Forum: Antennas
11-Aug-2022, 8:54 PM
|
Replies: 6
Views: 33,842
|
Forum: Help With Reception
9-Mar-2021, 6:06 PM
|
Replies: 32
Views: 51,815
|
Forum: Help With Reception
22-Jan-2021, 5:13 PM
|
Replies: 32
Views: 51,815
|
Forum: Help With Reception
28-Nov-2020, 1:48 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
27-Nov-2020, 11:55 PM
|
Replies: 90
Views: 399,888
OK, understood.
OK, not understood :)...
OK, understood.
OK, not understood :)
Can the Airspy not scan & display a narrow 8-10 MHz region like the RSP1?
When the RSP1 scans from say 45 MHz to 80 MHz,
does the spectrum look...
|
Forum: Help With Reception
27-Nov-2020, 9:56 PM
|
Replies: 90
Views: 399,888
Thanks for the images.
Looks like displays...
Thanks for the images.
Looks like displays from three different STL-SDR units,
that is if the RTLSDR Scanner is running on one of the lower cost devices?
When comparing the SDRplay and the...
|
Forum: Help With Reception
27-Nov-2020, 5:50 PM
|
Replies: 90
Views: 399,888
OK, yes.
Not that it would be a serious...
OK, yes.
Not that it would be a serious problem for most antenna testing;
Being a double sideband modulator, doesn't the NTSC video carrier show up twice in the spectrum?
Doesn't the...
|
Forum: Help With Reception
27-Nov-2020, 1:14 PM
|
Replies: 90
Views: 399,888
Very good to have cooperation from spouse.
...
Very good to have cooperation from spouse.
Thanks for the .pdf, interesting read.
Wonder how you use the BT double sideband Modulator?
Do you inject a tone to provide a pair of CW signals,...
|
Forum: Help With Reception
26-Nov-2020, 1:52 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
25-Nov-2020, 5:44 PM
|
Replies: 90
Views: 399,888
That would be good if was practical. For...
That would be good if was practical. For accuracy, the two antennas would need to be located at the same physical place. In many cases at UHF, a separation of a foot or so, and the two antenna...
|
Forum: Help With Reception
25-Nov-2020, 3:43 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
25-Nov-2020, 1:20 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
24-Nov-2020, 8:18 PM
|
Replies: 90
Views: 399,888
Interesting, thanks for the info and images.
...
Interesting, thanks for the info and images.
Seems the Airspy has such a good reputation, that there would be logging/export software available for it.
As we discussed earlier in this thread,...
|
Forum: Help With Reception
24-Nov-2020, 6:25 PM
|
Replies: 90
Views: 399,888
Haven't tried it for a couple of reasons:
1....
Haven't tried it for a couple of reasons:
1. Do not yet possess Airspy R2.
2. Haven't seen on Internet where anyone has successfully used the combo.
The reason for Item #2 could be because the...
|
Forum: Help With Reception
24-Nov-2020, 3:52 PM
|
Replies: 90
Views: 399,888
Nice list of software, thanks.
RTLSDR...
Nice list of software, thanks.
RTLSDR Scanner is shown in the list. Used it several years ago with the least costly version of RTL-SDR dongle. RTLSDR Scanner with its export feature, worked fine...
|
Forum: Help With Reception
24-Nov-2020, 1:57 PM
|
Replies: 90
Views: 399,888
Export Data Airspy R2?
Hi rabbit73, or anyone familiar with Airspy.
Do you know if there is software for the Airspy R2 that exports logs of spectrum scans in .csv format (or something similar)?
Interested in software...
|
Forum: Help With Reception
14-Sep-2020, 3:14 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
13-Sep-2020, 3:33 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
12-Sep-2020, 4:42 PM
|
Replies: 90
Views: 399,888
|
Forum: Help With Reception
11-Sep-2020, 3:19 PM
|
Replies: 90
Views: 399,888
|
Forum: Antennas
27-Jul-2020, 12:06 AM
|
Replies: 1
Views: 21,251
JFD Antenna
Those may be spacers. The front elements are in a Vee array for UHF. The lengths of the UHF elements are 5/4 wavelength or possibly longer. The elements are relatively long for UHF and the spacing...
|
Forum: Antennas
15-Jun-2020, 5:46 PM
|
Replies: 33
Views: 241,136
|
Forum: Antennas
15-Jun-2020, 3:34 PM
|
Replies: 33
Views: 241,136
Yes
The 1st UHF transistor (BFG67)...
Yes
The 1st UHF transistor (BFG67) could be replaced with a BFG520.
It might lower noise figure a couple of tenths of a dB.
Prrobably need to retune.
|
Forum: Antennas
14-Jun-2020, 7:21 PM
|
Replies: 33
Views: 241,136
Yes, plus.
Channel Master and some other...
Yes, plus.
Channel Master and some other manufacturers have not provided accurate noise figure numbers.
Numbers often provided are quotes from transistor manufacturers specs.
There is more...
|
Forum: Antennas
12-Jun-2020, 10:18 PM
|
Replies: 33
Views: 241,136
|