| Author |
Message |
    
615_ri
Member
Username: 615_ri
Post Number: 56
Registered: 5-2006
| | Posted on Sunday, January 20, 2008 - 9:55 pm: | 
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I have an rci 2950 that I recently bought. Ill give you a quickie about the radio. It can dead key 2 watts on low or 10 watts on high and swing 50 on am. On ssb it will swing also 50. it has talkback installed also. My question is as followed. I have the 2950 service manual. I tried the external s meter. Running a wire from the negative side of d14 diode. I did it from the top of the board, and soldered the wire to the neg side of the diode which has the black stripe on it. That wire in turn runs out the back of the radio and hooks up to an old cobra s meter I have. The only problem is, it does not work. My meter on the radio works fine but I do not like the digital lcd type. D14 was located right beside one of the pots. the meter is from an old cobra 29 I had laying around, and I know the the meter works fine.. also, do you think I can get some more power on ssb? I never tried to turn the power pot for ssb. The radio has a 12 volt lead going to tp7, alsong with the mod limiter removed, thanks
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
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Tech291
Moderator
Username: Tech291
Post Number: 494
Registered: 11-2004
| | Posted on Monday, January 21, 2008 - 7:24 pm: |
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615_ri,
It may be a simple fix.the banded end of the diode denotes the positive(+)end,try moving to the other end of the diode,one other thing could be the internal resistance of the meter fron the cobra may be to low for the detector section of the 2950.
tech291
cef291/cvc6
kc8zpj |
615_ri
Member
Username: 615_ri
Post Number: 57
Registered: 5-2006
| | Posted on Monday, January 21, 2008 - 11:45 pm: |
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i just switched it over, no luck
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
|
Inspector104
New member
Username: Inspector104
Post Number: 2
Registered: 12-2007
| | Posted on Thursday, January 24, 2008 - 1:16 am: |
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This is the info I have...Solder the positive side of the meter to the banded cathode-end of D-14, and the ground-side of the meter to a circuit board ground-trace. With the RF gain all the way up, find a close-by strong signal and adjust VR-1 for S-9 on AM. SSB mode is adjusted by VR-2. |
615_ri
Member
Username: 615_ri
Post Number: 58
Registered: 5-2006
| | Posted on Thursday, January 24, 2008 - 3:00 pm: |
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i need to find a workman md4 meter. also i got it working, would i meter from the galaxy 959 work with it?
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
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Tech808
Moderator
Username: Tech808
Post Number: 15144
Registered: 8-2002
| | Posted on Thursday, January 24, 2008 - 4:26 pm: |
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615_ri,
To find one go to: www.google.com and do a search for: Workman MD4 Meter
But remember just using an S-Meter to give someone a S-unit report can be WAY OFF depending on your station setup, location, antenna, coax and conditions.
I personally just give them a Signal report of exactly what I hear at my station and that is always 100% correct. 
Lon~Tech808
CEF#808/HAM#001/CVC#002
Tech808@copperelectronics.com
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615_ri
Member
Username: 615_ri
Post Number: 59
Registered: 5-2006
| | Posted on Sunday, January 27, 2008 - 1:00 pm: |
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tech 808, i did search on the meters, i cant find any place that sells one
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
|
Goat373
Intermediate Member
Username: Goat373
Post Number: 357
Registered: 3-2005
| | Posted on Sunday, January 27, 2008 - 8:57 pm: |
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the LDG FT-Meter would also work for you, they are very nice.
Brian
CEF574
KI4LXH
"If it aint broke, dont fix it....and lord dont throw no bricks!"
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Goat373
Intermediate Member
Username: Goat373
Post Number: 358
Registered: 3-2005
| | Posted on Sunday, January 27, 2008 - 11:30 pm: |
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I just did this mod to my 2970dx-150.
I went with a different setup though, I made one of the preexisting holes in the back plate a little bigger and mounted a 1/8 female mono jack there. I then wired the collar of the connector to the ground on the circuit board and the tip to the cathode side of d-14...which by the way, is not marked in the newer 29 series radios. Its just to the left of the two potentiometers (vr-1 and vr-2) listed in the mod, and they "are" marked.
Works like a champ, and I can hook up different meters as i feel like changing things up or run it without the meter and use the internal "Bar" style meter the radio utilizes.
Brian
CEF574
KI4LXH
"If it aint broke, dont fix it....and lord dont throw no bricks!"
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615_ri
Member
Username: 615_ri
Post Number: 60
Registered: 5-2006
| | Posted on Tuesday, January 29, 2008 - 7:57 pm: |
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im still trying to find an md 4 meter i cant find one ne where
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
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Tech808
Moderator
Username: Tech808
Post Number: 15178
Registered: 8-2002
| | Posted on Tuesday, January 29, 2008 - 8:24 pm: |
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Go to: www .google.com and do a SEARCH for:
MD4 dB/S Unit CB Station Meter
Lon~Tech808
CEF#0808/HAM#001/CVC#0002
Tech808@copperelectronics.com
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615_ri
Member
Username: 615_ri
Post Number: 61
Registered: 5-2006
| | Posted on Thursday, January 31, 2008 - 12:51 pm: |
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i called ldg, they told me the meter would not work, i would prefer the ldg over the md4
813 Rhode Island
CEF#970
RCI 2950
Fatboy 2 Pill @ 15vdc
Voyage VR9000
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