Found an old 500d. Has a good dummy load so worth keeping. I tried to use it just for fun to test SWR. Instruction sheet says for SWR it should first be calibrated to the 'SET' mark on the SWR scale while in the FWD mode. However, there is no 'SET' mark on that scale. Does anyone know if one of the numbers on the scale is perhaps the 'SET' mark? Thanks.
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Port-A-Lab 500d question
- Thread starter cdm
- Start date
BJ radionut
Supporting Member and 6m addict
courier port-a-lab 500d manual needed
im looking for a manual for this meter courier port-a-lab 500d THANKS
The end of the scale (far right side) on the SWR scale is set point.
knob: SWR CAL...Key radio adjust cal knob to set point...set knob to REV...key TX and read level
You must recalibrate every time you change frequency or power level!!
DO NOT expect that dummy load to handle more than about 25 watts PEP!
Many fried by overload by other owner's!
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@ BJ radionut:Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
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@ BJ radionut:
Strong (G3) Storm in Progress March 23, 2023 @ 14:45 UTC (UPDATED) Not the best of timing for aurora sky watchers across northern Europe and North America, however a moderate (G2) geomagnetic storm is currently in progress. A watch for Strong (G3) conditions has been added. The Bz component of the interplanetary magnetic field (IMF) has been tipped south, a condition known to fuel geomagnetic activity around the polar zones. Stay tuned for the latest updates. UPDATE: The strong G3 storm threshold was reached at 14:46 UTC. ALERT: Geomagnetic K-index of 7 Threshold Reached: 2023 Mar 23 1446 UT Synoptic Period: 1200-1500 UT Active Warning: Yes NOAA Scale: G3 - Strong -
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