Re: We started selling SAA2 with N-type RF connector and 4-inch display
On 8/3/20 8:08 PM, Hugen wrote: Hello OneOfEleven, we are evaluating whether our supplier can provide SMA connectors comparable to Amphenol. If possible, we will use better connectors in next-generation products.
On Sun, Aug 2, 2020 at 02:37 AM, OneOfEleven wrote:
As far as I know the SMA connector is better up into the several GHZ range
than the N-Type ?
But yes the N-Type is GHz good.
For what it's worth, SMA connectors are as good as N for the most part, until you get into fancy N or 3.5mm connectors. Are you "gauging" your connectors before measuring? Using a torque wrench? Cleaning the connectors? I suspect the vast majority of users aren't doing any of these things. The uncertainty in mate/demate with SMA is about the same as for N. Way back, someone (at Maury?) put together a rig to mate/demate SMAs thousands of times. I can't find it right now, but there's also this: R. L. Jesch, "Repeatability of SMA coaxial connectors," in IEEE Transactions on Instrumentation and Measurement, vol. IM-25, no. 4, pp. 314-320, Dec. 1976, doi: 10.1109/TIM.1976.6312234. more discussion
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, Aug 3, 2020 at 05:16 PM, Christos SV1EIA wrote:
On Mon, Aug 3, 2020 at 04:13 PM, igor-m wrote:
I've built from latest sources with RTC/SDCARD and 192k ADC but H4 does not
start..
Hi Igor,
Did that too, enabled RTC, SDCARD, enabled 192K and it works ok for me.
Also, in order to have the same IF as with 96K
I've modified the nanovna.h at line 50 with this
//#define FREQUENCY_OFFSET 12000
#define FREQUENCY_OFFSET 24000
and it also works ok again
We can wait though for DiSlord to test his code according to how he feels it
is ok before he uploads it regarding the 192K so we all have the best results
from him.
I upload only 192k support, now need find better settings (not upload part of them, you can select variable table support and try 12,24,28k offset settings). At this moment 24 and 28k IF frequency show perfect results (biger ADC now allow measure more high IF vs better phase measure). As can see phase measure perfect on all frequency range up to 2.7GHz (possibly and higher) But one problem in amplitude measure, begin drop after 1.5GHz, stay ? k up to 2GHz, and drop to 2.7 GHz. I think it come from hardware, need calculate better filter on ADC input (IN1, IN2 IN3 of TLV320AIC). It added to measure 5k IF, for 96k i set it to 12k IF (now for 192k IF 28k) and i think it cut some part of signal. See scheme for H4: For IN2: R32,R33, C22, C23, C28, C29 and input impedandce of 10k I think need calculate this filter for 32k IF PS Tnanks Herb, i try revert some band, posibly this remove locks.
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
Hello David, SAA-2N still uses the original SAA-2 PCB without any changes.
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On Sun, Aug 2, 2020 at 05:39 PM, Dr. David Kirkby, Kirkby Microwave Ltd wrote:
On Sat, 1 Aug 2020 at 18:24, Hugen <hugen@...> wrote:
There is no innovation, just a new shell.
Since this group has been dissatisfied with the SMA connector and the
2.8-inch display, we installed the N-type RF connector and the 4-inch LCD
on the original SAA2 and fixed it with a metal shell. The increase in cost
mainly comes from N-type connectors and radio frequency cables containing
N-type connectors. In order to avoid confusion with the next-generation
products that may appear, we temporarily call it SAA-2N.
The N-type connector is very heavy, and the total shipment is 1kg. The
logistics company may need to charge a logistics fee of 1.5kg, so the
logistics cost is much higher. We are waiting for the MSDS report of the
new battery. After the MSDS test is completed, we will provide DHL shipping
methods.
As some users cannot complete payment in alibaba, we have activated
aliexpress and support paypal payment.
hugen
That¡¯s a MUCH nicer product - it solves the problems that I most disliked
about my early NanoVNA - the SMA connectors and screen size.
You mentioned no innovation. What innovations are planned? Will newer
models have N connectors too?
Dave
-- Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...
Telephone 01621-680100./ +44 1621 680100
Registered in England & Wales, company number 08914892.
Registered office:
Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United
Kingdom
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
Hello Mike, the cost of using DHL to send to the US is about $25.
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On Sun, Aug 2, 2020 at 10:16 AM, n2msqrp wrote:
Hugen,
I appreciate the VNA with N connectors!
What do you expect the DHL shipping cost will be to the US?
Mike N2MS
When do you expect the
On 08/01/2020 1:24 PM Hugen <hugen@...> wrote:
There is no innovation, just a new shell.
Since this group has been dissatisfied with the SMA connector and the 2.8-inch display, we installed the N-type RF connector and the 4-inch LCD on
the original SAA2 and fixed it with a metal shell. The increase in cost mainly
comes from N-type connectors and radio frequency cables containing N-type
connectors. In order to avoid confusion with the next-generation products that
may appear, we temporarily call it SAA-2N.
The N-type connector is very heavy, and the total shipment is 1kg. The logistics company may need to charge a logistics fee of 1.5kg, so the
logistics cost is much higher. We are waiting for the MSDS report of the new
battery. After the MSDS test is completed, we will provide DHL shipping
methods.
As some users cannot complete payment in alibaba, we have activated
aliexpress and support paypal payment.
hugen
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
Hello OneOfEleven, we are evaluating whether our supplier can provide SMA connectors comparable to Amphenol. If possible, we will use better connectors in next-generation products.
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Show quoted text
On Sun, Aug 2, 2020 at 02:37 AM, OneOfEleven wrote:
As far as I know the SMA connector is better up into the several GHZ range
than the N-Type ?
But yes the N-Type is GHz good.
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
Hello Rich, using DHL, you are expected to receive it before the end of August.
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On Sun, Aug 2, 2020 at 05:54 AM, Rich NE1EE wrote:
On 2020-08-01 10:24:-0700, you wrote:
The N-type connector is very heavy, and the total shipment is 1kg. The logistics company may need to charge a logistics fee of 1.5kg, so the
logistics cost is much higher. We are waiting for the MSDS report of the new
battery. After the MSDS test is completed, we will provide DHL shipping
methods.
Notes for others...
the PayPal method is not shown until you get to step 2
only Estimated Delivery on 10/13 Shipping: US $21.98 AliExpress Standard
Shipping is available
so you must wait to order if you want DHL...and even then, it might still be
Oct...?
--
72/73 de Rich NE1EE
On the banks of the Piscataqua
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, Aug 3, 2020 at 01:52 PM, DiSlord wrote:
Little more update v1.0.11
Check both variants v1.0.10 and v1.0.11
PS I didn't think I could get such a result
========================================
DiSlord,
I also didn't think trustworthy measurements past 1200MHz were possible using the si5351 but two port measurements look good to 30dB down for both v1.0.10 and v1.0.11. The s21 noise floor is at least 40dB down to 1.5GHz using v1.0.10 on my H4. The s21 noise floor is at least 50dB down to 1.5GHz using v1.0.11 on my H4.
Both versions measured a 30 dB attenuator accurately to 1.5GHz. Previous version started to lose accuracy above 1.2GHz. Surprising the extra 10dB of headroom with v1.0.11 did not gain me anything when measuring a 40dB attenuator. Both versions were very noisy measuring a 40dB attenuator above 1200 MHz.
Comparison measurements of a 200 - 500MHz BPF and 300MHz LPF give the edge to version 1.0.11 (see attached screenshots).
I experienced lock-ups which required cycling power to the H4 using v1.0.11. The lock-ups occur randomly after the H4 has been operating for a while.
I'll try changing my threshold and see if the lock-ups still happen.
- Herb
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
Dear Dr. David Kirkby, Hello, our products have been commercialized and we attach great importance to compliance.
We have sorted out all licenses that may be involved in NanoVNA and SAA2.
NanoVNA software£ºGPL3£¬
NanoVNA hardware£ºPrivate, need to be approved by ttrftech
SAA2 software£ºGPL3£¬
NanoVNA hardware£ºLGPL v2.1
But I received Gabriel Tenma White¡¯s private mail stated that SAA2 contains non-open source content. We are carefully checking the relevant content. If there is any violation, we will immediately correct it.
±·²¹²Ô´Ç³Õ±·´¡-³§²¹±¹±ð°ù£º³Ò±Ê³¢3£¬
³Õ±·´¡-²Ï°Õ£º³Ò±Ê³¢2£¬
If we have other possible non-compliance, please help us to correct it, thank you!
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On Mon, Aug 3, 2020 at 06:47 AM, Dr. David Kirkby, Kirkby Microwave Ltd wrote:
On Sat, 1 Aug 2020 at 18:24, Hugen <hugen@...> wrote:
There is no innovation, just a new shell.
Since this group has been dissatisfied with the SMA connector and the
2.8-inch display, we installed the N-type RF connector and the 4-inch LCD
on the original SAA2 and fixed it with a metal shell.
Hugen,
What license is the software released under? The original NanoVNA was the
General Public License (GPL), but I see the link you gave says LGPL, which
is a *completely* different license. The L means ¡°lesser¡±, so it seems
that
you have taken something away that you should not have done. Ot maybe it is
just a mistake, and there¡¯s an extra L by mistake.
The LGPL allows one to release binaries without the source code, but once
software is released under the GPL, then all the source code should be
available, so GPL code can not later be converted into LGPL code.
Dave
--
Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...
Telephone 01621-680100./ +44 1621 680100
Registered in England & Wales, company number 08914892.
Registered office:
Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United
Kingdom
|
Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, Aug 3, 2020 at 04:13 PM, igor-m wrote:
I've built from latest sources with RTC/SDCARD and 192k ADC but H4 does not
start..
Hi Igor, Did that too, enabled RTC, SDCARD, enabled 192K and it works ok for me. Also, in order to have the same IF as with 96K I've modified the nanovna.h at line 50 with this //#define FREQUENCY_OFFSET 12000 #define FREQUENCY_OFFSET 24000 and it also works ok again We can wait though for DiSlord to test his code according to how he feels it is ok before he uploads it regarding the 192K so we all have the best results from him.
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
I've built from latest sources with RTC/SDCARD and 192k ADC but H4 does not start..
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I got a brand new Nano vna h v3.4. Right out the box no cables. At all. No connectors. Nothing. No charger. I'm dealing with it right now with the seller and they want me to return it. They did it to me on purpose. But I'm past it. I know it can be fixed. the vna shows white screen and I'm assuming it's fairly easily fixed. Idc if it can't be used without the computer. Whatever. But if anyone knows what causes the screen to be white like that I'd take a stab at fixing it. Not sending it out back to them when they intentionally sent me this bs. All because I needed to change my shipping address. Anyways. Any help is appreciated.
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Do you mean the "bandwidth" settings Igor ? Nope, I talk stop frequency. Setting for example 1500MHz or 2000MHz disconnects the H4 from serial, it also offers to "save the .bmp" when clicking on Scan. Bandwidth is a different issue..
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Re: We started selling SAA2 with N-type RF connector and 4-inch display
On Mon, 3 Aug 2020 at 07:45, Gabriel Tenma White <OwOwOwOwO123@...> wrote: LGPL does not allow releasing binaries without the source code. The only
difference compared to GPL is that you are allowed to dynamically "link"
proprietary libraries to a LGPL program, but since on a microcontroller
there is usually only static linking, LGPL is equivalent to GPL, but yes
they are not interchangeable and GPL code can not be turned into LGPL. If the advert is to be believed, then the GPL code has been changed to LGPL, which is not legal. I would like to know the reason for the extra L. Dave -- Dr. David Kirkby, Kirkby Microwave Ltd, drkirkby@... Telephone 01621-680100./ +44 1621 680100 Registered in England & Wales, company number 08914892. Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United Kingdom
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Check phase measure to 2.7G
Its ..... perfect
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Hi Christos,
Please try using the forum's search feature.?
I created a 'how to search' document that is the first item in the forum's Wiki.
Search on:? bandwidth AND setting
... Larry
On Mon, 3 Aug 2020 at 4:51 PM, Christos SV1EIA via groups.io<sv1eia@...> wrote: One more question, is there any post that describes what the bandwidth setting does?
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One caution regarding using the NANO's for Duplexer tuning (and I've done
many using the HP 8753C): Typical goal is to adjust for at least 100 dB
isolation between receive and transmit frequencies for amateur repeater
operation. This applies to a 6-can BPBF design. The 8753C has enough
dynamic range to accomplish 110 dB of isolation with careful adjustment and
good cabling. However, the NANO's do not. They are capable of 70 dB,
depending on frequency, but not any more. You can typically 'guess' at the
middle of the isolation curve by rocking adjustments back and forth, but no
assurance of the target 100 dB (or better) isolation. If you are happy
with 70 dB of isolation, OK. Otherwise, not.
Dave - W?LEV
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On Mon, Aug 3, 2020 at 8:49 PM Sam Reaves <sam.reaves@...> wrote: Someone had asked about using the NanoVNA for duplexer tuning.
There is an excellent video on that by David Houser KG5RDF here:
Sorry but I could not find the original poster of the question about being
able to do this.
73,
Sam
W3OHM
--
*Dave - W?LEV*
*Just Let Darwin Work*
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, Aug 3, 2020 at 01:50 PM, Christos SV1EIA wrote:
One more question, is there any post that describes what the bandwidth setting
does
In simple words: Then NanoVna measure signal level and phase it made fft (fast fourier transform for IF frequency) and grab all IF power in bandwidth range, bigger bandwidth, less measure, but also grab noise in this range. Less BW, more measure need, but less noise range and better result.
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
One more question, is there any post that describes what the bandwidth setting does?
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Someone had asked about using the NanoVNA for duplexer tuning.
There is an excellent video on that by David Houser KG5RDF here:
Sorry but I could not find the original poster of the question about being able to do this.
73,
Sam
W3OHM
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
On Mon, Aug 3, 2020 at 01:20 PM, Christos SV1EIA wrote:
On Mon, Aug 3, 2020 at 01:12 PM, DiSlord wrote:
better reset config, 'clearconfig 1234'
And made touch calibration if need, after save config (config->save)
Thank you DiSlord, you are the best.
You have really done impressive upgrades!
I'm new to this firmware so got questions :-)
Appart from saving the params to card, is there a feature to take screenshots
saved in card too?
Please read post, all this new features about SD card in it /g/nanovna-users/message/14447For made screenshot need tab on BW text at bottom
For save s1p or s2p file SD Card-> SAVE ...
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Dr. David Kirkby, Kirkby Microwave Ltd
Sam Reaves