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  1. Lab599
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Date
Re: I managed to break the unbreakable radio...

 

Sorry for the late reply. I took the radio out of my bag and there was a vertical crack in the glass. Radio works fine. I¡¯ve since opened a contact with Lab599 and it is enroute for a replacement.?
Re: I managed to break the unbreakable radio...

 

Bit of a lack of info Hank. What has broken?
M3KXZ

On Fri, 28 Mar 2025, 04:02 Hank K6HEE via , <k6heeggers=[email protected]> wrote:
This just happened to me. No idea how it happened. Do you remember how much it cost to get serviced?
Re: I managed to break the unbreakable radio...

 

I recall that there are plans to 3D print protective covers for this exact reason.? ?Quick ThingVerse search yielded this result.
https://www.thingiverse.com/search?q=tx-500&page=1#google_vignette
--
Grace & peace,
Tim AF6TF
Re: I managed to break the unbreakable radio...

 

This just happened to me. No idea how it happened. Do you remember how much it cost to get serviced?
Re: AF gain volume during TX varies with power

 

It's always been like that, as far as I remember. Not exactly life or death stuff but a minor annoyance nonetheless.?
Re: AF gain volume during TX varies with power

 

Funny, I never noticed that because I run mine at full power all the time ;)
Re: AF gain volume during TX varies with power

 

Yeah, I've noticed it too.?
Re: AF gain volume during TX varies with power

 

Fw rev. is now 1.23.09. I never got a reply from Lab599 after multiple attempts. Are there any other CW ops experiencing this? I cannot understand why anyone would want the AF Gain to be lowered when the power output is lowered.
?
--
73, Norm/KC1BMD
Re: Anyone used a TX-500 with the Hard Rock amplifier?

 

Just refreshing this post: Curious whether anyone has done it using the TX-500 Kenwood protocol (e.g. for auto band switching, assuming the TX-500 command set supports it).
--
73, Norm/KC1BMD
Re: Single Key Polarity inversion not working Rev

 
Edited

Thank you for confirming Pete, yes I intended a straight key.
?
Kind regards?

HB9IIA, Pier
Re: Single Key Polarity inversion not working Rev

 

Pier, the reason asked my previous question is that the CW Key Rev function only applies to paddles (either single or dual level) and reverses the sides for dits and dahs. For a straight key it does nothing.
73 M3KXZ

On Fri, 21 Feb 2025, 20:43 Pier HB9IIA via , <p.pippi=[email protected]> wrote:

[Edited Message Follows]

I¡®m usually using a single key and switched it with one that has a reversed polarity. If I change the setting under menu=>CW Key=>Rev (Enabled/Disabled) nothing changes on the key input. One key would then still work properly and the other one have a infinite tone when plugged into the 3.5mm jack. I¡®m using firmware 1.23.09. anybody else noticed this stange behavior? Looks like the settings in the menu are not working?
?
73 de HB9IIA, Pier
Re: Single Key Polarity inversion not working Rev

 

Pier, can you clarify what you mean by a single key? Do you mean a straight key, or a single lever paddle?
73 M3KXZ


On Fri, 21 Feb 2025, 20:43 Pier HB9IIA via , <p.pippi=[email protected]> wrote:

[Edited Message Follows]

I¡®m usually using a single key and switched it with one that has a reversed polarity. If I change the setting under menu=>CW Key=>Rev (Enabled/Disabled) nothing changes on the key input. One key would then still work properly and the other one have a infinite tone when plugged into the 3.5mm jack. I¡®m using firmware 1.23.09. anybody else noticed this stange behavior? Looks like the settings in the menu are not working?
?
73 de HB9IIA, Pier
Single Key Polarity inversion not working Rev

 
Edited

I¡®m usually using a single key and switched it with one that has a reversed polarity. If I change the setting under menu=>CW Key=>Rev (Enabled/Disabled) nothing changes on the key input. One key would then still work properly and the other one have a infinite tone when plugged into the 3.5mm jack. I¡®m using firmware 1.23.09. anybody else noticed this strange behavior? Looks like the settings in the menu are not working?
?
73 de HB9IIA, Pier
Re: BP500 Availability

 

That stinks. Hopefully we can get some soon.
?
?
?
Lab599 has always been quiet. I remember when i bought into the first release batch. Everyone was just hoping it wasnt a scam haha and they didnt communicate at all. Then they were delivered. Hopefully we hear from them soon.
Re: BP500 Availability

 

Never, it is supposedly replaced by the BP-550. I was never able to get the BP-500 and I don't expect to be able to get the BP-550, at least in the US from HRO. Questions to Lab599 go unanswered.
--
73, Norm/KC1BMD
BP500 Availability

 

Anyone know when these may become available in the US again?
Re: TX-500 Supply Voltage Readout Accuracy

 
Edited

There could also be a very small drop across the power cable which could be significant when measuring a few 10ths of a Volt. I don't think the developers were trying to provide a lab grade voltage measurement or anything close. Nevertheless, a firmware update improving it would be helpful.
--
73, Norm/KC1BMD
Re: TX-500 Supply Voltage Readout Accuracy

 

Hi Stephan,
?
Thanks so much for answering my post. Perhaps if more users reach out to Lab599, we might get this feature in a future firmware release.
?
73,
Steve
NQ1F
Re: TX-500 Supply Voltage Readout Accuracy

 

Hi Steve,
?
Thanks for your detailed measurements!
?
About three years ago, I measured also about 0.3V difference to the "reality" (I used an uncalibrated and pretty old Fluke 87). In my case the shown voltage was also lower than the "reality" as well.
Maybe it's the voltage drop across a Schottky diode used for reverse polarity protection?
?
I think a nice feature that might be considered in a future firmware upgrade would be to add a user-set battery voltage offset correction for a more accurate readout.?
That's exactly what I suggested to Alex at the time.
?
73 Stephan
TX-500 Supply Voltage Readout Accuracy

 

I discovered that the supply voltage readout on my TX-500 is not quite as accurate as I would like. I use a Bioenno BLF-1203AB battery and monitor the TX-500 supply voltage indication when it drops to around 12.7 Vdc to determine when to recharge the battery. However, I've noticed that the TX-500 supply voltage reads about 0.3 Vdc lower than the true value. So I decided to measure the accuracy and linearity of the voltage readout. I powered the TX-500 in receive mode with a bench DC supply and measured the DC voltage with a calibrated Fluke 87V DMM at each display readout of the TX-500, from 13.8 to 9.00 Vdc in 0.1 volt increments. Of note, the display showed "LOW POWER SOURCE" in reverse video when the DC supply was set to 9.0 Vdc. (BTW, the receive current draw over this range was 100 mA to 135 mA .) The attached Excel workbook contains the measurements and a chart (see below) that plots the Fluke measurements vs TX-500 supply voltage displayed. Also shown is a regression fit of the data, which is as follows:
Vtrue = 0.9964 * Vreadout+0.2709 (Vdc) with an R-squared value of 0.9998
So for my TX-500, the readout consistently reads 0.27 Vdc low.?
?
I think a nice feature that might be considered in a future firmware upgrade would be to add a user-set battery voltage offset correction for a more accurate readout. I'd be interested in hearing from other TX-500 owners on how your unit reads true.

73,
Steve
NQ1F

TX-500-VoltageAccuracy.xlsx
TX-500-VoltageAccuracy.xlsx

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