Batboard

RF_Burns

Thanks Circlebat, You can't just hook the Peltor headset to the Motorola radio, the main reason is the Peltor headset uses dynamic microphones which have a very low output level. Peltor supplies an adapter for many radios which has a PTT button on it and a circuit board to adapt the microphone level...

RF_Burns

Further to the above post, I have figured out the Rx audio and PTT, but I have no microphone audio.

RF_Burns

I have a Peltor headset wired to a CDM1250 (Motorola content) through a Peltor FL050C0226 pump panel adapter. This adapter is the same as a portable radio adapter with the PTT button, but has an Amphenol 6 pin military style connector. The wires were pulled off the panel side connector by a mechanic...

RF_Burns

I had the failure at 75% on an XPR7550 while programming on-site this week. I thought it was just another bug in the USB communications so I didn't want to mess with it on the road. Customer is bringing it by the shop for programming using another computer. I'll try the firmware update trick on it. ...

RF_Burns

Thanks Bill, Yes I can setup a button that will access the Call List. From there I need to select from "Sel Call, Radio Check, or Call Alert" (even though I have only Call Alert checked in the Signalling setup). Then I can scroll through the call list. Strange I can do this on a HT1250 but...

RF_Burns

I'm not sure what I am doing wrong here. I'm trying to program 3 digit DTMF strings into several programmable button. The customer currently has a CDM1250 and a HT1250 doing this, but I can't get another CDM1250 (I tried 2 so far) to do this. I can program it exactly the same, but the programmable b...

RF_Burns

I have a customer using XPR5550 mobiles and HMN4098 handsets. Several of the vehicles require an extension cable from the radio to the handset. no problem.. ordered up several PMKN4033 10ft mic extension cables... no good... even though all the pins are populated, there are only 5 connected so the h...

RF_Burns

I haven't tried this with a 5350 yet, but I did have some issues with a CM200D in the same application. In the old days of M208/216/120 and GM300's etc Pin 8 was the default COR/PL detect Pin. With the CM200D however you can set Pin 8 for this function, but nothing happens. Checked 3 radios new in b...

RF_Burns

Guys, I know this is an old thread, but I was wondering if there is any issue with the LVD (Samlex BG-40) having "reversed voltage" across it. In other words, what happens if the MTR voltage is higher than the SEC2450BRM charger? (Someone pulls the plug on the SEC2450 etc). The BG40 uses a...

RF_Burns

We have experienced random lockups of the control channel on our ConnectPlus system. A reboot of the repeater gets it back on on-line. Not sure if its the Ethernet that locks up or.... It had been going 6-8 months between issues, however last time we swapped repeaters and the second unit locked up w...

RF_Burns

Ok, works as designed, not as expected.
I'll try the "BLANK" trick

Thanks

RF_Burns

Is there a way to get rid of the last talk-group and only program the 2 conventional channels on a M1225-LS mobile? When I get down to one talk-group left, the delete talk-groups button disappears, I only need the two conventional channels and having a talk-group there will just confuse the operator...

RF_Burns

Sorry Jeff, I got your handle mixed up jmfirefighter20.

My units all have dates of Nov.2011 inside the case, except for the spare which was purchased later. You should be OK with your 2010 units I'm thinking.

RF_Burns

Jeff, I recall you had the same issues. Did you manage to get them resolved? The initial 3 units have been good since I sealed them with this Hylomar sealant. The rest of the units which never gave problems, were perfect inside when we opened them.... but they have a much better O ring seal. On the ...

RF_Burns

Just an update to our PTP600 moisture issues. We took down the balance of our PTP units and opened them up. They were all clean with no trace of moisture, only the three units were giving us issues. On closer examination the rest of the units had an obviously different "O" ring seals aroun...

RF_Burns

We transferred the existing phone interconnect from the old analog repeater to the Trbo when the phone interconnect feature became available. It was a Connect Systems I believe.

RF_Burns

Thanks for that quick reply RFguy.

Product support wasn't sure about the feature licence for the second repeater. Maybe I'll order it without first and try it!

escomm, Thanks for that info. The phone interconnect is rarely used in this application.

RF_Burns

I have an XPR8300 with a digital phone interconnect license allowing incoming and outgoing calls on one time slot. We want to add a second XPR8400 repeater in an underground area where signal is poor and IP-site connect them. Question is, will the phone interconnect work across to the remote site? D...

RF_Burns

Even if the ODU and antennas are at the same elevation, the natural cable drape on the ODU forms a drip loop. One would hope the factory would not try to convince us the water came in through the connector This is exactly what Cambium is telling me. Take a look at the photo links in my message on M...

RF_Burns

Joshua, Read my recent issues with PTP49600 equipment here: http://batboard.batlabs.com/viewtopic.php?f=10&t=107550 My issues seem to be the case seal leaking and water gets inside. The links will go along fine then suddenly the H/V will go high or low (indicating a poor signal level in either H...

RF_Burns

Sorry, I didn't want to upset the forum, I'm not part of the clique here, but knowing a few guys on here have these things I wanted my observations to get noticed. These things are $7,000 an end and failing in under 3 years. Its obvious that the hollow rubber O ring seal is relaxing over time (case ...

RF_Burns

Here is some further observations on my PTP600's failing due to water damage. These units were new in 2011 with the first failure being in Dec 2013. We found water in both N connectors so we swapped out the faulty unit with the spare and installed new jumpers to the antenna. By mid February the spar...

RF_Burns

Silicon tends to have a short effective lifetime in my experience. A polyurethane sealant would likely work better, but you would never get the case apart again. I'd run a split loom or split hose around the top and side edges, but at the center top there is a large hoisting eye. The casting of this...

RF_Burns

Since it was out of warranty and the water damage was very evident at the ports, we took it apart. Its very evident that the case seal leaked in my opinion. Looking at the way the case is constructed, I'd say water trapped in the case seam, but still outside the seal, would freeze and thaw allowing ...

RF_Burns

Hi All, Just had a PTP49600 (connectorised) fail after about 3 years, replaced with spare now all is good again. However looking at the connector inside it appears corroded. I tried to remove the caps over the unused inputs and found them to be seized. Finally got one off and found the threads and i...

RF_Burns

At first I did not have 5V on any of the programmable I/O lines with Pin 19 programmed for Channel Steering 1 (Active low). So I loaded up pins 20,21,22,& 24 with the balance of the channel steering lines and voila! I now have 5 volts on all lines and channel steering now works! I then removed a...

RF_Burns

Yes, I have done it on the repeater models as well with no issues.

Radio Firmware: R01.09.10, Codeplug 11.00.14.

RF_Burns

I tried to setup channel steering on an XPR4550 with no luck. With previous models (CDM's Radius etc) you would just pull the programmed pins to ground to binary to assert channel steering but this does not work (no voltage even present on the programmed pins). I tried applying 5v to a programmed pi...

RF_Burns

Update: we did a firmware update to the latest firmware and so far we have phantom power on the Tx audio pin.

RF_Burns

I'm scratching my head over the phantom power that should be available on the Tx audio pin (11) on the Trbo accessory connector. There is power there to power a remote microphone sometimes, but most of the time there is no power there. The fact that there is power there sometimes tells me the circui...

RF_Burns

Bill, I should have been clearer and said, up till now, previous systems I have installed have been T1. This is the first voted system I've done with Ethernet, first with Rad Muxes and after upgrading to simulcast with Harris. My settings were the same except for COR polarity and I had 60ms of Conso...

RF_Burns

I've always used E&M and never thought there would be a large delay, but up till now its be T1.

I've heard some transmissions getting cut off periodically tonight. I'll have to add 2175Hz filter on the Rx as I believe audio is faulting the pilot tone detector in the SVM modules

RF_Burns

Just a followup on this issue. I programmed the MTR's at the last site today for Pilot Tones and went back to the HUB and switched the voters over.. IT WORKS!! WOO HOO! Out of about 20 keys on each channel, it only voted incorrectly once, and to be fair the site it voted is still pretty clear and it...

RF_Burns

My little test portable is a tad shy on deviation, when users are talking the yellow is flashing constantly with red peaks. I heard back from Harris today who said "Your voter is receiving the E&M signal before there is any audio with which to compare - so it is trying to vote by comparing ...

RF_Burns

I checked the equalization settings on the MTR2000 stations, they are actually set for -6dbm (voice) and 0dbm at 2500hz, so in effect there is +6dbm of Eq in place. I should actually compensate for this in the SNV12 cards or redo the MTR and SNV settings. I also checked the settings of the VF-40 aud...

RF_Burns

thanks Bill,
I believe I found the post that you are talking about from June of 2010.

In my minds eye I think the equalization is set to max attenuation above 3khz in the MTRs and I never gave this any thought. I'll work on this and post my findings.

Thanks again

RF_Burns

Bill, Correct, we are using Ethernet. The Harris specs have the VF-40 audio cards rolling off steeply above 3khz and the VF25's I have used in T1 links say the same. I have seen this on those systems but maybe once or twice in 10 times. Benny says the SNV12 sees everything above ~2khz as noise (whic...

RF_Burns

Hello, I have a 5 site, 2 channel simulcast system using Harris Synchrocast 3 with NetXpress and NetXpress LX Muxes with VF-40 E&M audio cards over Motorola 4.9Ghz PTP600 links. The repeaters are MTR2000. Everything works great except 6-7 times out of 10 it will not initially vote to the best si...

RF_Burns

I should have said this was in VHF. We tested the radio vs one of their HT1000's, Tx power and Rx sensitivity were the same, XPR maybe a tad better Rx. I suspected the GPS combo antenna so I sent them off with a couple HT1000's antennas to try on the XPR's,(Motorola doesn't show a non-combo antenna ...

RF_Burns

What is everyone's experience with XPR portable radio's range in analog mode? We are getting customer complaints that the range in analog mode is very poor compared to their other radios. They want to migrate to digital at some point, but can't change all units at once. But with the poor range, they...

RF_Burns

Bill, You must have a better manual than my Field Service Manual, it only labels C2 & B21 as a Open Collector Output, Which would be great if I was pulling a positive to ground, but I need to pull a negative voltage to ground in this case. An OCO NPN opto transistor won't do that unless I can co...

RF_Burns

B3/C3 works with the Aux I/O board installed.

Guess I'll be making up an opto-isolator circuit and using C2.

RF_Burns

Yes I ohmmetered across B3/C3 and got nothing, and tried 3 stations incase there was a fault in the circuit but still nothing. I have the installation and field service manual. I have one station with the Aux I/O card, so I'm going to test it with and without the I/O card tomorrow.. err today. I'll ...

RF_Burns

The C2 works fine as far as COS/PL Detect. Nothing at all from B3/C3 in any measurable form.

RF_Burns

Thanks Bill, But I'm thinking the relay for B3/C3 is on the Aux I/O card as I don't see an actual relay on the TTN5067C 4 wire card. There are 4 opto isolators on the card, but if B3/C3 was an opto isolator, I'm thinking it should show me which (B3 or C3) is the emitter connection and which is the c...

RF_Burns

I have a number of MTR2000 repeaters with TTN5067C wireline boards that I need to connect to a 4 wire E&M Mux. I know the E&M connections are best done with the Aux I/O board, but I'm looking on the TTN5067 and there are 4 opto-isolators. My question is, are these Opto-isolators used in the ...

RF_Burns

Same charger and uses same accessories (no PS speaker/mic), but I wonder if its the same case? of have they changed the case to make it less durable? Different cable just to make you buy another cable to keep track of! GRRRRRRRRRR! But if it works like a 6350, I have alot of small industrial/commerc...

RF_Burns

Thanks for that info Bob!

RF_Burns

Hi, I know you could order the MTR2000 with an external 5/10Mhz reference option, but it was only a few dollars... so I'm thinking that was to cover the cost of the external connector for the reference input. So I'm wondering if the External 5/10 Mhz reference can be enabled on all of the units, reg...

RF_Burns

Check to see if MDC signalling is enabled on receive. If so there is a parameter called DOS (Data Operated Squelch), its there to keep the squelch closed on systems with the PTT ID at the beginning of the transmission. The default was 1/2 second I believe. If MDC is enabled then turn it off or set D...

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