• To anyone looking to acquire commercial radio programming software:

    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

    If you are having trouble legally obtaining software please state so. We do not want any hurt feelings when your vague post is mistaken for a free request. It is YOUR responsibility to properly word your request.

    To obtain Motorola software see the Sticky in the Motorola forum.

    The various other vendors often permit their dealers to sell the software online (i.e., Kenwood). Please use Google or some other search engine to find a dealer that sells the software. Typically each series or individual radio requires its own software package. Often the Kenwood software is less than $100 so don't be a cheapskate; just purchase it.

    For M/A Com/Harris/GE, etc: there are two software packages that program all current and past radios. One package is for conventional programming and the other for trunked programming. The trunked package is in upwards of $2,500. The conventional package is more reasonable though is still several hundred dollars. The benefit is you do not need multiple versions for each radio (unlike Motorola).

    This is a large and very visible forum. We cannot jeopardize the ability to provide the RadioReference services by allowing this activity to occur. Please respect this.

LTR Systems Sounds Like SSB (Single Side Band)

Not open for further replies.
Dec 19, 2002
West of the Muddy Creek, East of the Big Hill.
Here in Fort Collins, CO; I have found an LTR System operating on 152.630 MhZ. Some of the traffic sounds like it is being transmitted on SSB (Single Side Band) possible encrypted.
The not scanner is showing the signal as being encrypted. Some traffic on the system is normal analog.


Forums Veteran
Super Moderator
Dec 16, 2000
Sitting in an airport somewhere
It's speech inversion. The stronger encryption formats wouldn't get passed over an LTR system. The various speech inversion formats fall within the normal voice frequency range and easily pass-through.



Jul 29, 2001
Ottawa, Ont.
I'd go with speech inversion...haven't heard of any ACSSB LTR systems
outside of the 220 band. The fact that "normal" analog traffic is on the
system is also indicative that it's not ACSSB.

Not open for further replies.