[Repeater-Builder] MSF 5000 CLB

Hi All I am runnig a MSF 5000 CLB with a Arcom controll. I am also runnig echolink on the repeater. I have the repeater say the time every hour and half hour. I was going to work today and the repeater said to time ok. Then I was going to get on echolink and the repeater did not key up so I ca

Re: [Repeater-Builder] Transistor Switch

At 12/7/2007 10:01, you wrote: >It sounds like what he has is an open collector from the controller, >the fact that it will sink 150Ma would indicate that it is not TTL or >CMOS (or any other logic family). > >Most likely it is an open collector designed to pull a relay of no more >than 150ma. The

RE: [Repeater-Builder] Looking for some info good or bad on this coax?

Steve, I'd like to know more about the "copper/aluminum" center conductor. Does that specification mean that it may be either copper or aluminum, or that it is copper-clad aluminum? Either way, I wouldn't touch this stuff! If the manufacturer is not a qualified supplier of Military-Specificatio

Fw: [Repeater-Builder] Digest Number 5925

Repeater Builder - Original Message - From: Jack Davis To: No Reply Sent: Friday, December 07, 2007 9:34 PM Subject: Re: [Repeater-Builder] Digest Number 5925 I did remove a full turn off both helical resonators on the output of the receiver oscillator, they do have a big peak in the

Re: [Repeater-Builder] Converting the GE MastrII Intercom switch to a Disable switch.

I 'cheat' - the GE IDA controller has one of these built in. In position 1, it's the external controller. Position 2 is the internal one. Position 3 (temporary spring contact) is the manual PTT. I switch the RX audio and the COS in order to get two completely separate paths so there is no crosstalk

[Repeater-Builder] Re: Converting the GE MastrII Intercom switch to a Disable switch.

I'll usually do that same thing-very handy. On one MII, I'll push the front panel on-off switch on the 35A GE power supply. Still not up to the of the on/off/enable switch though... Laryn K8TVZ Merry CHRISTMAS All! --- In Repeater-Builder@yahoogroups.com, "Mark Stennett" <[EMAIL PROTECTED]>

RE: [Repeater-Builder] Looking for some info good or bad on this coax?

Considering the prices I pay (in the trade) against common retail one can't be certain , testing a bit would be a great start To: Repeater-Builder@yahoogroups.com From: [EMAIL PROTECTED] Date: Fri, 7 Dec 2007 19:34:08 -0700 Subject: Re: [Repeater-Builder] Looking for some info good or bad on th

Re: [Repeater-Builder] Converting the GE MastrII Intercom switchto a Disable switch.

I do the exact same thing. Chuck WB2EDV - Original Message - From: "Mark Stennett" <[EMAIL PROTECTED]> To: Sent: Friday, December 07, 2007 10:24 PM Subject: Re: [Repeater-Builder] Converting the GE MastrII Intercom switchto a Disable switch. > On my repeater interfaces, I include a

Re: [Repeater-Builder] Converting the GE MastrII Intercom switch to a Disable switch.

On my repeater interfaces, I include a SPDT switch with a center off position in the PTT line. One direction for normal repeater operation, center is off, the other direction is manual transmit. Works great for quick desense testing or disabling the transmitter if I am working on things. Kevin

Re: [Repeater-Builder] Converting the GE MastrII Intercom switchto a Disable switch.

You forgot - pull the ICOM. (But I like a switch) Chuck WB2EDV - Original Message - From: Kevin Custer To: Repeater-Builder@yahoogroups.com Sent: Friday, December 07, 2007 10:16 PM Subject: Re: [Repeater-Builder] Converting the GE MastrII Intercom switchto a Disable switc

Re: [Repeater-Builder] Converting the GE MastrII Intercom switch to a Disable switch.

Nate Duehr wrote: You guys do realize the mod is specifically for a MASTR II Station, right? I don't think you're discussing MASTR II Stations anymore. On a MASTR II station, a disable TX switch simply isn't necessary. /The proof is in the pudding: There have been hundreds of technicians

Re: [Repeater-Builder] New poll for Repeater-Builder

Repeater-Builder@yahoogroups.com wrote: > Enter your vote today! A new poll has been created for the > Repeater-Builder group: > > Which do you prefer? > > There is a current debate about the usefulness of a Push To Talk (PTT) > Disable switch on your repeater. > Would you rather have a switch

Re: [Repeater-Builder] Looking for some info good or bad on this coax?

w2sxk wrote: > Does anyone have any experience or info on this coax good or bad? Below > is the info on it. I'm looking at buying a spool or so for a group where > I live to divi up. Will use mostly for household VHF/UHF base service. Steve, Anything that claims to be as good as LMR-400 for les

Re: [Repeater-Builder] Converting the GE MastrII Intercom switch to a Disable switch.

Joe wrote: > Imagine pulling off the coax to the PA to do some quick voltage tests. > The DVM cable gets caught around the coax and flips it onto the circuit > board. The coax shield makes contact with the A+ trace on the board and > it instantly turns bright red before going up in smoke. Re

Re: [Repeater-Builder] Transistor Switch

Kevin & Natalia wrote: Hi All, I know this is a silly question, but my brain is dead and I can not remember how I did the other ones. I am in need of a simple transistor switch to ground. I am using a control line in my repeater controller to switch on some cooling fans, the controller wil

Re: [Repeater-Builder] Looking for some info good or bad on this coax?

Looks like LMR400 clone. Probably pretty good quality stuff, looking at the data sheet. Price seems right, too, at 38 cents per foot, that is a real good price. Joe --- w2sxk <[EMAIL PROTECTED]> wrote: > > Does anyone have any experience or info on this coax good or bad? > Below > is the info o

Re: [Repeater-Builder] Looking for some info good or bad on this coax?

It seems to resemble LMR400. Probably OK for a base station, but since it has foil plus braid over it, you will have problems if it's used for duplex operation, as in a repeater, especially if used outdoors where the expansion/contraction will cause the braid to rub over the foil. It may also requ

[Repeater-Builder] New poll for Repeater-Builder

Enter your vote today! A new poll has been created for the Repeater-Builder group: Which do you prefer? There is a current debate about the usefulness of a Push To Talk (PTT) Disable switch on your repeater. Would you rather have a switch or use some other means of disabling your repeater; l

Re: [Repeater-Builder] HELP NEEDED - Programming Motorola GR-1225 repeater accessory port

I had similair problems when I tried to interface mine to a NHRC controller. My solution was to call the local Motorola dealer where I bought it from and tell him the two controlers would not play together. ( The repeater has a built in controller ). His solution was to shut off the repeat function

[Repeater-Builder] Looking for some info good or bad on this coax?

Does anyone have any experience or info on this coax good or bad? Below is the info on it. I'm looking at buying a spool or so for a group where I live to divi up. Will use mostly for household VHF/UHF base service. Steve - W2SXK / [EMAIL PROTECTED] ---

[Repeater-Builder] Motorola DSM-II

Anyone out here familiar with the Motorola DSM-II module? It is a 4 channel 4W E&M modukle for their TenSr channel bank that performs simulcast packet time stampping. I have a rather obscure question on a topic that Motorola doesn't document; they'd rather do the (rather simple) project and charge

Re: [Repeater-Builder] Transistor Switch

I've been reading replies, and I have to ask...why not a relay? Moving parts and contacts, yes, but a good one will outlast the fan, the small added current consumption and heat generation are usually not an issue, and it allows isolating the controller's circuitry completely from motor transien

Re: [Repeater-Builder] Transistor Switch

Since he was 'sinking' 150 mA from his source, I would assume he is using the fan control output from a controller, and he didn't have enough sink current. You usually don't talk about 'sink' current on a TTL output. Also, no inverter is required on the circuit I described. If a grounded emitter

Re: [Repeater-Builder] Transistor Switch

It sounds like what he has is an open collector from the controller, the fact that it will sink 150Ma would indicate that it is not TTL or CMOS (or any other logic family). Most likely it is an open collector designed to pull a relay of no more than 150ma. These are very common. But his fan draws

[Repeater-Builder] Re: help with repeater

--- In Repeater-Builder@yahoogroups.com, "k6jsi" <[EMAIL PROTECTED]> wrote: > > --- In Repeater-Builder@yahoogroups.com, "Jason" wrote: > > > > I am looking for some one in my area to help build a Vhf repeater. > The > > help would need to be hands-on.Any one that can help please let me > > kno

Re: [Repeater-Builder] Re: Transistor Switch

At 12/7/2007 00:36, you wrote: >Hi Bob, > >Yahoo sys always strips out lead spacing on such diagrams. Trick is >to start each line with a character - see below. That doesn't seem to work either, as there are spaces between some of the words & graphic characters that were also stripped out. Good

Re: [Repeater-Builder] Transistor Switch

At 12/7/2007 04:55, you wrote: >A simple solution is to use a PNP transistor in >emitter follower configuration, with the base to your >150 mA source and the emitter to your 400 mA load, and >the collector to ground. That won't work if Kevin is working with standard TTL voltage levels. When the

Re: [Repeater-Builder] MII Receiver

I should correct that, the copper coils on the rx side are separated, the tx exciter is the double assy.. Same problem however was on each, getting them in to range with sufficient tuning and energy to still pass the correct multiplier through... I ended up checking the factory

Re: [Repeater-Builder] MII Receiver

While I have never seen or heard of a case, it may be possible.. However, it is most likely not the case. I suspect insufficient drive from the oscillator chain through to the mixer.. The copper helical bandpass filter at the end of the L.O. chain will not tune without mods, getting them into t

Re: [Repeater-Builder] Converting the GE MastrII Intercom switch to a Disable switch.

Eric I agree, but I think experience makes a believer out of you. Imagine pulling off the coax to the PA to do some quick voltage tests. The DVM cable gets caught around the coax and flips it onto the circuit board. The coax shield makes contact with the A+ trace on the board and it instantl

Re: [Repeater-Builder] Transistor Switch

A simple solution is to use a PNP transistor in emitter follower configuration, with the base to your 150 mA source and the emitter to your 400 mA load, and the collector to ground. A power transistor with the case to the collector (which is normal) could be mounted directly on the chassis with no

[Repeater-Builder] Re: Transistor Switch

Shoud have added - click reply (when in Yahoo) and that should work. Sri Doug - GM7SVK --- In Repeater-Builder@yahoogroups.com, "Doug Hutchison" <[EMAIL PROTECTED]> wrote: > > Hi Bob, > > Yahoo sys always strips out lead spacing on such diagrams. Trick is > to start each line with a character

[Repeater-Builder] Re: Transistor Switch

Hi Bob, Yahoo sys always strips out lead spacing on such diagrams. Trick is to start each line with a character - see below. Best regards, Doug - GM7SVK > OK, ASCII graphics time: > > to fans > O > | >