Here is how you do it..
Take a T connector and put it on one of the pass loops. Leave the other loop
unterminated. Adjust the loop position so that the notch depth is about 9dB for
0.9dB IL through if I remember correctly - this is done like measuring a notch
cavity with the spectrum
For those of you wanting to add a Battery Back up to your
repeater or base-station power supply...
Samlex makes an external battery backup box with the model
number of BBM-12100. The online available User Manual
for the box contains a lot of good information and a circuit
diagram. So if
So you actually come up with an RL value and equate to an IL value?
lh
On Wed, Apr 21, 2010 at 9:08 AM, hfarrenkopf hfarrenk...@yahoo.ca wrote:
Here is how you do it..
Take a T connector and put it on one of the pass loops. Leave the other
loop unterminated. Adjust the loop position so
Jeff,
Speaking of the RLB, did you ever get one of the newer RLB's from Amtronix? I
still interested in someone measuring the parameters of that unit against one
of the more expensive RLB's, such as the Eagle brand.
If the measurements are fairly close to each other, then the Amtronix RLB
Yep, I did get one. I did some preliminary testing and it compares
favorably to the Eagle in most regards. Rick is contemplating making some
additional refinements, some of which are based on my testing, so I'm
waiting to hear back from him. If he decides to make changes, I'll wait
until he
Anyone know what Frequency this handles? I think its a UHF but not sure what
split.
Thanks!
John Hymes
La Rue Communications
10 S. Aurora Street
Stockton, CA 95202
according to a post by Eric Lemmon
http://www.mail-archive.com/repeater-builder@yahoogroups.com/msg02135.html
The TLB1414C2 is a 100 watt continuous duty power amplifier for 42-50 MHz.
Take a look at the board and you can quickly confirm whether or not it is a UHF
PA.
Contact me offline if
1 in at 144 MHz is approx a 5% change and will affect slightly the RL esp if
the source impedance isn't 50 Ohms J0.
The overall electrical length technically is that of the coax at its VF plus
the length of the loop (in air). Adding an elbow can make a difference at this
freq.
W6 MTF
--- In
TLB would be Low Band.
Joe M.
La Rue Communications wrote:
Anyone know what Frequency this handles? I think its a UHF but not sure
what split.
Thanks!
John Hymes
La Rue Communications
10 S. Aurora Street
Stockton, CA 95202
Anyone know where a high power MSF-5000 VHF station can be found?
I was thinking the model *may* be:
C83CXB7106BT, but there could be some other odd ball models out there, like
version A's or Rack mouunts, or different control than tone control.
Thanks,
--
James Adkins, KB0NHX
Hi John, If you don't have a need for it,
drop me a line. Just putting up a 6 meter
repeater have the rest of the guts.
Thanks,
Tim W5FN
Hi group,
First off, hopefully this post is not going to conflict with Kevin's
restrictions on the FCC rules regs on this forum.
I'm looking for some information from others, that in the past, have had
situations with local / county / state governments concerning antenna height
and what
Don,
The ARRL would be a good place to start on this, but it probably will have
nothing to do with the FCC. PRB-1 requires reasonable accommodation by locals.
It doesn't give hams carte blanche. If the family didn't dot the i's and cross
the T's with the locals, which in many cases requires
Around here the County doesn't care about towers, as long as they are 40'
and under and will fall on your property.
Hi
Does anyone know of a lowband R100 that has successfully been converted to 6m?
73
Martin
I was a Radius dealer for quite a few years and only saw VHF and UHF R100
versions.
Bill
KB1MGH
From: cruizzer77 atlant...@gmx.ch
To: Repeater-Builder@yahoogroups.com
Sent: Wed, April 21, 2010 5:50:45 PM
Subject: [Repeater-Builder] Motorola R100 lowband on 6?
Well...it probably would be considered off topic but I'd respectfully
request Kevin maybe let this continue briefly considering we're dealing with
a 10 year old handicapped child who's probably being a little more sensible
and mature than his adult neighbors.
I'd probably go to the ham-law
Moto. never made a low band version.
We were moto. dealers for many years, only VHF and UHF, DPL or PL...
- Original Message -
From: Bill Smith
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, April 21, 2010 6:00 PM
Subject: Re: [Repeater-Builder] Motorola R100 lowband on
Pretty much the same as in my area (NE Ohio). Limit of 35 feet, building
permit ($40.00) and sketch by owner/builder of proposed installation
(professional engineering data not required). Over 35 feet can be accommodated
by a request for variance. That starts to get a bit more costly,
The article was written very poorly and the facts skewed to bully a
handicapped child.
“They started off with just a little antenna which was fine then the
monstrosity came about the big tower and that's the one we were really
worried about. We do see it rocking back and forth,” Eric Scott said.
No, using a T connector on the loop, you have a notch cavity although it is a
non symmetrical notch - doesn't matter. You adjust the loop for a notch depth
of say 9dB using the T one loop at a time and that balances the impedances of
the loops in and out so that they are the same. The notch
Chuck,
I actually got just the opposite intent. The mention of his handicap and
community contribution through amateur radio paint a clear, sympathetic
position. The reporter's job is to present both sides of the story. Accurately
reporting the position of an opposing neighbor is required for
Fair enough. I guess we can all interpret things different ways.
Maybe I'm the one without a Pulitzer in my future. :-D
Thanks for pointing out my skewed judgment considering the news background.
Chuck
On Wed, Apr 21, 2010 at 7:46 PM, Paul Plack pl...@xmission.com wrote:
Chuck,
I
Just looked up the settings in my files. 9dB notch at 160MHz produces 1.4dB.
11 to 11.5 will produce your desired 0.9dB Insertion Loss.
14 to 15 dB produces the 0.40dB IL.
The cable adds 0.2dB. The settings of 2 cans from Sinclair are typically 1.0,
2.0 or 3.0dB.
Larry, are you still up in
OK. That makes sense. How did you arrive at 9dB for .9 IL?
And about the cable lengths between the pass cavites, I have found 3
different documents from Sinclair that gives me 3 different lengths for the
same frequency. One document shows only 2 different cable lengths for the
entire VHF band. If
Are they for top mounted loops or side mounted. The side mounted loops had
different loop lengths for the different insertion losses and hence the cable
lengths were different. Unless the top loops were extra large for making a
wider pass window, they should be very close in lengths (within
Harold,
I used 2 cans in my initial post for simplicity. What I'm working on is a
2037, 3 pass and one notch and I need 3 dB, so 1 dB per can. I'm not moving
them very far from the original setup, but I want to verify the IL. Is there
a published chart for these settings?
Indeed, still in VY0
These cans are recent vintage and have top mounted loops.
On Wed, Apr 21, 2010 at 8:24 PM, hfarrenkopf hfarrenk...@yahoo.ca wrote:
Are they for top mounted loops or side mounted. The side mounted loops had
different loop lengths for the different insertion losses and hence the
cable
I'm attempting to update an existing repeater system that currently uses a Hall
voter in tandem with a ComSpec TP-38 CTCSS repeater tone panel. The replacement
RF deck is a Kenwood TKR-850 Series I. The previous RF deck was a KSG-4500,
operating in a plain, dumb, duplexed TX / RX mode with no
Several weeks ago it seemed that someone had an interest in acquiring
UHF Motorola P50 radio sets. If anyone is interested, email me directly
I have a fair assortment compact / standard and keypad equipped p50+
complete units, boards, chargers and I would love to clear away some space.
BRIAN
Brian,
Please confirm, are these P50+ or SP50+ radios? They are not the same. A
list of the complete model numbers would be very helpful to those having
interest in your radios.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
I don't know if it was published.. Set your cans for 0.9dB IL each and your
end result will be 3.2dB. The notch cavity should be set to maximum depth
unless you have a very close frequency down the chain (0.5MHz away).The notch
is tuned to the pass frequency.
The 3 pass cans will produce 3
At 05:41 PM 4/21/2010, midcom.audio wrote:
I'm attempting to update an existing repeater system that currently
uses a Hall voter in tandem with a ComSpec TP-38 CTCSS repeater tone
panel. The replacement RF deck is a Kenwood TKR-850 Series I. The
previous RF deck was a KSG-4500, operating in a
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