Thanks Kevin-you are right---my noticed downtilt
meant to say noticed uptilt as the terraine inland
from this site increased in HASL .
Thanks again Kevin
Regards
Bradley Glen
--- Kevin Custer [EMAIL PROTECTED] wrote:
Hold on there Bradley...
An antenna that is built for a higher frequency
of the efficiency of the collinear design lies at
the first radiating element - reduced radiation as one
extends to the end of the antenna.
Good luck
Regards
Bradley glen zs5swt /zs5wt
--- Chuck Kelsey [EMAIL PROTECTED] wrote:
Thanks for saving me all the typing ;-)
Chuck
WB2EDV
Kevin
the
isolation.Also stick to high quality connectors and
NOT PL259 -these are at the bottom of the impedance
stability list.N-Type are always good .
Hope this helps you
Regards
Bradley Glen ZS5SWT
http://mwmbers.harc.org.za/zs5swt
--- Ian Wells [EMAIL PROTECTED] wrote:
These sites are 10-15kms from
I work on GSM equipment and technically they have no
clue-I suggest they get an introduction to GSM course
for DUMMIES
Regards
Bradley ZS5WT
--- Dave VanHorn [EMAIL PROTECTED] wrote:
--- In Repeater-Builder@yahoogroups.com, KA9QJG
[EMAIL PROTECTED] wrote:
Well forget looking for Tower
Good Day
If you are looking for a leased line unit , have a
look at the Motorola units.This product used 4 wire to
impliment the 6wire (TX /RX /E /M /) by means of
inband signalling.All signalling are upper audio
frequencies are 2710 hz etc .Leased line audio
response is 300-3400hz)
You could
Gm 300 does have an internal deviation setting (max
dev )on the rf board side of the radio.
R302 -VCO mod being max dev and R164 pot being Ref
(ctcss)
There is also the squelch pot R60.
I do have some mods for bi-level squelch on these
radios that work just as well (better ) than the Micor
web page for my repeater and other
info .
Regards
Bradley Glen ZS5WT
http://members.harc.org.za/zs5wt/
--- Bob M. [EMAIL PROTECTED] wrote:
Is there an official procedure for adjusting both
R302
and R164? I thought those were set at the factory
and
the RSS deviation was supposed to be used
array so you could ask around for one or buy it off
the shelf-these are frequenct contious.
Regards
Bradley Glen ZS5WT http://members.harc.org.za/zs5wt
--- Mathew Quaife [EMAIL PROTECTED] wrote:
How about a lead to such vendors and some model
numbers as well, would be helpful
-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On
Behalf Of bradley glen
Sent: Tuesday, November 22, 2005 5:19 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Flat audio -use of
compressor
Good Day
I would like to have comment on the use of the
compressor
Good Day
I would like to have comment on the use of the
compressor on the repeater hardware between the rx and
tx units , with that repeater run up using the flat
audio principle.
What will happen to the existing audio's attack/decay
stats?
The expeimental unit made for this test- specs for
bradley glen wrote:
Good day All
I am still looking for a 4 channel voting
circuit to
place voting on my UHF linked system.
The two channel on Repeater Builders page will
not
suffice.
Regards
Bradley Glen ZS5WT
http://members.harc.org.za/zs5wt
Best
Good day All
I am still looking for a 4 channel voting circuit to
place voting on my UHF linked system.
The two channel on Repeater Builders page will not
suffice.
Regards
Bradley Glen ZS5WT
http://members.harc.org.za/zs5wt
__
Do You
://members.harc.org.za/zs5wt
Regards
Bradley Glen ZS5WT South Africa East Coast
--- Les [EMAIL PROTECTED] wrote:
The Zetron Model 38A Tone Panel I am using for our
local 2M repeater
ait is only used for ident tail functions I do
not want the
repeater audio routed through it. Therefore I need
Hi
As far I I can remember the 38 only did ctcss where
the 38A did ctcss and dcs.
You may want to check that the 38 had 94.8 hz tone
missing , it has been quite some time since using the
38 .
Regards
Bradley Glen ZS5WT
--- Rich Garcia [EMAIL PROTECTED] wrote:
I just got a Zetron Model 38
off.
Our GSM sites all clock off the incomming E1 link.
Just a thought
Regards
Bradley Glen ZS5WT
--- Paul Finch [EMAIL PROTECTED] wrote:
FYI,
Quintron's offsets ran 2 to 6 cycles per transmitter
at the most. 20 cycles
if getting audible. At 2 to 6 cycles the system
sounds pretty good
Hi
Have a look at Simulcast Solutions webpage as they
have much info on their site that is extremely
interesting.
Remember -frequency-phase and deviation from each
transmitter is very important.
Regards
Bradley Glen ZS5WT
--- Steve Rodgers [EMAIL PROTECTED]
wrote:
Thanks for all
Good day all
I am looking for a circuit diagram for a 3 to 4 or
more channel noise/voting circuit .
Non intelligent (uP) controlled due to high lightning
rate per annum.
Regards
Bradley Glen ZS5WT
__
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Tired of spam? Yahoo
with thoe panels are the Max 232 Ic
that is close to the dB9 connector-replace to start
off with.
I will send you some software to assist you.
Regards
Bradley Glen ZS5WT B-Comm Node 8300
--- Tim Billingsley [EMAIL PROTECTED] wrote:
Zetron 38A 702-9075 rev. P
I have built the serial interface
Hi
Dependant on the typr of filtering used .The standard
is either a cavity or a 2nd harmonic filter which is
very small in size.1 by 1 .
Regards
Brad ZS5WT
--- skipp025 [EMAIL PROTECTED] wrote:
The obvious answer would be the amount of
energy coupled to the two-loop bp cavity
output
-field
coverage using the same principle.
Regards
Bradley Glen ZS5WT South Africa
--- Thomas Oliver [EMAIL PROTECTED] wrote:
I saw an article on something like this myself,
There was this guy that had a tower with very wide
face (20 ft.) and wanted to have an omnidirectional
pattern so he
Hi
All my 6 linked uhf ham system are made up of
commercial.
General rule of thumb:If you use chrystal-generally
have narrow front ends so the receive is better
protected.The older synthesised radios of the 80's
also have good frontends.
Be careful of using han gear as they are nowdays
not be destroyed , only transferred.
Good luck
Bradley Glen ZS5WT South Africa
Naturn UHF Repeater system
--- nj902 [EMAIL PROTECTED] wrote:
--- In Repeater-Builder@yahoogroups.com, Jim B.
[EMAIL PROTECTED] wrote:
... Another thing to think about-the 3 dB power
change ISN'T what
you're
it is hard to go wrong and self expanitary.
I have other mods for repeater/ link working but I d
ont think it is needed here.
Regards
Bradley Glen ZS5WT
--- Steven Passmore [EMAIL PROTECTED] wrote:
I wouldn't mind if you keep it on the list. Sounds
like good information.
I looked through
J-poles are not antennas of a given impedance-try
placing the arrestor in line with a dc-grounded folded
dipole and there should be no difference seen on a
standard Vswr metre.
Brad
--- Benjamin Naber [EMAIL PROTECTED] wrote:
afternoon ya'll
Done a little bit of reading and playing
.
Have a look at the Tait wesite.
Regards
Bradley Glen ZS5WT
--- Jed Barton [EMAIL PROTECTED] wrote:
Hey guys,
I got a phone call last night from one of the clubs
and they want to get
a tait 800 repeater.
I guess they just got a ton of cash, and want to
have some fun.
Any opinions good, bad
are different jumpers and
more than one kind of controller board.
regards
Bradley Glen ZS5WT
--- tony_aurelio [EMAIL PROTECTED] wrote:
has anybody converted 2 gm300 to repeater mode
with-out d rick..a
noise squelch thing..i have seen one working..would
like to know how
its done
hardware required.
I do remember a model 66 which could basically do
voice and paging as a remote panel.
Regards
Bradley Glen ZS5WT
--- Randy Elliott [EMAIL PROTECTED] wrote:
Hi Gang
I have an interesting problem that has come to me. A
small Fire Dept. near
me call today and were wondering
Hi
My experience with many panels have found the ones we
standardised on was the ZETRON 38 series.
We did this with our 19 repeaters purely because of
less glitches and they too have a relay option for a
given tone eg: external link PTT or light to be
switched on etc-or an onite voice recorder
the PTT line until you can add a
simple CAPACITOR electrolitic -normalli\y on the input
to a switching opamp.
The second way is to allow the transmitter to ptt with
a tail-use the cos line to mute the ctcss tone in
and around the sub audible pot on the txco board.
Good luck
Regards
Bradley Glen
Hi
Reverse burst is ani-phasing of the pl for about
100ms.Only used on mechanical reed pl units as in the
old micors.
Regards
Brad ZS5WT
--- ian wells [EMAIL PROTECTED] wrote:
the rev burst wasn't enabled but i tried it enabled
and nothing
happened.thanks for the sugestion
Thank you
Ian
Hi
Normally most of the zetrons have a default of, any
dtmf key greater than 15 seconds will reset the basic
problems.You may try this.
REgards
Brad ZS5WT
--- John J. Riddell [EMAIL PROTECTED] wrote:
My suggestion would be to get a telephone line
controller that will answer
an incoming
Hi Kevin
I run a star uhf linked system all on uhf between
430-440 here in South Africa , both the repeaters
439/431 and link 434/433 .I have had success with this
but there are many factors influencing the end result
.
Regards
Brad ZS5WT
--- Kevin Custer [EMAIL PROTECTED] wrote:
Ken Arck
(including myself) would be able to scan Email
the ARRL project antenna for you.
cheers
skipp
--- In Repeater-Builder@yahoogroups.com, bradley
glen
[EMAIL PROTECTED] wrote:
Hi Skipp
Using coaxial-type and have tried both the coax
and
solid screen by way of solid copper sleeving
to state that there antenna
works well or better than antenna X or Y.
Of all the designs none have substantiated the design
with an analyser of any kind -all are going on only
VSWR readings.Good VSWR does not mean good antenna .
Kind regards
Bradley Glen ZS5WT
--- zip14225 [EMAIL PROTECTED] wrote
on
the web are : feed straight onto the first halfwave
element-others have a quarter wave section before
the
first half wave element.one feeding a high Z-other
one
feeding a low Z.???
I am using a sitemaster-Anritsu s331-c and not a
simple vswr meter.
Regards
Bradley Glen ZS5WT
the
first half wave element.one feeding a high Z-other one
feeding a low Z.???
I am using a sitemaster-Anritsu s331-c and not a
simple vswr meter.
Regards
Bradley Glen ZS5WT
__
Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo
is the recommended spacing between the uhf and
vhf to the mast to go on the 100 Ohm impedence area ?
Has antone done a antenna shootout between these
antennas and other stacked arrays ?
Regards
Bradley Glen ZS5WT
--- Tony King - W4ZT [EMAIL PROTECTED] wrote:
You may find this link helpful when looking
PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Would a close up pic of a DB304 work for your needs,
or I have the DB420
there as well.
Mathew
bradley glen [EMAIL PROTECTED] wrote:
Hi
I have been studying the db stacked array and the
bayed array seems to use unbalanced dipoles
Hi
I have been studying the db stacked array and the
bayed array seems to use unbalanced dipoles as the
radiators .I have tried to find a close up view of a
single dipole so I can confirm my ideas.
If anyone has some good tech info on these antennas I
would appreciate the info.
It would make
Antennas .
Kind regards
Bradley GlenZS5WT
--- Steve Grantham [EMAIL PROTECTED] wrote:
I think you will find that the feed point is 50-Ohms
when feeding one of these single unbalanced dipole
elements. The harness is for making the multiple
elements on the array look like one element
In th the process of making my tests on a dual
polaarisation antenna for my uhf repeater (one of
many).
I am persueing something that I should have done a
long time ago.I have had reasonable success with
opting for a site that needed 270deg coverage which
made what I have done within reason.
I
Been in the radio field for all my life and now GSM
engerneering.
This link is not only for the real stupid but
unfortunately it sounds like a radical type of
mentality.
My only concern is that for each of these types ,
there are thousands that want to follow for the lack
of knowledge (or IQ.
As audio is discussed over and over often I see there
is less and less content in the answers.
I have a question . I run several repeaters all
employing pre-de-emph as per standard to a star
network.
What is the major decision between going flat or
shaped audio? I would take it that running up
What balun setup do those antennas use?
Is there anywhere that one can download a technical
manual on these antennas?We used the ASP 2 and 4
stacks for many years on VHF and out preformed all our
competitors.
Brad
--- Mathew Quaife [EMAIL PROTECTED] wrote:
will see what happens this weekend.
Hi
Sounds like you need a VOX unit to tap audio into and
that will give you a COR with hangtime (vox delay)
etc.
There are circuits on the web.
A second way if you can use CTCSS which will be more
stable as in the quiet periods that a person does not
talk you may get dropout.
Use a CTCSS
Hi All
Some time back I did do that same-upside down
collinear-my theory was with the slight uptilt given
to general collieas I tried it upside down and it
worked very well.
Loss of main RF radiation in the horizon is in essance
the same as the majority of the radiation is from the
first
resorted to
sperate antennas-X200-N and only one RX cavity and all
has been working well for years this way.
Rings do have up to 4 dB loss- design dependant.
Regards
Bradley Glen ZS5WT
--- w4rfj [EMAIL PROTECTED] wrote:
Hi I am looking for information on Hybrid Ring
Duplexers... I have
of a repeater panel you may
want to look at a more simple approach such as NHRC
pic repeater controller for the very simple and
reliable approach.
Kind regards
Bradley Glen ZS5WT
--- Jim B. [EMAIL PROTECTED] wrote:
jfrohoff wrote:
Also add a commercial community tone board
with DCS
Hi
Just a reminder that one has to use a filter after the
circulator as the materials used are inherent 2nd
harmonic generators.A 2nd harmonic filter or cavity
will be placed to assist for a clean signal.
regards
Brad ZS5WT
--- Johnny [EMAIL PROTECTED] wrote:
I know what you are saying. I
Hi Steve
I do appologise that I have not gotten back to you-I
can not find it amoungst my files but my ex place of
work does have a copy so I will get it from them
perhaps tonight or tomorrow.
Regards
Bradley Glen ZS5WT
--- Steve S. Bosshard (NU5D) [EMAIL PROTECTED]
wrote:
Hi Glen, any luck
interfaceing .
Best of luck
I am still in the process of trying to find web space
to place all this on the web else I could explain on
the pages what I have done.
Bradley Glen ZS5WT NATURN UHF repeater owner
--- ve7fet [EMAIL PROTECTED] wrote:
Ok, I've looked high and low... and come up short
tk809.
To learn more about the TK-9s group, please visit
http://groups.yahoo.com/group/TK-9s
To start sending messages to members of this group,
simply
send email to
[EMAIL PROTECTED]
Bradley Glen ZS5WT
--- george vagner [EMAIL PROTECTED] wrote:
anyone know where I can pick off for dtmf decode
of filters will negate some
of your tones being used so careful implimentation
will do justice
Best of luck in your quest-I also have the tone
standards for all the different formats.
regards
Bradley Glen ZS5WT
--- mch [EMAIL PROTECTED] wrote:
Well, I do know Europe uses a lot of 5-tone
sure you will
get the idea.
Then one day I can call your node up on IRLP and page
your radio.
Regrads
Bradley Glen ZS5WT [EMAIL PROTECTED]
--- [EMAIL PROTECTED] wrote:
The radios I am trying to program with 5 tone are
the Kenwood TK809 and
TK349. Trying to see if they will talk 5 tone
to go for something really quick and
easy-use a ctcss decoder that you can wire the output
to break your ptt line-as mentioned you are vague on
what you require to acheive .
Rergards
Bradley Glen
--- kg4yti [EMAIL PROTECTED] wrote:
Looking for Good Ways to Turn on and off a Repeater
by remote
the results be known.
Good luck
Regards
Bradley Glen ZS5WT
--- Virden Clark Beckman [EMAIL PROTECTED] wrote:
I have seen cross polarized antennas used to receive
links around a
large city airport area, the theory is if the path
is not consistent
there is a larger capture area available
Hi
The chip is a CML chip and they are on the web , you
may need to fill out a short question or two then
download.
You may also use an older chip(obselete but used equip
will have) being the fx315 which is very easy to
impliment and is run by a 1 meg chrystal.binary method
of programming-very
Hi
I think that your gps may well be the ideal as I know
that our company's(my gsm calibration equipment)
Rubidium Standards are calibrated against the GPS.
The method is to take that 1 sec pulse and up count to
10Meg ref and compare that by the same method you are
currently using.
This is how the
Hi
I had an apprentice blow my one up and it also cost
-PLENTY.
I do know that HP often use a gold fast blow fuse
in-line to protect the input .You may want to have a
look first.Regards Brad Glen ZS5WT
--- Scott Zimmerman [EMAIL PROTECTED] wrote:
Thanks guys for all the suggestions. I will
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