• 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.

QT/DQT question

Status
Not open for further replies.

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
Im trying to program my TK-840 for GMRS usage and I've found a few repeaters in my area the are using DPL tones, one being 054 DPL. But when I am in the programming software I only see (ex. 82.5, D043N, D043I)..

My question is, what is the difference between the N and the I at the end of the number?
and is the TK-840 able to program 054 DPL
 

CommJunkie

Member
Premium Subscriber
Joined
Feb 22, 2008
Messages
904
Location
FM19xr
D043I would be inverted DPL, D043N would be non-inverted DPL. Set your radio to D054N.
 

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
Well thank you very much!! What is the difference between inverted and non-inverted DPL's?
 

ramal121

Lots and lots of watts
Joined
Dec 5, 2008
Messages
1,774
Location
Sonoma, CA
What is the difference between inverted and non-inverted DPL's?
If you look at DPL on a scope, it's kinda a lazy square wave. It has long and short short transitions that represent 1s and 0s.

What the receiving radio will do is use a center slicer, cut the waveform right down the middle, toss out one side and send the other off to be conditioned and then sent to the DPL decoder. Sometimes normal DPL doesn't work with a receiver because the center slicer is throwing out the wrong portion. By inverting the waveform, the correct side is selected and sent to the decoder.
 

ramal121

Lots and lots of watts
Joined
Dec 5, 2008
Messages
1,774
Location
Sonoma, CA
Sure. And here's another weird thing. For every normal DPL, there is an inverted DPL that will also work, it's just a different number.
 
Status
Not open for further replies.
Top