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Re: [RFI] TinySA as an RFI research tool

To: "reflector RFI" <rfi@contesting.com>
Subject: Re: [RFI] TinySA as an RFI research tool
From: "Dave Hachadorian" <k6ll.dave@gmail.com>
Date: Wed, 16 Jun 2021 21:24:53 -0700
List-post: <mailto:rfi@contesting.com>
Another thing about the Tiny SA is that the screen is very difficult to see in bright light.

When you get out in the field tracking down a noise, you will encounter many noise sources. You don't want to be watching squiggly lines on a dim screen, trying to figure out if that's the same signature you saw at home. If you track a noise by ear, with directional antennas such as an HF loop or flag with a SW receiver, or a yagi/AM VHF receiver, you are pretty much assured by the sound of it that you are onto the specific noise of interest.

Dave Hachadorian, K6LL
Yuma, AZ

-----Original Message----- From: Hugo Loranger
Sent: Wednesday, June 16, 2021 8:52 PM
To: Lee STRAHAN ; RFI@contesting.com
Subject: Re: [RFI] TinySA as an RFI research tool

I don't know if with DX Engineering Portable Receive Preamplifier-Attenuator DXE-NL-PRE-ATT-1 if that would make the product perfect by adding a directional HF and VHF antenna?



Hugo Loranger

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-------- Message d'origine --------
De : Lee STRAHAN <k7tjr@msn.com>
Date : 2021-06-16 23 h 33 (GMT-05:00)
À : Lee STRAHAN <k7tjr@msn.com>, Hugo Loranger <ve2_ugo@hotmail.com>, RFI@contesting.com
Objet : RE: TinySA as an RFI research tool

Hi All again,
While I am thinking of it I also tried the little radio called a Malachite. It suffers the same problems but is a bit more sensitive than the TinySA. One of these with some sort of antenna and preamp looks to me like it would be pretty good. Neither of the two TinySA or Malachite worked as well as the Tecsun PL660 without externals.
 Just my 2 cents worth.
Lee  K7TJR  OR

-----Original Message-----
From: RFI <rfi-bounces+k7tjr=msn.com@contesting.com> On Behalf Of Lee STRAHAN
Sent: Wednesday, June 16, 2021 8:26 PM
To: Hugo Loranger <ve2_ugo@hotmail.com>; RFI@contesting.com
Subject: Re: [RFI] TinySA as an RFI research tool

Hugo and all,
I have looked at and tried the TinySA as an interference testing tool. The sensitivity of the Tiny Sa only goes down to -100 dBm. I was thinking at some point I would add a 20 dB preamp and try it again. As it is by itself with the short vertical it is not sensitive enough to pick up much RFI. I specifically am referring to 40, 80, and 160 meters. I did not try it on VHF with a small beam. In addition, the small vertical antenna supplied with the TinySA swings freely on its connector and will not stay vertical or horizontal.
Lee   K7TJR   OR

-----Original Message-----
From: RFI <rfi-bounces+k7tjr=msn.com@contesting.com> On Behalf Of Hugo Loranger
Sent: Wednesday, June 16, 2021 7:57 PM
To: RFI@contesting.com
Subject: [RFI] TinySA as an RFI research tool

Hi,
What do you think of TinySA as the main tool for RFI research in order to intervene effectively instead of a simple portable HF radio?

73!

Hugo
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