Creating an RF Output on the ICOM IC-7300 with the RadioAnalog PTRX-7300 (
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- Опубліковано 20 сер 2024
- The RadioAnalog PTRX-7300 is an add-in for the Icom IC-7300 that creates an RF tap for RF receive that can be used to drive a software-defined radio (SDR) receiver, in this case the SDRPlay RSP1A. In the video I install the device and demonstrate it. See www.radioanalog.com.
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And good luck dropping all those screws!
A carpenter walks into the hardware store and asks for a dozen 16 penny nails. The clerk asked him what he is going to build. He tells him he is going to build a house. The clerk says you can't build a house with only 12 nails. The carpenter says it will be enough after I pick up all the ones I drop!
I usually test my work BEFORE I screw the lid down!
So actually after I purchase the SDR Radio and the adapter it has cost me half of what I paid for the radio!
That big screen looks so pretty! Good job Dave!
Very good article and you can see the high build quality of ICOM. Will definitely get that upgrade. Thanks Dave.
Thank you Dave. You can download Omnirig and have them work together. You can then tune either the 7300 or the computer. I get my PTRX-7300 next week from DX Engineering. This device is awesome!
That's what I did. Works great. I love the PTRX-7300
VERY interesting video! Thanks as always, Dave!
I was using that MFJ SDR switch and OmniRig to team up an IC-718 along with an RSP2pro. Another difference using this method is that you aren't restricted to using your expensive and super-capable SDR as a mere sidecar to another radio, leaving many of that receiver's features unusable and unused in the process.
The RF issues of leakage and match with the SDR switch were something that I had to work hard to mitigate leaving me desiring something simpler and integrated, so I got the IC-7300 to replace the 718/RSP2pro combination that I was using.
I do miss seeing more band displayed using SDRuno with the RSP2pro because it's harder to catch broadcast stations when they are active now using the IC-7300, but it is very easy to spin the dial over too.
I wonder if giving the IC-7300 a couple more edge options might be possible in an update to the firmware?
I sincerely wish there was a better way to run both together or separately without the RF issues.
73 de N2NLQ
Dave, here's a $30 alternative (on eBay w/ free shipping - HRO has it for I think $40) that will pull a RF tap from inside the ic-7300 to interface to your SDR and create a panadaptor on the computer. The SDR is protected from excess power (which will damage your RSP1A if it's directly in parallel with your antenna) when you transmit using this internal RF tap. It comes out the same square hole in the back that currently is occupied by the external tuner connector. You lose the external antenna tuner connection but it's still available inside the radio (you put/push the tuner connector back into the radio) and if you really need it you could cut a hole - I suppose, and bring it out. I'm pointing this out because you get the RF tap functionality for $200 less (again, no soldering for this solution, etc.). This solution probably has some signal loss over the $230 solution but it works. I have the RSP1A and this solution absolutely works great with my IC-7300! I'm just pointing this out as an option for those looking to save a little money on their ic-7300 solution. I learned about this via a youtube video that's on the SDRPLAY website. An SDRPLAY employee discusses this adaptor functionality and installation.
Just FYI! On eBay search for RX Adapter for ICOM IC-7300 ( RX7300 - SMA )
At HRO search for RX7300. HAM RADIO OUTLET RX7300 - SMA Keep up the good work! 73 from your "neighbor" in Fort Collins
Very confused by this. Can't find any installation instructions for this on their site. Does it work with SDRdx (or similar) to function then as a panadaptor? Obviously saving $200 got my attention! Any higher risk to the IC7300 using this versus the PTRX-7300? Hope you are online and replying as would love to know if it's still working well for you. Thanks
@@videoric I found this video on the Inrad adapter. Shows, step-by-step how it's installed. ua-cam.com/video/HBajms1EnuA/v-deo.html
Thanks, Dave. I have the MFJ device and after seeing your video and reading what the manufacturer has to say about it, I may have to pick one up. I'm just glad the MFJ device wasn't an arm and a leg.
73, W6TUS
If you hook the Ptrx-7300 BEFORE the ic7300’s internal filters then you can use the filters in the sdrPlay and see ANY band... not just the band the 7300 is set on.... (instructions on the radio analog website)
Which tap point is actually better? I have it installed in the port described in the original instructions now. I am using a RSP1A SDR. Is the filtering good enough in that unit to bypass the 7300's filters? Any advice?
David Kaye - just depends on what you want to do... the SDR Play filters are quite good. I switched from the original setup and haven’t looked back. I really like being able to monitor a different band than what is currently tuned on the the ic7300. If you want to use it as a big panadapter. It may be better to have it tied to the same tuning as the 7300.
the SDR program works very well. great piece of kit. work better when you can see it on a pc monitor.
Very good subject presented in a way that is easy to understand. I have an IC-7300 but live in an apartment and limited on desktop space for additional hear such as a larger monitor. On an additional subject, more of those outdoor pictures at the end of the video would be very welcomed. 73 de WB0RSZ
Hi Dave, your FTDX-3000 has both IF and RF out jacks. My Yaesu radio has the same configuration, and I have found the IF out to be more useful for use with an external SDR and panadapter software (Win4Yaesu). The nice thing with the IF is you see exactly what the radio is seeing internally. FYI: The author of the Win4Yaesu software has an Icom version called Win4Icom that supports either an SDRPlay RSP spectrum or the internal Icom spectrum of the modern Icom radios. The great thing about the Win4Icom and Win4Yaesu (and Win4K3Suite for Electraft) is in addition to a great spectrum display you get full radio control.
Hi Dave, I have one with my IC-7300 and plan to connect it to my RSP duo then have the option of diversity reception. Looking forward to connecting it up. Thank you Dave for the video! Bob N3SWL
Thanks Dave for listening to your viewers. I bought mine two minutes after I plugged in my IC-7300 for the first time. Unfortunately I had to get the PTRX-7300 from the UK at Martin Lynch and Sons. It cost a bit more than what DX Engineering has it for as I had to pay conversion and freight from the UK. I use Omnirig to sync the controls. Not too often I run the radio without the SDRuno as it make tuning the radio a breeze. Sure it takes longer to get everything running but it is worth it. With the extra $250 where can you buy a radio like the IC-7300 with this feature? Again thanks for listening and acting upon it.
This works very well I am having great fun with HRD.
Hi Dave, a tip for you. I found that I can stick a small molydnd#^*&^$%^ magnet (1/4" ^3) on the shaft of the screwdriver to facilitate lifting a screw out of the hole. Then stick the screw to the magnet. After all the screws are collected just slide the magnet and screws off the shaft and set aside for safekeeping. When it's time to reverse the process just do so and you can put each screw onto the tip to lower into the hole...B
In case anyone is interested, they have a version of this kit for the IC-9700 as well.
This is just the type of step by step installation tutorial needed for this nifty device. Maybe next time can we see a few more closeups of the screen during some actual QSO’s? Many thanks, Dave. Rob/WA9RAD
you probably dont give a damn but does anyone know a way to log back into an Instagram account..?
I somehow lost the login password. I love any assistance you can give me
@Jax Omari Instablaster =)
@Devon Archie I really appreciate your reply. I found the site through google and I'm in the hacking process now.
Seems to take quite some time so I will get back to you later when my account password hopefully is recovered.
@Devon Archie It did the trick and I finally got access to my account again. Im so happy:D
Thank you so much, you saved my ass!
@Jax Omari no problem :D
Good article.
Just watched a little farther in the video. I used the alternate connection point in the radio. I have complete rig control from my PC screen (touch screen) or with the mouse.
Another great video Dave :-)
I have a bad habit of scanning the small instructions and printing them on big paper. This makes them where I can read them plus I save them to the folder for that equipment so I can print them again later if I need to. Paper work something gets lost.
Love your Photo Thanks Dave. Great Video.
I Thank you, Dave!
That is a very nice product for that radio, and you did a fine job with demo. As another suggestion for another show/demo, can you show how the LP500 station monitor is set up with the radio, and what are your thoughts regarding the LP500 ?
Thanks Dave, I hope to see something for the Yaesu FT-991A soon.
I'm curious about whether shrink-wrapping the tuner lead, and sticking it down inside the case, in the void adjacent to the speaker is practical. If done correctly, it would seem a benign way to keep them together.
Having
some really odd behavior that maybe someone could shed some light on. I
have an IC-7300 that I am using SDRuno and an RSP1A as a panadapter for
it. I am doing this with one of those PTRX boards installed in my 7300.
It was all working very well. Had to tear all my stuff down to set it
up in a new desk I got for the shack and when I put back together this
happens. When I started SDRuno, it asked me if I wasted to install the
new version and I did. when it starts up now, my radio automatically
goes into transmit. Looked at the settings in Omni-Rig and nothing has
changed. If I disconnect the PTRX and run SDRuno on its own it works
fine. Anyone have any idea what could be going on here? Thanks and 73's
Bruce
Hello Dave , if i fit this ptrx7300 will i need the mfj7080sdr or whatever its called TR switch ? I cant find much info on that matter .
Am I the only one who bought the remote software that has all thease features? Wondering if there's still huge latency in the sdrplay after this is done? I still want one tho, just to find out if it's worth it or not.
Excellent! Just what I need. I have an SDRPlay RSPdx but my transceiver is an old but reliable Kenwood TS-830S hybrid. I know it's a boat anchor but it's in good condition and the only radio I have at the moment. My question is: Can either the MFJ-1708B or the RadioAnalog PTRX-7300 Pan Adapter Module work in my TS-830S? I expect the latter would require some minor mechanical and electronic refitting -- don't know about the former. Thanks!
I have a bad habit of scanning things that are to small. I then save it to a folder on my computer. Then I print out on full sized paper! My eyes are old also! But this gives me larger print and if I lose the paperwork I can go back to my computer and print out a new one. Must have a good system to save them so it can be found later if needed.
Take an old phillips screwdriver and grind the tip off to make your JIS screwdriver.
Has anyone tried the PTRX-7300 from Radiospectral? Claims it's less noise and cheaper with a fuse.
Dave, stop by Harbor Freight and buy yourself a couple magnetic parts holders.........you'll never leave home without them! Also, I don't keep any liquids on the work bench, not a good idea....even just water - k6sdw
Thanks for the tip!
This might be a stupid question but, I don't understand what this accomplishes... As far as I understand, it is a RF tap from the radio, low enough to feed into the antenna input of a SDR. I may be terribly mistaken here, but what is the difference between this and hooking your station antenna directly into the SDR?
What are the advantages and/or disadvantages of the two different methods of installation? I like to use my SDRPlay on its own to listen to radio. Will I have to have the 7300 powered up every time I do this after I connect the two?
I don't understand why , if you already have an SDRplay, what the advantage is of then spending $200+ to get RF output from the 7300 ?
I get a big over load on radio and SDRplay during transmit.
I have the IC-7300, SDRplay 1A with HRD and the same internal adapter you installed.
Wondering if you have any problems during transmit, other than the over load during TX it works great.
73
wd4dda
Yes, when I transmit it shows up as a huge signal. That's normal. Your SDR is not going to receive any other signals during the time you're transmitting.
I don’t believe your comment about loosing 3dB signal (when using the MFJ-1708 in receive) is relevant, as for most HF listening, the noise from the antenna is usually at least 10 dB higher than the internal noise from the receiver. So cutting down the signal by 3 dB wont effect SNR, as the noise from the antenna will still be setting the SNR.
True on receiving, but losing 3 dB on transmit means that of your 100 watts, only 50 get out.
@@davecasler of course. But the MFJ-1708 doesn’t loose 3 dB on transmit.
So I see that the 7300 accessory out plug includes a pin that can be configured for either AF out or IF out. Could that IF signal be piped into an external SDR device to achieve similar results?
Yes, but the bandwidth isn't that big.
I would buy something like that for the 9700
They now have a version for the 9700
Hello, is there a maximum power output limitation with this device? IE: running an amplifier.
The AMP feeds back what’s called an ALC voltage (automatic level control) to reduce the power put out by the 7300 to match what the amp needs. Some amps (like mine) don’t have this, so I set the 7300 to 62 watts when running the Ameritron ALS-500M.
Test question,, I have a Ten-Tec Jupiter and am going to purchase an SDR play. I am going to be using a discone antenna to feed it. I shouldn't need the MFJ switch box or the analog connector you put in the ICOM7300. Yes or No??
A VHF dis-cone wont give you a good performance at HF. Look at one of the receive-only loops on the market. IF the loop points its null at the transmit antenna, you should be okay.
Can this degrade the 7300 performance since you are adding connections in the system?
In theory, yes, it adds an isolation amp which adds a hair tad of noise. However, we’re talking HF, where the noise temperature of the radio is well below ordinary band noise, so it’s not going to make any practical impact.
Warranty void if You connect stuff inside a radio?
Where we're going we don't need (flips visor down) warranties...
Dave, I got lost from the back of the 7300 to the computer. Have you done something on that? Is the SDR hardware or software in the computer?
Hi Stan, Dave has an SDR radio in a little black box - it's the SDRPLAY RSP1A. You can check it out at the SDRPLAY website sdrplay.com. He has a connection from the board he installed to the RSP1A and then it has a USB port on the RSP1A that you run to your computer. He had the SDRPLAY software (free) "SDRUNO" running on his computer. There are a bunch of youtube videos that show how to make the connections. Go to about 19:05 on Dave's video and you'll see him connecting up the "little black box".
Dave, take a look at this video from DX Engineering: ua-cam.com/video/G2v2oh_xFmg/v-deo.html. There is far more to this board then first meets the eye. With some additional software and a slightly different hookup you can control the IC-7300 from the computer and also see a different band on the SDR and IC-7300.
Nice. I have a problem with many of the newer radios... Models starting back about 2010 perhaps earlier. With all this microchip technology and gps systems combined with this 5G technology and its capabilities I just wonder if these radios could contain chips laying dormant until 5G is in full swing AND a need by the government to be better able to identify any given individual at any given time.
Someone operating a Ham radio station and speaking against government tyranny could easily find themself not only found but recorded even without transmitting. Individual record keeping by a government could certainly allow much greater government control. Anyone may not be able to discover the chip in a ham radio while the chip is in a dormant state.
Terry Weaver that’s a strange theory, if I was wanting to spy on the population I suspect that I would incorporate my tracking devices into something a bit more mainstream than an amateur radio rig. Position reporting can be done without needing 5G speeds, Any transmitter gives it’s position away, look up TDoA.
Qq1
You have an expensive sdr radio with the icom 7300. Why do you want another sdr radio attached to it You people make no sense.