- 41. Re: [TenTec] guide to adjusting Orion receiver; filters and performance (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Wed, 3 Mar 2004 22:37:59 +0100
- noise levels, well after sunset on this rather remote area of the Garden Island of Kauai.I vividly remember low noise levels during my short Maui island operation as KH7/N1YU in 1996.I experienced e
- /archives//html/TenTec/2004-03/msg00094.html (8,870 bytes)
- 42. Re: [TenTec] Orion AVC (score: 1)
- Author: "Marijan Miletic" <s56a@bit.si>
- Date: Mon, 9 Feb 2004 22:01:56 +0100
- If TT Worshipers Cult forum accepts that slow AGC might be used on CW, they may even consider life without QSK and CW PTT need :-) On the more serious note, DSP RX needs a very tight AGC loop in ord
- /archives//html/TenTec/2004-02/msg00255.html (8,218 bytes)
- 43. [TenTec] TenTec] Rubbing the crystal ball...gently (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Thu, 12 Feb 2004 11:15:53 +0100
- It certainly is if you are going back to Collins engineers, the last ones in USA with some HF knowledge from 1980's. Contribution of DSP and DDS would be mainly in marketing fields :-) 73 de Mario,
- /archives//html/TenTec/2004-02/msg00346.html (7,083 bytes)
- 44. [TenTec] Re: A test of Orion's external CW keying (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Fri, 27 Feb 2004 15:03:50 +0100
- things into some perspective. One needs Software Defined Randomness for similar performance! I know what my IC-735 does when keyed from circuit diags. Cult Ayatollahs are not very happy these days :
- /archives//html/TenTec/2004-02/msg00861.html (7,845 bytes)
- 45. [TenTec] How We Buy Things (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Thu, 01 Jan 2004 09:37:23 -0500
- controlled function by connecting the computer CW PTT output to the amplifier control input in parallel with T/R output of the radio. One should measure amplifier PTT values and connect PC interface
- /archives//html/TenTec/2004-01/msg00005.html (7,400 bytes)
- 46. [TenTec] Sloper (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Sat, 03 Jan 2004 07:18:26 -0500
- Windom antenna would cover 10 - 160 m but it should be 78 m (260 ft) long and even YT1NT couldn.t provide you with a good balun! 73 de Mario, S56A, N1YU Disclaimer: I use DL Hari Windom but I had to
- /archives//html/TenTec/2004-01/msg00064.html (8,130 bytes)
- 47. [TenTec] Orion Prog AGC Threshold (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Sat, 03 Jan 2004 07:24:44 -0500
- inside a menu would be useful. I have also suggested that more range at the top end of the AGC threshold would also be a useful change. Gary and the programmers are aware of these but I don't know w
- /archives//html/TenTec/2004-01/msg00065.html (8,021 bytes)
- 48. [TenTec] Orion Prog AGC Threshold (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Sun, 04 Jan 2004 17:15:34 -0500
- I very much doubt that as S9 input voltage changes with preamp. Circuit diags don't help much as meter is controlled by DAC. I just worked some 500 stations in ARRL RTTY Round-up. While digging weak
- /archives//html/TenTec/2004-01/msg00101.html (8,051 bytes)
- 49. [TenTec] Orion Prog AGC Threshold (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Mon, 05 Jan 2004 06:36:24 -0500
- My reasoning mistake as I stayed in the loop due to high possible AGC threshold of 200 uV. This is some 60 dB of linear gain on 0,2 uV but it can be achieved with analog circuits. I can see now more
- /archives//html/TenTec/2004-01/msg00115.html (8,339 bytes)
- 50. [TenTec] Orion Voice Memories (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Mon, 05 Jan 2004 15:26:38 -0500
- very responsive to constructive, well thought out suggestions. http://www.rfsquared.com/Orion/565Hist.txt is a very interesting reading! I hope XP firmware version comes soon :-) 10/22/03 Version 1.
- /archives//html/TenTec/2004-01/msg00141.html (7,909 bytes)
- 51. [TenTec] Hi Cut / Lo Cut - Orion (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Mon, 05 Jan 2004 17:18:38 -0500
- KISS explanation would be: BW = Hi Cut - Lo Cut PBT = (Hi Cut + Lo Cut) / 2 Move left or right filter display edges and PBT mark in the middle. Sometimes I wonder how USA managed to land a robot on
- /archives//html/TenTec/2004-01/msg00150.html (8,749 bytes)
- 52. [TenTec] Orion Filter Controls (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Mon, 05 Jan 2004 17:29:02 -0500
- SSB, you really need to fix PBT to +150 to 160 for maximum intelligibility. What you are doing is shifting a very narrow passband to a better area of the voice spectrum. Instead of your 1700 Hz filt
- /archives//html/TenTec/2004-01/msg00151.html (9,385 bytes)
- 53. [TenTec] Hi Cut / Lo Cut - Orion (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Tue, 06 Jan 2004 07:03:05 -0500
- as many customers as possible, with everyone finding his favourite knob out there :-) It is known as "legacy curse" in computers field! That's the reason I used PBT instead of C_enter F_requency. Co
- /archives//html/TenTec/2004-01/msg00183.html (8,389 bytes)
- 54. Re: [TenTec] Hi Cut / Lo Cut - Orion (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Tue, 06 Jan 2004 07:26:21 -0500
- 7 MHz CW band passes through, gets amplified by ~17 dB and reaches the second, mixer which is much weaker than the first one. G3RFP made a real life RX analysis of 40 m in noisy EU environment and c
- /archives//html/TenTec/2004-01/msg00184.html (8,316 bytes)
- 55. [TenTec] Thoughts about the "Windom" or OCF antenna (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Fri, 09 Jan 2004 06:28:44 -0500
- modeling; Considering antennas, I'd prefer YT1NT BSc EE knowledge over hyperactive wordsmith W4RNL PhD Philosophy. There was an excellent body of antennas knowledge in YU culminating in late Branko
- /archives//html/TenTec/2004-01/msg00272.html (8,458 bytes)
- 56. [TenTec] TenTec] Jupiter Tested in January RadCom (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Thu, 15 Jan 2004 18:39:02 -0500
- anywhere but they tested IP3 on 7 MHz with a multitude of spacing.. I finally managed to read Radcomm G3SJX test of Jupiter. He likes software download features. IP3 is +10 dBm on 21 MHz at 50 kHz,
- /archives//html/TenTec/2004-01/msg00493.html (7,257 bytes)
- 57. [TenTec] Jupiter Tested in January RadCom (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Fri, 16 Jan 2004 03:25:31 -0500
- They should read S9+60dB for so many milivolts :-) 73 de Mario, S56A, N1YU
- /archives//html/TenTec/2004-01/msg00498.html (6,863 bytes)
- 58. [TenTec] IF DSP vs. AF DSP (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Fri, 30 Jan 2004 13:01:28 +0100
- Todays HF RX technology does bandwidth limited IF DSP at only 36 kHz or baseband processing at 0-3 kHz. There are more cycles available at IF carrier and better detection results can be achieved. TS-
- /archives//html/TenTec/2004-01/msg00893.html (8,251 bytes)
- 59. [TenTec] IF DSP vs. AF DSP (score: 1)
- Author: "Marijan Miletic, S56A" <s56a@bit.si>
- Date: Sat, 31 Jan 2004 13:40:23 +0100
- narrow bandwith or noise reduction ? to prevent A/D overload ? John Recommended reading is http://www.doug-smith.net/digitalagc.htm I always keep AGC on slow as I hate noise keying. 73 de Mario, S56
- /archives//html/TenTec/2004-01/msg00910.html (8,012 bytes)
- 60. Re: [TenTec] Orion in CQWW CW (score: 1)
- Author: "Marijan Miletic" <s56a@bit.si>
- Date: Mon, 01 Dec 2003 16:09:21 -0500
- Reduction was quite useful for very weak signals at the noise floor. If the above is true then Qrion beats the laws of physics! W4PA discovery of static snow noise reduction with unique AGC settings
- /archives//html/TenTec/2003-12/msg00036.html (7,465 bytes)
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