Question on Setting Up RF Explorer to Analyze Ham Radio Transceiver Emissions

[Harold Wandke]

Does anyone have experience testing their ham radio transceivers on the RF Explorer?  I am using the 3G Combo, comparing a BTech with a Yaesu FT-60R and a Yaesu FT-818 on 2 meters.  I am getting very high second and third harmonics for all three transceivers.  Not so much a surprise for the BTech, but it compares favorably with the two Yaesus.  I am attenuating 50db with a Bird 20db and a Bird 30 db in series.  I injected a 2m signal from a TinySA into the RF Explorer as a test; I observed the same harmonics, although at lower levels.

My setup is shown below.

Thanks,
KG5YSK

[RF Explorer]

Hi Harold,

The TinySA produces bunch of harmonics, but I do not know about the Yaesu radios, they shouldn't. Are you using the left-module or right-module in your RF Explorer? For best results, you should use right-side module just in case.

Regards,

RF Explorer Team

[Harold Wandke]

Thank you for your quick response.  I am using the right hand module (15-2700 MHz).

Is it permitted to hook the signal into the RF Explorer as shown in the photo from my previous email?  Is my attenuation level ok?

Thanks,

Harold

[Harold Wandke]

Photo of setup is attached.