Re: PIC Question (UPDATE)
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You can¡®t receive any signal through the AT but signal from generator goes through!!! Do you measure only over stray capacities with yor skope? (Ri>10M). Scope Probe was on 10X.? It's a Tektronix 465.? ?| Input impedance | 1?M¦¸ ¡À2% // 20?pF |
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?At what power level sends the generator and what frequency?? 20mHz at .6 volts on the scope
What is the resistive value between in and out of the UNPOWERED AT? It should be near 0 Ohms.? It is 0 ohms
Then you should receive any signal through the AT. Is your TX really sending 10 W? no foldback through security circuits??? I used the auto tuner in the radio so it wouldn't fold back.? It did tune it ok.
I will have to pull T1 and T2 next and check for a problem.? I lifted D1 and D2 out of the circuit and they both passed the diode test.
Bill
On Saturday, November 9, 2024 at 02:59:04 PM CST, Immo, DL5KB <dl5kb@...> wrote:
something stinks¡
You can¡®t receive any signal through the AT but signal from generator goes through!!! Do you measure only over stray capacities with yor skope? (Ri>10M). At what power level sends the generator and what frequency??
What is the resistive value between in and out of the UNPOWERED AT? It should be near 0 Ohms.
Then you should receive any signal through the AT. Is your TX really sending 10 W? no foldback through security circuits?
Tell me tomorrow!
73, Immo
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