开云体育

Hello all,
I purchased a SAA-V2 from Amazon's seller Seesii and BOTH the SMA's are bad or wrong size or something? I can get about 3/4 of a turn before it stops acting like wrong thread count so I decided to re thread it with a proper die. The die went on and off too easy as if the SMA's diameter is a little smaller than it should be. When I try connecting anything it just doesn't "feel" right, it tries to screw on at a slight angle but if I align it perfectly it will only get almost 3/4 turn. Just wondering if anyone else has had this problem? Another thing I found was it claimed 6 to 8 hour run time with the internal battery which I found wasn't even close. I cycled the battery on 2 identical units 4 times and only got about 3.25 hours of run time. The seller quickly changed that to 3hrs on his listing after I wrote him about my findings. He still has another listing for the same SAA-V2 with the original claim of over 6hrs run time

Seems like a bad clone you should probably return it and buy a new one from
r and l electronics the distribute the offical v2, v2n, h, h4 nanovnas in
the us.

On Sun, Sep 13, 2020 at 8:50 PM N8AUM via groups.io <n8aum=
[email protected]> wrote:

Hello all,

I purchased a SAA-V2 from Amazon's seller Seesii and BOTH the SMA's are
bad or wrong size or something? I can get about 3/4 of a turn before it
stops acting like wrong thread count so I decided to re thread it with a
proper die. The die went on and off too easy as if the SMA's diameter is a
little smaller than it should be. When I try connecting anything it just
doesn't "feel" right, it tries to screw on at a slight angle but if I align
it perfectly it will only get almost 3/4 turn. Just wondering if anyone
else has had this problem? Another thing I found was it claimed 6 to 8 hour
run time with the internal battery which I found wasn't even close. I
cycled the battery on 2 identical units 4 times and only got about 3.25
hours of run time. The seller quickly changed that to 3hrs on his listing
after I wrote him about my findings. He still has another listing for the
same SAA-V2 with the original claim of over 6hrs run time







--

73,
Tripp Sanders
K5TRP

On Sun, Sep 13, 2020 at 07:03 PM, K5TRP wrote:

Seems like a bad clone you should probably return it and buy a new one from r and l electronics the distribute the offical v2, v2n, h, h4 nanovnas in the us.
=====================================
Tripp,
One clarification. R&L is a distributer for hugen's version of the V2 products in the US. The official V2 is distributed by the open source developer. The developer is protective of claims of suggesting products other than hers are official, so we monitor and make corrections to maintain impartiality.

- Herb

NOW U GUYS TELL ME LOL !
I admit that I have very little patience when it comes to buying things, Wish I knew last month! I was thinking of just replacing those connectors but theirs always some fire I'm putting out and not enough hours in a day!
Ok, just setup an account with R&L and of course they are out of stock, oh well, now for the long wait lol
TNX for your fast replies,
73 N8AUM Vidas

Got mine from Seesii on amazon. As advertized and no issues.

Regards
Colin

I have never had such sma problems. I
Resume the problem was with both connectors and you used a lead ( or a cal standard) known to be ok?

I wonder if the centre recepticle has moved when the connector was soldered to the board and the dialectric is not ptfe ( which would haVe tolerated the heat). If you look directly over the recepticle, you might be able to see the eccentricity of the centre part.

Alternatively the internal diameter of the outer component is out of spec, but that is difficult to measure without specialist tools. You might be able to see tiny scratches in the gold plating of recepticle or attempted connecting device if you look with a magnifying glass, or one of those ultracheap “ microscopes” from China. I have found them invaluable.

With moderate soldering skills, it would not be impossible to replace the sma connectors. I am sure some people will need to do this in a year or so, as the sma connectors will have worn out with heavy use. That is why some put on male to female sacrificial” savers”, or get the more robust N version.

Steve L. G7PSZ

Yeah I knew that I guess I just forgot that hugen made standard v2’s.

On Sun, Sep 13, 2020 at 10:25 PM hwalker <herbwalker2476@...> wrote:

On Sun, Sep 13, 2020 at 07:03 PM, K5TRP wrote:



Seems like a bad clone you should probably return it and buy a new one
from r and l electronics the distribute the offical v2, v2n, h, h4 nanovnas
in the us.

=====================================

Tripp,

One clarification. R&L is a distributer for hugen's version of the V2
products in the US. The official V2 is distributed by the open source
developer. The developer is protective of claims of suggesting products
other than hers are official, so we monitor and make corrections to
maintain impartiality.



- Herb







--

73,
Tripp Sanders
K5TRP

On Mon, 14 Sep 2020 at 03:03, K5TRP <trippsanders99@...> wrote:

Seems like a bad clone you should probably return it and buy a new one from
r and l electronics the distribute the offical v2, v2n, h, h4 nanovnas in
the us.

I can't imagine most sellers would want to accept a return if someone has
run a die down an SMA connector!

I recently had a male SMA load from Minicircuits which was out of
specification - the dielectric was too far forward, as measured on Maury
Microwave connector guages. So a poor thread is not the only possible
reason a connector may not screw on.

I buy thousands of Minicircuits parts, and this if the first I have had any
problems with.

73,

Tripp Sanders
K5TRP

Dave, G8WRB.

Looking at the SMS's with naked eye they appear ok. Like I stated on original post, the die goes on and off with no resistance at all. I can wiggle the die with all threads inside of die which to me seems like the connectors diameter is a little too small. Center female pin looks fine using small magnifying glass, but that's just my opinion since I do not have the proper tools for making measurements on SMS's.
THANK YOU ALL for your inputs !

Colin, are you getting the 6 to 8 hours of battery run time on yours?

Vidas

Hello Vidas,

Monday, September 14, 2020

Exact same problem with one from a UK seller, rather than mess with it I sent it back. Ebay supplied a link to print the return label from, which I did and I posted it off. The seller then demanded to know what address it had gone to, of course, it had gone, so I couldn't say. You'd think the seller himself would know what address they had furnished Ebay with... I have a very short fuse with Chinese stuff and China at the moment so I will stick with my AIM4170 :) 2E0ILY


Best regards,
Chris mailto:chris@...


Nvgi> Looking at the SMS's with naked eye they appear ok. Like I
Nvgi> stated on original post, the die goes on and off with no
Nvgi> resistance at all. I can wiggle the die with all threads inside
Nvgi> of die which to me seems like the connectors diameter is a
Nvgi> little too small. Center female pin looks fine using small
Nvgi> magnifying glass, but that's just my opinion since I do not have
Nvgi> the proper tools for making measurements on SMS's.
Nvgi> THANK YOU ALL for your inputs !

Nvgi> Colin, are you getting the 6 to 8 hours of battery run time on yours?

Nvgi> Vidas

Nvgi>

Hello Chris,
Yupper, I will be sending it back after Sally blows thru! I also have the 4170D which I love. Also have HP-8712ES and 8711, one can never have too many VNA's lol
TNX for ur reply,

73 N8AUM Vidas