Hi all!
Completely new to this group, but I have owned a TinySA Ultra for a few months now (mainly using it for calibration of S meters) and I am really impressed at the functions and features of this device. When it comes to conducting any sort of "Alignment", I am a complete novice. Hence, the questions below are pretty elementary to many of you.
I wanted to ask for any recommendations for test leads and other things I need, to carry out the following type measurements/alignment. I don't care if the leads cost serious money (like those from Pasternak). Erik who has designed this device also has suggested a "DC blocker" and obviously I need a mechanical "adaptor" to convert from SMA to BCN for instance. What else do I need? I will check out any YouTube videos that are out there for carrying out alignments such as these.
Alignment of a 100% solid-state ham radio receiver which goes back more than 50 years. In my case, I need to do an "alignment" of a Lafayette HA-800B receiver. The Installation and Operating Manual provides fairly detailed instructions on this. Next up for alignment is a 100% tube Receiver by TRIO-Kenwood (9R-59DS).
In more detail:
* IF (1st at 2.608MHz and 2nd at 455 kHz)
** 2nd IF at 455kHz at 30% AM modulation depth at 1,000Hz) and 1st IF, injecting an unmodulated (I believe) signal at 2.608MHz connecting the test leads between the chassis and the Gate of a FET ("FET-2")
* 1st oscillator (different ham radio bands, not including WARC) - It doesn't say which level the signal needs to be though and I believe that an unmodulated sinusoidal wave is sufficient?
* ANT and RF coils (here, too, no information is provided about the signal that I need to inject so, I am assuming a sinusoidal wave would suffice?)
* S meter (100uV level unmodulated signal at 14.0MHz)
* 1st IF Trap Coil (at 2.608MHz, AM modulated at 1,000Hz at 30% depth)
Any guidance/suggestion or recommendations would be highly appreciated on all of the above!!
73!
Juha
NI2M
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