Make your own SMA fixed attenuators that perform decently from 50 Khz to 1.2/1.3 Ghz.
Below are the resistors ordered from DigiKey. Be sure to order extra as they easily get lost!
Use 2 same value paralleled resistors for RA and R1/R2 (See schematic and chart in video).
Use a tiny spec of instant glue to hold them together.
1/2W SMD resistors are easier to work with than 1/8W while using tweezers to set them in place.

DigiKey Part # Description Reference
P143AACTND 143 OHM 1% 1/2W 1210 10 dB RA
RMCF1210FT191 191 OHM 1% 1/2W 1210 10 dB R1/R2
RMCF1210FT121 121 OHM 1% 1/2W 1210 20 dB R1/R2
RMCF1210FT499RCTND 499 OHM 1% 1/2W 1210 20 dB RA
541590AACTND 590 OHM 1% 1/2W 1210 3 dB R1/R2
RMCF1210FT34R8CTND 34.8 OHM 1% 1/2W 1210 3 dB RA
541301AACTND 301 OHM 1% 1/2W 1210 6 dB R1/R2
RMCF1210FT75R0CTND 75 OHM 1% 1/2W 1210 6 dB RA