| Author |
Message |
    
Canon5218
New member
Username: Canon5218
Post Number: 2
Registered: 8-2006
| | Posted on Sunday, August 13, 2006 - 11:12 pm: | 
|
Got a new Cobra 148GTL and I am having some issues out of it on sideband. I am having real bad audio issues only on sideband. Anyone know of any common issues requarding this radio and sideband? It seems as if I can not get "clarified" onto a signal...almost seems like it is off freq a tad. Havent had it on a counter yet though. Running 100% stock and have tried the TruckSpec TS82FL and the K30 both with same results. Perfect SWR. |
Yankee
Senior Member
Username: Yankee
Post Number: 1276
Registered: 7-2003
| | Posted on Sunday, August 13, 2006 - 11:58 pm: |
|
Is this the China made Cobra 148-GTL or the older original model made by Uniden for Cobra?
Carl CEF-357 |
Slugo4449
Intermediate Member
Username: Slugo4449
Post Number: 101
Registered: 7-2004
| | Posted on Monday, August 14, 2006 - 1:10 am: |
|
I have only heard of issues with the versions with "soundtracker".
Try using a search engine on the internet and see what you come up with. |
Canon5218
New member
Username: Canon5218
Post Number: 3
Registered: 8-2006
| | Posted on Monday, August 14, 2006 - 7:07 am: |
|
Yankee...yes this is the NEW! 148GTL.
Slugo...Have searched my butt off already.
Found a clarifier mod that seemed like it would help but I want to figure out whats going on first. |
Yankee
Senior Member
Username: Yankee
Post Number: 1278
Registered: 7-2003
| | Posted on Monday, August 14, 2006 - 10:33 am: |
|
I know very little of theChina made Cobra 148-GTL, only what I've seen posted, here on the Copper Forum, that after having several parts changed, it's not a bad radio.
Try doing a search here on the forum and you might come up with what's been posted about the China made Cobra 148-GTL. |
Hotwire
Senior Member
Username: Hotwire
Post Number: 1646
Registered: 1-2005
| | Posted on Monday, August 14, 2006 - 1:00 pm: |
|
Hey Canon, I have 2 soundtracker 148's and 1 china 148 GTL. I took them all to my tech who does awesome work on Cobra sidebanders and they now kick butt!
Each one of these stock fresh out of box Cobra sidebanders did fine on AM but the performance on SSB was TOTALLY UNEXCEPTABLE! Communications on SSB was basically next to impossible! Not until a professional alignment was done with all the proper test equipment did they work on frequency and with correct level of modulation. Find a tech who knows his stuff on SSB radios and get an alignment done to your 148 and it will work just fine! |
Canon5218
New member
Username: Canon5218
Post Number: 4
Registered: 8-2006
| | Posted on Tuesday, August 15, 2006 - 7:20 pm: |
|
I guess my next question is this. Does the NEW 148GTL (China Made) have the RCI, MB or MMB 8719 chip.
Does all of the 8719 chips modify the same? In reguards to freq. addition that is.
I have searched the forums and found that Patzerozero was pretty much exclusive on saying that the MMB and the RCI mod the same. Help me make sense of this guys. |
Yankee
Senior Member
Username: Yankee
Post Number: 1283
Registered: 7-2003
| | Posted on Tuesday, August 15, 2006 - 9:28 pm: |
|
It's the MB and RCI-8719 PLL that will mod the same. From what I've read here on the forum it's the MMB-8719 PLL, that will only do part of the channels.
As far as which PLL is in the new China 148-GTL, I'm not sure, but they can be modified for extra channels. |
Hotwire
Senior Member
Username: Hotwire
Post Number: 1650
Registered: 1-2005
| | Posted on Wednesday, August 16, 2006 - 7:26 am: |
|
Not sure which one it is in the new GTL model. Later today if time allows I'll pop mine open and see. My 148 soundtracker does have the MMB chip and I failed at reprogramming it for extra channels using the MB chip mod. Never could find a mod for the MMB chip. I have been told that MMB just may be UNreprogrammable. Don't hold me to that though. |
Canon5218
New member
Username: Canon5218
Post Number: 8
Registered: 8-2006
| | Posted on Wednesday, August 16, 2006 - 9:40 pm: |
|
From what I am reading the MMB chip is non programmable. I Beleive the new 148 has the RCI...need to pop my top. |
Bc910
Advanced Member
Username: Bc910
Post Number: 765
Registered: 7-2004
| | Posted on Wednesday, August 16, 2006 - 9:56 pm: |
|
I have hear that you can't mod an mmb soooo many times yet I have done it soooo many times! What gives? I have a ST sitting in front of me now that isn't modded yet but when I read this thread (just to make sure I wasn't going crazy) I crossed pin 10 with gnd and boom UP 64 CHANNELS! Don't believe the MB hipe! THE MMB IS MODIFIABLE! Now on the other hand, it may not be AS modifiable (I can't remember, I think it is tho) but it is modifiable! I swear!
BC |
Canon5218
Junior Member
Username: Canon5218
Post Number: 12
Registered: 8-2006
| | Posted on Wednesday, August 16, 2006 - 10:31 pm: |
|
I hear ya BC! Good to clear that up. Next question is does anyone know 100% sure if the NEW 148GTL has the RCI or MMB or MB? |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3146
Registered: 7-2004
| | Posted on Thursday, August 17, 2006 - 7:12 pm: |
|
MOST of the new china 148's use the rci8719. MOST malaysia 148's used an MB8719, later ones used the MMB9719 which is only partially modifiable-depending on how the pins were set at the factory. mods on them can vary!
MOST ST-version 148's used the MB8734 which needs to be swapped to an MB or RCI8719 for ANY mods.
it depended on the date of manufacture & which plant it was built in. i guess they finished up with the prior chip before moving on to the next one, which is why some 148's have a chip you wouldn't normally associate with that version. |
Canon5218
Junior Member
Username: Canon5218
Post Number: 13
Registered: 8-2006
| | Posted on Thursday, August 17, 2006 - 8:42 pm: |
|
I guess this is a "pop the top" and look kind of answer that only me can answer 100% positive. Hmmmm........time to take it out of the truck and tear in...hehe |
Whiskey_river
New member
Username: Whiskey_river
Post Number: 2
Registered: 7-2008
| | Posted on Sunday, July 20, 2008 - 1:00 pm: |
|
Not trying to start war here guys but i have a new 148 GTL-D China built radio ( this was taken off of the back of the radios data plate ) and it seems to be really great SSB radio. I have even had a few to tell me that it sounds as good as my FT101-EE and just a very little drifting when cold. It's stone stock with just a basic tune done by myself. I dont know, maybe i got a good one, Got it off of a trucker for $100.00 never used in the factory box. |
Sitm
Intermediate Member
Username: Sitm
Post Number: 490
Registered: 1-2004
| | Posted on Monday, February 10, 2014 - 8:30 pm: |
|
I have two operating stations here at the qth and for 11 meter I have two Cobra 148 models, one 148 gtl and one 148 gtlf with frequency counter. Both have been set up with modulation kits. I get great reports on both of them and am very satisfied. I have to admit I don't generally use the ssb on them due to the fact that I usually talk to my radio friends that are not licensed operators on 11 meter. |
Press_man
Advanced Member
Username: Press_man
Post Number: 745
Registered: 5-2008
| | Posted on Saturday, February 15, 2014 - 6:50 pm: |
|
Had a 148 on the bench back in like 1992. Great radio! That thing had 120 channels + SSB. It had strong audio and a descent sweep. Put it on the scope and set everything. I tried to buy it from the guy but he passed.
73 Pressman
|
Rockin_horse
New member
Username: Rockin_horse
Post Number: 2
Registered: 4-2014
| | Posted on Tuesday, April 29, 2014 - 4:22 pm: |
|
Is there a way to tell from the serial number where and when a 148 was made. |
