.
Ken
(well, you asked for suggestions!)
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At 12:21 PM 6/21/2005 -0700, you wrote:
Always terminate the un-used port in a 50 ohm load.
---Of course but I'm a firm believe in using a pad on every port. It's the
only way to guarantee a 50 ohm load on them.
Ken
Project 25 to have an exact understanding though :-)
Ken
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reason, to present an accurate 50 ohm load.
I never tune a duplexer (or cavities) without a pad on each port.
Ken
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What's ur call?
Ken
At 10:28 AM 6/14/2005 -, you wrote:
HAM RADIO EQUIPMENT FOR SALE
The lists is growing, I have included more stuff for sale in my
catalog. You
can browse thru the photos and descriptions to see the stuff.
Click on my link
http://a1cmugs.com/v-web/gallery/albums.php
I
You're worried about less than 3 Db? Why?
Ken
At 07:23 PM 6/14/2005 -, you wrote:
Hello all from Don KA9QJG, I have a Hamtronics 220 Exciter T-301
Peaked at 2 Watts That is driving My TE-System repeater amp gives me
80 Watts, Amp is rated at 130 Watts Continues, With the 80 Going
a steel
building.
Thirdly, your amp will live much longer throttled back as it is versus
running it balls out. That it's rated continuous duty doesn't change
anything.
IMHO of course :-)
Ken
--
President and CTO - Arcom
would perform even better but there are too many variables to say
for certain.
I don't believe additional power on the transmitter side is going to make
any *substantial* improvement.
Ken
--
President and CTO - Arcom
At 06:37 PM 6/14/2005 -0700, you wrote:
Hey Ken,
It's dB ... not Db ...
---Actually Neil, it's a little known factoid of History that Bell was
actually more concerned in roadway paving than he was in working out any
sort of logorythmic scale. But as so often happens, he found
At 08:55 PM 6/13/2005 -0500, you wrote:
Looking for anyone that is using a controller such as the Link Comm. Club
Deluxe with a TKR-750K2.
Is it possible to turn on/off the K2 internal functions via controller
outputs?
---Exactly which internal functions are you looking to control?
Ken
these are not particularly
high-Q, therefore it may take more than one to give you 'sharpness' you need.
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
that :-)
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
It was great to meet many of you at Dayton 2005!
We offer complete
of one dealer in particular who has been on
them for a very long time regarding this yet it hasn't been corrected. And
since it's all done in firmware, all it would take is to make the change
and distribute the new version.
I suppose much depends on what they consider valid, eh?
Ken
argue it's a real problem but not every might agree!
ps: Never did hear back... ya like your Dayton picture?
--You did a good job on the pics but picked the wrong subject :-)
Ken
--
President and CTO - Arcom Communications
Hi Skipp
Oh, I can think of a few workarounds myself. As a matter of fact, I have
used one of 'em repeatedly.
It will be interesting to see what the PTB have to say about the proposed
change.
Danke
Ken
At 01:53 AM 6/10/2005 -, you wrote:
Hi Ken,
If I understand the below description
At 07:34 PM 6/8/2005 -0500, you wrote:
This would help in the case of an approaching thunderstorm, where the
charged leaders are beginning to form.
---You could always just have a beer. Then 30 minutes later, you'd have a
Corona discharge!
Ken
At 06:14 PM 6/8/2005 -0700, you wrote:
There is a fuse on it. I don't have the book handy and can't remember
the exact size.
---An educated guess for a 100 watt out UHF amp would be a 25 amp fuse...
Ken
--
President
and not to program any CTCSS (QT) encode within the Kenwood at all. Then
you can feed the external encoder's output into pin 8 (the Tx Data input)
of the DB25 on the back. You can then control that external decoder with
whatever...
Ken
of which is that there are 4 time delays based
on 4 different levels, all of which are programmable by the owner. Make the
delay versus quieting percentage curve whatever you want it to be!
Ken
--
President and CTO
At 01:35 PM 6/7/2005 -0500, you wrote:
At what modulation index will the 1st Bessell null occur?
-2.405
What do I win? :-)
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater
At 11:22 AM 6/6/2005 -0500, you wrote:
well for some reason i just can not think of this. or im getting to old
,,hehe
what is the formula for DB ( power )?
---Here's a link:
https://ewhdbks.mugu.navy.mil/decibel.htm
Ken
We're talking an HLN-4020A, dual reed type.
Either I missed it or it can't be done but is there any way to full
duplex the thing? The reedless 4181 deck does it but not the dual reed one?
Ken
--
President and CTO
At 05:47 PM 6/3/2005 -0700, you wrote:
Have tried with the dual reed board, it can't,
---Thanks, I was afraid of that. No biggie, this is just a backup radio I
was getting ready anyway...
Ken
--
President and CTO
At 03:36 PM 6/1/2005 -, you wrote:
What is the repeater controller of choice these days
We have IRLP Echolink on the repeater also
Right now it is VHF only however down the line we might want to add UHF
I would be interested in your suggestions
---May I suggest ours?
had
any made but it's not a big deal to perfboard the thing either! :-)
http://www.ah6le.net/hf_squelch.html
Ken
(I survived Dayton!)
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater
At 09:26 AM 5/23/2005 -0700, you wrote:
Can you direct me to the schematic for the squelch circut?
---Sorry about that! This was a project I did many years ago and haven't
looked at for a while (hence the lack of a link to the schematic on the
webpage!)
http://www.ah6le.net/hfsquelch.bmp
Ken
it for a lot less.
Anyway, the commercial one available can be found:
www.naval.com/vos.htm
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
with more veracity every year.
One possible explanation anyway...
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
Come
At 12:56 PM 5/18/2005 -0400, you wrote:
Anyone taking bets on how high the gas prices will mysteriously raise
for the weekend? I'm betting $2.37. Not that it's gouging or anything.
---Only $2.37? That's less than we're paying here in Oregon now!
Ken
anyway!).
http://www.ah6le.net/arcom/rc210/rc210.html
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
Come see us
At 02:43 PM 5/17/2005 -, you wrote:
Who's going, where to meet!
---From what I've gathered from reading posts about it, it seems many
folks are going to Dayton and they'll all be easy to spot, as they have
thining hair, a pot belly and will have a radio on their belt.
Ken
(well, at least I
environments? Copper
isn't the most thermally stable material (which is why G-d invented Invar g)
Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http
display assembly (which
I did).
I use my V7a as a dedicated VHF/UHF at home and I developed the line
problem. Still, $150 for the new display was ok with me, as I like the
radio anyway. And I still couldn't have replaced the entire radio with
something identical for anywhere near that!
Ken
Has anyone had desence due to the fact that the repeaters antenna is
too close to the repeater its self? Like 12 feet of vertical
seperation and 2 feet horizontal?
---No but my father once told me I never used desense I was born with!
Ken
501 - 600 of 837 matches
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