At 04:30 PM 2/12/06, you wrote:
Chances are nobody will notice. But then again, they
probably wouldn't
notice if you put a 3 dB pad between your duplexer and
receiver either...
I have tried the experiment of going up to the site for a couple hours,
and not even opening the door..
Well, exactly how tall WERE the weeds and
how far off the ground is your antenna? :-P
Joe M.
Mike Morris wrote:
Locally the Forest Service requires twice a year weed whacking
around the building. So we go up, open the door, plug in the
extension cords, do the deed, and leave. Then we
What you really need to do is a load analysis to see
how much average current you are using over a larger
period of time. 10 amps might be the peak, but most
equipment spends the majority of the time at idle
current.
very simplified- you could take 4.6 amps/hour for
about 100 hours. real
Kevin,
Before I take a stab at this could you give me a rough
estimate of the physical size of the battery? Where I'm headed with this
is I'm trying to ascertain if your cells are truly rated at 460 amperes for a 10
hour duration or whether it's actually 460 ampere-hours (amps multiplied
Kevin,
Given a power consumption of 10A, 460Ah batteries will give you about 46
hours of stand-by use...
The formula I used was:
(available) 460Ah / 10A (consumption) = 46 hrs (time)
Whether the over 10 hours affects the equation I'm not certain... If it
does, maybe 460 hrs is more like it.
Hi guys .I am interested to find out the better ways to link multiple
repeaters together.At the moment i am using for each link 2 data
radios back to back on a site between the sites but this is a slow way
to link 3 or 4 sites together using one repeater site as the central
site with all the
Ray,
I may be able to be of assistance in this area grab a cup of decaf, and
read on...
It sounds as if these guys are working on a buffer based system. AS FM
Broadcasting rules have been referenced before, we will call this approach
the 73.207 approach, which is a minimum distance type of
I need advise about making link between 2 (MTR2000) repeaters .?? and if in case to making link between the VHF(MTR2000) and HF (Codan SR),what we must do ?Thanks
Brings words and photos together (easily) with
PhotoMail - it's free and works with Yahoo! Mail.
--- In Repeater-Builder@yahoogroups.com, Brett [EMAIL PROTECTED] wrote:
Variable 1 amp to 100 amp.
12v to 60volt.
Brett
Not on that heatsink... 6000W?
Yahoo! Groups Links
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I found the Hy Gain V6R to be an excellent choice of antenna for 6M repeater Very Rugged and well designed.
Yahoo! Autos. Looking for a sweet ride? Get pricing, reviews, & more on new and used cars.
YAHOO! GROUPS LINKS
Visit your group "Repeater-Builder" on
I am looking for a replacement antenna for my X50A.
Someone turned me on to Tram a while back and I had some
questions. Does anyone have a website for them? Also who is a
good distributor? and what antenna offers the most gain on 2M?
YAHOO! GROUPS LINKS
Visit
I need to buy a replacement for a MRFXXX device I blew up over the weekend. I
know RF Parts has these, but have no experience with them.
Is there any other place you guys have used that you would recommend?
Roger
W5RD
Roger White
Murphy, Texas
Yahoo! Groups Links
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RF parts has a good selection of parts in stock, but their shipping leaves a little to be desired.On 2/13/06, [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
I
need to buy a replacement for a MRFXXX device I blew up over the
weekend. I know RF Parts has these, but have no experience with them.Is
We have had a multiple repeater linking system for several years that has
worked flawlessly. The system is VHF (several VHF Repeaters) that is linked
together using a Hub Repeater. A friend Leon N2HLT, you can see his site on
the web by entering his call) has a UHF system that has about fifteen
The pain of dealing with the local goverment regs
really put a wet blanket on back-up Diesel Generator
operation.
You can reduce the headache over 50% by using, converting
or conversion to propane where possible and most often
more practical.
cheers,
skipp
Kris Kirby [EMAIL PROTECTED]
At 2/12/2006 06:44 PM, you wrote:
I had to produce a ton of studies for my 6m pair. I based my studies on
Sounds as if you actually had trouble finding a clear 6 meter pair. Here
in SoCal we have many vacant pairs on 6; is 6 really that popular in your area?
Bob NO6B
Yahoo! Groups
Bob,
DC through blue light is popular in my area grin... I live just South of
Washington DC. We have probably the highest per-capita density of hams in
the nation. You should be around for a VHF and above contest weekend...
tough to find a spot operate!! Check this
Sorry, it appears that the page has been modified to only show one zipcode..
you used to be able to zoom out and populate the map. Doesn't appear to be
true any longer... the link is in the left-hand column..
73
Mike Perryman
www.k5jmp.us
-Original Message-
From:
On Monday 13 February 2006 12:34 pm, Mike Perryman wrote:
I really wanted a 500kHz split so that I could use the heliax-duplexer
approach..
Well you can build the heliax duplexer for any split you want. Jeff's newer
design using a hybrid ring is truly cool, but alas I dont have VNA (yet) so
I am already crystalled-up for 500kHz... and the heliax-duplexer is already
built and working fine. I am contemplating a move to Texas soon.
Allotments are much easier to come by there.
73
Mike Perryman
www.k5jmp.us
-Original Message-
From: Repeater-Builder@yahoogroups.com
Hello to the group.
I am cleaning things out here and I have 2 pair of 220 notch cavities
for sale. They are 3 1/4 square and 12 long, N conns. and silver
plated. I also have some mini-hardline cables that came with them if
someone wanted to build a notch duplexer with them.
Asking $75 a
Well, the community RX antenna was at 120 feet (transmission-line
powered preamp up the ass of the antenna), and the transmit
antenna was at 80 feet...
Based on the reports, the 6 to 9 high weeds were having an effect
best described as being anywhere between -6db and +10db.
Mike WA6ILQ
At
The element out of an Electric furnace works well for very large currents
John VE3AMZ
- Original Message -
From: Dave VanHorn [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, February 13, 2006 10:01 AM
Subject: [Repeater-Builder] Re: Cheap Tunnel Heatsink
--- In
Besides Henry Radio, who else makes a continuous-duty,
repeater service, stand-alone, add-on UHF power amp
that will accept around 20 watts of drive and produce
150-200 watts, in the 440-450 MHz range? Operation on
+14VDC would be preferred. Reliability, quality of
workmanship, and service are
Volt-com they also have another name but it is still them.
1-800-USA-MAKE
We have 6 in service for a number of years and have never had to do anything
to them. Very happy with them.
Maire Communications
Florida
- Original Message -
From: Bob M. [EMAIL PROTECTED]
To:
Mike, I think the original question was supposed to be how *high* is your
antenna... Think Cheech and Chong; Oh wow, Man!!
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Morris
Sent: Monday, February 13, 2006 1:18 PM
Repeater-Builder is a Tram distributor. What model
are you looking for??
Their largest is a 1491.It's 14' 10" tall. It's
listed as having 3 5/8 waves. 7.8dB (open for discussion) and is rated at 90MPH
wind speed.
They also have 6.7 dB versions and 4.5 dB
versions.
I have no personal
TPL makes one: 20-30W drive = 300W output.
http://www.tessco.com/products/displayProductInfo.do?sku=36628eventPage=1
There are several that make 150W output - TPL and Crescend come to mind; I'm
sure there are probably others. It seems like 150W is the break point --
some do not manufacture
Hi Doug,
The battery is made up of 6x 2 volt cells.
Each cell is large, can be lifted by one person, but not easy or light.
(Talking from lifting them myself)
Each cell is about 400mm high, 200mm wide, and 130mm deep. They have 2
positive and 2 negative terminals.
The casing is heavy clear
Repeater-Builder is a Tram distributor. What model
are you looking for??
What models can I get? Is there a website listing the companies offerings?
At the moment I am looking for a high gain VHF replacement for the
short diamond we got stuck with when the pole at the new repeater
Kevin,
Thank you for the dimensions... That helps a
lot.
I took a look at several different lead-acid batteries at work
today and calculated an AMPERE-HOURS per cubic inch factor. Applying that
to the dimensions of your cells I am almost certain the battery specification
you are seeing
DCFluX wrote:
Repeater-Builder is a Tram distributor.
What model are you looking for??
What models can I get? Is there a website listing the companies
offerings?
http://www.repeater-builder.com/products/antennas.html
Anything larger?
Sorry, no...
Is it
have had more problems with the TPL amps and lighting and they have gone
back for more repairs than the Crescend/Volt-com units. Also have one TE
but when ordered it was to be 150 watts out with 5 watts in. on freg 460.xxx
got the amp it max is 137 watts and never could get 150 watts out.
Mike Morris wrote:
Well, the community RX antenna was at 120 feet (transmission-line
powered preamp up the ass of the antenna), and the transmit
antenna was at 80 feet...
Based on the reports, the 6 to 9 high weeds were having an effect
best described as being anywhere between -6db and
I could fix that problem with a short piece of Scotch 33 Black over the
reporting station's S-Meter :)
Mike Morris wrote:
Based on the reports, the 6 to 9 high weeds were having an effect
best described as being anywhere between -6db and +10db.
Mike WA6ILQ
Mike Morris wrote:
Locally
[EMAIL PROTECTED] wrote:
Speaking of which, I look with despair at Yaesu's newest offering, the
FT-1802, which STILL doesn't have split tone. We need more complaints sent
into the big 3 about this.
Know you're probably not looking for such a full-featured rig for mobile
VHF/UHF repeater
Dennis, I believe the one I had long before that one was a QT-350, but
it had a crystal controlled exciter.. other than that, I dunno..
NA6DF
--- In Repeater-Builder@yahoogroups.com, Dennis Wade
[EMAIL PROTECTED] wrote:
Hello everyone,
I've been given a compete Quintron paging
Hi Bob,
Spectrum Communications
http://www.spectrumcoms.com/
I had to mention this company it's been over a year
since the last Spectrum flame war :)
Mike
--- Bob M. [EMAIL PROTECTED] wrote:
Besides Henry Radio, who else makes a
continuous-duty,
On Mon, 2006-02-13 at 18:51 +, Repeater-Builder@yahoogroups.com
wrote:
Message: 14
Date: Mon, 13 Feb 2006 01:17:03 -0800 (PST)
From: hm2006 robin [EMAIL PROTECTED]
Subject: MTR2000 repeaters Link
I need advise about making link between 2 (MTR2000)
repeaters
Never underestimate the power of suggestion.
Chuck
WB2EDV
Dave VanHorn wrote:
I have tried the experiment of going up to the site for a couple hours,
and not even opening the door.. Then ask if anyone notices any
difference in performance. :) You get a feeling for who is going to
We've got lots of paper 6-meter repeaters around here. Either that or
they work terribly.
Chuck
WB2EDV
Bob Dengler wrote:
At 2/12/2006 06:44 PM, you wrote:
I had to produce a ton of studies for my 6m pair. I based my studies on
Sounds as if you actually had trouble finding a
Where are you located? Logistics areeverything...
n4rpd wrote:
Greetings,
I am in desperate need of technical help. I have been attempting to
repair a VHF repeater for a non-profit organization that needs this
box for a portable setup to support parades and special events. The
setup is two
You may try posting the part number here,may be some lurking around out
there...whats the mystery?
DCFluX wrote:
RF parts has a good selection of parts in stock, but their shipping
leaves a little to be desired.
On 2/13/06, [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]*
[EMAIL PROTECTED]
The Diesel Generators are fine just local govt regulations, however
propane LP Gas are cheap source of fuel.
mark h.
skipp025 wrote:
The pain of dealing with the local goverment regs
really put a wet blanket on back-up Diesel Generator
operation.
You can reduce the headache over 50%
I just ordered some stuff there apparently I was told the Engineer is
unavailable, and someone else is moving to another office I asked for
an email confirmation I will hope to get my parts @ the end of this
week. So we will wait - n - see .
mark h. ab8ru
DCFluX wrote:
RF parts has a good
Hi Group
Can anyone tell me how to get COS out of an HT600?? I wont to use it
for Linking.
Thanks Freddy
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Looking for info on building a 900 mhz ham repeater.
Bill N2XKO
Yahoo! Groups Links
* To visit your group on the web, go to:
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[EMAIL PROTECTED]
* Your use of Yahoo! Groups is
Well, gang, I'm a dedicated diesel nut with a Case 580 backhoe, a John
Deere 1070 utility tractor, a
Dodge/Cummins pickup and I just sold my old 1981 Mercedes Benz 300 SL
turbodiesel.
However, when it came time to install a standby generator for my home, I
opted for a propane
powered
What do ya need, Bill. I have a friend here who has a bunch of 900 MHz
narrow-band radios.
I have no interest in this, just FYI.
73,
Dick W1NMZ in southern CA
- Original Message -
From: Bill Wilson [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: 13 February, 2006 17:45
On Mon, 13 Feb 2006, Dick wrote:
What do ya need, Bill. I have a friend here who has a bunch of 900 MHz
narrow-band radios.
I have no interest in this, just FYI.
Check out the 900mhz and AR902 groups here on yahoogroups.
--
Kris Kirby, KE4AHR [EMAIL PROTECTED]
BIG
Kevin,
I suspect that you have lead-acid wet cells, which emit corrosive vapors and
hydrogen gas when charging. Be very careful to enclose these cells in
containers that are vented to the outside air. Normally, one would use
sealed, nonspillable cells for such duty.
Your rough calculations are
Well it seems that RF Parts co has someone at UPS or some affiliate sent
me an email and that I should get my parts on Febuary 15th Wed. so being
that I spent $134.00 on the card I will let everyone know the results
unless the Weather Channel TV 8 TV 3 weather forecast says snow and
snows
DCFluX,
The antennas listed on the page Kevin gave are only
a few of what is available. I will try to get some time tomorrow to get a few
morelisted. The ones listed on the page currently are the ones we normally
stock. I am going to try and get a few more different kinds so we can have a
Title: Message
I
ordered a set of 2SC1972 and a 2SC1971 from them around last Tuesday
(2/07), Delivery is scheduled (via UPS) on the 16th of this month. I
know these weigh in under a pound and Priority Mail would have it here in 3 days
foor around $4.00. I am betting UPS charge will be
At 2/13/2006 16:01, you wrote:
[EMAIL PROTECTED] wrote:
Speaking of which, I look with despair at Yaesu's newest offering, the
FT-1802, which STILL doesn't have split tone. We need more complaints
sent
into the big 3 about this.
Know you're probably not looking for such a full-featured
Or a vivid imagination grin!!
73
Mike
K5JMP
www.k5jmp.us
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Chuck Kelsey
Sent: Monday, February 13, 2006 7:47 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: UHF Power
I see you picked up on the reference to politics that I wasn't very hip
to... I know of at least one director who has about a dozen pairs on
various bands
73
Mike
K5JMP
www.k5jmp.us
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Chuck
[EMAIL PROTECTED] wrote:
I was happy to find that the FT-857 will HAPPILY do split-tone.
Yes, but kind of ridiculous to use an 857 just for VHF/UHF.
That's why you just use it for ALL the bands it'll work and enjoy the
split-tone feature in the process! ;-)
(Ooh, I was s close to
I just listed that one because that's what he was indicating he wanted... I
have a Crescend on the air now, and it's working beautifully.
Besides, I believe it was the informed masses here that recommended Crescend
in the first place!! :-)
-Original Message-
From:
There are 2 Henry 3CX800A7 Amps on ebay right now - a 2M 2002 and a 432,
2004A. Nice ampsQRO
Did VOCOM evolve into Crescend??? Sure make reliable amps...
NU5D Steve
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of N9WYS
Sent: Monday,
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