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Old September 30th 03, 07:55 PM
Dave
 
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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


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Old September 30th 03, 07:55 PM
Dave
 
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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


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Old October 1st 03, 04:38 AM
Dave Edwards
 
Posts: n/a
Default 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




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Old October 1st 03, 04:38 AM
Dave Edwards
 
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Default

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




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Old October 1st 03, 05:47 AM
Edward Knobloch
 
Posts: n/a
Default



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



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Old October 1st 03, 05:47 AM
Edward Knobloch
 
Posts: n/a
Default



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

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Old October 1st 03, 05:48 AM
Edward Knobloch
 
Posts: n/a
Default



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

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Old October 1st 03, 05:48 AM
Edward Knobloch
 
Posts: n/a
Default



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

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Old October 1st 03, 02:29 PM
N2EY
 
Posts: n/a
Default

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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Old October 1st 03, 02:29 PM
N2EY
 
Posts: n/a
Default

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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