| Author |
Message |
    
Jesse James
| | Posted on Friday, June 13, 2003 - 12:03 pm: | 
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Can someone please explain what split freq. is and how it works, what is it's purpose.
Thanks guys
Jesse James
Port Allen, Louisiana |
bruce
| | Posted on Friday, June 13, 2003 - 6:01 pm: |
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What split frequency is used for most offen is REPEATERS and how they work is this lets say you have a receiver on ch 1 and a transmitter on ch 40.
Now you put them on a 1000 foot tower and everyone using them RECEIVES on ch 40 and TRANSMITTS on ch1 REVERSE to your 1000 foot high cb set. NOW you feed the reciver audio into the mike jack and key the transmitter with the incomming recve signal squelch SO everytime someone transmitts on ch 1 he is retransmitted on ch 40 from 1000FOOT! it allows you to take a base station where ever you go now this is a simplistic view but you should get the idea and this is why on VHF/UHF repeaters rule!
check this web site
http://www.arrl.org
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de
| | Posted on Friday, June 13, 2003 - 6:33 pm: |
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Greeting fellow Louisiana person...
Working split frequency is a term and practuce used by hams who work DX. Rather than fight the big pile of calls to your CQ call they work split.
Split is simply listening on one frequency and transmitting on another frequency. In Ham Terms it is called listening "Up" or Listening "Down".
In the CB world if you were to work split you wild be talking to your buddy in the following manner. You would listen on one channel and transmit on an entirely different channel. HE on the other hand would listen on your transmit channel and transmit on your listen channel. YOU would be able to hear each other but anyone listening would only hear half of the conversation.
HOWEVER in order to do this your radio would have to have a split frequency mode such that it would automatic switch to the listen after transmitting. CB radios do not do this. UNLESS and this is the only real way you are going to work split using CB radios. You and your buddy would need two radios each. One radio is set to receive use only while the other used to transmit only (volume turned all the way to minimum). AND the two frequencies would have to be far enough appart so you would not feedback your RF output. AND you would of course need two entirely independant anttnna systems or some kind of automated antenna switching circut so you would not have to manually switch the antenna from one radio to the other.
I hope that I did not confuse you.
Signed
DE
In
Opelousas, LA |
Galaxyraider
| | Posted on Friday, June 13, 2003 - 7:51 pm: |
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Back in the late 50s and early 60s Split frequency was easy on the old tubers. My old International 50 had a variable receiver and crystal control transmit.
Tune any where on the 11 meter and transmit on any of the 23 channels.
We did it often since many CBers never had matched up crystals. |
bruce
| | Posted on Friday, June 13, 2003 - 9:11 pm: |
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de i wasnt even thinking of that use but your correct on HF that is done and dont forget frequency hopping my take is i have a shack full of transcivers and if someone will not tune in on my RIT i dont need to work him anyway
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