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141. Re: [TenTec] Omni VII Digital (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Tue, 12 Aug 2014 21:27:31 -0400; 0 DBM is defined as 1 milliwatt. At 50 ohms, that's 0.22 volts for 0 dbm. S9 is -73 dbm so 0 dbm is S9+73. -10 dbm is .1 milliwatt. -20 dbm is .01 milliwatt -30 dbm is .001 milliwatt -40 dbm is .0001; /archives//html/TenTec/2014-08/msg00192.html (11,628 bytes)
142. Re: [TenTec] Omni VII Digital (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Tue, 12 Aug 2014 22:23:51 -0400; I didn't realize the discussion was about audio. 0 DBM is defined as 1 milliwatt. At 600 ohms, that's 0.77 volts for 0 dbm. S9 is -73 dbm so 0 dbm is S9+73. -10 dbm is .1 milliwatt. -20 dbm is .01 mi; /archives//html/TenTec/2014-08/msg00194.html (12,461 bytes)
143. Re: [TenTec] 160 Meter Problem (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Mon, 18 Aug 2014 10:36:42 -0400; Was the Omni VI drawing lots of current from the power supply when you keyed it on 160? Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com I intend to run the Omni VI+ on a dummy load; /archives//html/TenTec/2014-08/msg00264.html (10,766 bytes)
144. Re: [TenTec] Eagle Remote Operation (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Sat, 30 Aug 2014 18:21:22 -0400; You can also easily do this using the N4PY Orion program and Skype. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com Randy Moore AI4CO I spent some time this morning perusing the arc; /archives//html/TenTec/2014-08/msg00375.html (9,056 bytes)
145. Re: [TenTec] Eagle Remote Operation (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Sat, 30 Aug 2014 20:23:15 -0400; You run a copy of N4PY at the radio computer and a copy at the operator location computer. The two copies of N4PY talk to each other over the internet for complete radio control. You also run Skype b; /archives//html/TenTec/2014-08/msg00377.html (10,757 bytes)
146. Re: [TenTec] Eagle Remote Operation (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Sat, 30 Aug 2014 22:00:10 -0400; You can either type CW from the Keyboard or use a K1EL winkey keyer to send CW. My program then sends the characters over the internet and sends them on to the radio. Carl Moreschi N4PY 58 Hogwood Rd; /archives//html/TenTec/2014-08/msg00379.html (12,340 bytes)
147. Re: [TenTec] Eagle Tuner (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Tue, 09 Sep 2014 20:46:20 -0400; S units are a logarithmic scale and you don't use the ratio of S units for signal to noise. If both the signal and the noise are reduced by 3 S Units, which is 18 db, the actual signal to noise ratio; /archives//html/TenTec/2014-09/msg00111.html (11,933 bytes)
148. Re: [TenTec] Oooo-PS (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Sat, 20 Sep 2014 14:59:03 -0400; Where I live now the only shipper that is practical for me is USPS. I've shipped about 20 packages over the past year that way with no problem at all. Over the years I have seen problems with both Fe; /archives//html/TenTec/2014-09/msg00285.html (10,677 bytes)
149. Re: [TenTec] Argo V and digital modes (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Tue, 23 Sep 2014 14:56:19 -0400; The issue is not IMD, it is sidebands from the transition between the two frequencies. If that is not done carefully, the sidebands can cause a wide signal. Carl Moreschi N4PY 58 Hogwood Rd Louisburg; /archives//html/TenTec/2014-09/msg00354.html (13,071 bytes)
150. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Wed, 24 Sep 2014 15:27:10 -0400; I can tell you the Eagle has one of the best QSK's I have ever used. I believe the 18 msec is the delay from energizing transmit circuitry to starting the CW keying waveform. That delay is to give am; /archives//html/TenTec/2014-09/msg00370.html (10,247 bytes)
151. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Wed, 24 Sep 2014 16:45:29 -0400; The amp is energized immediately. The delay is just for RF, not amp switch to transmit. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com Is that with an amp or barefoot? If with an a; /archives//html/TenTec/2014-09/msg00378.html (10,142 bytes)
152. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Wed, 24 Sep 2014 19:08:43 -0400; At 40 wpm, a dit time is 30 msec. So why would an 18 msec delay remove QSK even at 40 wpm. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com On 9/24/2014 6:26 PM, Jim Brown wrote: On; /archives//html/TenTec/2014-09/msg00392.html (11,177 bytes)
153. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Wed, 24 Sep 2014 19:40:46 -0400; No it does not shorten the dit. Everything is just delayed by 18 msec. The start of the dit is delayed by 18 msec but the end of the dit is also delayed by 18 msec, causing the total length of the di; /archives//html/TenTec/2014-09/msg00396.html (11,216 bytes)
154. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Wed, 24 Sep 2014 20:11:00 -0400; Actually most radios do work that way. Take a look at the CW RF pictures in QST. There are two traces in the scope pictures. One shows key closure and the other shows RF waveform. Most show the RF wa; /archives//html/TenTec/2014-09/msg00400.html (11,501 bytes)
155. Re: [TenTec] din connector, etc. (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Thu, 25 Sep 2014 08:05:35 -0400; A lot of the newer radios are now looking good in this respect also. The Yaesu FT3000 and FT5000, Elecraft K2 and K3, Flex 6000 series, are all good on this now. Carl Moreschi N4PY 58 Hogwood Rd Loui; /archives//html/TenTec/2014-09/msg00411.html (11,300 bytes)
156. Re: [TenTec] Another retro question - Argosy-Century (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Mon, 06 Oct 2014 13:37:58 -0400; The century 21 was a very different animal. It used a direct conversion receiver. This means you can hear a station on both sides of zero beat. But the radio is really a winner for a CW operator. It; /archives//html/TenTec/2014-10/msg00084.html (8,828 bytes)
157. Re: [TenTec] WRTC-18 (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Fri, 10 Oct 2014 19:22:20 -0400; I used to run a Heath HW-8 which ran 2 watts. I managed to to work VK with it on 21 mhz. You just never know how efficient propagation can be. Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www; /archives//html/TenTec/2014-10/msg00122.html (8,499 bytes)
158. Re: [TenTec] OMNI V...OMNI V... (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Sat, 11 Oct 2014 19:56:50 -0400; I have decided to do another run of Omni V chips. See the Omni V chip page on my website at www.n4py.com Carl Moreschi N4PY 58 Hogwood Rd Louisburg, NC 27549 www.n4py.com Missed this one. Anybody els; /archives//html/TenTec/2014-10/msg00141.html (8,028 bytes)
159. Re: [TenTec] Argo VI (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Mon, 13 Oct 2014 12:54:12 -0400; I just tried mine here. The power setting goes from 0 to 10 in 1 watts steps. I don't know how accurate my meter is at very low power but at the 1 watt setting it reads 0.2. At the 10 watt setting it; /archives//html/TenTec/2014-10/msg00161.html (8,948 bytes)
160. Re: [TenTec] Orion II Problem (score: 1): Author: Carl Moreschi <n4py3@earthlink.net>; Date: Thu, 16 Oct 2014 15:41:01 -0400; Sounds like the classic "clean the connectors behind the front panel" problem to me. There's a few connectors that over more than 100 connections and because Tentec did not use gold pins, they need t; /archives//html/TenTec/2014-10/msg00177.html (10,769 bytes)

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