Date   
Re: BlinkySWR progress

Vojtech Bubnik
 
Edited

50 pieces of partially assembled boards arrived. The builder has to solder the AtTiny and 6 SMD LEDs.

 

Now I have to source the very high intensity LEDs and I can start sending out the boards. Only the shipping will be difficult in the COVID-19 times and while recovering my broken leg.



Vojtech OK1AK

 

Re: interesting receiver chip

 

I have been playing around all day with the Tindie DSP V5 radio and was able to change some of the provided code to allow it adjust the BFO in SSB mode, Which allows me to tune between the 1KHz steps, works quite well.


Joel 
N6ALT

On Mar 31, 2020, at 2:46 PM, Jim Reagan <jimreagans@...> wrote:

I built one up, first on a breadboard and then made up a board.  It works well (1 microvolt sens). The smallest step with the software I have is 1khz.
Your mileage may vary,
Jim W0CHL
<IMG_9584.jpg>
<Si4735.pdf>

Re: interesting receiver chip

 

I built one up, first on a breadboard and then made up a board.  It works well (1 microvolt sens). The smallest step with the software I have is 1khz.
Your mileage may vary,
Jim W0CHL

Re: Unbuilt Kd1jv Kits

Marty NR3Z
 

How much are you asking for it?
72,
Marty NR3Z

On Sun, Mar 29, 2020, 00:46 Kieran D via Groups.Io <kieran2230=yahoo.com@groups.io> wrote:
I have an unbuilt mtr3b.  I'd like to have it assembled.  Starting to think I just need to sell it and buy a premade one.

Re: Unbuilt Kd1jv Kits

Kieran D
 

I'm located in Oklahoma City, OK  KC6DSE

Re: Unbuilt Kd1jv Kits

Colin Tuckley
 

On 29/03/2020 05:46, Kieran wrote:

I have an unbuilt mtr3b.  I'd like to have it assembled.
If you said where you were you might get better help.

Colin

--
Colin Tuckley | +44(0)1223 830814 | PGP/GnuPG Key Id
G8TMV | +44(0)7799 143369 | 0xFA0C410738C9D903

Re: Unbuilt Kd1jv Kits

Kieran D
 
Edited

I have an unbuilt MTR V2 from 2014.  I'd like to have it assembled.  Starting to think I just need to sell it and buy a premade one.

Re: Where can I get a MTR2B manual?

Stephen Wandling
 

Have not watched one of your videos for years. Loved the pesky goats. Worked you once, with my ATS3B. Not everyone has a mountain in their backyard. Front yard?

72, 
Stephen
VE7NSD

On Sat., Mar. 28, 2020, 3:25 p.m. steve_wg0at, <goathiker@...> wrote:
Well when you live with goats it's bound to happen ...especially when you're not looking they get into all your stuff! 

Re: Where can I get a MTR2B manual?

Michael Rosenberg
 

Thank you everyone!

Re: Where can I get a MTR2B manual?

steve_wg0at
 

Well when you live with goats it's bound to happen ...especially when you're not looking they get into all your stuff! 

Re: Where can I get a MTR2B manual?

Stephen Wandling
 

That PDF looks like a goat has been chewing on it. Hmmm?

Stephen
VE7NSD

On Sat., Mar. 28, 2020, 1:35 p.m. steve_wg0at, <goathiker@...> wrote:
This might help? 

73, Steve/wG0AT

Re: Where can I get a MTR2B manual?

steve_wg0at
 

This might help? 

73, Steve/wG0AT

Where can I get a MTR2B manual?

Michael Rosenberg
 

I have a new to me MTR2B and I can find an manual via Google.  Does anyone in the group know where I may source one?

Best 73
Mike
N9YB

New file uploaded to kd1jvdesigns@groups.io

kd1jvdesigns@groups.io Notification <kd1jvdesigns+notification@...>
 

Hello,

This email message is a notification to let you know that the following files have been uploaded to the Files area of the kd1jvdesigns@groups.io group.

Uploaded By: Steven Weber <steve.kd1jv@...>

Description:
Fixes calibration problem of having the band pointer stored in the middle of the calibration data! This error caused the frequency to always be off by a few 100 Hz.

Cheers,
The Groups.io Team

SB II 20m patch

Don, ND6T
 

Steve, Sascha, Joel, and others that are interested in 20m operation with the Slop Bucket II;
K6STN graciously loaned me his 20m SB2 so that I could try out the firmware fix. Attached is
my contribution in the form of SLOPBUCKET_II_REV 1.03a.ino

 

The Problem

 

When we move operation above the IF frequency (a bit above 9 MHz) the original algorithm of
subtracting the operating frequency from the BFO frequency to produce Lower Side Band produces
an error. The bands below the IF frequency work nicely, just 20m won’t work for Lower Side Band
nor CW (which is also on the lower side of the operating frequency in this rig). Since most of the
builds are for other bands we need to maintain that operation.

 

The patch

 

By adding a few lines of code to the PLLwrite() function that organizes the data to be sent to the
clock chip I was able to insert a couple of conditional instructions that enabled the two missing modes
on 20m. This was done by subtracting the BFO frequency from the operating frequency and changing
the direction of the offset for CW operation.

 

Small menu change

 

Steve’s addition to the menu adding the ability to erase the EEPROM was most welcome! However,
for me at least, the labels were confusing. So I changed my label from “Rsw” to “Funct” (for Function)
and changed my label from “Esw” to “Enter” since those were the labels on my button and knob.
Yes, I am easily confused (and getting worse by the day!).

 

Many thanks for making the kit and for making it up-gradable, Steve. For months this has become
my go-to radio for SSB. Many complements on the signal, both SSB and CW. Better than my big Icom.
And so easy on the batteries, too.

 

Re: interesting receiver chip

Vojtech Bubnik
 

Quite expensive, though my fingers are itching to order.

Re: BlinkySWR progress

Vojtech Bubnik
 

I was busy recently, broke my leg in the meantime, so the development drags.

Anyways, this is the final design of the simple kit.
https://hra.remoteqth.com/iak/02-S-4r/BlinkySWR-0.2-S.pdf
https://hra.remoteqth.com/iak/02-S-4r/ibom.html
https://hra.remoteqth.com/iak/02-S-4r/BlinkySWR-0.2-Sa.png
https://hra.remoteqth.com/iak/02-S-4r/BlinkySWR-0.2-Sb.png

We are ordering 50 pieces of mostly populated boards. The kit builder will have to solder the ATTiny micro and the 6 LEDs (D1-D6), as the Chinese company does not source the red high intensity LEDs needed by this self powered device. I am not sure whether we can keep the price at $10 for the kit version, the price may be couple of bucks higher. I will likely offer a fully populated board for an extra $5 for those not willing to solder the atmel and those 6 LEDs, I just hope that only a handful of HAMs will opt for the full build and I will not have to spend my weekends soldering.

Let's keep the fingers crossed.

73, Vojtech OK1IAK

Re: interesting receiver chip

 

I just ordered one of these yesterday, should be fun to experiment with. https://www.tindie.com/products/microwavemont/dsp-radio-version-5-ssb-receiver/

Joel
N6ALT

Re: interesting receiver chip

 

Yep, I have one in my hands since I had to order other things from DigiKey... I'll be playing with it later this week.
Your mileage may vary,
Jim

Re: interesting receiver chip

Vojtech Bubnik
 

One more thing. This chip would likely make a wonderful fox hunt receiver kit.