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Just wondering what was typical. Thanks for any input!! ...Dave Hi Dave. What I found I had to do with my HA-5 with my Globe Scout 680 and DX-60 as a Novice was use a very fast relay with dual contacts - I smoked something when I tried to connect them 'in parallel' so thought isolation was in order. Funny thing is I never had a second receiver to monitor my actual keying on - my S-85 pulled so hard key-down that I have no idea what my keying was like. But I never had bad reports so it must have been pretty decent. Don't know how typical I was, but it worked for many years that way. Dave WB7AWK |
Just wondering what was typical. Thanks for any input!! ...Dave Hi Dave. What I found I had to do with my HA-5 with my Globe Scout 680 and DX-60 as a Novice was use a very fast relay with dual contacts - I smoked something when I tried to connect them 'in parallel' so thought isolation was in order. Funny thing is I never had a second receiver to monitor my actual keying on - my S-85 pulled so hard key-down that I have no idea what my keying was like. But I never had bad reports so it must have been pretty decent. Don't know how typical I was, but it worked for many years that way. Dave WB7AWK |
Keying Novice VFO's
Sorry, in the first line I meant I had a question about THEIR use.
...Dave "Dave Edwards" wrote in message ... I had my novice just before VFOs were allowed. I had a question about there use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer.....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Thanks for any input!! ...Dave |
Sorry, in the first line I meant I had a question about THEIR use.
...Dave "Dave Edwards" wrote in message ... I had my novice just before VFOs were allowed. I had a question about there use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer.....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Thanks for any input!! ...Dave |
Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. 73, Ed K4PF |
Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. 73, Ed K4PF |
Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. 73, Ed K4PF |
Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. 73, Ed K4PF |
In article , Edward Knobloch
writes: Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. In my experience, almost all vintage VFOs chirped when keyed. Some were better than others, and a few, like the HG-10B/HW-16 combo, were chirp-free. What I did back in the day was to use a 3PDT relay for transmit-receive control. The relay could be any convenient voltage and mounted in a small minibox with suitable connectors. #1 pole switched the antenna between receiver and transmitter #2 pole shorted the receiver antenna line to ground when in transmit #3 pole had the moving contact grounded. On receive, it grounded the mute line to the receiver, allowing the receiver to work normally. On transmit, it grounded the VFO key line so the VFO would turn come alive. 73 de Jim, N2EY |
In article , Edward Knobloch
writes: Dave Edwards KD2E wrote: I had my novice just before VFOs were allowed. I had a question about their use. They all seem to have an RF output, and a keying jack. So, did you have to run two wires from your bug/key/keyer .....one to key the rig, and one to key the VFO?? I'm thinking either that, or you ran a wire from one of the accessory contacts of your dowkey to the keying jack of the VFO. This would keep the VFO on during transmit mode. Just wondering what was typical. Looking at the Heath HG-10 VFO (mates with the DX-60, DX-40, DX-20, etc.), they provided a key jack on the back of the VFO. The VFO itself is wired to the keying line of the rig, with different circuits in the VFO for either cathode keyed, or grid block keyed rigs. A spot switch on the VFO allows VFO spotting without transmitting. If the VFO doesn't suffer from chirp, you can key it at the same time as the rig, resulting in full break-in (QSK) operation using a separate receiver antenna, or perhaps an electronic TR switch. Only chirpy VFO's must be left oscillating all the time, which causes a back-wave (tone heard during key-up) if you are transmitting on the same frequency as you are receiving. Since the VFO output frequency is multiplied in the associated novice class transmitter, chirp becomes more of a problem on the higher frequency bands. In my experience, almost all vintage VFOs chirped when keyed. Some were better than others, and a few, like the HG-10B/HW-16 combo, were chirp-free. What I did back in the day was to use a 3PDT relay for transmit-receive control. The relay could be any convenient voltage and mounted in a small minibox with suitable connectors. #1 pole switched the antenna between receiver and transmitter #2 pole shorted the receiver antenna line to ground when in transmit #3 pole had the moving contact grounded. On receive, it grounded the mute line to the receiver, allowing the receiver to work normally. On transmit, it grounded the VFO key line so the VFO would turn come alive. 73 de Jim, N2EY |
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