We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - JimIO

Pages: 1 [2] 3 4 5 6 7 8 9 10 ... 33
They could switch all the sports stations to digital first and see how that works.


How is the ON/OFF switch connected in the circuit?

    * When and how can I get one?
We plan to release the product within a matter of a few weeks.


Ain't gonna happen.


Huh? / Re: Simplest Tx
« on: April 14, 2020, 1831 UTC »

Huh? / Re: Simplest Tx
« on: April 14, 2020, 1805 UTC »

It's not the hippies and it's not a secret any more...

Part 15 AM and FM Station Operation / Re: Part #15 gear out there.
« on: April 13, 2020, 0033 UTC »
I found an "original" Talking House on ebay. ~$20 + $10 shipping.
I'm beginning to think it was a mistake. When I got it I unboxed it on
the kitchen counter and plugged it in. The ground fault breaker tripped.
I got the DMM and checked from the line to nutral of the plug and got ~120
ohms. I checked line/nutral to the ground pin and it is open.
I took the 4 scews out of the bottom. The bottom comes off and everything
is mounted to the top. It appears to have a shielded
3 wire power cord. Black + White +Green + uninsulated braid.
There is a small power transformer. Black and White are each connected
to one transformer lead. Green and braid are connected to the transformer
frame. There ts a wire from the transformer frame to one of the circuit
boards. There is a wire from nutral to the same board.
I plugged it into a non ground fault outlet and it powers up.
Apparently there is cicuitry to prevent it from working if it is not
plugged into a grounded outlet. I looked around the net and could
not find anything so it's just sitting in a pile for now.


The RF Workbench / Re: Simplest Tx
« on: April 12, 2020, 1929 UTC »
"I won't query your remarks any further as you have nothing useful to add."

I tried to say that in fewer words but my post got moved.


Group W Bench / Re: Simplest Tx
« on: April 12, 2020, 0013 UTC »

Part 15 AM and FM Station Operation / Re: Part #15 gear out there.
« on: April 06, 2020, 1724 UTC »
Just add a couple AC rated capacitors and fuses and you could feed both sides.


Pages: 1 [2] 3 4 5 6 7 8 9 10 ... 33