Thank you, Bojan! 73! Simon

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Hi, my version of PTT to GND is this, however it requires the connection to the ring to be disconnected on the PCB. So, either +5V PTT at the ring or GND PTT at the tip of X2. 73 Bojan S53DZ

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On Fri, Feb 21, 2020 at 03:50 AM, ND6P wrote: Jim Dr Jim, Do you mind sharing the schematic/pictures again? Groups.io doesn't seem to store the files for a longer period and I'm currently looking into

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Hi Rick, Thanks for the update. I have 5 of the ZL2PD boards coming and will try the 3dB pad in front of it. I also may still try my 15dB gain termination insensitive amplifier and see how that looks,

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I have made some changes to the SigGen interface to the variable attenuator. Originally I used a blocking capacitor and a unun. I have now switched to a blocking capacitor and a simple 50 ohm impedanc

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Hi Rick, Thanks for the additional data. I will do some experimentation on my SigGen here and see what I can do to improve the output consistency. The ZL2PD attenuator looks very interesting, too, and

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Gregg I have put together a couple of quick graphs (my apologies in advance for the poor quality). The first is the SigGen output at 1 MHz increments from 3 to 28 MHz. Not quite as flat as Hans' with

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Dear Rick, Thanks for the comments on the QRP Labs Signal Generator. I am going to incorporate them into mine. Your email is giving me the boost to get it done. It is a great unit. this just makes it

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Hi Rick, I also saw highly variable output level on my SigGen with 6 LPF filter board combo, depending on the frequency. I tried using a single BS170 buffer, but still got quite a variation in output

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With ZL2PD Andrew's permission, I have uploaded his Variable Attenuator file to the Signal Generator folder in the files section.

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FYI in the current schematic J3 and J4 are reversed. J4 is the 12 VDC input.on the PCB.

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I couldn't get it to work 5 minutes ago BUT it looks like the site is back!

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The website link for ZL2PD loads very slowly, but eventually worked for me. See his schematic, attached. 73, Gregg W7GRM

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That looks like an excellent piece of work. Unfortunately I couldn't get the ZL2PD website to work. Roy WA0YMH

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I've just completed some mods to the QRP-Labs HF SigGen kit. They include a simple buffer/impedance matching mod (suggest by ZL1UJG) and the addition of a variable attenuator. The attenuator, designed

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Larry and Curt Thank you for the excellent information. My tone memory isn't as good as I'd like but to Curts point perhaps my perception of operation etiquit was incorrect. I always thought it was go

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I concur that the IF pass and is narrow enough that your signal should arrive in the other station's receiver. Yes some rigs do have a visual indicator of zero beat and there may be kits available. Bu

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Bryan: so basically what you want is to be able to zero beat your 700 Hz sidetone against a transmitting station receive tone to ensure you are zero beat with that station? From looking at the schemat

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Thanks Larry, but you missed my point which was, "I know I can plow through e menus and put the rig in practice mode, but this is tedious when time is of the essence to catch that DX QC." The question

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Yes Menu 4.7 enable practice mode. Larry NA0F

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