Spectra of various QRP Kits

This page contains information on the monoband QRP rigs that were popluar a few years ago. They still receive frequent use here, especially with the addition of Elecraft’s T1 autotuner, which makes them all the more easily portable.

Voltage, RF out, Weight & Spectra

Measurements – Fluke 87 multimeter, digital scale, HP 8563A spectrum analyzer. Click on thumbnail of plot to see a full-size version.

Rig
I rcv
I tx
RF out
Weight
Plot
2nd
3rd
4th
SST-30
19 mA
210 mA
1.9 W
7 oz
sst30t
-52
-58
-70
SST-40
21 mA
182 mA
1.8 W
7 oz
sst40t
-41
-70
-75
Norcal 40A + KC1
19 mA
330 mA
2.2 W
14 oz
nc40t
-34
-59
-72
DSW-20
45 mA
400 mA
2.0 W
10 oz
dsw20t
-44

Too low to measure

-66
DSW-40
39 mA
410 mA
2.0 W
10 oz