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The Veteran SDR Transceiver 160M to 6M 10 Watts
$30.00
Connects PTT Signal from Multiple radios to 4 Amplifiers without swapping cables with ground isolation.
Out of Stock
$0.00
Easily adjust your transmit image with this device
Out of Stock
$0.00
Magnis SDR 160M -10M 10 Watts
$39.50
RD16HHF1 RF MOSFET
$4.50
The Veteran SDR PCB Set
The Veteran SDR Transceiver PCB Set, 160M to 10M  10 Watts, 6M 1-2W. The transceiver PCB is 4 layer with ground plane and power plane for low current devices.  Most of the parts are 0805 SMD and the IC's are SOIC type.  So the soldering isn't too difficult with some SMD experience.  I will also include a Programmed PIC16F84A and ATtiny85 for controlling the radio.  This radio will work with any SDR software that a Softrock will work with.  PowerSDR and HDSDR are a couple of examples. A stereo sound card and a USB connection to a computer is required.
There is a jack to plug your head phones into providing the SDR program provides RX audio through the TX jack like PowerSDR does.  A key jack on front panel with an Amplifier PTT jack on back which pulls to ground on transmit.
RF pre-amp with 12db gain can be switched in if needed.  AF gain can be adjusted to your needs by changing a resistor value.
Another feature is a temp controlled Cooling fan controller.  A small PCB to mount an NTC on heat sink is included.
Once this radio is warmed up drift on WSPR is normally 0-1.  This is aided by a PTC attached to the Oscillator to allow faster warm up time and temperature stability.
The Oscillator is an Si570. Oscillator build options include CMOS, LVDS, or LVPECL type.  The recommended is an LVPECL 570AAC000118DG available at Digikey.
All of this fits into a readily available enclosure for a clean and professional appearance.
With this design a lot of engineering and testing went in to minimize the close in spurs associated with Tayloe Detector SDR's.  Close in spurs are better than -50dbc on all bands at 10W output.  Harmonics are also better than -50dbc.  IMD performance is around -30dbc.
I have a groups io reflector under TheVerteranSDR for assistance in building and operating.   A website with more info has been added.  please search theveteransdr to find it.
Complete Digikey BOM  and schematic area available from the above sites.
Included:
Transceiver PCB
Front and back end plates
Temp sensor PCB
Programmed PIC16F84A
Programmed ATtiny85
You need to Buy:
All parts per BOM
Enclosure  203x144x68mm
Heat sink
50mm Fan
2 SPST switches
International shipping available at additional cost to buyer.  Shipping, depending on day of purchase, will be within 3 business days.

PCB Update:  I recently found out that Mitsubishi made some changes to the RD15HVF1 which requires a higher BIAS Voltage which this design could not meet without PCB modification.  This PCB has the modifications to allow using old type and new RD15HVF1.  You can also now use the RD16HHF1.  The RD16 performance isn't as good but still meets FCC emissions limits.
 
For the 6M BPF Inductors I added SMD pads as a build option.
 
PCB is now Rev 2.5

For Technical support please join this group for assistance.  https://groups.io/g/TheVeteranSDR




The Veteran SDR Transceiver 160M to 6M 10 Watts
$30.00
Amplifier PTT Interface Board
Every run into the issue with having several radios sharing an amplifier? The antenna coax can be swapped with a switch but what about the PTT signal. I came up with this design to solve that problem. You can interface up to 8 radios to 4 amplifiers. Simply turn the Amplifier on and now the PTT signal is active for that amplifier. The connection with the amplifier uses opto-issolators to minimize ground loops. This can also be used to key an amp from multiple sources. For example the radio it's self can key amp, a foot peddle or desk mounted MIC switch all at the same time. Each input is isolated from the other so having these hooked up at the same time is not a problem. You can use the 4 outputs to key multiple devices at the same time. Maybe you have a T/R switch between antennas and want to key an amplifier or even a series of amplifiers. The Picture is of a prototype. The plan is to have PCB fit a readily available enclosure with PCB end panels like my other Projects. These should be available by the end of April 2021. I will be offering this as a kit where the buyer needs to purchase an enclosure. I will also have 3D printed enclosures available.
Connects PTT Signal from Multiple radios to 4 Amplifiers without swapping cables with ground isolation.
Out of Stock
$0.00
IQBD Detector
Most SDR Transceivers require TX image adjustment by balancing the transmit I/Q balance. The IQBD detects this image and display the magnitude by the brightness of the LED. As you adjust the SDR software the LED brightness will decrease or extinguish when TX image is at it's minimum. There is also an audio output jack that you can feed into your computer sound card. Then feed this audio to an application like HDSDR and you will be able to see the image for adjustment. The IQBD can be powered by a 5-12V source or use the on board coin cells. This will be a kit of parts with PCB. Options include a 3D printed enclosure.
Easily adjust your transmit image with this device
Out of Stock
$0.00
The Magnis SDR PCB Set
The Magnis is an updated version of the Omnia Basic/Peaberry. Unlike the original versions this radio uses plug in BPF/LPF modules so band plan changing is very easy. The PA section is also updated to a pair of RD15HVF1(RD16HHF1 can also be used) for a clean 10W output. The frequency coverage is 160M – 10M.
Below are some of the features:
•96kHz digital I/Q interface. No additional sound card needed. Only one USB connection is needed.
•Two tone, 2 kHz spacing, third-order dynamic range: 99 dB.
•Support for Elecraft T1 automatic antenna tuner.
•External Amplifier control via AMP port.
•CW Key Jack.
•DG8SAQ/PE0FKO/SoftRock control interface.
•Open Source firmware.
•Firmware Field Updates via on board USB bootloader.

With these additional features:

• All bands. The Magnis SDR covers all bands from 160M to 10M.
• Enhanced receive. A RF amplifier is now in the RF front end that provides about 19db of gain at 10M and tapers down to about 0db at 160M
• Receive Band Pass Filters for all band groupings (160M,80M,40M-60M,20M-30M,15M-17M,12M-10M)
• The same BPFs are used in conjunction with Low Pass Filters in the transmit path to provide a clean output.
• 10W Class AB PA. Clean output of 10W on all bands.
• Real CW. Supports zero latency CW. Software generated CW is not required.


The Magnis SDR is also compatible with all host SDR applications that work with the Basic (HDSDR, Genesis SDR, Quisk and others).


Specifications:
Receive:
Continuous from 1.8MHz to 30MHz. (Lower sensitivity below 1.8MHz and between amateur bands)
Sensitivity: MDS: Average -123db. (-125db on 10M. -121db on 160M) ( MDS performance specifications for amateur bands only.)

Transmit:
Power Output: 10W, (transmit permitted on amateur bands only).
Spurious Emissions: Meets or exceeds FCC requirements (-43db from carrier).

Technical support and documentation is located at: https://groups.io/g/TheVeteranSDR
Please do not use this website to obtain technical support. Requests for technical support via this website will not receive a response.

Enclosure not included.

NOTE:

This is not a kit. Included with the PCB will be an installed PSoC and PCM3060(fine pitch IC’s), Front and back panels to fit readily available extruded aluminum enclosures, filter module PCBs for all Bands.

There is a one to two business day lead time before shipping the kit.



Magnis SDR 160M -10M 10 Watts
$39.50
RD16HHF1
RD16HHF1 is a MOSFET type transistor specifically designed for HF RF power amplifiers applications.

These are genuine Mitsubishi MOSFET's


RD16HHF1 RF MOSFET
$4.50
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