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V 6 - ufb RIG - enhancements
#bitx20
Today - after abt 1 year abstinent - I grabbed the uBITX V 6 - assembled 2020 January For my CW (QRP) operating - It has modified with - Nextion Desplay - AGC from Kit Projects - Audio Filter from Sotabeams (Laserbeam VARI) - Audio Amp replaced and optimized (also LM-386) The QRG is abt 50 Hz accurancy Suddently the vertical (8.5m only) was tuned by CG-300 and I started to call. Makes 6-10 Watts 20 / 60 / 30 m todays CW QSO from HB9 to DL / G4 / F8 / IZ3 / OK2 / S57? Its really a fine Radio - I am really satisfied, Have now the idea to enhance the Audio part with a small amplifier. (for my QRP ears it's still too noisy) The choosen Module is the PAM8403 - STL-1109) first expirience done - seems much less noisy. After success? will this also do with my uBITX V5 HB9FIH HS0ZLS |
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Re: Battery Pack
#ubitx-v6
I routinely use this Lithium pack with my uBitX V5 to run portable. It is handy in that it has a 5v USB socket for the little RPi Zero 2W that handles digital modes. I have run all day on a charge and literally for days with the charger plugged in to the battery and operating the rig remotely. I don't know if it small enough to be mounted inside the OEM V6 case, but it is pretty small.
=Vic= |
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Re: Battery Pack
#ubitx-v6
Where can I learn more about N8MM/VU3AGO software?
That sounds new to me -- '72 Aaron K5ATG |
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Re: Battery Pack
#ubitx-v6
Another option is Lion Batteries. They are small and are not as limited as other types. My son in CA (N5DIM) goes mountain-topping and has a go-pack and he uses Lion. He said there are sources for them on the Internet and what he uses costs about $65 ¡ª or did when he bought it. It's worth checking out for their compactness. Also, Walmart has Batteries for emergency auto starting that may be interesting and they come in two versions: for 4cyl and 6cyl engines. Have to make sure they are no more than 14/15V on the output, though. Personally, I'm not going for more than 14V because I could have nightmares if my V6 radios started to smoke. Bob KK5R
On Saturday, November 19, 2022 at 08:30:37 PM EST, Gerald Sherman <ve4gks@...> wrote:
Aaron - I am planning to run mine as a portable.? I will be using
an external battery.? I have a couple of LiFePO4 4-cell 9 amp-hour
batteries.? One of them should be good for several hours along
with a Hamcrafters K44 keyer.? I am planning to upgrade to the
N8MM/VU3AGO software.? This will have to wait for better weather -
I can't put up an antenna at my apartment & I have no
intention of outdoor operation during a Winnipeg winter. Gerry Sherman Sent by the Linux Thunderbird On 2022-11-19 20:51, Aaron K5ATG via
groups.io wrote:
Since I'm still stuck in bed I have been working on a uBITX v6
basic kit. Since I'm in bed I am unable to run a power cord from
my power supply to the uBITX. So I have been using a little
battery pack made up of 8 rechargeable AA batteries. It has 12
volts for a bit but that is about it.? I'm guessing here that the three-wire connector P1 is for an optional battery pack.? I'm planning to have some surgeries after the first of the year on my back. I'm planning on being able to be active then and I want to get back into riding my recumbent trike and operating the radio from city parks.? I'm interested in having an onboard battery pack for my uBITX. Has anyone added a battery pack and if so could you please tell me how you did it and what batteries and associated parts did you use?? Thank you -- '72 Aaron K5ATG
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Re: Battery Pack
#ubitx-v6
Yeah Gerald it looks like an external will be the best option. Don't put it off too long or you will be stuck in the hot humid tropical weather that Canada is known for lol.?
As for the AA battery pack that I am using. I'm not transmitting with it. I am experimenting with possibly relocating the Raduino and an internal ATU, so I am using the AA battery pack to check that I have it set up right. This battery pack is normally used to power a Cricket and Hilltopper, it works well for them. -- '72 Aaron K5ATG |
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Re: What's New? NANO every
Other than level shifting from 3 to 5v, what does the I2C mux do that simply connecting the devices to a shared bus does not? On Sat, Nov 19, 2022, 19:25 <g8ptn@...> wrote: Hi Mark and Jim, |
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Re: What's New? NANO every
Hi Mark and Jim,
I only have a basic block diagram (see attached) and a few notes below. If you have any further questions I will try and cover them. Each function is built on bread board and/or copper clad. The functions currently built are as follows:
- 12V reverse polarity protection and inrush current limit.
- VI monitoring and 5V PSU.
- D1 Mini (ESP8266) and I2C Multiplexer.
- IO Expanders and Fan control. Provision is provided for up to 16 IO pins (currently 6 are being used).?
- RX Audio
- TX Audio
?
The majority of the peripherals are connected via I2C. The interfaces are point to point to try and minimise RF noise.
Two rotary encoders are provisioned, one for volume control and the other for general use such as setting of parameters.
The rotary encoders use "I2C Encoder Mini" modules which provide an I2C interface. This minimises the IO and processing overhead on the D1 Mini MCU. The INT signal from the rotary encoders is polled by the D1 Mini MCU, and if active the status of the rotary encoders is then read via I2C. The digital potentiometers are connected via a SPI bus. This allows control of the following parameters:
- Noise gate and compression ratio on the RX SSM2167 module - Volume level driving the LM386 audio amplifier - Noise gate and compression ratio on the TX SSM2167 module - Mic level driving the uBITX MIC input The forward and reflected voltages from the RF Stockton bridge are connected to an ADS1115 ADC. The Pfwd, Pref and VSWR values are calculated by the D1 Mini MCU.
The RMS level detector from the receive SSM2167 (AVG CAP) is buffered and amplified before being passed to the uBITX Raduino analogue S-Meter input.
The firmware for the ESP8266 uses the Arduino IDE and appropriate libraries for the devices and MQTT client support. ?
73, Dave |
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Re: Battery Pack
#ubitx-v6
A good option for a battery pack is at Rural King, if you have one there. They sell a 6V gel ccll battery for deer feeders and two of them cost me $20 and when the two are connected in series (watch polarity) two of them will run the uBITX a long time. Rural King also has a 6/12V AC battery charger for about $12 for the batteries. Harbor Freight has a 12V solar panel now for about $15 but it is only rated to maintain batteries so it will not run the radio alone. The solar cell package has several interconnect cables so for battery charge level maintenance, it may still be interesting to some here whether used with the deer feeder batteries or other batteries. It was suggested to be used on cars, also.? Bob KK5R
On Saturday, November 19, 2022 at 03:51:34 PM EST, Aaron K5ATG via groups.io <k5atg@...> wrote:
Since I'm still stuck in bed I have been working on a uBITX v6 basic kit. Since I'm in bed I am unable to run a power cord from my power supply to the uBITX. So I have been using a little battery pack made up of 8 rechargeable AA batteries. It has 12 volts for a bit but that is about it.? I'm guessing here that the three-wire connector P1 is for an optional battery pack.? I'm planning to have some surgeries after the first of the year on my back. I'm planning on being able to be active then and I want to get back into riding my recumbent trike and operating the radio from city parks.? I'm interested in having an onboard battery pack for my uBITX. Has anyone added a battery pack and if so could you please tell me how you did it and what batteries and associated parts did you use?? Thank you -- '72 Aaron K5ATG
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HB9FIH
Vic WA4THR
Aaron K5ATG
Bob Lunsford
Mark Phillips
