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#1
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I was wondering how can one transmit CW on a 6 meters, 2 meters and 440
MHz HT radio? What kind of CW key is used? Straight or paddle? Where is it connected on the HT radio? How do you control things like tone, speed, weight? HT V/UHF radio seem to not have a CW mode. Is their a HT model out there for CW? 73, SR! |
#2
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SR wrote:
I was wondering how can one transmit CW on a 6 meters, 2 meters and 440 MHz HT radio? What kind of CW key is used? Straight or paddle? Where is it connected on the HT radio? How do you control things like tone, speed, weight? HT V/UHF radio seem to not have a CW mode. Is their a HT model out there for CW? I don't know of any current HTs that will transmit CW. The Kenwood TH-F6 will *receive* CW but won't transmit it. (I believe Yaesu makes a similar radio) Theory would suggest you could send CW with any HT by using the push-to-talk button as a Morse key. Or, by connecting a code key to the external microphone jack, to the PTT terminals. However, in my experience this works VERY poorly if at all. [0] I don't think the frequency-setting PLL circuit stabilizes fast enough to allow you to do this. You might be able to do it at VERY slow code speeds, 5wpm or less. One good option is to use *tone-modulated* CW. Use one of the touch-tone buttons on the radio as a code key. Unlike shortwave CW, the RF carrier would be on all the time, but you'd be keying an audio tone (actually, two audio tones) on and off. *Any* HT with a tone pad could transmit this way, and *any* normal HT could receive this kind of CW. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com [0] (I managed to complete a CW contact this way on 2 meters once. I later contacted the same station on 6 meters, where I had a real radio. Asked him what my signal was like on 2 meters. He said "if a guy wants the contact badly enough, he can copy it...") |
#3
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Doug Smith W9WI wrote in
: SR wrote: I was wondering how can one transmit CW on a 6 meters, 2 meters and 440 MHz HT radio? What kind of CW key is used? Straight or paddle? Where is it connected on the HT radio? How do you control things like tone, speed, weight? HT V/UHF radio seem to not have a CW mode. Is their a HT model out there for CW? I don't know of any current HTs that will transmit CW. The Kenwood TH-F6 will *receive* CW but won't transmit it. (I believe Yaesu makes a similar radio) Theory would suggest you could send CW with any HT by using the push-to-talk button as a Morse key. Or, by connecting a code key to the external microphone jack, to the PTT terminals. However, in my experience this works VERY poorly if at all. [0] I don't think the frequency-setting PLL circuit stabilizes fast enough to allow you to do this. You might be able to do it at VERY slow code speeds, 5wpm or less. One good option is to use *tone-modulated* CW. Use one of the touch-tone buttons on the radio as a code key. Unlike shortwave CW, the RF carrier would be on all the time, but you'd be keying an audio tone (actually, two audio tones) on and off. *Any* HT with a tone pad could transmit this way, and *any* normal HT could receive this kind of CW. I used to use an HT to communicate through RS-10, just keying the FM transmitter, and receiving the downlink on my HF rig. Not quality CW but it worked. If SR has an all mode HF receiver, he can tap the IF in the HT, set the IF frequency on the HF rig and receive decode CW and SSB from the HT that way. SC |
#4
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Slow Code wrote:
If SR has an all mode HF receiver, he can tap the IF in the HT, set the IF frequency on the HF rig and receive decode CW and SSB from the HT that way. I've done this, and it works very well. Except that it's darned difficult to tap the IF of a tiny HT! -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
#5
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Doug Smith W9WI wrote in
: Slow Code wrote: If SR has an all mode HF receiver, he can tap the IF in the HT, set the IF frequency on the HF rig and receive decode CW and SSB from the HT that way. I've done this, and it works very well. Except that it's darned difficult to tap the IF of a tiny HT! That's true. I don't recommend anyone take apart their best hand-held or scanner, but if they have old equipment, it's simple way to get all modes UHF/VHF with just an FM receiver and an all-mode HF receiver. SC |
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