I have about 5 older railroad CleanCab Spectra radios that are wideband and not able to be upgraded to narrowband.

My question is that since the base radio inside is just a Spectra mobile, can that older wideband brick be swapped out for an ASTRO brick and operate as normal?

Thanks!

Thank you both for input on the oddball issue. I took the MTR and duplexer up to the site today and proved everything out to be working as intended on a real base station antenna. It is indeed the feedline or antenna here at the house that was causing this weird issue. I have an offer from a friend ...

I did, just an hour or so after posting, and you know what.....no issue. It has to be the feedline or antenna. Not sure what it is but at least this it not the rigs final location, just a test location. I did look up some issues possibly with [PIM] and it may be the issue. Taking the rig (in pieces ...

Trying to figure out a feedback issue with an MTR2000.

With a properly tuned duplexer some odd feedback is getting into the RX from the TX.

Disconnecting the RX and leaving it as an open port fixes the issue, so does putting the TX side into a dummy load.

One odd thing I've noticed is that with ...

Thank you for the info. Did per chance you use the same gauge wire for your 50' extension? If so and it still worked, if I can get my hands on slightly larger wire as what's in the remote cable now, my thoughts are if 50 worked I am comfortable in pushing it to 85.

Solder connections? You bet ...

Replace 'exterior' with 'interior'.

I have a situation where I have been asked to install a MCS2000 VHF mobile in a railroad passenger car. The folks would like the control head and speaker at the rear end of the 85 foot long car but have the rest mounted in an electrical cabinet up front at the other end.

I have two issues I am ...

Hopefully this is not a repeated topic, searched but came up blank.

Using several MTS2000s on VHF receiving a transmission with a PL of 146.2 the PL seems to completely overwhelm the voice audio and make the transmission unreadable. If the transmitter's PL is changed up or down the received voice ...

I know, drag out the dead horse...but my issue is a little different.

According to the rear accessory connector diagram for the spectra ( http://www.batlabs.com/images/lmda457.gif ) , it mentions "4"- "Functional only in dash mount configuration, N.C. in remote mount configuration"

I have a older ...