XPR 5550 Out of Band

[slapshot0017]

Ok so I have been scouring the internet and have found only this thread...
Looking for someone to test out-of-band mod with

I am kind of getting a half answer from this on the method to use. Does anyone on here have a proven reliable method with CPS 11?

Any help would be amazing! Thank you!

 

[N2ICV]

This worked on CPS11 http://digitalham.info/codeplug/limits/

 

[slapshot0017]

Ok is this safe? The band limits go from 450-512 to 50-999. I just wanted it to go down to 420. So I'd have a 420-512 split.

 

[N4KVE]

In my case, that opened up my 6580 for 902/927, but not UHF. I used the typical hex edit method for UHF to get my 450-512 XPR6300 to go down to 440. I specifically asked EYF about this, but he said his mod did not cover the UHF band.

 

[kayn1n32008]

Ok is this safe? The band limits go from 450-512 to 50-999. I just wanted it to go down to 420. So I'd have a 420-512 split.

Why 50-999? The radio likely will not go much past 440 if it even gets that far. Unless you need T-band coverage, you would be better off selling that radio and buying an 'R' split if you want to use it below 440.

 

[slapshot0017]

Why 50-999? The radio likely will not go much past 440 if it even gets that far. Unless you need T-band coverage, you would be better off selling that radio and buying an 'R' split if you want to use it below 440.

That link breaks the code plug to go out of band... I plan on buying an XPR 5550 UHF R2 450-512 and modifying it to go out of band to at least 440 or lower if possible. The 7550 that I own does the whole UHF band. I need a mobile that will recieve the full PS UHF R2 range and amateur stuff...

I asked if it was safe to put the code plug in the radio to people who have done it or any other methods like the Hex edit which I've done for the ASTRO 25 CPS...

 

[kayn1n32008]

I plan on buying an XPR 5550 UHF R2 450-512 and modifying it to go out of band to at least 440 or lower if possible

if it will go to 440MHz or lower, it will likely require retuning, and will likely 'lose off the top' to get the radio to operate lower in the UHF band.

I need a mobile that will recieve the full PS UHF R2 range and amateur stuff...

Yea, that's going to be tough to find.

I asked if it was safe to put the code plug in the radio to people who have done it or any other methods like the Hex edit which I've done for the ASTRO 25 CPS...

Lol... Easy on the 'tude...

 

[N4KVE]

It is well known the 450-512 XPR series of radios will easily go to 440 w/o any retuning necessary. Simple hex edit. Trouble is, you can never read the radio, or you will lose all the freq's below 450. You get around this by reading the saved codeplug, making any necessary changes, programming them into the radio, & saving those changes to the codeplug. Next time you need to make changes read that saved codeplug, & repeat the above steps.

 

[slapshot0017]

if it will go to 440MHz or lower, it will likely require retuning, and will likely 'lose off the top' to get the radio to operate lower in the UHF band.

Yea, that's going to be tough to find.

Lol... Easy on the 'tude...

There is supposedly no need for retuning just to go down 10 mhz,

The XPR 5550 UHF R2 does just what I need,

and no tude just stating the purpose to my post...

 

[slapshot0017]

It is well known the 450-512 XPR series of radios will easily go to 440 w/o any retuning necessary. Simple hex edit. Trouble is, you can never read the radio, or you will lose all the freq's below 450. You get around this by reading the saved codeplug, making any necessary changes, programming them into the radio, & saving those changes to the codeplug. Next time you need to make changes read that saved codeplug, & repeat the above steps.

So do I pretty much just mimic the ASTRO 25 Hex edit?

 

[N4KVE]

Basically the same process.

 

[slapshot0017]

Alright sweet! Now I just have to save up for the radio! Thanks Moonboots.

 

[nr6e]

It is well known the 450-512 XPR series of radios will easily go to 440 w/o any retuning necessary. Simple hex edit. Trouble is, you can never read the radio, or you will lose all the freq's below 450. You get around this by reading the saved codeplug, making any necessary changes, programming them into the radio, & saving those changes to the codeplug. Next time you need to make changes read that saved codeplug, & repeat the above steps.

Completely new to DMR and Motorola radios here..... I went and bought an XPR 5550 used off eBay and then realized that the radio supports 450-512 Mhz and not the (HAM) 440 frequencies I was intending on using. I'll be reading up on what can be done to mod / reprogram the radio.

 

[slapshot0017]

Completely new to DMR and Motorola radios here..... I went and bought an XPR 5550 used off eBay and then realized that the radio supports 450-512 Mhz and not the (HAM) 440 frequencies I was intending on using. I'll be reading up on what can be done to mod / reprogram the radio.

Very nice. Welcome! I found that this: http://communications.support/archive/index.php/t-5594.html works perfect. Follow the instructions exactly, but just change the 900 meg stuff with the UHF frequency desired.

 

[nr6e]

Very awesome, thanks!!

I'm still waiting for Motorola to get me all set up with online access to purchasing the CPS software, I also need to order the programming cable as well, but once that's all set, I will definitely follow this to a T

Thanks again :-D

 

[N4KVE]

Just buy the proper band split radio for the band you intend to use. If you're going to use ham 80% of the time, & "T" band 20%, get a low split radio, but if you intend to use 500 mhz 80% of the time, & ham 20%, then get a high split radio. These radios will go about 10 mhz out of band before performance starts to suffer. And a notice to all, if you are purchasing a radio on an auction site, read the fine print, & know what you are buying.

 

[nr6e]

Just buy the proper band split radio for the band you intend to use. If you're going to use ham 80% of the time, & "T" band 20%, get a low split radio, but if you intend to use 500 mhz 80% of the time, & ham 20%, then get a high split radio. These radios will go about 10 mhz out of band before performance starts to suffer. And a notice to all, if you are purchasing a radio on an auction site, read the fine print, & know what you are buying.

I made a mistake when I bought the radio. I'm trying to avoid buying another radio. I agree with what you say but I can't go back in time and change things

 

[N4KVE]

I made a mistake when I bought the radio. I'm trying to avoid buying another radio. I agree with what you say but I can't go back in time and change things

Since low split radios are much more common than hi split radios, put out an ad looking for someone to trade you a low split for your hi split radio. Many times you will see a hi split radio going for $30 more than an identical low split radio because of this.

 

[nr6e]

Hm, good idea now I think of it

 

[Skypilot007]

Very awesome, thanks!!

I'm still waiting for Motorola to get me all set up with online access to purchasing the CPS software, I also need to order the programming cable as well, but once that's all set, I will definitely follow this to a T

Thanks again :-D

Don't forget to get the free entitlement key to enable wide band programming while your at it. You will want it for the 440 Ham bands if you intend on using the radio there.