| Author |
Message |
    
Boxcar
| | Posted on Wednesday, February 12, 2003 - 8:33 pm: | 
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Just curious as to if anyone has the concept of utilizing your computer to transmit on the 11 meter channels. I've heard a local here in town and know he's doing this somehow or so I've been told but never actually met the guy. What kind of equipment would you need and how do you hook it up? Thanks a bunch!!!!!!!! |
707
| | Posted on Wednesday, February 12, 2003 - 11:16 pm: |
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It's not difficult at all. The cheap way is to use a Radio Shack telephone pickup coil stuck to the back of your plastic handmike or the front grill of a metal body mic, then plug it into your computer soundcard output. Key radio, play sound on computer. This keeps your computer electrically isolated from the radio and costs about $4
The best sounding and more professional(professional noisemaker?) is to build a nice audio interface for your radio or buy an interface designed for use with amateur radio RTTY/PACKET/etc. modes. You can play sounds through it and also record sounds coming back from the radio. |
Crafter
| | Posted on Wednesday, February 12, 2003 - 11:29 pm: |
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Yes I have used Paket on 11 meters used it to link two vhf freqs. All you would need is a Hf TNC and your set but good luck making a contact its tuff enuff on ham freqs. If you get a ham license you can do paket basiclly a tnc is a modem and the radio is like the phone line if this makes sense to you. Send me a e-mail I like the paket raket.
kc5djb@yahoo.com |
DE
| | Posted on Thursday, February 13, 2003 - 12:46 am: |
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You need either a computer program and a computer with a good sound card. OR you need what is called a TNC and a terminal program.
HOWEVER, digital transmissions of the kind you are speaking are illegal on CB frequencies.
Only voice transmissions are allowed. |
Rob_Usa
| | Posted on Thursday, February 13, 2003 - 1:17 am: |
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DE, most everything being done on CB is illegal, even taking skip. Come on now, really. I have been considering SSTV on CB frequencies. I understand it's already been done across the ocean, thinking about getting it started here. |
Kiwikid
| | Posted on Thursday, February 13, 2003 - 5:22 am: |
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Hello Team,well your right on that one Rob Usa,I have heard and communicated with stations via a PC /CB repeater.Kind of weird getting used to it though as it was a parrot repeater so you heard your own voice being relayed.Very good for testing your own equipment etc.It is based in Tasmania some 1500 miles away so when the skip comes in us Kiwis could work stations up and down the two main islands of my country via this link.
Cheers Kiwi Kid |
compdude
| | Posted on Thursday, February 13, 2003 - 7:21 am: |
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Why? I dont see the need to do this except maybe for the challenge to do it!! |
Taz
| | Posted on Thursday, February 13, 2003 - 10:10 am: |
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It's not much of a challenge. |
Phineas
| | Posted on Thursday, February 13, 2003 - 11:42 am: |
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DE
[Code of Federal Regulations]
[Title 47, Volume 5]
[Revised as of October 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR95.413]
[Page 542-543]
TITLE 47--TELECOMMUNICATION
CHAPTER I--FEDERAL COMMUNICATIONS
COMMISSION (CONTINUED)
PART 95--PERSONAL RADIO SERVICES--Table of Contents
Subpart D--Citizens Band (CB) Radio Service
Sec. 95.413 (CB Rule 13) What communications are prohibited?
(a) You must not use a CB station--
(1) In connection with any activity which is against federal, state
or local law;
(2) To transmit obscence, indecent or profane words, language or
meaning;
(3) To interfere intentionally with the communications of another CB
station;
(4) To transmit one-way communications, except for emergency
communications, traveler assistance, brief tests (radio checks), or
voice paging;
(5) To advertise or solicit the sale of any goods or services;
(6) To transmit music, whistling, sound effects or any material to
amuse or entertain;
(7) To transmit any sound effect solely to attract attention;
(8) To transmit the word ``MAYDAY'' or any other international
distress signal, except when your station is located in a ship, aircraft
or other vehicle which is threatened by grave and imminent danger and
your are requesting immediate assistance;
(9) To communicate with, or attempt to communicate with, any CB
station more than 250 kilometers (155.3 miles) away;
(10) To advertise a political candidate or political campaign; (you
may use your CB radio for the business or organizational aspects of a
campaign, if you follow all other applicable rules);
(11) To communicate with stations in other countries, except General
Radio Service stations in Canada; or
(12) To transmit a false or deceptive communication.
(b) You must not use a CB station to transmit communications for
live or
[[Page 543]]
delayed rebroadcast on a radio or television broadcast station. You may
use your CB station to gather news items or to prepare programs.
Also
TITLE 47--TELECOMMUNICATION
CHAPTER I--FEDERAL COMMUNICATIONS
COMMISSION (CONTINUED)
PART 95--PERSONAL RADIO SERVICES--Table of Contents
Subpart D--Citizens Band (CB) Radio Service
Sec. 95.412 (CB Rule 12) What communications may be transmitted?
(a) You may use your CB station to transmit two-way plain language
communications. Two-way plain language communications are communications
without codes or coded messages. Operating signals such as ``ten codes''
are not considered codes or coded messages. You may transmit two-way
plain language communications only to other CB stations, to units of
your own CB station or to authorized government stations on CB
frequencies about--
(1) Your personal or business activities or those of members of your
immediate family living in your household;
(2) Emergencies (see CB Rule 18, Sec. 95.418);
(3) Traveler assistance (see CB Rule 18, Sec. 95.418); or
(4) Civil defense activities in connection with official tests or
drills conducted by, or actual emergencies announced by, the civil
defense agency with authority over the area in which your station is
located.
(b) You may use your CB station to transmit a tone signal only when
the signal is used to make contact or to continue communications.
(Examples of circuits using these signals are tone operated squelch and
selective calling circuits.) If the signal is an audible tone, it must
last no longer than 15 seconds at one time. If the signal is a
subaudible tone, it may be transmitted continuously only as long as you
are talking.
(c) You may use your CB station to transmit one-way communications
(messages which are not intended to establish communications between two
or more particular CB stations) only for emergency communications,
traveler assistance, brief tests (radio checks) or voice paging.
Digital modes are not illegal on CB.
Phineas |
4 watts does the trick
| | Posted on Thursday, February 13, 2003 - 4:16 pm: |
|
oh and now you guys get into legality over running an audio feed to a cb radio
when we all know the only thing your gonna do is play anoying sounds over channel 6 or 19 |
Znut
| | Posted on Thursday, February 13, 2003 - 5:59 pm: |
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SSTV baby. It's fun but keep it clean.
|
de
| | Posted on Thursday, February 13, 2003 - 7:25 pm: |
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Re Taz...
Actually it is a challenge. You see in the Amateur Service digital modes can be relayed great distances. One such mode is called Packet or computer talking to computer. Person 'A' types a message to person 'B' who happens to live on the other side of the country. The message is relayed from relay point to relay point untill the message is received by a pickup staton in the town where 'B' lives. Hopefully 'B' will pick up his packet E mail off the local point.
However the CB world does not have this interlinking network of automated forwarding so the messages will have to be one on one direct. Hence the challenge. |
DeadlyEyes
| | Posted on Thursday, February 13, 2003 - 7:19 pm: |
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Re P....
If you will reread your own post. You will see that it clearly does not state that you can transmit digital. The regs clearly state which modes are legal for each given service and band. Anything other than the stated legal modes should be considered to be illegal. |
707
| | Posted on Thursday, February 13, 2003 - 10:15 pm: |
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Kiwi-
Funny you should mention the simplex repeater idea. Years ago when the SoundBlaster mono cards came out, they included a little program called "Parrot", which did exactly what the name implies. I immediately put it to use doing what you posted, so far as testing my mobile radio at various distances. I had the card running on a 386-33 with it's own dedicated Midland 78-574 on a 1/2 wave GP from the shop at my workplace. I couldn't get anybody interested in using it as a DX repeater, but we had great fun with it locally and for miles around. |
Insider
| | Posted on Thursday, February 13, 2003 - 10:24 pm: |
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Here's a real challenge for you. Digital via Single Sideband. |
Taz
| | Posted on Thursday, February 13, 2003 - 11:03 pm: |
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DE,
I know of a card, if you could modify it to properly work, it would allow you to speak through a mic and then be TX over cb freqs.
707 knows the link to it. |
Inspector
| | Posted on Monday, February 17, 2003 - 6:00 am: |
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http://wintransceiver.com/ |
Phineas
| | Posted on Monday, February 17, 2003 - 9:27 pm: |
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DE
THe post does not say anything about SSB either. Not to mention that years ago, there were FCC approved walkie talkies that has Code keys built in.
Phineas |
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