[Milsurplus] BC-9 Loop Test: Scratching My Head.

[Kenneth G. Gordon]

On 11 Feb 2017 at 8:44, AKLDGUY . wrote:

> 
> Split frequency would be possible where the BC-9 was working with a station
> such as a command base where the receiver and transmitter frequencies could
> be independently set.
> 
> But the BC-9 is a true transceiver. For a pair of them in contact, one would
> need to be transmitting high and listening low, while the other would need to be
> tuned vice versa. How could that be accomplished in the present design?

Ah! Yes! I had not thought of that, but yes you are correct. TWO BC-9s could operate that 
way, but not more than two, unless one was only a Master station and none of the others 
needed to talk with one another.

Again, I must reiterate that the original manual went into some detail on netting. I'll have to 
dig that out and review what was there. It was not what we would consider to be a simple 
process.

> 
> I do not think split frequency is the answer to the problem. I'm still unconvinced
> that there isn't a wiring diagram mistake

Neither am I. In fact, when David told us about that frequency offset, that was the very first 
thing that came to my mind. SOMEthing is missing.

> and the key should be shown connected
> to the capacitor and neither should connect to 120V B+.

I'll take a closer look at the schematic. I, like you, am convinced we are missing something 
about that schematic. The way the thing is presently operating cannot be correct.

Ken W7EKB

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