| Author |
Message |
    
Al_lafon
Junior Member
Username: Al_lafon
Post Number: 45
Registered: 3-2005
| | Posted on Saturday, July 09, 2005 - 1:10 am: | 
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I got a old 23 CB SSB rig here and a teen kid
that has the cb bug.Ok i am going to put 26 thu 40 in it. Now let me ask you guys what other freqs to add to this old CB ? Open for remarks? |
Twowatt
Junior Member
Username: Twowatt
Post Number: 16
Registered: 7-2005
| | Posted on Saturday, July 09, 2005 - 2:00 pm: |
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well if he's going to work mostly ssb, then more above 40 - if mostly am, then more below 1. at least that's the way it used to be. |
Dale
Intermediate Member
Username: Dale
Post Number: 130
Registered: 12-2002
| | Posted on Saturday, July 09, 2005 - 9:32 pm: |
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i agree depends on if used on am or ssb.but if it were me id go above 40 but im run ssb 90percent of the time |
Bruce
Senior Member
Username: Bruce
Post Number: 2942
Registered: 9-2003
| | Posted on Saturday, July 09, 2005 - 9:57 pm: |
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how are you going to add them? |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 1025
Registered: 7-2004
| | Posted on Saturday, July 09, 2005 - 11:06 pm: |
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23 + 17 = 40. come on, bruce, get with the program here |
Bruce
Senior Member
Username: Bruce
Post Number: 2945
Registered: 9-2003
| | Posted on Sunday, July 10, 2005 - 12:11 am: |
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I HAD to ask GEEEEEEEEEEEEEEEEEEEEEEEEEEEse |
Bruce
Senior Member
Username: Bruce
Post Number: 2948
Registered: 9-2003
| | Posted on Sunday, July 10, 2005 - 11:02 am: |
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Leagal or not why bother? A 23 is 30 years old well beyond its design life. |
Yankee
Advanced Member
Username: Yankee
Post Number: 730
Registered: 7-2003
| | Posted on Sunday, July 10, 2005 - 2:33 pm: |
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I agree with Bruce, converting a 23 channel for 40 channels is a job in it's self, let alone getting anything above 40 or below one is worse yet. Best to start the young lad with a legal 40 channel sideband rig and teach him properly. And no, I didn't say an export rig.
Carl CEF-357 |
Bruce
Senior Member
Username: Bruce
Post Number: 2949
Registered: 9-2003
| | Posted on Sunday, July 10, 2005 - 8:17 pm: |
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Again WHY BOTHER .... I dumped the few i had left years ago. Decent or not they are not even leagal and crystals are not cheep. You can buy a 40 ch ssb radio for less that a tram or a Browning ....... You know a collins "S" line is a great radio too ......... but would i buy one NO WAY....... |
Starface
Member
Username: Starface
Post Number: 99
Registered: 1-2005
| | Posted on Sunday, July 10, 2005 - 9:26 pm: |
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wouldn't a digascan work too?
just a tought
Starface
CEF#476
Southeast Net Control
Auburndale,FL
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Al_lafon
Junior Member
Username: Al_lafon
Post Number: 46
Registered: 3-2005
| | Posted on Sunday, July 10, 2005 - 9:20 pm: |
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Ok we got doom guys talking here its a Midland
13-976. I got a sheet that gives me the info to
change out crystals and i know a site that has the ones needed to do a mod like this.Also from what i saw they have crystals to put 36 at channel one.Hollowpoint445 on Some 23 channel rigs are PLL synthesized whith ones do you know of ssb. better yet lets get a list of PLL synthesized rigs that we all like right now i have a TRC-457 an love to find a GE SSB Super Base very nice one.
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Bruce
Senior Member
Username: Bruce
Post Number: 2950
Registered: 9-2003
| | Posted on Sunday, July 10, 2005 - 10:41 pm: |
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Good example that midland to add 17 ch would take 3 crystals they cost about $15 each.
I converted a very simular midland in the late 80's to 10 meters ( THATS LEAGAL ) but the problem is cost ..... even a 3 crystal mixer or tying the lines on a pl-02 chip is a lot of work but CAN be done cheaply but the other problem is is bandwidth remember a 23 only has to be 300 khz wide not 500 khz so you got to widing up the receiver if you want to expand it beyond a point.
http://www.cbcintl.com/XTALS/SSB%2023330-14907-11275-1RX.pdf |
Yankee
Advanced Member
Username: Yankee
Post Number: 731
Registered: 7-2003
| | Posted on Sunday, July 10, 2005 - 11:58 pm: |
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I only know of one GE Super Base and it's for sale or should I say it was when I was back home in Upstate New York in April for two weeks and I went to visit at the local radio shop, the radio comes with a Night Eagle and I want to think the price was somthing around $300.00 radio and microphone looked like new. This was the only GE Super Base I've ever seen. As Bruce has said crystals are not cheap.
Carl CEF-357 |
Tech808
Moderator
Username: Tech808
Post Number: 6315
Registered: 8-2002
| | Posted on Monday, July 11, 2005 - 8:44 am: |
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Click on the LINK below to view a list of CB Radio PLL's and PLL Pinouts.
CB Radio PLL List
Hope this helps,
Lon
Tech808
CEF808
N9OSN |
Scrapiron63
Advanced Member
Username: Scrapiron63
Post Number: 844
Registered: 12-2001
| | Posted on Monday, July 11, 2005 - 12:53 pm: |
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Of course a VFO would be nice, but a good one is pretty expensive plus you really need a freq counter also to know where you are on frequency.
But you can get extra channels with crystals fairly simple and not too expensive.
Here's a chart for the crystals in the midland 13-976 and how they mix.
http://img.photobucket.com/albums/v208/Familystuff/midland.jpg
Notice that it adds "A" plus "B" then minus "C" to get the channel frequency. The "C" crystal, 11.275, is used in TX and RX on every channel. I haven't seen this tried on the 13-976, but on other 23 channel radios, like the Browning Mark III, Browning LTD, Cobra 135 and 132, Tram Diamond 60, and others that have the one crystal that mixes on every channel for TX and RX, it can be exchanged to get 23 more channels up or down, or both by using two crystals. If you happen to have a crystal that's not over 200-300 KCs different than the 11.275, you might just try it and see if the tx and rx stays together, if so you can then find the correct crystals to give it the freqs you want.
The other way is to add crystals to the "A" group, you will get 4 channels with each crystal. |
