Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR, Power Genius, Tuner Genius and Antenna Genius Software?
SmartSDR v3.8.19 and the SmartSDR v3.8.19 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
SmartSDR v3.8.19 and the SmartSDR v3.8.19 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
Interesting observation
Roger Rockwell/na4rr
Member ✭✭
FLEX 6700 Interesting observation this evening. I have been using a 6 element quad for six meters. I was given a 5 element m2. So I wanted to do A/B test. My house is 70 feet long and runs North-South. The quad is on a 40ft rhon 25 tower on the North end. On the South end I have a 50 ft crank-up with my hexagonal beam. I have about equal runs of LMR-400 feeding each antenna. I took down the hex and put the M2 on the crank-up. When extended the m2 is within a foot of being the same height as the center of the quad. The Gulf Coast 6m net was tonight and the control is in MS (271 deg 172 miles, according to qrz) Band conditions were poor which was good for A/B testing. I was using headphones. Master speaker was set to 0. I opened one panadapter; rec antenna 1(Quad), pre-amp +30, agc med and mid scale. Headphone slider full left. I opened panadapter two; rec antenna 2(M2), pre-amp +30, agc med mid scale. Headphone slider full right. I did the A/B test by muting either the slice in panadaper one or two. I could tell no difference when listening to either one or two. I could hear the control station talking but intelligibility was only about 25% , however, when I had both un-muted intelligibility was near 50%. It was a very notable difference between listening to both vs either by them self. I did this back and forth over about a 15 min time period to minimize the effects of changing band conditions. My noise runs about S-3. My conclusion to this very un-scientific test is that somehow when listening to both, the noise was being cancelled. Anyone have any better explanation? If this is how diversity is going to work, I can't wait. 73 Roger
1
Answers
-
I would be curious to see what the effect would be if you had both sliders at center...and carefully adjusted for a perfect balance. Would the noise actually cancel? or add? Just a thought...0
-
Your configuration is a basic form of "stereo" diversity reception. We have plans to provide even more advanced types of diversity reception in the future using some DSP techniques to present signals of interest to the operator with the best signal to noise ratio. This is just the tip of the iceberg.0
-
Dang, making me want to trade up to a 6700, now...0
-
I have been receiving the VOA Radiogram for the last few weeks in this manner using both my G5RV and my 40 meter loop. It seems to work very well. It would be nice to receive it with one antenna on one fldigi and with two antennas on another fldigi. Maybe DAX with supply this capability.0
Leave a Comment
Categories
- All Categories
- 289 Community Topics
- 2.1K New Ideas
- 530 The Flea Market
- 7.5K Software
- 6K SmartSDR for Windows
- 146 SmartSDR for Maestro and M models
- 358 SmartSDR for Mac
- 249 SmartSDR for iOS
- 229 SmartSDR CAT
- 171 DAX
- 352 SmartSDR API
- 8.7K Radios and Accessories
- 7K FLEX-6000 Signature Series
- 20 FLEX-8000 Signature Series
- 841 Maestro
- 43 FlexControl
- 847 FLEX Series (Legacy) Radios
- 793 Genius Products
- 415 Power Genius XL Amplifier
- 277 Tuner Genius XL
- 101 Antenna Genius
- 243 Shack Infrastructure
- 166 Networking
- 404 Remote Operation (SmartLink)
- 130 Contesting
- 630 Peripherals & Station Integration
- 125 Amateur Radio Interests
- 869 Third-Party Software