Batboard

kb4mdz

The Devil, as they say, is in the details...

kb4mdz

Well, as close as I can look at the picture, it probably takes audio from Pin 11, which Repeater-builder lists as Flat/Filtered RX audio; low-level, and Pin 7, ground. http://www.repeater-builder.com/motorola/cdm/cdm-acc-conn.html Accessory connector kit is HLN9457AR; Then the picture shows an audio...

kb4mdz

Have a COM120C here; display screen is kinda dim, fuzzy characters/no sharp looking, and when it starts up there are lots of 'streaks' in the display, different areas of the display at different times of bootup; Ver 4.19, main program, screen is yellowish characters on blue background. Are replaceme...

kb4mdz

Are you wanting to connect them as back-to-back repeaters? What comes in VHF, goes out VHF and UHF, and what comes in UHF, goes out UHF and VHF? I've done similar with a Quantar and a Mastr 3, using the wildcard tables on the Quantar and COR signal on the M3; and just tie the wirelines across to eac...

kb4mdz

OK, now I think I understand; you said it's on the base frequency (output) when the mobiles are transmitting (on the input). Linding blash of flight. So it acts like a remote base, half-duplex (2 frequencies), but does not (just like you said, but I glossed over!!) repeat the mobile traffic unless e...

kb4mdz

Okay, it may be an SP or homebrew thing then (just guessing, like any good 2M repeater rat; talk at length about something I know little about). BMT (before my time) - 30 plus years ago - a club repeater here would turn on a beep if AC maind dropped & it was running on battery. Homebrew controll...

kb4mdz

Maybe you're thinking of 'channel marker?' I know an Orbacom TDM console I was dealing with once that the channel marker function got accidentally enabled on a channel, and it continued to put out a beep on the channel, and confusing every body until we could get out there, find it on the one consol...

kb4mdz

Poor PL decode? Poor PL Encode on the repeater output? (level too low, or distorted)?

kb4mdz

Just off the top of my head, I don't know that SINAD is defined at full volume; I'll look into it. But that makes sense; every time I've run a SINAD test, I just set to volume control to a 'comfortable' level, maybe mid-range. And I'm not surprised by your results either, as audio chains in such sim...

kb4mdz

Appreciate the input, but this thread is way old. We ended up using the Quantro as a development unit for some site monitoring. Also, turns out even at full 350 watts into a dummy load, it didn't draw but maybe 14 amps A/C; so I ran it temporary on a 15A NEMA plug, at reduced power (obviously even l...

kb4mdz

Mike & Marshall -

Yes, Raleigh CoR shop has a 4000.

kb4mdz

Yes, you should, assuming everything is connected correctly. Sorry, don't mean to sound snarky or anything, but we've all had brainfarts ocasionaally, right? The 284 is a 4-line remote, isn't it (been a while)? I forget how it comes up on POR; or don't you have to tell it which lines to automaticall...

kb4mdz

Here's a thread with the MCS2000 Access. conn. pinout: http://batboard.dreamhosters.com/viewtopic.php?t=3906 Tho let me ask this question: What's the console setup? A Centracom Console? Or another manufacturer? 2 wire or 4 wire interface? WHy can't you just hang some more tone remotes off the BIM/Li...

kb4mdz

And isn't that why service pukes hate sales pukes? Esp. when the sales pukes are the ones who rise in the company and take over? I've seen this happen sooo many times.

kb4mdz

IMO, poor pager RX & Decode is also a function of software decoding, vs. old style reeds/forks, or even active filters. Think there was some discussion of this a few years ago here on batboard. Makes it more important to keep good control of modulation levels. Jim202, maybe it's time to set up s...

kb4mdz

Most specifically, how easy is interfacing? My quantars I've got I have connected to some site monitoring equipment. I take out 3 signals, COR, Station Keyed, and a signal that's active when the PTT comes from wireline. Then I do a PTT On for input; Do all this with wildcard signals via the 50 pin t...

kb4mdz

Anyone play with the SLR Series of repeaters and can expound on them? I've been asked about them, but don't know any more than specs & brochures & such on MOL. As such, SLR1000 - one to 10 watts, very compact form factor. SLR5000, up to 50 watts, 1 RU high. SLR8000, up to 100 Watts, looks si...

kb4mdz

I do a lot of these; been using Bogen CSD2X2VRU; 2x2 square, up to 4 watts via rotary switch on back-can; recessed volume control on face. Connect to proper transformer wires, set wattage switch & drop it in place of a tile. Tho I often set front panel @ max, and put a Brother label over it with...

kb4mdz

Do you have a way to check the level of the transmitted PL on the GM300? Or check what level of PL deviation the repeater needs? (tho, that's getting far afield in terms of ease of checking these things out)

kb4mdz

Flogging. In the Town Square. With 3 foot sections of 7/8s hardline.

And forced to eat a printed copy of R56 Site Standards Manual, page by page.

kb4mdz

A crystal wouldn't do for stabilizing the frequency when the battery voltage drops. To stabilize the battery voltage, you would use some sort of voltage regulator to bring the supply voltage for the oscillator circuit to something lower than the 12 v supply. Now, the following is just off the top of...

kb4mdz

JPS NXU-2?

kb4mdz

NSPD wrote:Some clear Visars for the weekend...

One shop's salesman used to refer to the regular Visar as 'a turd with an antenna'. I will grant, the clear versions are kinda cool, tho.

kb4mdz

If you just want to do RX audio, you can do a couple different things: 1) Take your RX audio off the speaker leads, accessory connector 1 & 16; this will be after the Volume control, and certainly no impedance matching between the speaker output circuit and the (theoretically ) 600 ohm impedance...

kb4mdz

I'll restart typing since I started without fully reading. Dummy me. :-D Yes, you can, but you'll basically need the 'tone remote module' aka tone remote adapter, like a CPI TTP-1 or MR2 http://www.cpicomm.com/ttplitwpics.pdf00; it says that the correct cable is supplied with the MR200. Look on your...

kb4mdz

OK, then your meter TRN5080 should indicate by some reading that the crystal is oscillating at its fundamental frequency, and maybe be being multiplied up to the L.O. injection frequency. Was the RX working on its original frequiency before you started? How far a freq. change is this? Have you tuned...

kb4mdz

Couple tips to try: (I can't remember the IF of an MSR2000; maybe something like 10.7 MHz? ) Can you get the receiver to quiet by (figuratively) slamming a signal at the IF frequency at the Receiver? Or, can you measure the injection frequency after it's been multiplied up from the channel element? ...

kb4mdz

no, talking about my sister-in-law's butt is not appropriate here, RFguy.

kb4mdz

No, I've got some leased lines that I need to research a replacement for. Already been told informally by techs that support will be ending, sooner than I want. That's OK, tho, because If I can put in a wireless system that I maintain, I won't have to depend on telco's 9-5 response time & lack o...

kb4mdz

madfrenchie -

I think I have copies of the manuals, if you would like me to pdf them & send them. Give me a couple days to look.

kb4mdz

What condition are you using to activate Pin 4 to Low? Quick-Call? MDC? And your Alarm Re-Arm may not be the right thing, I use Permanent External Alarm on my setups, for what that's worth. Check your timing parameters on teh Accessory Configuration tab. Mine defaulted to Accessory Power Up Delay of...

kb4mdz

I'll tell you what NOT to get; anything that runs in 27 MHz CB frequencies. Very good friend told me of one system, same application, and the firm that put it in, well, they don't seem to understand radio at all. LOS, with some trees? Might be able to get away with some 900 MHz FHSS radios; non-lice...

kb4mdz

OK, first look at what pins in the Accessory connector are used; if it's acting as a 'black box', you can still guess what is Mic Audio, PTT, RX Audio, maybe a COR, from the connector. The last shot with the wires soldered to the inside of the accessory connector can help you deduce something, too. ...

kb4mdz

Ahh, the tyranny of a large installed base of less-than-optimal technology. Kinda like the QWERTY typewriter layout. I gotta admit, he's got a point about the bundle that is currently used; putting 'curves' into the coax. My solution for fineshot1 would be to open the package of cable as one of the ...

kb4mdz

To quote a previous boss: "That doesn't make any sense. Really?" All the CDM1250's I've seen alert right after the 2nd tone, don't wait for the carrier to drop. Hmmm, what's the firmware version of the radio? I have about 28 fire station alerting systems under my care, and a large assortme...

kb4mdz

Well, I had a long shpiel on this, then it dropped. MDC1200 is a form of (low speed) data communications on a radio channel. Stands for Motorola Data Communications, 1200 bits per second (there was an older version, MDC600, for yes, 600 bps). Probably one of the most common uses is PTT ID or ANI; ea...

kb4mdz

Bought the 2 manuals off eBay, received them this past Saturday.

kb4mdz

I did find that one; already archived on my disk.

I'll admit, I'm not even sure of the title. Been a while since I saw the reference that I took it from.

Thanks for looking.

kb4mdz

CDM1250 only has 4 pins available; that's why you can only got to 15 channels.

It's kinda weird. I always have to go back to my notes from the previous effort to do a new one.

kb4mdz

Bumping this old thread; FMROB, I seem to have come across a similar thing. I've got a UHF CDM1250, first I had it on a CPI TTP-1; worked fine. But, I thought I have 16 channels, I want to see if I can use them all; had a Moto L3276 sitting around; wired up a cable, attached it to the radio (only pu...

kb4mdz

Anybody have a e-copy or paper version of the Moto "Stat-Alert Signalling" manual?

If it's paper and you send it to me, i'll scan it to a file & send it back with the original.

Thanks!

kb4mdz

WHo set it up? AT&T? A real 2-way tech? An IT goober?

kb4mdz

Why? What's wrong with it? Is there anything right about it? What's the interface into your exisiting system?

kb4mdz

Anyone have a chance to touch the AT&T PTT product yet? The idea has been thrown at me, but right now it's just an idea. I want to talk to someone who has been involved in setting it up or troubleshooting it when it goes face down.

kb4mdz

Yup. That's it. When it goes to 4 Wire; Radio RX audio moves to the outside pair (wires 1 & 4 of a 4 wire jack) and TX is on the inner; (2 & 3).

problem solved. All it took was a couple banjos & alligator clip leads & a fresh head.

kb4mdz

Friday afternoon tearing my hair out. Have (2) of the L3276 TRA's and I've been using them to test out a CPI TR10-16F-FD (which includes it being 4Wire). Even tho the 3276 has just a single DIP switch section, SW3-3, to go from 2Wire to 4 Wire, it doesn't seem to switch into 4 Wire mode. Thing works...

kb4mdz

1) Yes, it can be changed in frequency. You'll have to get a new Transmit crystal and a new Receiver crystal. 2) A leeeetle more complicated. Legally, no. And its "5KHZ Narrowband" is compared to the older "15 KHz wideband"; whence the transition from 15 KHz to 5 Khz was a long t...

kb4mdz

Yes, you set up channel steering using the CPS, using the programmable pins as inputs, and setting them as Channel Steer 1, Ch.St. 2, Ch. St. 4 (it's binary), and then everything else, PTT, TX Aud, RX Aud, & COR/PL if your using it. All defined in the Accessory Pins tab of the Radio Configuratio...

kb4mdz

Hmmm, good thought, Bob M.

I'll worry about it week after next. For now, I think I've forestalled nuisance alarms.

kb4mdz

Yeah, think I'm gonna have to tie a P.S. status line into site monitoring, maybe the +5VDC, to try to track things. That, and some delay on the PA Fail; it always self-clears in 3 seconds. Never more, never less. Yup, I had found them alright, you're right, and they were blanked, too. Another sign o...

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