Tim N7KOMHad a tough time doing #SOTA with the MTR3B today. The adapter train 🚂 was likely failing at the RCA adapter. Made 3 QSOs and had to hand things off to the KX2 to make some real contacts. #HamRadio #PortableOps
Alt text: MTR3B and a train of adapters to a tuner
Anyway, so when I got home I got to work building an RCA matching unit. Of course I immediately dropped the SMD cap. My PC caught it.
The SMD was installed as a shunt to ground on the RCA.
Tomorrow I'll tune the antenna and epoxy the Toroid + heat shrink.
Alex (HB3XEW)@tsherrygeo That looks cool 😅
But didn’t you want to replace the RCA with BNC or SMA?
But didn’t you want to replace the RCA with BNC or SMA?
@hb3xew K6ARK convinced me to try it with an RCA because the plug is so small.
https://youtube.com/shorts/tPVuZ5XZl6Y?feature=share
https://youtube.com/shorts/tPVuZ5XZl6Y?feature=share
This RCA Jack is the Perfect Tiny Matching Unit #comedy #hamradio
@tsherrygeo Well it definitely is small and it is more convenient compared to SMA..
Comrade Weez@tsherrygeo RCA connector looks like a good candidate for replacement with a BNC bulkhead female as on the tuner. A double male BNC adapter would join them up neatly with good mechanical stability for the weight of the critters.
Tony M5OTA@tsherrygeo surprised to see a complete lack of adapters on the key and headphones in this picture. A couple on each of those would likely balance things out and have things running sweetly 😂
F4EGX@tsherrygeo The first things I did on my MTR3B was put in a BNC, a 9V battery connector, and a key.
And I made a slight modification to decrease the audio distortions
@F4EGX_Nico I may go that route. Going to test how I like it with RCA first. First mod is going to be putting in a 2.1mm DC jack.
Richard Corfield@tsherrygeo I've tended to use resonant antennas. Limits my band choice if I'm carrying a single band EFHW, but so light and convenient. I have a short BNC to BNC for use with an ATU.
@m0rjc this was a "hey what's in this old box that I could use today" scenario. After this I built a dedicated EFHW on an RCA connector"