| Author |
Message |
    
Audiophile73
Junior Member
Username: Audiophile73
Post Number: 45
Registered: 5-2004
| | Posted on Tuesday, February 01, 2005 - 12:33 am: | 
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Ok I had my tech turn down my radio to 1 watt. I whistle into it and it swings to 4 or so. Is that what it is supposed to do or can it do more. Also when I whistle the modulation goes a little over 100%, when I talk it's uaually around 100. is that good, 1 watt to 4. |
Jon666
Intermediate Member
Username: Jon666
Post Number: 324
Registered: 11-2003
| | Posted on Tuesday, February 01, 2005 - 3:48 pm: |
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what radio is it? |
Tech808
Moderator
Username: Tech808
Post Number: 4714
Registered: 8-2002
| | Posted on Tuesday, February 01, 2005 - 4:06 pm: |
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If it is a Bone Stock radio then yes that could be right.
BUT, it all depends on the following;
#1 ~ What make & model of radio are you using?
#2 ~ Had the Radio been peaked and tuned before you had it turned down or is it 100% Stock from the Factory?
#3 ~ Has your Modulation been adjusted or the Limiter Clipped?
#4 ~ Also why did you have someone turn it down or for what reason?
You want to try and have your modulation PEAK at around 100% NOT swing over 100%.
With MORE information we can try and help you more.
Lon
Tech808
CEF808
N9OSN |
Audiophile73
Junior Member
Username: Audiophile73
Post Number: 46
Registered: 5-2004
| | Posted on Wednesday, February 02, 2005 - 12:36 am: |
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I think it's fine. Its a new uniden pc78 elite. The modulation is opened all the way and I figured out that the modulationi is much more than I though. The radio wasn't keying hish enough to let me set the modulation meter right. So yeah it's stock no swing kit or anything. Do those even work, i thought they just overmodulated everything. So yeah stock turned down modulation opened up all the way about 1 watt swing to 4 or a little more |
Airplane1
Intermediate Member
Username: Airplane1
Post Number: 277
Registered: 5-2004
| | Posted on Wednesday, February 02, 2005 - 7:46 am: |
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Are you turning the radio down to run an amp?
You dont want to turn it down if your not going to run an amp.this will hurt your getting out.
please give more info about what your doing and what your setting up and then Lon or alot of members can help you better.
They realy helped me.
airplane |
Red
New member
Username: Red
Post Number: 3
Registered: 1-2005
| | Posted on Sunday, February 06, 2005 - 8:42 am: |
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I tried turning my dead key back and messed my radio up. I had bought a Galaxy DX-959 from Copper and paid to have it peaked and tuned. Thats before I knew much about CBs. When I got it, it was awesome. 100% Modulatation and with power knob at lowest setting dead on 4 watts high about 12 or 14. Then I bought this 2 pill box and it seemed I was over driving it so I got on the internet and looked for mods for this radio and tried adjusting the different pots like it said. Everything went haywire. So I took it to the shop and the guy said he did all he could do. It dead keys 2 1/2 and swings about 18 and the best modulation I can get is about 35%. Even with this configuration I still get excellent reports from up to 25 miles barefoot and talk plent of skip with a little fire in the wire. Wish I could get better proformance but not reaaly complaining.
Carlos |
Audiophile73
Junior Member
Username: Audiophile73
Post Number: 47
Registered: 5-2004
| | Posted on Sunday, February 06, 2005 - 8:03 pm: |
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Are you sure your getting only that amount of modulation. I only say this because is you are keying 2 1/2 watts and swinging beyond 5 or 6 watts then you are probably getting over 100% modulation. Make sure that you are calibrating your meter right. Lots of the times you have to have a 3 or 4 watt dk to give you the right reading |
Red
New member
Username: Red
Post Number: 4
Registered: 1-2005
| | Posted on Monday, February 07, 2005 - 7:10 am: |
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Using the meter on the radio and also an Astatic 600, I get the same readings of around 35% barefoot. But with a little fire in the wire it jumps up to 100% or more. My SWRs jump up a little when I run the box on Med or High. Adjusted the 600 just like the book said. My wife says I should leave well enough alone, but I really would like it to be right, not half right.
Thanks guys
Carlos |
Audiophile73
Junior Member
Username: Audiophile73
Post Number: 48
Registered: 5-2004
| | Posted on Wednesday, February 09, 2005 - 12:35 am: |
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well a linear shouldn't make your modulation go up at all. What is happening most likely is that your radio isn't keying up at a high enough wattage for your meter. So when you run a higher dead key with your linear you are reading your true modulation because your meter is happy. |
