seperate tx/rx either 2 aerials or a duplexer. When the rx receives a signal
it switches on the tx and feeds the rx audio into the tx and retransmits it
- Original Message -
From: antony antonyebu...@hotmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, May 02, 2010 9:48 PM
Eric,
The power supply on the RKR and GR series repeaters has a switch which
controls the action of the fan. It can either be thermally controlled or
run constantly.
Milt
N3LTQ
- Original Message -
From: Eric Lemmon wb6...@verizon.net
To: Repeater-Builder@yahoogroups.com
Sent:
What is the Moto part no. of the ps to which you refer?
lh
On 5/3/10, Milt men...@pa.net wrote:
Eric,
The power supply on the RKR and GR series repeaters has a switch which
controls the action of the fan. It can either be thermally controlled or
run constantly.
Milt
N3LTQ
-
Ok a little update on the AC buzz. After some preliminary investigation we
located two very noisy transformers on poles with in 1 1/2 miles of the site.
The site was disconnected and a clamp on one of the wire was replaced and the
wire attachments on our road side supply pole were check and
You want to get rid of any 9913 or LMR foil/shield cable in the system Can
be a huge duplex noise generator.
Chuck
WB2EDV
- Original Message -
From: kc0mlt kc0...@yahoo.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 03, 2010 10:15 AM
Subject: [Repeater-Builder] Re: AC buzz
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for sending IDs.
There appears to be no PL
Its all about the storage capacity. People have, in the past, abused the site
for GB of storage. Its probably why Yahoo disallowed that option. (Also makes
it dial-up friendly)
John Hymes
La Rue Communications
10 S. Aurora Street
Stockton, CA 95202
http://tinyurl.com/2dtngmn
- Original
I think the illegal porn was giving them headaches. They just banned
storing them on their web site.
Joe
On 5/3/2010 12:13 PM, La Rue Communications wrote:
Its all about the storage capacity. People have, in the past, abused
the site for GB of storage. Its probably why Yahoo disallowed
Funny thing is Joe - you're probably right! :-)
If you have any kind of computer Mac or PC, I have found VLC (found here
http://www.videolan.org/vlc/ ) to be one of the BEST freebie multimedia players
out there. It handles EVERYTHING imagineable mediawise and plays smoothly on
any platform.
On 5/3/2010 12:08 PM, N1BUG wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for sending
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for
sending IDs.
There appears to be
On 5/3/2010 1:08 PM, Jeff DePolo wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL encode immediately when a user unkeys, but I want the controller
to be able to hold the transmitter up (without PL tone) for
Jeff DePolo wrote:
Pin 701 on the board (base of Q704) is PL Inhibit - pull to ground to kill
the encoder.
Thanks Jeff,
I did notice P701 on the schematic. Any experience on whether a
transistor will pull it low enough or do I need something better?
Guess I'll try a transistor and see what
wd8chl wrote:
The usual method we've used is to pull it to ground when you don't want
tone with a transistor or a FET. You can remember though that, depending
on your link rx, letting the Micor encode reverse burst will close the
squelch quicker than just letting it coast. My experience is
You can try a bipolar, but you might have some residual leakage which will
show up as a low-amplitude distorted (clipped) waveform. I'm trying to
remember what option card(s) used that P701 to kill the PL encode so I could
look at the schematic to see what they're keying it with, but I can't
N1BUG wrote:
Squelch tails are *probably* not going to be much of an issue since
I plan to use AND squelch with PL and the infamous Micor carrier
squelch at the receive end of the link.
DUH! Not my best day...
Looks like I will end up killing squelch crashes with an audio delay
in any
I have a question for the group. What is reverse
burst? And when is it used? Motorola radios.
Leroy. J39AI.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
Behalf Of N1BUG
Sent: Monday, May 03, 2010 1:54 PM
To:
Hi,
I have read that one can put plain low cost PL259 connectors on FSJ1-50A Andrew
1/4 inch suplerflex using a UG-176 reducer.
Can the same be done with the Andrew LDF1-50 1/4 hardline?
The local business I usually use for building cables is only aware of the
possibility of doing this with
ok thanks very much. regards antony
Hi,
I have read that one can put plain low cost PL259 connectors
on FSJ1-50A Andrew 1/4 inch suplerflex using a UG-176 reducer.
Yep.
Can the same be done with the Andrew LDF1-50 1/4 hardline?
Nope. The OD of the shield is too big to fit into a UG-176 reducer. FSJ1
is exactly a
Would this still allow the reverse-burst to pass through, or just
abruptly cut off?
On 05/03/2010 12:14 PM, wd8chl wrote:
On 5/3/2010 1:08 PM, Jeff DePolo wrote:
I'm guessing I am not the first to want to do this...
I want to use a UHF Micor for a link. I want to be able to stop the
PL
Leroy A. M. Baptiste wrote:
I have a question for the group. What is reverse
burst? And when is it used? Motorola radios.
Leroy,
I'm sure others can explain it better, but...
Reverse burst was / is used by Motorola and others to eliminate
squelch crashes at the receiving end of a comm
Tony KT9AC wrote:
Would this still allow the reverse-burst to pass through, or just
abruptly cut off?
Pin 701 on the board (base of Q704) is PL Inhibit - pull to ground
to kill
the encoder.
Grounding pin 701 would kill the tone entirely, including reverse
burst. Which is what I asked
Hi Paul, thanks, I think that answers my question
adequately. In other words if I am using an open
repeater without PL tones, I do not need reverse
burst?
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
Behalf Of N1BUG
Sent: Monday,
That's right Leroy, reverse burst was invented to overcome the
problem of tone decoders being relatively slow to realize the tone
went away and thus producing a somewhat long burst of noise before
muting the speaker.
Paul
Leroy A. M. Baptiste wrote:
Hi Paul, thanks, I think that
Thanks again Paul, I really do appreciate it.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On
Behalf Of N1BUG
Sent: Monday, May 03, 2010 2:50 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Micor PL encoder
Joe
Thanks a bunch! Yes I believe I saw one of
these some time in the past. The metal is
covered with some insulating material. The big
question! Where can I get one?
Gran K6RIF
At 09:24 AM 5/3/2010, you wrote:
I think this is what you are looking for.
Joe
On 5/2/2010
Trylon, through Tessco, Hutton, et al.
--- Jeff WN3A
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gran Clark
Sent: Monday, May 03, 2010 2:56 PM
To:
You say duplex noise. Meaning desense, or something else??? The 440 machine
that is there is having issues with desense even after fine tuning the
duplexer.
Wade
--- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote:
You want to get rid of any 9913 or LMR foil/shield cable
My original plan was to let the transmitter PTT control the Micor
encoder board as usual, but supply a valid user signal present
logic input to abruptly stop the tone when there is no user signal
present... thus allowing the controller to keep the transmitter
keyed for IDs without PL tone.
I don't have a schematic in front of me, but if your plan is to key voltage
to the board on/off, this won't work ideally because the vibrasender reed
takes a little time to come up to speed.
Since the repeater transmitter is still keyed long after a user unkeys, just
muting the encoder seems
Jeff,
Good explanation, especially the fluttery/noisy user signal.
Would this general theory apply for factory Micor DPL boards as well?
I might run my repeater using DPL since that is what I have available
and its working fine.
Tony
On 05/03/2010 02:36 PM, Jeff DePolo wrote:
I don't
The original GR1225 power supply was a linear Astron SL-14M good for 7A
continuous and 14A @ 20% duty cycle. It had 2 molex connectors on the back,
one for the high current DC and the other, a 6 pin, for the fan.
The current product is HPN9033A a Duracomm RP-15 switcher with a high current
Thanks Jeff!
Having someone to kick this around with is helping.
Very good point about the ratty user signal. I hadn't thought of that.
You are exactly right. I need to make sure the controller is set up
to always keep the transmitter up for a short time after loss of
user signal on the
Try the reducer meant for RG-8X.
On Mon, May 3, 2010 at 11:21 AM, Jeff DePolo j...@broadsci.com wrote:
Hi,
I have read that one can put plain low cost PL259 connectors
on FSJ1-50A Andrew 1/4 inch suplerflex using a UG-176 reducer.
Yep.
Can the same be done with the Andrew LDF1-50 1/4
There was an earlier post concerning grounding a pin on the backplane which
instantly disables the PL tone on the transmitter. I've got a VHF unified
chassis MICOR which is controlled by an SCOM 7K controller. I used one of
the digital outputs of the controller and tied it directly to the PL
At 01:56 PM 5/3/2010, Don Kupferschmidt wrote:
There was an earlier post concerning grounding a pin on the backplane which
instantly disables the PL tone on the transmitter. I've got a VHF unified
chassis MICOR which is controlled by an SCOM 7K controller. I used one of
the digital outputs of
A UG-176 *is* a reducer for RG-8X.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX
Sent: Monday, May 03, 2010 4:39 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] LDF1-50 with PL259
shameless plug, right Ken?
Don, KD9PT
- Original Message -
From: Ken Arck
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 03, 2010 4:03 PM
Subject: Re: [Repeater-Builder] IDEA? Re: Micor PL encoder modification
(TLN5731A)
At 01:56 PM 5/3/2010, Don
At 02:16 PM 5/3/2010, Don Kupferschmidt wrote:
shameless plug, right Ken?
---Who, me? g
--
President and CTO - Arcom Communications
Makers of repeater controllers and accessories.
http://www.arcomcontrollers.com/
Ahh, right you are. Thats one of those things that you never refere to
by the proper name around here.
How about doing it without a reducer at all then?
According to this the dielectric size of RG-8 is 0.285
and LDF-1 is 0.29
Cant find the dimensions of the shield of RG-8 but it brings the size
How about doing it without a reducer at all then?
According to this the dielectric size of RG-8 is 0.285
and LDF-1 is 0.29
Cant find the dimensions of the shield of RG-8 but it brings the size
of LDF-1 to 0.30 which should fit nicely inside a PL-259.
Just calipered (is that a word?) a
There was an earlier post concerning grounding a pin on the backplane which
instantly disables the PL tone on the transmitter. I've got a VHF unified
chassis MICOR which is controlled by an SCOM 7K controller. I used one of
the digital outputs of the controller and tied it directly to the PL
Yes, essentially desense. The cable can generate intermodulation products.
The manufacturer's admit that these cables are not low-PIM, yet hams
continue to use them in duplex service. Many commercial sites will not allow
it on-site for any purpose. And this topic comes up here on
Maybe a wrap or two of some copper flashing to shim?
Chuck
WB2EDV
- Original Message -
From: Jeff DePolo j...@broadsci.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 03, 2010 6:01 PM
Subject: RE: [Repeater-Builder] LDF1-50 with PL259 UG-176 ?
How about doing it without
Hi,
Can anyone please point me in the direction for the schematic for a 625w, 24v
smps with battery revert for a quantar??
Thanks heaps
Greg
If this helps, the spec for
LDF1-50 diameter over jacket = 0.345
FSJ1-50A diameter over jacket = 0.290
So assuming the jackets are the same thickness, then LDF1-50 is .055 larger in
diameter than FSJ1-50A.
Howard
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote:
How
Thanks Don.
Yep, I was over-thinking the problem! Links are new to me. Somehow I
was forgetting I have control over keeping the link transmitter up
after I drop the PL tone, so I can eliminate squelch crashes at the
receive end of the link that way. All I need to do is ground that
trusty pin
I found some more specs:
fsj1-50a
diameter over dielectric 0.190
inner conductor OD 0.0750
Outer Conductor OD 0.250
fsj2-50
diameter over dielectric 0.280
inner conductor OD 0.1100
Outer Conductor OD 0.380
fsj4-50b
diameter over dielectric 0.350
inner conductor OD 0.1400
Outer
Milt,
I just looked inside both a GR1225 and an RKR1225 power supply, and found no
such switch. Both power supplies are the standard, original equipment power
supplies made by Duracomm and bearing Motorola part number HPN9033A. Both
units have a hardwired thermal sensor that is intended to be
Yes, I've done it.
On Mon, May 3, 2010 at 7:25 PM, Howard Z howar...@yahoo.com wrote:
I found some more specs:
fsj1-50a
diameter over dielectric 0.190
inner conductor OD 0.0750
Outer Conductor OD 0.250
fsj2-50
diameter over dielectric 0.280
inner conductor OD 0.1100
Outer Conductor OD
Oops! I just found that switch on both HPN9033A power supplies- hidden
beneath some nearly-invisible black tape that probably was affixed to keep
it from being nudged into the continuous position. I shall now return to
the kitchen for a well-earned serving of crow!
73, Eric Lemmon WB6FLY
Oops! I just found that switch on both HPN9033A power supplies- hidden
beneath some nearly-invisible black tape that probably was affixed to keep
it from being nudged into the continuous position. I shall now return to
the kitchen for a well-earned serving of crow!
73, Eric Lemmon WB6FLY
Paul,
Here is my two cents worth.
I am not sure what you are using for your other equipment in your system, but
we use Micor repeaters and have a combination of Motorola Maxtrac, GE MVS, and
Johnson Challenger link radios. We always enable PL encode and decode with
reverse burst on the
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