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1. Re: [Orion] Topband: BDR redux (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 05 Feb 2004 16:41:17 -0500
We've been enjoying "AGC Treshold" for many decades, although we didn't use the name until the recent marketing breakthroughs :-) AGC threshold determines the point above which AGC loop is operationa
/archives//html/Orion/2004-02/msg00005.html (7,231 bytes)

2. Re: [Orion] Re: [TenTec] Topband: BDR redux (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 05 Feb 2004 18:41:06 -0500
This is true. It's certainly better to have a separate AGC threshold, as in Orion. Unfortunately, AGC Threshold control on Orion is an ergonomic disaster. It should have had a knob assigned to itself
/archives//html/Orion/2004-02/msg00008.html (7,526 bytes)

3. Re: [Orion] Re: [TenTec] Topband: BDR redux (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 05 Feb 2004 19:26:57 -0500
That's exactly too much for me :-) I'm not sure either, just a though that it's position should be indicated in relation to signal levels presented on the S meter. Those 5-digit microvolts (with ~1 d
/archives//html/Orion/2004-02/msg00010.html (7,475 bytes)

4. [Orion] Orion's AGC THRESHOLD is in error by 21 (9) dB (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Wed, 11 Feb 2004 13:34:15 -0500
Orion's AGC Threshold control is useful for avoiding AGC action on noise peaks. Such an action tends to intermodulate a weak signal with noise, significantly reducing readability. The same benefit wa
/archives//html/Orion/2004-02/msg00018.html (8,629 bytes)

5. [TenTec] A test of Orion's external CW keying (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 26 Feb 2004 21:53:39 -0500
A test of Orion's external CW keying [Please read using a fixed with font such as Courier New.] Introduction == TenTec's Orion is being described as having state-of-the-art CW keying. ARRL's "Product
/archives//html/Orion/2004-02/msg00049.html (14,893 bytes)

6. [Orion] A test of Orion's external CW keying (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 26 Feb 2004 22:10:56 -0500
A test of Orion's external CW keying [Please read using a fixed with font such as Courier New.] Introduction == TenTec's Orion is being described as having state-of-the-art CW keying. ARRL's "Product
/archives//html/Orion/2004-02/msg00050.html (15,445 bytes)

7. [TenTec] Re: A test of Orion's external CW keying (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Thu, 26 Feb 2004 22:30:06 -0500
My post appears in the archive: http://lists.contesting.com/archives/html/TenTec/2004-02/msg00845.html but I didn't get it by email. This happened once before. Why? Length or contents? 73, Sinisa YT1
/archives//html/Orion/2004-02/msg00051.html (7,110 bytes)

8. [Orion] USING ORION'S RECEIVER (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Fri, 27 Feb 2004 22:59:54 -0500
A six-page PDF file (40 KB) titled "USING ORION'S RECEIVER" is available for download from my web site: http://www.geocities.com/va3ttn Topics covered include: * initial adjustments, * setting the op
/archives//html/Orion/2004-02/msg00054.html (6,758 bytes)

9. Re: [Orion] USING ORION'S RECEIVER (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sun, 29 Feb 2004 23:36:54 -0500
It was my pleasure. I took advantage of the fact that AGC THRESHOLD does not affect signal to noise ratio significantly and specified 15 dB to be on the safe side. "Exact" noise level is difficult to
/archives//html/Orion/2004-02/msg00060.html (7,950 bytes)

10. Re: [Orion] USING ORION'S RECEIVER (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sun, 29 Feb 2004 23:49:37 -0500
I'm glad you like it, thanks. Thanks for the information, I'll add a reference to Spectrogram and a link to Electraft's page. Well, I simply took them out and used a network analyzer :-) 73, Sinisa Y
/archives//html/Orion/2004-02/msg00061.html (7,736 bytes)

11. [Orion] Orion's audio outputs explained (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Tue, 30 Mar 2004 19:54:46 -0500
There are three DACs (called Left DAC, Right DAC and Speaker DAC) generating three audio voltages which are then fed to headphone and speaker amplifiers and LINE OUT, LEFT AUX and RIGHT AUX outputs.
/archives//html/Orion/2004-03/msg00050.html (8,739 bytes)

12. Re: [Orion] Orion's audio outputs explained (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Tue, 30 Mar 2004 22:24:53 -0500
This is a sad fact. And this is an educated guess :-) 73, Sinisa YT1NT, VA3TTN _______________________________________________ Orion mailing list Orion@contesting.com http://lists.contesting.com/mail
/archives//html/Orion/2004-03/msg00053.html (7,273 bytes)

13. [Orion] Orion firmware version for WAE CW contest (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Tue, 10 Aug 2004 03:49:22 -0400
What would be the recommended firmware version for this weekend's WAE CW contest? I was too busy for some months and couldn't follow/test current versions. Going to YT6A's hilltop location on the Adr
/archives//html/Orion/2004-08/msg00003.html (6,716 bytes)

14. Re: [Orion] AGC Threshold (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sun, 07 Nov 2004 15:09:57 -0500
The AGC Threshold setting certainly determines the point at which AGC action begins to attenuate the signal. But, for convenience, the gain is changed simultaneously, preventing volume changes for si
/archives//html/Orion/2004-11/msg00024.html (7,116 bytes)

15. Re: [Orion] AGC Threshold (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Tue, 09 Nov 2004 14:35:33 -0500
When AGC Threshold is increased, gain is immediately reduced in the same proportion. No automatic action here, and AGC never "tries" to do anything else apart from maintaining constant volume. There
/archives//html/Orion/2004-11/msg00031.html (8,870 bytes)

16. Re: [Orion] Orion Issues or Not - kinda long (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sat, 11 Dec 2004 04:25:06 -0500
I did some measurements recently and it seems that SWEEP hardware takes a single 4 ms sample every 2 seconds. This represents 0.2 % chance of hitting upon a short (intermittent) signal, and 99.8 % ch
/archives//html/Orion/2004-12/msg00024.html (7,431 bytes)

17. [Orion] Re: [TenTec] Orion (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sat, 11 Dec 2004 04:27:33 -0500
It is true that some parts of Orion are not protected particularly well against RF currents. These include front panel, CPU, DSP, codecs and audio amplifiers. However, your choice of antenna is, I be
/archives//html/Orion/2004-12/msg00025.html (7,173 bytes)

18. Re: [Orion] 500Hz & 250 Hz Center Frequency Adjustment (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Wed, 19 Jan 2005 02:45:03 -0500
You can find a procedure for filter alignment and other things at http://www.geocities.com/va3ttn 73, Sinisa YT1NT, VE3EA _______________________________________________ Orion mailing list Orion@cont
/archives//html/Orion/2005-01/msg00028.html (6,826 bytes)

19. Re: [Orion] Orion with Top Ten Devices Band Decoder (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Sat, 02 Apr 2005 16:19:44 -0500
Orion's outputs are open-collector, no voltage is sourced. 1.4 V comes from the band decoder, not from Orion. For reliable operation pull up resistors should be added. 73, Sinisa YT1NT, VE3EA YU DX C
/archives//html/Orion/2005-04/msg00006.html (7,455 bytes)

20. Re: [Orion] O2 versus Orion (score: 1)
Author: Sinisa Hristov <shristov@ptt.yu>
Date: Mon, 09 Jan 2006 12:12:28 -0500
Zero or not, it is the same concept of beating and frequences can be compared to well below 1 Hz that way. 73, Sinisa YT1NT, VE3EA _______________________________________________ Orion mailing list O
/archives//html/Orion/2006-01/msg00017.html (6,900 bytes)


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