Interesting tip. In the Omni series C (TT 546 Series C) I not that design was rather cobbled together to add the WARC bands. They had decided on low side LO so they used that for 17m too. So 4MHz cry
Of course. The mixing will invert the sideband even though the tuning direction isn't changed. Better than lots of RF in the IF strip. At least they wised up on the next design. Ah, the perils of put
OT but too much to resist LI2B operated by LA7Y <http://www.arrl.org/news/features/2003/03/05/1/?nc=1> <http://www.arrl.org/news/features/2003/03/05/1/sibebar.html> <http://www.infoage.org/p-86Kontik
The other thing to consider is good old fashioned cross-over distortion at low audio levels. This seems to be the reason TT suggested a pad (of a couple of hundered ohms) in series with the headphone
You are confusing two usages of "out of phase": 1. having 180 degrees (pi radians) phase difference 2. not being in phase -- having a phase relationship of anything other than zero phase difference A
I'll take the 752 if it's still available. -- Kevin Purcell kevinpurcell@pobox.com _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.co
Dammit. QRP-L is reply direct to sender and Tentec defaults to reply to all. Sorry about the spam. -- Kevin Purcell kevinpurcell@pobox.com _______________________________________________ TenTec maili
This is very common amongst VHF/UHF weak signal DXers (including EMEers) too. It's also little know but wider bandwidths for SSB improve intelligibility too especially for the very weak signal case (
Remember that 60m isn't a full privilege amateur band. Yet. It's a domestic, secondary allocation shared with fixed/mobile service for evaluation purposes hence the "worse than secondary", "odd frequ
RBW48, Murmansk? This seems like a rather difficult and odd route to Vancouver. Though with the sunspot numbers perhaps not -- PCA is perhaps not so bad right now. Not a great circle view but this ni
Grant, One comment this: Frank was "promoting" or clarifying the difference between a general purpose SDR system and a DSP-based radio. The SDR system he has written free software (i.e. GPLed not mer
The question for a company like TenTec is "where is their added-value". I would think most of their added-value is in their hardware design rather than in their software design (though as the latter
I was asking what value their closed software adds that would be lost if they opened their software. Do they have trade secrets in their implementation that add value that they wouldn't want others t
Especially as Ten Tec holds a patent on the Jones Filter (until 2009). Interesting read. <http://www.google.com/patents?id=blsfAAAAEBAJ> I suspect Elecraft aren't using it (though I'd love to hear th
Hmmm, that's not what I wrote ... see the multiple levels of quoting. I provided the links. And yes I read them. Jones filter is a ten tec patent. Jones filter is a useful compromise for smaller devi
Why not try to troubleshoot it rather than randomly changing parts? Do you have a signal source for audio and a tunable one for RF? Start injecting an AF signal at the speaker audio amp and work back
I don't know about this particular part on this particular board but I've done a similar fix for the original Apple Airport. It had badly ventilated case and runs hot but they didn't use a low ESR hi
For background see http://en.wikipedia.org/wiki/Electronic_amplifier I don't know for sure but I would guess AB (as that's what everyone uses). About 50% efficiency at best. Yes :-) But you have to w
You can build AB or B amps from single or multiple devices. AB or B class amps don't have to be paired. The AB or B just refers to how the are switched on during the cycle. Just having one device wil
There was a habit some time ago of "power inflation" in marketing by quoting the DC input power rather than the output power. This seems to have seeped into various websites documenting the gear who