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
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
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. INRAD Model 752 2.1 khz filter for the 9 mhz IF .... $85. All filters work like new. INRAD filters come in original boxes. Jim N4AL n4al@arrl.net -- Kevin P
Dammit. QRP-L is reply direct to sender and Tentec defaults to reply to all. Sorry about the spam. I'll take the 752 if it's still available. INRAD Model 752 2.1 khz filter for the 9 mhz IF .... $85.
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 (
So that was K3 not K2 versus Orion (sounds like a boxing match). The K3 has a much "bigger" UI than the K2. <http://www.elecraft.com/K3/K3_640_v2.jpg> <http://www.elecraft.com/K3/K3_big_v2.jpg> This
Wow! I didn't think anyone was going to reply. Not quite enough to start our own Argosy email list then :-) And you have a pair of 1496's too. For the rest of you with Argosy's (particularly the Argo
I don't think I will like the display on the K3. It seems to be the same as the K2 and I never cared for it much, except that its current drain was low (which was great). This is rather odd. The K2
Do you know what the software revision is? If you take the lid off it will be on the EPROM label? Or conversely when was this 320 made? Thanks, Kevin N7WIM Was sold but the buyer changed his mind so
ARRL reviewed of the first version Ten-Tec Argosy serial number 525 00026 in October 1982. <http://www2.arrl.org/members-only/prodrev/pdf/pr8210.pdf> This is the original version of the Argosy that u
When did Ten-tec switch to Schottky diode ring mixers? If you have a Corsair or Corsair II you can help by looking at the schematic in the manual for the RX mixer in your TT rig. Let me know the diod
Excellent. Thanks Steve for that data point. And Don, NN8B, who replied too. Both have the Corsair 2. So they had switched by 1986. Anyone with an original Corsair (Corsair 1, so to speak)? I think t
I know that feeling! Another question: Is it still a MOSFET (like the Omni C) or did they make the change to a higher emitter current BJT such as the 2N3886 (like the Argosy 1 second revision) or 2N5
We have a winner! Actually three winners George K3GP, Duane, N9DG and Don, NN8B. Yes, the MBD-101 is a discrete schottky diode. So the Cosair was the first Ten-tec radio to use a schottky diode ring
I suspected that might be the case. So the MOSFET RF amp (with 5mA Ids) finished with the Omni design. Not too sure why. A MOSFET RF preamp with decent drain current/ correct biasing can have interce