- 21. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Ken Brown <ken.d.brown@hawaiiantel.net>
- Date: Sun, 22 Jun 2008 15:08:11 -1000
- Okay Jerry, I'll try it. Since we were talking about a Ten-Tec Hercules II amplifier, what frequency between 1.8 and 29.7 MHz would you suggest I try, in order to see the most significant effect of t
- /archives//html/TenTec/2008-06/msg00400.html (11,210 bytes)
- 22. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Jim WA9YSD <wa9ysd@yahoo.com>
- Date: Tue, 24 Jun 2008 03:24:26 -0700 (PDT)
- Ok, 0.3 watts of insertion loss, right? Now ANSI specs for pressure gauges are rated Class A,B,C,D. Class D being the least accurate, and commonly found on Air pressure tanks and compressors to put u
- /archives//html/TenTec/2008-06/msg00410.html (8,712 bytes)
- 23. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
- Date: Tue, 24 Jun 2008 10:14:09 -0600
- Meters are generally rated with error a fixed % of full scale. Typical panel meters run 10%, some 3%, lab grade meters 1% or better. That's the meter alone. The couplers in a Bird add to the error bu
- /archives//html/TenTec/2008-06/msg00411.html (10,004 bytes)
- 24. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Ken Brown <ken.d.brown@hawaiiantel.net>
- Date: Tue, 24 Jun 2008 20:08:40 -1000
- The Bird Thruline RF Directional Wattmeter model 43 accuracy is specified as +/- 5% of full scale reading. That means that if you have a 500 watt element (model 500H) measuring the output Ten-Tec Her
- /archives//html/TenTec/2008-06/msg00418.html (10,010 bytes)
- 25. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
- Date: Wed, 25 Jun 2008 09:34:47 -0600
- Good points. Two problems. I have more confidence that the meter will indicate something with some reflected power, but the meter indication won't go to zero, providing Bird still gets good diodes wi
- /archives//html/TenTec/2008-06/msg00429.html (11,670 bytes)
- 26. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Jim WA9YSD <wa9ysd@yahoo.com>
- Date: Wed, 25 Jun 2008 17:53:24 -0700 (PDT)
- I had to bring up the tolerance of the meter itself. Could not resist cause it brings into focus real accuracy and the misnomers that tolerances play on it.. It is more accurate than 5% full scale an
- /archives//html/TenTec/2008-06/msg00446.html (8,817 bytes)
- 27. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
- Date: Wed, 25 Jun 2008 22:20:46 -0600
- That meter tolerance is important. And the 30 microamp meter makes errors more likely because of pivot or taut band friction. There's not much horsepower available to fight the springs and pivot fric
- /archives//html/TenTec/2008-06/msg00448.html (10,468 bytes)
- 28. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Ken Brown <ken.d.brown@hawaiiantel.net>
- Date: Wed, 25 Jun 2008 19:12:00 -1000
- Jim, My data is straight out of the instruction book for the Bird Thruline Wattmenter model 43. The accuracy is stated as +/- 5% of full scale. Pure and simple, with no mention of what part of the sc
- /archives//html/TenTec/2008-06/msg00450.html (9,938 bytes)
- 29. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
- Author: Jim WA9YSD <wa9ysd@yahoo.com>
- Date: Thu, 26 Jun 2008 15:35:58 -0700 (PDT)
- So with the 250 watt element, +-5% Full scale so at 150 to 250watts full scale +-12.5 watts, 50 to 150watts so at that spot it would be +-7.5 watts and 0-50watts it would be +-2.5 watts all with the
- /archives//html/TenTec/2008-06/msg00464.html (8,458 bytes)
This search system is powered by
Namazu