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Latest Topics

Topic Created Posts Views Last Activity
AA4PB Audio Interface: Any advice? Nov 7th 2015, 19:31 4 1,529 on 19/12/17
Feeding an off-center fed dipole Jul 8th 2015, 23:47 3 956 on 9/7/15
Cabrillo template for ARRL DX SSB? Mar 10th 2015, 19:26 3 1,255 on 22/11/16
W6MUR Article on the Z Match? Jan 15th 2015, 23:54 3 1,276 on 16/1/15
ARRL gain scaling definition? Nov 30th 2014, 00:35 4 1,181 on 4/12/14

Latest Posts

Topic Author Posted On
AA4PB Audio Interface: Any advice? NV2K on 19/12/17
Here's an update: The connection labelled "Line In" is actually the line out, and vice-versa. I do not know what the impact will be of having swapped the primaries and secondaries of the transformers because of this, but suspect it will be small if not non-existent because they are 1:1 and are used for isolation only.

I would like to get the PTT from the right audio channel, as very few computers these days are equipped with a TIA-232 serial interface. another confirmation process K4WY on 2/3/17
If you wish to try this service, I hope you have better success than I do.

There are no instructions to speak of, the process does not appear to be intuitive, and there are very few users. I have several matched QSLs there, yet no confirmations. I am at a complete loss as to why this is so.

Good luck confirming V43.
Attic Antennas apr1350 on 23/7/16
Without a ton of loading, a wire that fits into the typical attic won't do much on top band, and, agressively loaded, the 2:1 SWR bandwidth will be painfully narrow, and most radiation would be near-vertical. Those who say it won't work might be right -- about 160m. I hope that's not a deal-breaker for you!

Simple wire antennas often pleasantly surprise me. If you can make more than one excursion to the attic, how about hanging a simple dipole for 14MHz as a test? 33 feet, from end to end, with a SO-239 in the middle. Try an A/B comparison with the vertical, keeping in mind that lately there has been a lot of QSB on 20m. This can at least tell you if there's enough metal flashing, chimneys, etc., to keep your signal from getting out.

CENT WAS Plague AD4AA on 12/6/16
Quote by AD4AA
For anyone interested I received the plague 6/01/15 from UPS.

I wish you a speedy and complete recovery, OM!
Flash player Making site unusable KBurton on 27/5/16
Flash has security holes and is basically an end-of-life product. PDF and DJVU are good formats for e-mag versions of print magazines and today are trivial to generate.

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