1. Operating the JH-15 SDR radio
Now that you have downloaded and installed the JH-15, it is time to setup the radio for easy operation. Begin this process by starting the dsdplus program. If you setup a shortcut on your desktop then click to start. If you did not set up a desktop icon, then navigate to the folder where the DSD+ resides in the C:? drive.
Click open the DSDplus application. It should be the top file in the folder. Please note that you should add to desktop for easier access.
Once started you should see four windows open. Minimize all windows except the command prompt window shown in the next slide.

2. Operating the JH-15 SDR radio

3. Operating the JH-15 SDR radio
The first arrow lists all the input devices available on your computer.
The next arrow lists all the output devices available on your computer
For DSDplus you need the third arrow to default to INPUT VB CABLE and the output to your audio preference OUTPUT Speakers, Headphones or Soundcard audio out.
If this is not the configuration you see you can set them to default in your sound control panel option. If this interferes with other programs you use then you have to manually set the DSDplus program to those defaults.

4. Recommended (batch file)
We recommend writing batch files to open two or more versions of DSDPlus.
Open notepad and type the following: start DSDPlus.exe –i# –o# with # being the digit of the input devices as read on DSDPlus
Then you name it DSDPlus1 or DSDPlus2, etc, followed by .bat and save it as “all files” and not a “text file”
Save it in the appropriate DSDPlus program folder where the files are located and then make a desktop shortcut for each batch file.
By setting up each DSDPlus with a separate VB Cable simultaneous transmissions are not muted as they would be if on the same virtual cable.

5. Batch file
So for example if your dsdplus command screen lists the cables as number3 and 4 in input and your speakers are number1 on your output you would write two batch files
Start DSDPlus.exe –i3 –o1
And the other batch file would be
Start DSDPlus.exe –i4 –o1
Again you will save each batch file in the appropriate DSDPlus program file as a .bat with as “all files” type of files
Test your batch files after completing and confirm that the settings are correct in the DSDPlus Command Screen shown earlier.

6. HDSDR Program Control Panel

8. HDSDR Settings Step by step
1. Click the EXTIO button. (it should be lit up light blue over the dark blue of the FrqMgr button above it)
2. DEVICE: All your radios should be there (1,2,3 etc.) If not you did not install ZADIG drivers correctly. Find radio one and make sure it’s selected.
3. SETTINGS: Direct Sampling Disabled- Sample Rate 1.2 Msps –Buffer size 16 kB – Tuner Gain check Tuner AGC and RTL AGC. Offset Tuning should already be checked. Close the box.

9. HDSDR Settings
Soundcard settings are both set to VB Cable in RX in and out. Ignore the TX side
Bandwidth should be set to for demonstration purposes
Make sure you have selected FM located above the Frequency Numerical Display
Select your frequency by following the directions on next slide

10. HDSDR Settings
Tuning to specific frequencies can be done several ways.
1. add a starter to your FrqMngr.
Select USER1. This is where you should add your favorites as you discover your specific area signals
Located at the bottom is where you enter your data. Ex: Name P25 Frequency LO (851 MHz) Frequency Tune Then select FM select “add”

11. HDSDR Settings
CLICK THE START BUTTON. Please note your waterfall and spectrum windows should now be visible and running.
Use your mouse wheel inside the spectrum window and roll the mouse wheel away to advance up and back to decrease frequency settings. Now you should start searching for local strong signals in P25 or DMR modes. Strong signals should look like these
When you find one make sure you adjust the bandwidth to cover the whole frequency width.

12. HDSDR Settings
The Slider bar will expand the bandwidth to fit your frequency transmission. Once you lock in you should begin to hear decoded signals through your audio. The DSDPlus screen should begin running coded lines identifying what kind of signal you are monitoring.

13. HDSDR Settings
Sample P25 C4FM  in QPSK digital data signal

14. HDSDR Settings
When you find signal you should check both analog and digital modes. This is easily done by going to the soundcard button, open the window and change the RX output back and forth from VB Cable (digital) to your Soundcard Speakers headphones setting. (analog) You can begin to get famililiar with what digital signals sound like in analog mode.

15. Finding Frequencies
Rolling your mouse wheel in the spectrum window will advance or decline your frequency setting. You can ajust the movement in OPTIONS>Mouse Wheel>Step and then the setting. Recommend 50Khz.
You can click on Tune and type a frequency directly into the keypad. EXAMPLE: Key in and check quick tune and then hit MHz button. This changes the frequency to that specific setting.
You can advance the spectrum by clicking the small red arrows left and right in the frequency bar that separates the waterfall and spectrum screen.
You also select frequencies you have databased in your frequency manager USER1 to USER5 Banks. Just double click the one you want
Find out what frequencies are available in your areas at RADIO REFERENCE
Click your state from the map and then select your county in the list below. Look for analog and digital trunks in your area and go hunting. Bookmark the pages for future reference or print them out.

16. Target the bands Target bands 1. AM – Air Traffic Control 115-130 MHz
2. FM – 2 Meter Band MHz
3. FM – 70 cm Band 420 to 450 MHz
4. FM Public Band
5. Digital Types: DMR MotoTRBO, NXDN, Provoice, APCO P25 Phase 1, D-Star and others

17. CONTACT
Start exploring the Patriotwaves Radio and signals in your vicinity. Please contact PATRIOTWAVES if you need support and some assistance. The website will begin adding other products and information to help JH15 owners with antenna boost and other program instructions for better experience. Please do not hesitate to call toll free (888) ext. 804