¿ªÔÆÌåÓý

I have come across this information, should be replaced Q14 and IC1?? MPF102 and CA3028 are recommended. http://www.zerobeat.net/drakelist/drakemod/drmod101.html

I think 433.92 MHz (or 864 MHz, but rarer) in Europe and about 315 MHz in USA. A 433.92 MHz (AKA 434 MHz) OOK receiver is about €10 and then the output can be seen on the scope. I've not connected

Well ... First watch this to understand zero span : https://youtu.be/BJmzWP4UmL8?si=Ne24NMPp9eEpIhIP Step by step: Assuming it is a signal around 434 MHz, set the SA to a center of 434, BW 500 kHz,

Hello, My old original tiny sa battery has swollen to 3 times its normal thickness.? Where can I buy an exact replacement.? I see it has a small circuit board inside the battery so I am guessing it

Also, use the widest IF bandwidth/resolution bandwidth and video bandwidth for the widest bandwidth of detected signals, consistent with dynamic range/noise level requirements; narrower bandwidths

Along with, "Is it plugged in and turned on?", Troubleshooting 101, Rules #1, 2, 3 73, Don N2VGU

Jim, Q25 collector is 2,05 volts

Thanks Dave, I have just made the S-meter adjustment in the one that was out of specs. Fortunately I had at hand? bnc 50 Ohms bnc load. Right now, rf gain set is fully clockwise and indicates 0,same

*wow GREAT !!!!* i am a begineer and not a expert? .... can help me to set for this ?? descibe the all passed to set the TinySA nut step by step ? help me ?? tnx 73

Per the voltage chart that would be about right. What is the collector voltage with no signal applied and RF gain fully cloackwise? "enriqueeeeee2001 via groups.io"

Hi Erique Sorry for my comment about transmit. Your rake is a receive only device ? Kind regards Kurt Fra: [email protected] <[email protected]> P? vegne af enriqueeeeee2001 via groups.io Sendt: 25.

Hi Enrique I see you have not followed the manual procedure. There is 3 potentioners you have to adjust In point 2 the receiver sensitivity control is adjusted so TP2Voltage is -1.35V with the input

A negative S-Meter deflection is not uncommon in radios of this era. With no signal input and maybe a match 50-ohm load on the antenna port with the RF Gain set to maximum clockwise rotation, there

A negative S-Meter deflection is not uncommon in radios of this era. With no signal input and maybe a match 50-ohm load on the antenna port with the RG Gain set to maximum clockwise rotation, there

Voltage in Q25 emitter is -4,86v? I think is right

What about the -5V used by the AVC circuit? You do not necessarily need to check ALL voltages. The primary interest is the AVC and S Meter circuits. Start there. Voltages will almost never be exactly

Definetely, one rx is not working correctly. I have tried with the second rx and when setting rf fully clockwise only goes to S-1 1 scale no deflection at all. I have connected the Tiny but not

You need to find out why your meter is deflecting negative. The manual does a good job of explaining how the circuits work. See section 4.9 AVC System. Are you using a DC blocking capacitor in series

Use zero-span mode. See tinySA | Main / Capturing OOK ISM Transmissions ( https://tinysa.org/wiki/pmwiki.php?n=Main.ISMTransmissions )

Hello Kurt, thanks for your comments. Answering your questions and indications: 1. S-.meter is always deflected (negative going) because according to the mnual indicates the RF gain control must be