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Larry, From what information I can find the 7300 scope is 10db per vertical division. ?You didn’t say whether the Ref level was changed +/- 20db. Either way the spurs appear to be less than max

The 7300 can generate distortion product on RX with strong signals. Keep the signal under S9 by using attenuator, RF gain. Try it again with those changes made. -- Allison ------------------ Post

In the first session, the MSTs were wall to wall on 40m for me in the US. It would be nice if the hours for qcx and mst were offset or maybe that is by design? Also wish there were more US ops

Well to fair i have only recently joined!? This diode mod sounds interesting though. -- 73 de Pete G8RXZ

I think Donald's point about having a lightening arrestor is simply that it's a convenient way to ground the shield of the coax because it has an earth terminal connected to the shield. I have a

A lightning arrestor will do nothing for common mode currents. It's a current on the outside of the coax shield. not a fairly high voltage that has to be reached to break down a gas tube type

I attach below some screenshots from my IC-7300 spectrum scope set at 2.5KHz wide while transmitting nearby into a 50 ohm dummy load on the 5 bands (20,17,15,12,10M). Settings for each band on the

Pardon me if this has been asked before. Regarding the "20/80m BPF TXswap". Am I correct in assuming that this is in reality is a BPF 1 and BPF 3 swap without regard to which band or slot in the band

It sounds like the Terminator movie :)

Hi I found them from a supplier in Turkey search for "precision IC socket" https://www.direnc.net/6-li-precision-soket 73 de muhsin TA1MHS

There isn't any way to maintain the current real time clock when powered down as it is run in the main processor code. Not the low current RTC peripheral. There would be potential ways to do a partial

Luc you rased the question on the rules for the challenge as you used a Bingo on 80 m. To my understanding the challenge gives points to an operator using a QRP Labs rig . Any non QRP Labs rig should

That pretty much closes the case :/ thanks, @Hans anyway. BTW is there a way to make it keep the time when powered off but with power supply kept attached?

busy 13:00 session on a good 20 m band but no luck with the US QCXes. Some QMX also around and? OH8TX with a QMX a new one for me 19:00 difficult QSO with PA0CMU on 40. Very poor condx and the band

Installation of a lightning arrestor which is attached to a ground system at the shack end of the feedline will help divert common mode currents and noise (and hopefully, lightning energy) to

What is a name or part number for the sockets? I've not seen them before, but like the idea. Thanks, Don KD5NRO

Lynx, Jeff Moore W1NC repairs QRP-Labs radios for others.? He is recognized as one of the best repair people in the group.? He ran into a weird problem on a QMX related to the frequency that

Hi Just an idea /g/QRPLabs/message/116758 73 muhsin TA1MHS

Thankyou Evan for putting me onto the right track. So below is the picture of the windings as I made them originally. (I saw a picture of them a bit like that in the manual? page 37, so made them

Hello, The lockup occurs wether the QMX is in practice mode or not (happened to me twice last week while in QSO-s). I believe the issue was reported before, along with other CW keyer glitches.