CDM1550 LS+ not unmuting or scanning

PhillyPhoto · Post by **PhillyPhoto** » Fri Dec 15, 2006 5:24 am

I have a CDM1550 LS+ like the title says, and I have thrown some basic conventional freq's into it. I also have an HT1000 with the same frequencies. This morning I threw everything in my car to do some range testing, and noticed my CDM wasn't opening up. I don't have the codeplug in front of me so I'll be going off of my memory, but I remember the muting being set to "STD Muting/Unmuting", and the PL tones are correct. When it's in scan it won't go to any other channel that has activity, and when I'm on the channel that is talking, I see the RSSI go up, but it doesn't break the squelch. I tried a direct frequency and I was less than 10 ft from the antenna and getting a full signal, but still nothing.

When I take it off of scan the red light blinks constantly. I am using an invertor, so I might not getting all the juice to it, but I'm not using it to TX, so I dont really see that as being a big problem.

jackhackett · Post by **jackhackett** » Fri Dec 15, 2006 6:11 am

The inverter could be putting a lot of noise on the power leads. I've seen radios not key up from this, it could affect the receive as well. Try it running off the battery or a good power supply.

PhillyPhoto · Post by **PhillyPhoto** » Fri Dec 15, 2006 6:36 am

I'll try going directly to the battery at lunch today, and see if that helps it at all.

RKG · Post by **RKG** » Fri Dec 15, 2006 7:23 am

Be certain that you have defeated "Passport," by unchecking "Option Board" in all conventional "personalities." In ways I do not begin to undestand, "Passport" seems to take over the whole radio, if invoked.

PhillyPhoto · Post by **PhillyPhoto** » Fri Dec 15, 2006 7:27 am

RKG wrote:Be certain that you have defeated "Passport," by unchecking "Option Board" in all conventional "personalities." In ways I do not begin to undestand, "Passport" seems to take over the whole radio, if invoked.

Yeah I was having that problem last night, but did a search for it, and found out that little secret.

Another thing that irks me is that I don't have the option for MDC signaling on conventional channels. I built the MDC signaling system, but it only lets me use it in the LS trunking section. I could care less about that since I'm not on a LTR system, and would like to have MDC on the conventional channels. I have the tab for it, but the drop-down boxes are disabled.

jackhackett · Post by **jackhackett** » Fri Dec 15, 2006 8:01 am

I know I've put MDC into conventional channels on 1550ls radios, can't remember if the were ls+ or not though..
What model number do you have?

PhillyPhoto · Post by **PhillyPhoto** » Fri Dec 15, 2006 8:14 am

I have a "DP5AN" model

PhillyPhoto · Post by **PhillyPhoto** » Fri Dec 15, 2006 9:08 am

OK, just got back from the trial run. Hooked directly to the battery on the 20A fuse, and tried it and it unmuted fine. When I get home I'll have to see if I can figure out the MDC system. I'm not too worried, because I'm looking to trade for a "AA5_N/AA6_N" model, but I'd like to get this one working so if I can't find a trade I can deal with it for a little bit.

Post by **wavetar** » Sun Dec 17, 2006 6:14 pm

You need a "6AN" model in order to have conventional MDC capability.

Todd