[Repeater-Builder] RE: Free for the shipping

2010-05-15 Thread Ralph Hogan
Bill,
I play a lot with the FMU 250K's. Would like to get a hold of them if no one
has spoken up.
Thanks,
Ralph W4XE

Ralph Hogan 
2508 Quail Ridge Lane
Huntsville, AL. 35803

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of bil.isom
Sent: Wednesday, May 12, 2010 7:22 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Free for the shipping

I don't know if there is any interest, but I have several operational Uniden
FMU 250K UHF mobiles that are free to anyone who would like them. USPS is
about $11 for the med flat rate box.  If you let me know before 5 PM
Thursday, I can bring a few to Dayton.

Reply direct, please

Thanks,

Bill N4XIR







Yahoo! Groups Links





RE: [Repeater-Builder] Mastr II mods and parts

2010-01-04 Thread Ralph Hogan

In the link to the unit he bought off ebay, in the photo the GE Mastr II was
the IDA equipped version. 
Doesn't have a card rack to plug the PSE into. Of course you could wire it
in, but not as convenient as having the original style card rack where you
just plug it in.

Ralph W4XE

---

Duplexer? Nope, didn't say anything about a duplexer. You mentioned 
using the PSE508-2 controller (which does one tone), and I suggested 
using the -3 version instead to get the 4 tones.




RE: [Repeater-Builder] Has anyone measured out-of-band rejection for a duplexer?

2009-11-23 Thread Ralph Hogan
Tony,

Our club ran some wideband plots years ago with a spectrum analyzer and
tracking generator on a VHF db-4001 BP cavity and a VHF WP-641 BPBR
duplexer. We were getting killed by the site's local TV station transmitter.
Very discouraging results if you expect a BPBR duplexer to provide rejection
beyond the tuned target frequencies. The band-pass db-4001 had a repeating
pattern up the spectrum letting in several pass peaks, so you have to be
careful there as well.

I have a PDF of the test results if anyone is interested.

We've had success adding extra BP cavities and a DCI filter on the receiver
for high RF ambient sites.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tony KT9AC
Sent: Monday, November 23, 2009 12:36 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Has anyone measured out-of-band rejection for a
duplexer?

Hi Everyone,
 Without the benefit of a spectrum analyzer, I would like to find out 
how much rejection of out-of-band signals can be expected from a typical 
UHF duplexer. Have a MSF5000 on 452 that works fine with the T4084 
duplexers (1500 style), but have a lot of VHF data and FM broadcast hash 
that is trying to make it in (the 45kW FM is about 400 yards away and 
the VHF data is almost 1/3 harmonic).
 Looking at the documentation, I can guess its about 20db per cavity (or 
can), but the graphs don't extend very far. So for a regular four-can 
duplexer I might be providing 40db of protection. I want to increase 
this, and plan on adding one or two more cans on the receive side, and a 
Sinclair preselector in-between the latter two to make up for the 
increased insertion loss.

 Just wondering if anyone ever tried/measured this, or had ideas about 
filtering out FM broadcast. Eric mentioned using a single 7" Sinclair 
cavity, but I'd like to see if I can use some spare 1500 bandpass/reject 
cavities first. I don't think a 1/4-wave stub will work with that much 
field strength prying open the MSF's front-end.

Thanks,
Tony






Yahoo! Groups Links





RE: [Repeater-Builder] Motorola Suitcase Repeater data need

2009-10-18 Thread Ralph Hogan
The original M suitcase repeaters were MX based. The original standard MX
was crystal controlled. Later MX-S radios were synthesized via a internal
prom/eeprom. Specialized gear to reprogram those, but a few comm shops out
there on the web that can do them. For the crystal UHF MX it works off one
crystal for the frequency and another is the offset split. In the HT version
there usually was a 5 MHz offset and a simplex offset crystal. All three are
housed in 'channel elements'. If you are careful you can replace the crystal
yourself. In the repeater there will be two MX's radios, one only populated
with modules for the receiver and the other for the transmitter. So you'll
have two xtals to get.

I don't have a manual in front of me, but be warned that the 'modules' which
make up the receiver and transmitter were range dependent. Usually the radio
will work if you bring it down to the ham band, but it might not meet specs
with the wrong modules installed.

Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of George C
Sent: Sunday, October 18, 2009 1:17 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Motorola Suitcase Repeater data need

Hi everyone.

I have a Motorola Suitcase P44SYS1180BT. Looks like it was modified to -3180
(PL), clean mod. Can anyone confirm that this is based on a pair of MX320-S
radios? I haven't had time to do more than a checkout and visual. No
duplexer, it was originally setup on an impossible split for mobile
duplexers (1.5 MHz). Battery never installed. Second thing I need to
confirm. I have heard two versions of battery info. One is 8 Volt, one is 12
Volt. 12 makes more sense to me, but don't want to experiment. 

Lastly, I have the 450 MX pdf manual from the site here, but need original
manual or a scan. I'm not even going to call /\/\ about it, I'm sure it
isn't available. According to a posting on Batboard the manuals are:
# 68-81021C90-A
# 68-81021C95-O

Next I'll need to reprogram, that's for another day. Its in ham band and
works fine for now...

GeorgeC
W2DB
Austin, TX








Yahoo! Groups Links





[Repeater-Builder] Quintron Glenayre PM250C RF Power Monitor Panel w/Alarm

2009-03-21 Thread Ralph Hogan
I picked up a used Quintron PM250C/100C 500W FWD/50W ref rack mount power
meter. 

Has the additional FWD/REF alarm circuitry. 

 

The RF Power sensor is a common PM2 Telewave. I'd bet the whole thing was
made by Telewave for Quintron.

I tested the RF meter portion and that works fine. 

 

I'd like to figure out the hookup of the 10 pin terminal strip on the back
to use the alarm function as an input to my repeater controller.

It requires an external voltage to power up a couple of  78xx VRegs to run
an opamp and a few TTL gates plus two alarm relays.

 

Does anyone have a manual to save me some time before I reverse engineering
the alarm panel?

 

Thanks,

Ralph W4XE

 

 



RE: [Repeater-Builder] Got some noise from a fan in the system

2009-02-19 Thread Ralph Hogan
Having the DC fan get into the audio is a common problem for DC fans. It can
be eliminated with filtering but usually an easy fix is to run the fan from
another DC source, like a wall wort.

Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Dakota Summerhawk
Sent: Thursday, February 19, 2009 10:02 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Got some noise from a fan in the system

Morning,
I have a couple of M-10 radios run together with a 12VDC fan keeping 
them cool in the cabinet. However the power block has them all run into 
the same line fed by the power supply. You can hear the noise of the 
fan when you key the repeater. Would a filter help this on the positive 
line of the fan? Or maybe a coil to filter the noise? I am at a loss as 
to what might keep the system cool but also eliminate the noise of the 
fan as well.

Thanks for the help in advance.
Peter Summerhawk







Yahoo! Groups Links





RE: [Repeater-Builder] Cable velocity

2009-02-16 Thread Ralph Hogan
If you have access to an MFJ antenna anal like the 259 series, in the manual
it shows you how to determine the VF with it given a known length of cable
to test. Don't know how accurate the measurement will be, but should get you
close.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of mike
Sent: Monday, February 16, 2009 8:17 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Cable velocity


I have been searching for the velocity factor for E86650 cable. This 
was the stamp on the cable. I think it is simular to RG-59 but want to 
make sure. I need to build a phasing harness and wanted to use this 
cable and of course the velocity factor is an important in determining 
the length.
Thanks for any help
Mike







Yahoo! Groups Links





RE: [Repeater-Builder] Re: MSF-5000 PL encode deviation

2008-12-12 Thread Ralph Hogan
Thanks, we will definitely go back and look at the mod comp.
Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of nj902
Sent: Friday, December 12, 2008 3:16 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: MSF-5000 PL encode deviation

The original factory design specification for the MSF5000 PL deviation 
is 800 Hz.  That is just slightly greater than the 750 Hz. mid point 
in the acceptable range of 500 Hz to 1000 Hz as given in TIA-603.

One issue that can cause the PL level to be incorrect is failure to 
properly perform the modulation compensation alignment.  This often 
gets overlooked and is required when moving the station to a 
considerably different frequency than the one it was operating on when 
the initial alignment was performed.

--

--- In Repeater-Builder@yahoogroups.com, "Ralph Hogan"  
wrote:

"... Have an MSF-5000 repeater we're trying to get going on VHF. ... 
Have noticed the PL encode deviation is a little high at about 900 
Hz. ..."






Yahoo! Groups Links





RE: [Repeater-Builder] MSF-5000 PL encode deviation

2008-12-12 Thread Ralph Hogan
Guys,
Thanks for the comments. Hopefully I'll get some more time to work with it
over the holiday and get it up on site. A friend has another MSF-5000 with
the same high 900 Hz PL deviation, he's going to look at a resistor change
or pot addition experiment.
Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Bob M.
Sent: Thursday, December 11, 2008 5:03 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] MSF-5000 PL encode deviation

As others have said, the PL/DPL deviation is NOT separately adjustable. It's
a fixed percentage of the total deviation. It is very clean however, so even
though it might measure rather high, it'll be quite inaudible. You'd have to
add a resistor somewhere to lower just the PL level.

Make sure you measure and set the deviation with the PL turned on. Your
total deviation should be set for 4.5 to 5.0 kHz; it will be less without
PL.

I haven't seen a spec on the PL/DPL deviation in any MSF manual either.

Bob M.



[Repeater-Builder] MSF-5000 PL encode deviation

2008-12-10 Thread Ralph Hogan
Gang,
New to MSF-5000's. Great piece of hardware. But more used to working with GE
Mastr II's. Have an MSF-5000 repeater we're trying to get going on VHF. Have
experimented with both the on-board controller stand alone as well as off
board CAT. Several ee-pots to adjust in the software setting output audio
levels, but none specific to just PL encode level. We got it adjusted for 5
KHz output deviation, but noticed the PL encode deviation is a little high
at about 900 Hz. I usually like to see around 600 to 750 Hz. I couldn't find
in the manuals anywhere what Moto spec'd PL deviation at for the MSF-5000.
Looks like the PL level is a fixed percentage without an independent output
level adjust. Probably something we are doing wrong in setting levels, but
wanted to get some feedback from the group.
Thanks in advance!
Ralph W4XE




RE: [Repeater-Builder] More about using the Motorola RICK

2008-10-15 Thread Ralph Hogan
For my basic RICK, I used a BASIC STAMP to CWID and give courtesy tone beep.
It is very small and all fits into the RICK box. I've heard of others using
the com spec ID-8.
Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
Sent: Wednesday, October 15, 2008 4:58 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] More about using the Motorola RICK


> The RICK has no IDer function so it's not that 
> useful in ham radio applications.

Talking about the basic rick... 
If you must have the ID'er function... an ID O'matic in kit 
form via Ebay does the trick pretty darn well. 

As you progress up through the rick model numbers you run 
into other similar rick style products that have the ID'er, 
Multi-CTCSS/DCS capacity and telephone interconnect (auto-
patch). 

Basic RICK Unit
Motorola i20 aka I20 aka i20r rick 
Motorola i50 aka I50 aka i50r rick 
Made by Zetron Motorola ZR series of rick units (at least 2 that
I know about). 

Some are setup with jumpers and some of the more serious 
versions programmed with software. 

The above doesn't even talk about or consider and not related to 
the the CPI and MARTI interconnects (a lesson in punch the clown 
face frustration). So now you have enough information to really 
confuse yourself. 

cheers, 
s. 






Yahoo! Groups Links





RE: [Repeater-Builder] cos for delta radios

2008-10-13 Thread Ralph Hogan
Wayne,

A few questions to to ask first. Have you programmed up the radios yet or
are you testing before reprogramming? Advise to test on commercial freq
before programming to ham. Which model of Delta is this: the Delta-S or
Delta-SX synthesized model?
Do you have speaker audio wired up and working? Did you add a squelch pot if
one isn't already installed
in the radio? There are a number of sites showing how to hook up the radio
without a control head. Are you using one of those websites as a guide? Most
are slanted towards packet use which is slightly different than voice use
(like the addition of a sql pot). You have to make sure you have all the
power and grounds hooked up to the proper pins. Did you get the transmitter
to work, audio & PTT? It's always easier to test it out initially with a
head to start with. I'd highly recommend you try to find one somewhere,
perhaps ebay if you can.

There is another repeater group here in town, they run an RC-210 with two
deltas, so your goal will work.

Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of wayne.mclean
Sent: Monday, October 13, 2008 4:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] cos for delta radios

  I have a RC 210 controller and want to hook up two delta radios but 
I'm having a hard time finding the cos control pin.  The schematic 
shows it is pin 12 but checking with the osilloscope there is little 
or no voltage change, is there something else I'm not changing to make 
this work. I have no control heads I'm just doing this from the radios 
themselves.
Any help would be very much appreciated

Thanks  Wayne  VE3WWM







Yahoo! Groups Links





RE: [Repeater-Builder] Desense has me pulling my hair out! (Was DB4060 Duplexer Cables

2008-10-07 Thread Ralph Hogan

While we are on the subject of the DB4060/62, I've got a couple of dead cans
with a bad tuning cap.
Does anyone have a source I can call to buy some of the Johanson 5602 tuning
caps? Some of the Johanson distributors don't stock it and require a big min
order. I've looked at Nebraska Surplus and they have some that might work,
but I'd like to find the exact replacement if possible.

Thanks,
Ralph W4XE




RE: [Repeater-Builder] Emergency Power

2008-07-30 Thread Ralph Hogan
What power output level is the repeater station? The usual 110W? The 110W
amp doesn't play well at lower power outputs. It tends to spur and the
efficiency isn't great.

I'd first thought about putting a relay in the PA to twiddle with the main
power output pot setting. I DO NOT like modifying the stock gear so that
idea was immediately thrown out. 

I thought about using a couple of small relays to insert a 50 ohm attenuator
in-line with the exciter to PA connection to reduce drive level which would
reduce output level. The relays could be run off a wall-wort for the power
fail switch over. This was somewhat attractive with the RCA connectors from
the exciter to PA input. They are readily accessible and the scheme is
reversible to stock.

Before anyone screams, I realize both of those solutions would lead to the
problem stated above. 

You could use two antenna relays to bypass the PA altogether and run 250 mW
barefoot with the exciter. Would be very low output, but would last a very
long time on batteries. For slightly higher power with the two relays you
could insert a much smaller output rated PA (perhaps a GE M II 40W PA idled
down) after the exciter. You probably want make sure you don't switch out a
PA to no load while it's outputting power. Perhaps wait until a PTT off time
frame. Any decent controller with a macro could accomplish that.

As a side note, we removed our continuous duty 110W PA for servicing one
time and substituted a 40W intermittent PA idled down to 20W. I don't think
anyone on the repeater even noticed.

Another option would be to utilize a secondary lower power transmitter (GE
Phoenix?). Switch out the GE M II tx audio/ptt from the controller to the
alternate TX and use one antenna relay to switch the RF over at the
duplexer. Again taking care not to remove a 50 ohm load from an active
transmitter.

These may not be optimal, but I'd also like to hear of other suggestions.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of drwoolweaver
Sent: Tuesday, July 29, 2008 9:17 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Emergency Power

Does anyone have a circuit to the reduce the power output of a VHF
GE MASTR II repeater station when primary power is lost?  I searched the
messages and found some comments, but no circuit.  Recommendations?
David





RE: [Repeater-Builder] Mastr II station cards.

2008-03-23 Thread Ralph Hogan
These two cards plus the 10VDC regulator card are all that are needed to
make a GE Mastr II station into a repeater. They plug into the card rack
above the RF fold down deck. The repeater audio card processes the receiver
audio (de-emphasis) and mutes on no signal. It looks like there is some sort
of decoder plugged into it. Perhaps someone else can ID that part of it.
There is normally an optional PL High pass filter that plugs into it to
strip user sub-audible PL tones. The repeater control card keys the
transmitter upon reception of a rx signal and does a hang timer. The
enable/disable switch turns the repeat function on and off. However the
control card has no CWID provision. 

Did the front of that say MARC V, it is hard to read? That would make it a
piece of their early 800 trunk system.

Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of NORM KNAPP
Sent: Sunday, March 23, 2008 7:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Mastr II station cards.

Can someone tell me what these cards are for?
TNX es 73
N5NPO
Norman Knapp





Yahoo! Groups Links






RE: [Repeater-Builder] mastr II repeater tone (CG) board.

2008-03-04 Thread Ralph Hogan
Norm ,

 

I checked the 10VDC regulator card manual tonight. The jumper I was
remembering on that card was only for the encode side of pl. Basically
selecting the delayed PTT option for reverse burst. If you don't have a GE
PL encode deck you won't have to worry about that. LBI-30704 covers the 10
VDC regulator card.

 

Don's right I'd forgotten about the H41-H42 and H68-69 option jumpers on the
system board. They definitely are for the decode side.

LBI-31899 describes them.

 

Norm I can send you some pages out of the digital channel guard deck manual
if you need them. There are some options on it for encode or decode or half
duplex for both.

 

Ralph W4XE

 

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of de W5DK
Sent: Tuesday, March 04, 2008 12:14 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] mastr II repeater tone (CG) board.

 

Norman,

Ralph's info is on but the only jumpers to worry about will be on the system
board, not on the 10 volt card I'm pretty sure. There's one just to the
right of where you plugged the long decoder in that has be cut open.

 

Once working you will notice the speaker audio will go away without a valid
encoded signal. Ignore the controller till you get the speaker activating
with/without tone. Depending on where your controller COS is wired into the
station, the new decoder still may not control/effect the repeater
controller. The controller will need to be connected to the RUS circuit, not
the CAS circuit.

 

Sorry, did a quick search and couldn't find an LBI to guide you too. My book
are at home.

 

73 Don W5DK

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, March 04, 2008 9:36 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] mastr II repeater tone (CG) board.

 

Norm,

 

There are some jumpers on the 10VDC regulator card that need to be set for
CSQ or PL (Channel guard) mode. I disremember the settings, but they are in
the manual and documented elsewhere on the web.

 

There should be an lbi document on the repeater-builders website for the PL
board to describe the jumpers. Also one for the 10 VDC card. 

 

Note, the stock GE PL deck will only encode or decode, but not full duplex
both. 

 

In the M II station, the PL board next to the receiver mounted on the system
board is usually for decode only. There is an open space next to the exciter
for an encode only pl deck. You may not have that installed. They are a
little harder to get ahold of. Another recent thread discussed the Comspec
TS64M2 ? that is designed to drop into a GE in place of the regular PL deck.
It does both encode and decode. You'll just have to run the encode audio
over to the exciter connector. Otherwise you can mount an SS-32 or
equivalent pl encoder in the exciter section for encode capabilities.

 

Ralph W4XE

 

 

-- Original message -- 
From: "NORM KNAPP" <[EMAIL PROTECTED]> 

> HELP! 
> I got a MASTR II repeater... Works great, except I want to add a tone
board. 
> I have a programmable (dip switch) factory board that installs on the
system 
> board. I plugged it in and it made no difference. I looked in the manual
and it 
> says "for moble, clip jumpers X, Y, and Z. For station installation, see
sation 
> manual." I have what I thought was a station manual, but I got no
instructions 
> in there (that I can find) telling me what jumpers to cut or install... 
> Anyone got any ideas? 
> Thanks es 73 de N5NPO 
> Norman Knapp 

 

 

<>

RE: [Repeater-Builder] IFR FM/AM 1200S

2008-02-15 Thread Ralph Hogan
Cort,
Somewhere on the web I read that the difference between the non-tracking
versus the tracking 1200S was just a firmware change. The hardware is
already there. Someone else may comment on this that knows more, but if that
is the case, you just need a copy of the eproms in the full up option-12
1200. A friend has the same non-tracking 1200. It would be interesting to
add the tracking to his setup if it were that easy.
Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Cort Buffington
Sent: Friday, February 15, 2008 8:01 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] IFR FM/AM 1200S

Folks,

I realize this is an insane long shot. I'm not a Ham Radio guy, not a  
commercial shop. I've finally gotten an IFR FM/AM 1200S. It didn't  
have option 12 (Tracking Generator). I'm looking for parts from junked  
1200s to add option 12. IFR/Aeroflex wants WAY more than I can afford  
for this. If anyone has junked or spare 1200S option 12 parts for sale  
or trade, I'd love to talk to you.

73 DE N0MJS

--
Cort Buffington
H: +1-785-838-3034
M: +1-785-865-7206








 
Yahoo! Groups Links






RE: [Repeater-Builder] Re: MCC RC-100 and Remote Base PTT

2008-01-15 Thread Ralph Hogan
Mike,
Make sure your manual is for the rev software that Ron shipped to you. There
are differences in what he's shipped over time. I have two manual copies for
different revisions of the RC-100 here and there are changes in the remote
base command area. What is the rev of your controller? Ron does frequent
this list. Maybe he'll chime in. There used to be an MCC-Controllers group
on Yahoo, but I don't know if it is still there.
If you've programmed say a 6, you must enter #6 on the dtmf to enable the tx
(actually it toggles between Tx on and off). You are using the # prefix?
Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of raritansailor
Sent: Tuesday, January 15, 2008 12:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: MCC RC-100 and Remote Base PTT

Let me further clarify the previous. When I turn Remote Base Xmt ON, 
I'm expecting the "Remote Base Tail Beep" to go from 500Hz (Xmt OFF) 
to 1Khz (Xmt on). That never happens, thus I believe that the xmt is 
never coming on, so the PTT transister never gets the drive from the 
CPU. 

--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
>
> Did you check the logic level driving the PTT transistor ?
> Does it change ?
> 
> 
>  -- Original message --
> From: "raritansailor" <[EMAIL PROTECTED]>
> > Hi Folks,
> > 
> > I have an MCC RC-100 that I've been using for the MADXRA 147.345
> > Repeater, here on the Panhandle of WV. Has been working just fine.
> > 
> > We decided to add a remote base in order to link this repeater 
into a 
> > regional network. Everything hooked up fine, everything works 
fine, 
> > EXCEPT I can't seem to get Remote Base Xmit to turn on! 
Therefore 
> > no PTT to the link Xcvr.
> > 
> > I've programmed the 4066 * code 25 times and whenever I use it, 
no xmit 
> > on! So as it stands I can turn remote base ON, get the 500Hz 
remote 
> > base tone, the Link Xcvr audio is being passed from the network 
to the 
> > 147.345 system, but you can't connect from the 147.345 repeater 
to the 
> > network cuz the "Xmit on", won't turn on, and the Link Xcvr gets 
no PTT.
> > 
> > Any ideas folks? I DO program the 4066 * code with 0X where X is 
a "not 
> > restricted" single digit. I've tried several different digits. 
(as a 
> > side note ny * codes for "force ID", and "Remote base OFF" work 
just 
> > fine!). When I program the 4066 * code I DO get the RR in 
response.
> > 
> > What am I missing? Anyone able to lend a suggestion?
> > 
> > Thanks!
> > 
> > Mike, N3EAQ
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> >
>






 
Yahoo! Groups Links






RE: [Repeater-Builder] Which 440 Synthesized radio to use with IRLP?

2007-12-15 Thread Ralph Hogan
I also use a phoenix-SX UHF on an echolink setup. I like the phoenix because
it has all the necessary signals on the rear connector and they are
inexpensive. You don't have to tap inside the radio. The Moto Maxtrac &
GM300 are also handy if you get the 16 pin rear accessory connector variant.
However the moto will set you back significantly more $$. With any
commercial radio, you'll need programming software and hardware, which could
set you back ~ $50.00 unless you can find a locally equipped ham.

Ralph W4XE




-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Saturday, December 15, 2007 10:09 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Which 440 Synthesized radio to use with
IRLP?

> Building a quick IRLP simplex interface and what are the current 
> synthesized 440 radios you guys are using?
> 
> Thanks,
> 
> Rick

Rick I am using a GE Pheonix on my VHF system and it works great and 
they are cheap. I have the power turned down to about 15 watts going into 
an 11 element yagi. I need to make a better mount for the yagi. Every time 
we get strong winds it moves the direction it is pointing in, then I get w
eak 
and scratchy signal. I paid $25 for the radio.

Rod kc7vqr




 
Yahoo! Groups Links






RE: [Repeater-Builder] GE MVP repeater on 6 meters

2007-12-02 Thread Ralph Hogan
Joe,
I haven't done the MVP, but have converted the Exec II for a 1 MHz split 6
mtr rptr. 
Basically the same radio in trunk mount version with a bigger PA.
Ralph W4XE

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Joe
Sent: Sunday, December 02, 2007 8:44 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] GE MVP repeater on 6 meters

Has anyone successfully got a GE MVP to repeat on 6 meters, 1Mhz split?  
I know that they work well on 440Mhz but never heard of one used on 6 
meters.

73, Joe, K1ike




 
Yahoo! Groups Links






RE: [Repeater-Builder] NWS SAME Decoder?

2007-06-04 Thread Ralph Hogan
Hi Mike,

As far as I know, morris softronics has nothing to do with midland radios,
'midlands' is just part of their domain name.

Their SAME decoder board allows insertion of any radios audio source, in my
case a GE M2 voter rx on 162.4. I know its a little over kill, but hey the
rx works good in a high IM site :) It has a couple of control bits to and
from the card for wx alert status and on/off over-ride control of the wx
audio. Those tie into your repeater controller of choice. Its serially
rs-232 programmed for the SAME codes of interest.

73's Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Mike Morris WA6ILQ
Sent: Monday, June 04, 2007 6:30 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] NWS SAME Decoder?


I have no idea how the Softronics units work but
avoid the Midland branded SAME receivers in ham
radio repeater use.

The midlands have a design flaw that the Radio Shack
receivers don't have.  The programmed SAME code
opens the squelch, but the midlands then start a timer
(built into the firmware), and shut the audio off when the
timer expires, even if it's in the middle of a weather alert
announcement. The same timer keeps the audio on for
no good purpose after an RWT (required weekly test).

On the other hand the Radio Shack receivers actually
listen for the SAME turnoff code and act properly on it...
they actually unmute the audio for the message, and
remute it when it's done... what a concept.

I was told that one guy modified the RS receiver to insert
audio from an external receiver into its decoder section,
but I've not tracked him down.
If I can, I'll get enough info for an article for the RS page
at www.repeater-builder.com

Mike WA6ILQ

At 05:49 AM 06/04/07, you wrote:
>These may still be available:
>http://storefront.midlands.net/msftrncs/products/nwsamd/default.htm
>They work well. There are a couple in use in this area.
>
>Ralph W4XE
>
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] Behalf Of crackedofn0de
>Sent: Monday, June 04, 2007 1:29 AM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] NWS SAME Decoder?
>
>
>I'm looking for a SAME decoder to interface to my repeater controller
>via TTL outputs. It'll be taking audio from a UHF receiver tuned to a
>link frequency, so a product with a built-in VHF receiver is not what
>I'm looking for. The CAT WD-100 would do (and then some), but is there
>another similar product out there right now?
>
>James K7ICU
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>






Yahoo! Groups Links







RE: [Repeater-Builder] NWS SAME Decoder?

2007-06-04 Thread Ralph Hogan
These may still be available:
http://storefront.midlands.net/msftrncs/products/nwsamd/default.htm
They work well. There are a couple in use in this area.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of crackedofn0de
Sent: Monday, June 04, 2007 1:29 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] NWS SAME Decoder?


I'm looking for a SAME decoder to interface to my repeater controller
via TTL outputs. It'll be taking audio from a UHF receiver tuned to a
link frequency, so a product with a built-in VHF receiver is not what
I'm looking for. The CAT WD-100 would do (and then some), but is there
another similar product out there right now?

James K7ICU





 
Yahoo! Groups Links







RE: [Repeater-Builder] Moto Pulsar 120

2007-03-26 Thread Ralph Hogan
Riley,

I remember seeing a pulsar mod on the web, it might have been this one:
http://www.phreak.org/radio/mods/pulsar.txt

Have a couple of pulsars sitting here I haven't had time to mess with. Was
planning on digging out the duplexers in them. Anyone know how they fair on
the spec anal test bench?

As someone else stated when building a repeater with one of these the
transmit is high and receive is low which is opposite the norm. May be a
problem if your states rptr coordinator bandplan doesn't allow an upside
down pair.

Ralph W4XE



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Riley Frazee
Sent: Sunday, March 25, 2007 8:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Moto Pulsar 120


I have a Motorola Pulsar 120 S Mobile Telephone that was used before
cellular phones. I am told that one can modify this radio to become a
repeater. I know nothing about this radio/phone. How many watts,
channels, VHF OR UHF, or even if this spefic model can be modified to a
repeater. I have searched google and yahoo and msn to see what I could
find out about this 120 S model and I was very unsuccessful. If anyone
has any information that they could pass along to me that would be
great.

Riley.






Yahoo! Groups Links







RE: [Repeater-Builder] Re: Quintron Info Wanted

2007-01-04 Thread Ralph Hogan
Jeff,

The pwr sup unit for the amp is buried at the bottom of a 6' rack full of
stuff so a little hard to get to the back of it this morning. However from
the front of it the meter 0-3 Full scale indicates:

Grid curr 30 mA
Plate Curr 300 mA
Plate V  3 KV
Fuses on the front:
Filament 1A slow blow
30V  2A s.b.
Cntl 1/2A s.b.

So you know at least some maximums for the plate and filaments. I haven't
fired it up yet, but I saw it in service at the last site it was on. My 150
MHz amp is a 4CX250 tube, not sure about the 440 unit. A manual was supposed
to come with my unit, but the guy moved during the deal and the manual
hasn't surfaced yet. If it does I'll scan it for you.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Jeff Kincaid
Sent: Thursday, January 04, 2007 12:30 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Quintron Info Wanted


Nice to see that I have some company.  How much voltage and current
does that supply produce?

Jeff

--- In Repeater-Builder@yahoogroups.com, "Ralph Hogan" <[EMAIL PROTECTED]>
wrote:
>
> I've also got a Quintron 1/4 KW VHF PA and also in need of a manual.
I do
> have the AC PS for mine.
>
> thanks,
> Ralph W4XE
>
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of Jeff Kincaid
> Sent: Wednesday, January 03, 2007 8:59 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Quintron Info Wanted
>
>
> I bagged a Glenayre Quintron 1/4 KW UHF PA at the swap meet last
> Saturday.  I'm looking for a manual, comments from anyone familiar
> with it, and most important, the DC power requirements.
>
> Jeff
>
>
>
>
>
>
> Yahoo! Groups Links
>







Yahoo! Groups Links







RE: [Repeater-Builder] Quintron Info Wanted

2007-01-03 Thread Ralph Hogan
I've also got a Quintron 1/4 KW VHF PA and also in need of a manual. I do
have the AC PS for mine.

thanks,
Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Jeff Kincaid
Sent: Wednesday, January 03, 2007 8:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Quintron Info Wanted


I bagged a Glenayre Quintron 1/4 KW UHF PA at the swap meet last
Saturday.  I'm looking for a manual, comments from anyone familiar
with it, and most important, the DC power requirements.

Jeff






Yahoo! Groups Links







RE: [Repeater-Builder] Mini Audio Amplifier time...

2007-01-03 Thread Ralph Hogan
I've got one of those, but probably a 20 year old model :) He's right, over
the years I can't tell you how many times that little amp has come in handy!
Sits on the lab bench ready to amplify as long as the 9 VDC battery is good.
Well worth every penny!

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of skipp025
Sent: Tuesday, January 02, 2007 3:20 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Mini Audio Amplifier time...


Mini Audio Amplifier time...

It would be some of the best money spent on handy test gear if
many of you picked up a Radio Shack Mini Audio Amplifier.

Part Number: 277-1008

http://www.radioshack.com/product/index.jsp?productId=2062620&cp

Runs $12.99 and based on the time it will save you... well
worth the buck'ola's you'll spend.

You can use this handy beast for service, repairs and in the
case of the last emph & de-emph thread/posts to actually hear the
audio at various stages in your repeater system.

Runs on 9 volts so it's easily portable. The two side mounted
jacks allow you to use it for audio or even a line driver
application. In the current solar repeater thread you wouldn't
in even need to have the original equipment audio hardware
installed. Just bring along the mini amp for testing...

You can also remove the amplifier pc-board from the plastic
case and install it in various project locations... temp or
perm.

I'm sure more than one of you have run into one of these
amplifiers applied into a circuit temp and it was never
removed or changed.

When I speak to some of you on the phone about testing audio
I always try to convey how handy this "little bugger" can be.

Makes for easier trouble-shooting and if you're crafty enough
to make an rf probe, it will detect and amplify various rf
circuits/stages.  Some of you might also harken back to the
original Radio Shack "Signal Tracer", which is pretty much an
equivalent function/device.

If you don't have one... it might be the best $12.99 you've
spent this month.  Be sure to get the 9v battery and a 1/8
inch phono plug along with some shielded wire. Or buy the 1/8
inch on both ends jumper (from the shack) and cut it in half.

cheers,
s.


> "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> Repeater audio amplifier stage to greatly reduce the standby
> current, with a switch to re-enable the audio PA for maintenance
> while at the site.






Yahoo! Groups Links







RE: [Repeater-Builder] GE Mastr II Station

2006-12-21 Thread Ralph Hogan
Bill,

I believe mine was setup as tone remote/rpt as well. Don't remember any
muting problems.
Do you have a manual on the IDA? I think its up on this reflectors website.
If not I can email you a copy (1/2 meg pdf).

I'd start at the receiver drawer first and look at what is going away on the
receiver during TX PTT. The below signals are the ones that you'd want to
look at first.
J931-10 RX OSC CNTL
J931- 17 RX MUTE
J831- 18 RUS
J904-1 CAS
J903-1 RX F1

RXMUTE is related to PL detect, the RX OSC CNTL and F1 xtal control should
be tied constant.

You didn't say if this was a carrier only or channel guard unit?  I have a
sneaky suspicion if you have a stock GE PL decoder in the unit, its half
duplex only. When you key, the pl decoder detects PTT and your CG decode
goes away and then the RX unit mutes via RXMUTE.

On the IDA, RXMUTE/RX1MUTE is H12 to H13 jumper, then there is the H41-H42
jumper on the GE M2 system board that ties the CG decoder boards signal back
to the IDA.

Once you get that figured out, the other external repeater controller mods
should work for you.

Drop me a direct email if you want to chat some more.

Ralph W4XE




-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Bill McLure
Sent: Wednesday, December 20, 2006 7:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] GE Mastr II Station


Hi Ralph,

Thanks for the info that's what I have been looking for.  My station has the
P58 version of the controller which I believe is Tone Remote/Repeat
controller.  The only problem is it has been setup simplex as a tone remote
base.  How do I remove receiver muting on this controller and will your
mod's still work with this setup?

Regards,

Bill...



-Original message-
From: "Ralph Hogan" [EMAIL PROTECTED]
Date: Wed, 20 Dec 2006 16:19:46 -0800
To: Repeater-Builder@yahoogroups.com
Subject: [Spam] RE: [Repeater-Builder] GE Mastr II Station

> Hey Bill,
>
> I pull one of the cable connectors (j1203) plugged into the IDA and insert
a
> small breakout molex to molex cable to get to the rx & tx audio pathes
plus
> PTT to feed up to the ham controller. In this way the internal GE rptr
> controller can be restored to normal and used in a pinch by removing the
> breakout cable. I've documented my version of the GE Master II IDA
> conversion on my website.
>
> http://www.qsl.net/w4xe/rpttech/rpttech21.htm
>
> Includes a schematic/pictorial of the external ham rptr controller wiring,
a
> list of IDA connector pinout descriptions and IDA board layout and pot
> locations.
>
> 73's
> Ralph W4XE
>
>
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of Bill
> Sent: Tuesday, December 19, 2006 11:24 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] GE Mastr II Station
>
>
> Hi!
>
> Does anyone have repeater conversion info on the newer style GE Mastr
> II stations with the all in one controller, metering and speaker
> (19B234871).  I have a VHF station I wish to convert but I would like
> to keep the local station controls, speaker, mic and metering.
>
> Thanks!
>
> Bill
> N6YMZ
>
>
>
>





Yahoo! Groups Links







RE: [Repeater-Builder] GE Mastr II Station

2006-12-21 Thread Ralph Hogan
Thanks Guys, hope it is useful info. Its been a long work in progress.
73's
Ralph W4XE

  -Original Message-
  From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED]
  Sent: Thursday, December 21, 2006 12:11 AM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] GE Mastr II Station


  To:  W4XE.I totally agree with Jim KA2AJH.an excellent informative
GE Mastr II site.  Wish I knew you were around a couple years ago. Great
job.
  Gary K2UQ

  


RE: [Repeater-Builder] GE Mastr II Station

2006-12-20 Thread Ralph Hogan
Hey Bill,

I pull one of the cable connectors (j1203) plugged into the IDA and insert a
small breakout molex to molex cable to get to the rx & tx audio pathes plus
PTT to feed up to the ham controller. In this way the internal GE rptr
controller can be restored to normal and used in a pinch by removing the
breakout cable. I've documented my version of the GE Master II IDA
conversion on my website.

http://www.qsl.net/w4xe/rpttech/rpttech21.htm

Includes a schematic/pictorial of the external ham rptr controller wiring, a
list of IDA connector pinout descriptions and IDA board layout and pot
locations.

73's
Ralph W4XE



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Bill
Sent: Tuesday, December 19, 2006 11:24 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] GE Mastr II Station


Hi!

Does anyone have repeater conversion info on the newer style GE Mastr
II stations with the all in one controller, metering and speaker
(19B234871).  I have a VHF station I wish to convert but I would like
to keep the local station controls, speaker, mic and metering.

Thanks!

Bill
N6YMZ




RE: [Repeater-Builder] 6m heliax duplexer experiment

2006-04-19 Thread Ralph Hogan
Try Nebraska Surplus. They have Johanson and other mfgrs. Nice
photos/descriptions of each on their website. Still aren't cheap at $5 to
$10+ each depending on the pf range.
Unfortunately, they don't have the exact Johanson P/N 5602 I'm looking for
to fix a couple of DB prod VHF cans. However, they do have something similar
that could work in a pinch.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of DCFluX
Sent: Wednesday, April 19, 2006 1:34 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] 6m heliax duplexer experiment


I was working on a "Econo-plexer". Does anyone know where to get
Johansen style piston trimmer capacitors for cheap? I am looking for
the kind that has the screw retaining nut for ground and just the
little round dimple on the other side.





Yahoo! Groups Links












 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





[Repeater-Builder] trimmer caps on the UHF WP-678-R2 BpBr Cans ?

2006-02-27 Thread Ralph Hogan
Posting a question for a friend Ron below.
Ralph W4XE

From: Ron Shaffer <[EMAIL PROTECTED]>

> Guys,
> Anyone know the value of the trimmer caps on the UHF WP-678-R2 BpBr Cans ?
> .. I see a package on Nebraska Surplus web site that is a Johanson (CTP)
> 5702
> that looks to be mechanically the same with a range of .4 to 6 pF
> Any Ideas ?
> Thanks
>
> --
> Ron Shaffer's Hamshack Computer
> Amateur: W4VM / MARS: AAT4SJ






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 




RE: [Repeater-Builder] Exec II repeater, was 100.0 Hz GE Versatone

2006-02-06 Thread Ralph Hogan
Chuck,

Its in the stock 6 mtr mobile mechanical configuration. This is my first
'mobile' version, so time will tell if desense is an issue at ~50W half
power rating output :) Just got it finished and cooking on the bench last
night. My main concern is that I'm going from a split site with uhf link to
full duplex single site using a 1 5/8" hardline duplexer.

I have seen lots of guys on the web using the MCC spun EXEC II mobile to
repeater version and they seem to be happy with the results. I've previously
done two repeaters of the table top EXEC II base station model variant in
both VHF and UHF and they work fine at 20W. Just add some fan cooling to the
internal power supply and PA heat sinks.

73's
Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Chuck Kelsey
Sent: Saturday, February 04, 2006 7:53 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] WTD: 100.0 Hz GE Versatone


I don't have a Versatone, but do have a question.

Did you use an Exec II mobile and did you keep the TX and RX in the
original configuration? I did one several years ago and put the RX in a
separate box because I wasn't sure if it would duplex well in the
original configuration.

Chuck
WB2EDV

Ralph Hogan wrote:

>Putting the finishing touches on a GE EXEC II 6 mtr repeater.
>Need one of the white ceramic Versatone for 100.0 Hz PL.
>
>Anyone have one to sell?
>
>thanks,
>Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





[Repeater-Builder] WTD: 100.0 Hz GE Versatone

2006-02-04 Thread Ralph Hogan

Putting the finishing touches on a GE EXEC II 6 mtr repeater. 
Need one of the white ceramic Versatone for 100.0 Hz PL.

Anyone have one to sell?

thanks,
Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] Multiple receivers one antenna ???

2005-12-18 Thread Ralph Hogan

Along these lines, someone on the list mentioned using coax multi-dropped
(coax tee) off to each receiver for a voter application. Can't find the
original posting. I was curious about the lengths required between the
antenna and then to each radio?

tnx,
Ralph W4XE




If you are able to lose  = - 6 db of the signal to
each receiver you could use a passive device which you
can build yourself and save many many dollars.

There is pleny of information on the web  on a 4-port
"Wilkonson divider ".

The same phasing harness is used for a 4-stack dipole
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

>
>   It's easy!  What you need is known as a
> multicoupler.  This unit usually comprises a
> preselector to limit the bandwidth of the incoming
> signals, a low-noise amplifier, and a splitter with
> two, four, or eight output ports.  The gain of the
> amplifier is tailored to the number of splits so
> that the loss in the splitter is overcome.
>
>   73, Eric Lemmon WB6FLY
>
>
> -
>   From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Vincent Caruso
> Sent: Sunday, December 18, 2005 1:04 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Multiple receivers one
> antenna ???
>
> I would like to install one antenna for four link
> receivers.  How
> complicated is this? What do I need to do this?
>
> Thanks in advance
>
>
>
>
>
>
>






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 




RE: [Repeater-Builder] Mastr II Exec. desk top

2005-11-25 Thread Ralph Hogan
I bought two from Paul at Dayton. They are in good condition and met specs
after retuning.

Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Paul Finch
Sent: Friday, November 25, 2005 10:34 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Mastr II Exec. desk top


About 30 leftThat defined as plenty?

Paul


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Neil McKie
Sent: Friday, November 25, 2005 1:44 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Mastr II Exec. desk top



  Please define ' plenty?'

  Thanks,

  Neil

Paul Finch wrote:
>
> Hello,
>
> I have plenty of 88 split desktop radio in stock.
>
> Paul
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of
> [EMAIL PROTECTED]
> Sent: Thursday, November 24, 2005 12:36 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: Re: [Repeater-Builder] Mastr II Exec. desk top
>
> At 20:49 11/23/2005, you wrote:
> >I recently pick up a Mastr II Exec. Desk top radio with an 89split.
> >Is this radio worth converting to a 70cm repeater?
> >
> >Thanks
> >Frank
> >N9WYN
>
> 470-494 MHz split.  Convertible to 70 cm amateur but not worth the trouble
> IMO when there are lots of 88 radios out there.
>
> If you like the form factor of the Exec II base radio, get it & find an 88
> mobile, then swap out the RX front-end assy., RX oscillator/multiplier
> board & TX exciter board.  The RFPAs are the same.
>
> Bob NO6B
>
> Yahoo! Groups Links
>
>
> Yahoo! Groups Links
>
>
>
>






Yahoo! Groups Links














Yahoo! Groups Links












 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 




RE: [Repeater-Builder] MASTR II with IDA P52 controller questions

2005-11-24 Thread Ralph Hogan
Joe,
I've done this with a GE Master II, IDA and RC85. Contact me directly.
Ralph W4XE


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Joe
Sent: Thursday, November 24, 2005 5:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] MASTR II with IDA P52 controller questions


I've dusted off an old project that I have started on many times and never
got it finished.  Now it's crunch time, as I need it on the air soon.

I have a Mastr II with the IDA P52 controller.  It is now working just
fine, and I now want to add an SCom 6K controller to it.  The complications
start because I want to leave the IDA controller functional as a
"bare-bones" controller and use the speaker on the IDA for monitoring at
the site.  The SCom will have the audio passing through it, so I will have
to somehow stop the IDA from passing audio from the receiver to the
transmitter.  I plan on putting a toggle switch to break the PTT and TX
audio from going to/from the IDA controller and connect these leads to the
SCom controller.  Other leads, such as COS and PL decode would be
bridged.  That way, I will have LED indications on the IDA and audio
available at the IDA speaker for troubleshooting.  If I want to remove the
SCom controller, all I have to do is flip the switch and the IDA controller
would be functional.

Any ideas, suggestions?  Anyone out there already doing this with the IDA
controller?  Maybe I'm just over-engineering this project.

73, Joe, K1ike







Yahoo! Groups Links













 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 




RE: [Repeater-Builder] Id'ing receiver links

2005-11-24 Thread Ralph Hogan






Glenn,
 
I drop the pl tone on the link tx when there 
is no COS active. When the link controller (NHRC2) id's the link tx the 
main site voter rx won't pick it up unless there is traffic going because there 
is no PL. So this effectively filters 
out 'most' of the link id'ing without having to notch 
filter the cw id audio freq at the main voter rx. This requires you have PL on 
the link. At my noisy sites, this is a must. I dont flat audio pass the user pl 
tone. Its filtered out and regen'd.
There are of 
course advantages to flat audio on voted systems but it usually requires more 
radio modifications to implement.
 
I haven't 
read the moto voter system manual in awhile but I seem to recall it is 
similar to the GE system. In the GE, the local voter link rx encodes a 1950 
Hz inactivity tone to the voter rack at the main site. When the voter 
receiver picks up COS/PL from the remote link tx it removes the 1950 Hz tone and 
passes the audio to the voter rack. The voter rack then starts voting that 
channel. The use of these signaling tones means you dont have to look at 
COS detect signals which is nice in a remote audio only wireline application. 
You shouldn't have to have the link tx up 24/7.
 
FWIW 
some local guys dont ID their link tx, arguing its ID'd on the main 
repeater but thats stretching the FCC rules in my opinion. However they've 
gotten away with it for years. Your mileage may 
vary. With my luck I'd get a knock on the door from the FCC.
 
Ralph 
W4XE
 

  -Original Message-From: 
  Repeater-Builder@yahoogroups.com 
  [mailto:[EMAIL PROTECTED]On Behalf Of 
  [EMAIL PROTECTED]Sent: Thursday, November 24, 2005 10:01 
  AMTo: Repeater-Builder@yahoogroups.comSubject: 
  [Repeater-Builder] Id'ing receiver links
  Hi,
  Just wondered if anyone knew the requirements for id'ing rf links? These 
  will be used with SpectraTac and will be constantly keyed.
  Thanks,
  Glenn













  




  
  
  YAHOO! GROUPS LINKS



   Visit your group "Repeater-Builder" on the web. 
   To unsubscribe from this group, send an email to: [EMAIL PROTECTED] 
   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



  









[Repeater-Builder] GE Exec II Chn element interchangeabliity

2005-06-09 Thread Ralph Hogan

A friend has asked me a question about Exec II channel elements and isn't on
this reflector. So I'll pose the question for him.

I know that in a pinch the GE Mastr II ICOMS can be substituted somewhat for
VHF/UHF, Low band maybe even? (couldn't find the exact thread on this). But,
I don't think I've seen mention of the Exec II's (or MVP's) being able to
swap a VHF chn (or 'crystal') element into a UHF radio or vice versa. Also
what about the low band 50 Mhz? Since the Exec II version doesn't have the
oscillator or EC/2C/5C business, perhaps they will swap around easier
between bands. This is all of course assuming the 'proper' xtal is inserted
for the desired freq of interest.

thanks,
Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 




RE: [Repeater-Builder] State of AL Two Meter Frequency Coordinator contact?

2005-04-26 Thread Ralph Hogan

I'm forwarding to the President of ARC to make the necessary corrections in
that database.

Ralph Hogan W4XE
Northern Director for Alabama Repeater Council


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of mch
Sent: Tuesday, April 26, 2005 4:38 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] State of AL Two Meter Frequency
Coordinator contact?



John,

When you talk to them, ask them to update their web site with the NFCC.

Joe M.

Ralph Hogan wrote:
>
> John,
>
> Contact Howard Grant (below) for coordination request.
>
> The troy state univeristy url is old. Used to auto-direct you to the new
> one, but looks like they've finally pulled the plug. The new one is:
> http://www.alabamarepeatercouncil.org/ which Jim correctly gave you.
>
> The website has an online application you can download and send to Howard.
> I'd drop Howard an email telling him where the proposed repeater would be
> located. You'll find many areas of Alabama have no open 2 meter pairs
> available.
>
> Howard Grant, K4WWN  [EMAIL PROTECTED]
> Frequency Coordinator, Alabama Repeater Council
>
> 73's
> Ralph Hogan W4XE
> Northern Director for Alabama Repeater Council
>
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of John Burch
> Sent: Tuesday, April 26, 2005 3:04 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] State of AL Two Meter Frequency Coordinator
> contact? OT Alert!
>










 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] State of AL Two Meter Frequency Coordinator contact?

2005-04-26 Thread Ralph Hogan

John,

Contact Howard Grant (below) for coordination request.

The troy state univeristy url is old. Used to auto-direct you to the new
one, but looks like they've finally pulled the plug. The new one is:
http://www.alabamarepeatercouncil.org/ which Jim correctly gave you.

The website has an online application you can download and send to Howard.
I'd drop Howard an email telling him where the proposed repeater would be
located. You'll find many areas of Alabama have no open 2 meter pairs
available.

Howard Grant, K4WWN  [EMAIL PROTECTED]
Frequency Coordinator, Alabama Repeater Council

73's
Ralph Hogan W4XE
Northern Director for Alabama Repeater Council



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of John Burch
Sent: Tuesday, April 26, 2005 3:04 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] State of AL Two Meter Frequency Coordinator
contact? OT Alert!







 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] RE: Ralph Hogan's website...

2005-04-22 Thread Ralph Hogan





Just 
back from travelling out of town, so didn't see the post about the website. 
Sorry for the dead links to my hard drive. At least the Master Pro info works 
that I ponted him toward.  When I went from writing my own html to 
Microsoft 'front page' (wish I hadn't...) and moved the website at the same 
time, the links for the MII and MIcor didn't get set correctly. I'll see 
about fixing it this weekend and adding a bunch more info.  Will post a 
note here when I get it resolved.
 
thanks,
Ralph 
W4XE
 

  -Original Message-From: 
  Repeater-Builder@yahoogroups.com 
  [mailto:[EMAIL PROTECTED]On Behalf Of William E. 
  JanesSent: Wednesday, April 20, 2005 11:34 PMTo: 
  Repeater-Builder@yahoogroups.comSubject: [Repeater-Builder] RE: 
  Ralph Hogan's website...Ihave gone to 
  the website. I was able to access the initial Micor Page, however the link 
  labeled:  " Ordering a UHF Micor 
  Crystal for repeater service"  goes 
  nowhere. The Properties for the link goes to: file:///E:/webpages/w4xe/rpt/tech/uhfxtal.htm. 
  Clicking on the link does nothing. Bill 
  N9SII













Yahoo! Groups Links

To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ 
To unsubscribe from this group, send an email to:[EMAIL PROTECTED] 
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.










[Repeater-Builder] RE: GE Mastr PRO deskmate power supply question.

2005-04-20 Thread Ralph Hogan

Dennis,

You might want to check out my GE Master Pro page. Has the schematics,
terminal block descriptions, tips and hookups.
http://www.qsl.net/w4xe/rpttech/rpttech1.htm

The warning about 117VAC next to COS is a very good one. Be careful

73's
Ralph W4XE



Greetings,

Better yet if someone has a schematic for this unit that would also
detail the barrier strip designations, please contatct me. I will pay
for a schematic of this power supply.

Thanks,
Dennis / KB8YGC






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] Fan Temp Switch

2005-04-08 Thread Ralph Hogan


For the fan application, you can purchase from digikey
http://www.digikey.com/ over the web or landline a CANTHERM bimetal temp
normally open switch which will close when the temp reaches the desired
setpoint. Has spade lugs for connection. Remember to apply a dab of heat
sink grease when mounting. They are in the $8-10 range. Note they are rated
in degrees C, so you'll have to convert to degrees F to pick the right
one!!! Heres a link to a java script:
http://www.nomoreodor.com/celsius_to_fahrenheit_conversion.htm
The part number will be 317-109X-ND, where X selects the temperature. The
one I picked was 104 degreeF range if I remember right. Take into account
the ambient temp range of the installation you are in when selecting the
setpoint temp. A setpoint too low would keep the fan on all the time in an
uncooled repeater shack in Phoenix AZ.


73's
Ralph W4XE


-Original Message-
From: kc4wgh [mailto:[EMAIL PROTECTED]
Sent: Friday, April 08, 2005 11:07 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Fan Temp Switch




Back again.  Any suggested on a vendor for a temperature switch to
turn the 12 vdc fans ON and OFF.  I used a test setup this morning
with some stud mounted temperature switched and a temperature device.
They make-up at 150 degree F, and opens at 120 degree F.  I think this
is allowing the heat sink to get too HOT!  Thanks...








Yahoo! Groups Links














 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] Linking Question

2005-03-30 Thread Ralph Hogan

If the link requires PL, then turn off the PL when there is no COS from a
user. (Many controllers can be rigged to implement this, or you can make a
circuit to mute PL driven off COS gone). This dead hang time after a user
lets up is usually when the repeater tries to ID. The distant repeater wont
repeat it since it doesn't hear PL on the signal.

However, normally if the link radio is established on a 'remote-base' port
of both systems, the controller is usually programmed to not send ID audio
down a remote base port, so no Id-overlay problem.

73's
Ralph W4XE

-Original Message-
From: Tony [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 29, 2005 7:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Linking Question





In my quest to learn about building my first repeater, I have thought
of a potential problem.

If I wanted to set up an RF link to another repeater, how do you
overcome the potential problem of each of the repeaters ID'ing
(walking on each other) at the same time. (I could see this happening
if both repeater sites were idle at time of key-up.  (Given that most
repeaters ID in 10 minute intervels). Is there something that should
be done during construction?

Thanks.

Tony
KC5WBJ











Yahoo! Groups Links














 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] Re: Hyper Terminal

2005-03-20 Thread Ralph Hogan


You might also want to look at Teraterm PRO. Its a freebee out on the web if
you do a search. Latest version I found was Ver 3.13. Just downloaded it
yesterday to talk to an eprom programmer. Works great.

Ralph W4XE


-Original Message-
From: Joe [mailto:[EMAIL PROTECTED]
Sent: Sunday, March 20, 2005 7:05 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Hyper Terminal



Hello skipp,

Please email me the public domain version of PCplus, or maybe you could
post it to the files section?

Thanks,
Joe, K1ike


At 12:38 AM 3/20/2005 +, you wrote:


>I can Email a (public domain version) dos copy
>of pcplus to anyone who wants one.







Yahoo! Groups Links














 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





RE: [Repeater-Builder] Going got Rough, Forced to change Freq, Need Answers

2005-02-23 Thread Ralph Hogan

The Master Pro RX will work fine down there.
We used to use a Master Pro repeater for a 144/145 split repeater without
any problems.

Ralph W4XE

-Original Message-
From: w9mwq [mailto:[EMAIL PROTECTED]
Sent: Wednesday, February 23, 2005 5:47 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Going got Rough, Forced to change Freq, Need
Answers


Not sure how well all the equipment will handle the change. Here is
what I have as equipment, and will it all make it there.  We are
moving from 146.925- to 145.410-, and the expense is the last thing
I needed right now.

GE MASTR PRO ER41 Receiver

How low in frequency will the MASTR Pro go before I loose quality
sensitivity, right now, it's about .15 uv with a preamp, and
receives excellent.  The vocom amp is model #VVC200-2ref and was
designed for the 146 Mhz range.







 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 





[Repeater-Builder] GE Master II history dates

2005-01-25 Thread Ralph Hogan

Have had some hams in the club asking about the GE Master II equipment I use
for all of our repeaters.
Can any one answer the question of what year was the Master II introduced
and when was it last produced?

thanks,
Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






[Repeater-Builder] Re: 220 Repeater

2005-01-20 Thread Ralph Hogan

thanks for the comments guys on PL encoding the old midlands. Its been a few
years since I messed with them. Seems I remember I did something similar
with cap/resistor tapped into it. Will have to dig them back up and see
where I was trying to inject it. UHF 440 control/link pairs around here are
drying up fast, so I thought I'd reuse these old radios and get some use out
of them on 220 MHz. As for main repeater hardware on that band the club is
just starting a GE M2 vhf to 220 conversion (w/non-pll exciter).

73's
Ralph W4XE

-Original Message-
From: russ [mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 19, 2005 8:14 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: 220 Repeater



We use to tie them on to the wiper side for the dev. pot throught a 15 mfd
bipolar cap.
>From what I remimber it worked ok.
Good luck,
Russ, W3CH
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>






Yahoo! Groups Links














 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






RE: [Repeater-Builder] Re: 220 Repeater

2005-01-19 Thread Ralph Hogan


While we are on the subject of midland/clegg 13-509 radios/repeaters has
anyone had luck PL'ing the exciter. It wasn't setup originally for PL
encoders. Initial attempt exciter+PL audio wasn't very promising with a
TS-32. Looks like you'd have to FM the varicap directly. Was going to use
some I have as link radios and wanted to PL the link.

tnx,
Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






RE: [Repeater-Builder] Help: GE M2 PL decode dropout on voice peaks and IDA control shelf

2004-12-26 Thread Ralph Hogan

Hey Fred,

Thanks for the reply. You must have missed the orginal posting. It's a stock
GE digital pl encoder card. Swapped it out with another GE digital card and
also a comm spec TS-64MII. Also swapped out the entire rx & audio boards.
No difference between the two GE PL decks or alternate rx components. The
TS-64 did seem a little better than the GE in decoding without talking off.

Interesting point in seeing the lpf fail. Will probe around some more on the
pl deck.

Didn't get a chance to get back to it yesterday...ho ho.. Have a couple of
things to try that were brought up earlier.

73's
Ralph W4XE



-Original Message-
From: Fred Seamans [mailto:[EMAIL PROTECTED]
Sent: Sunday, December 26, 2004 7:00 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Help: GE M2 PL decode dropout on voice
peaks and IDA control shelf



Ralph: You do not say what you are using for a CTCSS decoder.
Fred
W5VAY






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






RE: [Repeater-Builder] Help: GE M2 PL decode dropout on voice peaks and IDA control shelf

2004-12-25 Thread Ralph Hogan

Thanks guys for all the comments.

Yes, the one ht I normally use on the bench may be a little hot on PL (er I
mean CG hihi) Dev and voice dev, but not way out of bounds. Kind of one of
the reasons I use that one, is it's on the edge as a user radio might be.

The point is, it's never done that with any other GE M2 on the bench before.
Thus my questioning of the hardware under test.

As for quality and standardization of radios, I agree. They are all over the
place audio wise. Sure I could crack open this particular HT and turn it
down to 200 Hz pl deviation and 4 KHz peak voice dev. I know if I put the
repeater up on the mtn site today, some of my users will talk it off too. It
would be hard to bench calibrate all the users radios out there. Again, I
just think there is something in the hardware I'm missing.

I did grab two other ht's as stated earlier and they created the same
problem. One HT was a moto saber btw, so hopefully they did their homework
correctly on PL injection into the transmitter audio chain. I dont remember
the exact particulars on the Saber, but I remember it does have a lower PL
dev and much lower audio dev. Still shuts the PL decoder down.

I looked at the audio levels going into the pl deck. Didn't look out of
whack.

I'll try changing the PL tone from 127.3 to something lower that I normally
use. That was a good suggestion and easy to try. Maybe I have one of those
voices for 127.3.

Someone mentioned supply voltages. The 12 VDC supply is the bench supply
right now. I adjusted the 10 VDC a long time back when first starting with
this 'new' repeater station. But, will recheck the 10 VDC, just in case.

Well its getting late and Santa is near (for the kids). Thanks again guys,
you given me some things to think about.

best holiday wishes,

Ralph W4XE






 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






[Repeater-Builder] Help: GE M2 PL decode dropout on voice peaks and IDA control shelf

2004-12-24 Thread Ralph Hogan

Working on an IDA control shelf equipped UHF GE M2 base/repeater. Normally
used to working with a lot of the
older card rack style control shelves. Never saw this happen on other GE M2
repeaters or mobiles.

Here's the situation:

I am using the repeater system looking at RUS for PL detect and CAS for COS.
Either running repeater in stock IDA repeat mode, or externally wired RC-85
controller.

Using an HT on the bench if I hit the audio hard getting close to 4.5 KHz
peaks the repeater would shut down
in PL mode (127.3 Hz FWIW). If I run in COS only mode, no issues. I had
originally thought perhaps it was something in the IDA control shelf, since
this is my first IDA equipped machine. Probing around saw that U7A 4066 in
the IDA was muting the RX audio vol/sql hi to TX audio hi path. That control
line leads to RXMUTE (amoungest other sources) which started me looking at
the PL decoder.

Used a pl deck extender card to isolate the PL deck's RXMUTE decode signal
from the IDA. Its the decoder for sure, rxmute high (pl detected) on low
level audio and rxmute drops low (no pl decode) on loud voice peaks.

This is a GE stock digital PL decoder. Swapped in another ge pl deck. Same
deal. Swapped in a TS-64MII and it also does it, but not as bad.

I even went so far as to look at R608 audio preamp pot inside the shielded
box on the audio/sql board. It adjust the VOL/SQL hi signal toward the pl
detector. Its adjusted within limits and didn't make any difference.

I swapped out the GE RX front end and audio/sql boards with known good ones
just for grins thinking distorted audio. Not the problem. Rechecked the rx
chn element freq using the F-11.2 trick on the service monitor. It's dead
zero'd.

This effect happens on several HT's on hand. Main 'test bench' HT measured
650 hz pl dev and 4.5 KHz dev voice peaks. Audio source, my highly
calibrated voice 'Ahh 1 2 3 W4XE' hihi..

Now I can fully understand a real distorted audio signal or one that's way
over deviated out of the receiver limits not being decodable. But, I can't
ever remember being able to talk off a pl decoder on innumberable GE M2's
I've had on the bench before.

The only new variable is this IDA shelf and maybe the system interface board
in the drawer. Haven't compared it to a card rack version to see if they are
different. But, not much to go wrong on that system interface board in any
case.

Thought I'd throw out an email while everyone is sitting at home dreaming
about sugar plums..

Has anyone else seen this problem?

73's and happy holidays
Ralph W4XE








 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
 






RE: [Repeater-Builder] DB Products Duplexer Conversion

2004-01-05 Thread Ralph Hogan
Hey Gary,

I was the one that promised. Just got the info in the mail today (thanks!)
and scanned it all in.
I created a small webpage pointing to all of the info you sent, plus some
more on the individual BP or notch cans which make up the DB-4046 and
DB-4048.
http://www.qsl.net/w4xe/db4048.htm

73's
Ralph  W4XE

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, January 05, 2004 9:26 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] DB Products Duplexer Conversion


Bob Parker  AC4RX,
I have a complete copy of the DB4048 factory modification to 2 meter ham
band on its way to you in Florida.  Its leaving 1st class this morning from
Trenton, NJ.
It will have probably more info that you want to know about the DB4048...hi.
I have a list of those who asked for the info and everything is Xeroxed and
ready to go. One of the requesters promised to post it in a web site which
for
all those interested. That would be great.
73,
Gary  K2UQ





 

Yahoo! Groups Links

To visit your group on the web, go to:
 http://groups.yahoo.com/group/Repeater-Builder/

To unsubscribe from this group, send an email to:
 [EMAIL PROTECTED]

Your use of Yahoo! Groups is subject to:
 http://docs.yahoo.com/info/terms/