Sunday, 1 February 2026
CHOYONG LC90 SMART RADIO
Friday, 19 December 2025
ICOM IC-7300 MK II
IC-7300 MK2 MINI-REVIEW
Having got shut of my Yaesu FTX-1 🙏, I made the (very easy) decision to keep on using the wonderful IC-705 for outdoor use and to add the new 7300-II to the shack. And you know what? It feels great!!
As much as I really wanted to love the FTX-1 Optima, I found myself increasingly disappointed with it. Despite losing money 🙄 I was still excited to just put it behind me and get back to enjoying radio!
I had a 7300 a few years ago and it was a great radio but the Mk-II has just made things even better. That’s what you want from a new model - new features and improved function - are you listening Yaesu??
Icom have sold over 100,000 Mk1’s, making it one of the most popular and influential transceivers of all time. When introduced to the UK market (almost a decade ago), it was a genuine game-changer, bringing high-end SDR tech at entry-level prices, setting new standards. It left everyone else in this sector of the market trailing behind for the next few years.
Apart from being a fabulous budget-priced 100W HF, 6M & 4M SDR transceiver with built-in ATU, it was also compact enough to be used outdoors and the 4.3” colour TFT touch-screen was perfectly visible in bright sunlight - as a result you’d often find it used for Field Days and POTA activations.
So what does the MkII bring to the table? Well of course it has all the benefits of the original version plus a few improvements…
- An improved receiver! The old one was great anyway, but improvements are always welcome. The RMDR has been increased to 105dB for a better dynamic range.
- Improved TX Phase Noise! A 12db improvement - now -139dBc/Hz @ 1kHz.
- Improved Power Consumption! Radio only draws 700mA in standby.
- Cooler Operating Temp! I never thought the old one ran hot, but cooler is good.
- USB-C Conector! Much better than the old USB. AND it provides two com-ports!
- LAN Connector! This makes Remote Control far, far simpler! Inline with the 7610 RC.
- RX-In/RX-Out! So pleased to see this valuable addition.
- CW Decoder! So now the 7300- can decode RTTY and CW.
- HDMI Port! External big-screen display.
- IPS SCREEN! IPS replaces TFT for better detail and colours
So all in all, a very nice collection of useful upgrades! And no losses. Thank you Icom for listening to your customer-base and giving them what they want.
Looking at the front panel there’s virtually no changes apart from the colour of the Power Switch and the ‘Mk2’ logo. On the back panel however, it looks significantly different…
Having extremely limited space in the shack means that the compact 7300 is a perfect fit, but the downside is that I have to locate the radio to the left of my sitting position. To be fair, that’s not really a problem, since I’m one of those people who prefers to operate their base station via their computer most of the time and that allows me to use my PC’s 32” curved screen, amplified speakers and my Elgato Wave 3 microphone.
So the first job was to attach the supplied EMC Filter to the back wall. I’m not entirely sure that these bulky things do any good, but it’s there so I’ll use it. Next up was to squeeze the 7300 onto a shelf next to a matching Icom speaker that I already owned. Boy, that was a TIGHT fit! Then I connected my trusty LDG Z100PLUS tuner and a USB lead for the computer connection.
I also connected a LAN cable and initiated the network time-sync facility. The LAN connector is a fabulous addition to the Mk2 and I’m soooo glad they included it. Apart from keeping the clock time perfectly synced, it also negates the need for a computer for remote-control operartion - just like the 7610.
To be honest, I didn’t have access to a LAN port in the shack, so I bought a WiFi Extender which includes an RJ45 LAN port and plugged it in nearby. It works superbly and was an absolute doddle to setup! It has also boosted the performance of my computer’s built-in WiFi, making downloads much faster than they had been previously. And best of all, I paid for it with some Amazon Gift Vouchers that I’d received for my (67th) birthday. Result!!
It’ll probably come as a surprise to hear that I didn’t bother using the HDMI port at all 😮. To me, it’s little more than a vanity screen and is only of any real use to the visually-impaired.
With all the basics connected, I powered up and checked that everything was working properly. I heard IX1HPN on 20M and gave him a shout at 10W. He had a pile-up going and I struggled to get through so I increased power to 25W and still struggled, thanks to my extremely compromised ground-mounted vertical antenna 😢. After repeated attempts, he finally heard me and gave me what he called a genuine 59+.
The Mk2 receiver didn’t sound any different to the last one I’d owned. It didn’t sound any better than my 705 or the Yaesu FTX-1. In fact, I believe that most modern SDR receivers sound pretty much the same and I’m convinced that 9 out of 10 operators who attach such great value to the Sherwood Table would come unstuck in a blind listening test!
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| IC-7300 Mk2 with my 5yr old IC-705❤️ |
The Noise Reduction on the 7300 doesn’t offer anything ground-breaking and that’s always annoying to me when I witness the absolute wonders of the NR2 on the cheap Hermes Lite II - nothing comes close to it! But, it is what it is and I find most of my noise-reduction success comes from making regular use of that little RF GAIN dial!
A mate of mine (M7XCA) reckons the Mk2 pulls in a fraction more noise than his Mk1, but maybe that's because his old Mk1 is a little less sensitive than it used to be. It’s hard for me to comment right now because I’m absolutely surrounded by Xmas lights, Xmas trees, Xmas animated decorations. I sure do wish I had no neighbours! 😂
The old 7300 screen was a TFT and that has been updated with an IPS screen, offering better colours and better performance in bright light. The difference isn’t huge, but it’s definitely an upgrade. Whether it’s more durable and longer lasting than the TFT is a question with no answer. All I can say is I hope it’s better than that crappy screen on my Yaesu FT3D🤬.
The new CW Decoder works extremely well and I found that the AUTO mode does a fabulous job of determining the speed and decoding accurately (with a clean signal).
Knowing that everything was working well, I downloaded the latest drivers from Icom’s website and then plugged in the USB cable to the PC. With that done, it was time to install the RS-BA1 Remote Control software and connect the lovely RC-28 external VFO Dial.
Once I’d got that running (I had to update the software to get it to recognise the 7300Mk2), I started to focus on installing an SDRPLAY RSPA1 receiver.
Originally, I thought that I could just plug my SDRPLAY into the 7300’s RX out, because that’s what everyone was saying on the YouTube (and even at Dealerships) but when I did, I got nothing! You need to “activate” the RX antenna ports by switching RX-ANT on in the Function menu. The trouble with that is, you’re 7300 will then stop receiving and the radio’s panadapter will go dark.
And then I recalled a similar experience with my IC-7610, where you need to place the external receiver into a loop using a splitter. I've created a diagram showing how to connect it...
By using a decent quality splitter such as a Mini-Circuits ZCS-2-2+ or a Diamond SS-500, you can be assured that you are also providing a good degree of isolation between your transceiver's receiver(s) and the external receiver. Typically, you're talking about more than 30dB isolation, so there's very little chance of interference from one receiver to another.
At the time of purchase, the Mini-Circuits splitter wasn't available anywhere in the UK - fresh stock wasn't expected for another 3 months, so I turned to the Diamond SS-500 which is well made but at £70 is quite expensive and has an insertion loss of 0.8dB. The Mini-Circuits device has a lower (0.4dB) insertion loss, but costs around £90. As usual in these post Covid times, stock shortages pushes prices up to ridiculous levels, and you have to choose between stumping up the cash or waiting months. I chose the former.
The Diamond SS-500 is good from 0.5MHz up to 500MHz which falls way short of the SDRPLAY's frequency range, but that's of no consequence to me, since I'm only interested in HF coverage.
Before I could install the splitter, I needed to make up some PL259-to-SMA patch leads using short lengths of RG-316. Once that was done, I connected them all up.
I then loaded the latest version of SDRuno along with all the various add-ons and also made sure that OmniRig was running and configured for the IC-7300.
With everything setup correctly I switched on the radio and ran SDRuno. The two interfaced perfectly and it was good to see the full layout and tools of SDRuno.
Version 1.4.2.1710 is the latest version of SDRuno at the time of writing and is incredibly rich in features. There are a couple of bugs, but the software writers are fully aware of them and are working hard to sort them out. I’m also going to install SDR-CONNECT V1.05 too, along with SDR-CONSOLE...
Anyway, the V.1.4.2 software ran perfectly and it feels good to have SDRuno back on screen, especially this latest version which allows you to have up to 16 virtual receivers running at the same time!! Things have changed significantly since the last time I connected an RSP to a radio and I'm looking forward to exploring and experimenting.
PLEASE NOTE> Once you’ve made these connections, you need to switch the Receive Antenna option on which can be found on Page-2 of the FUNCTION MENU. I’ve actually assigned the RX-ANT function to the VOX button for quick access. Please note further(!) that whenever you use a splitter (no matter how good it is), you will lose a small amount of signal, so if you wish to avoid this, you can use an SDR Switch instead such as this one from ML&S.
Needless to say, you cannot use this Splitter method if you also want to add an external RX antenna such as a LOTG. You'd have to use the more traditional method of an antenna switch such as the MFJ-1708B, etc.
BEAR IN MIND that you don’t need an antenna splitter or an antenna switch if you’re happy to just use your external SDR for listening to your signals - just connect your SDR to the RX-OUT port, switch on the RX-ANT and away you go.
The final step of the 7300 installation was to configure it to communicate with the SUPERB remote-control app called SDR CONTROL FOR ICOM. I have used this with my 7610 and 705 using my IPad and it works flawlessly!! It’s simply the best RC software out there if you have an IPad.
So that's it for now. Everything is working very well and it's time to sit back and just enjoy playing radio without all the buggy distractions that the FTX-1 brought. Happy days - thank you Icom!
I'll post more after a couple of months use.
73, Tom, M7MCQ.
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Saturday, 13 December 2025
DX SPOTTER
The £60 DX SPOTTER from TopBytes is a fabulous little gadget which you can place anywhere in your shack for a constant stream of DX Spots. Alternatively, you can chuck it in your RuckShack and benefit from the spot information while outdoors on a SOTA/POTA outing.
It's a small WiFi-Enabled DX Cluster display powered by any USB power source. You can configure it so that when at home it automatically connects to your WiFi router or to your mobile phone's hotspot when operating outdoors.
It features a bright, clear 256x64 OLED screen providing you with a Real Time Clock, Callsigns, Frequencies, Modes, Info and Comments! A really handy little device which shows band activity at a glance.
From ML&S website...
Key features
- Dedicated DX cluster display for amateur radio stations
- Built in WiFi - connects to your home or portable network
- Works with standard Telnet based DX clusters (DXSpider, CC Cluster, etc.)
- Pre configured to use the UK hamserve DX cluster by default
- High contrast 256×64 yellow OLED screen with smooth scrolling
- Shows callsign, frequency in MHz and spot comments
- Status line with WiFi signal strength, custom display title and clock
- Web based configuration portal - no special software required
- Band and frequency filtering so you only see the spots you care about
- Adjustable scroll interval and spot history (1–15 recent spots)
- Stores settings in non volatile memory so it remembers everything after power off
- OTA (Over The Air) firmware updates via secure HTTPS
- USB powered - ideal for the shack, field days and portable operation
Typical uses
- Shack monitor - keep DXSpotter on the desk to watch band openings without tying up a PC screen.
- Contest support - track activity on your chosen band and spot new multipliers quickly.
- Portable and field days - run it from a USB power bank and campsite WiFi or a portable router.
- Learning tool - great for newer licensees to see when different HF bands are open and which modes are active.
Simple setup
- Power the DXSpotter from any 5 V USB supply or power bank.
- Connect to its built in WiFi access point and open the configuration page.
- Select your WiFi, enter the password, your callsign and preferred DX cluster.
- Optionally set band filters, scroll timing and display title.
- Save and reboot - spots will begin to appear within seconds once band activity is present.
Technical highlights
- WiFi: 2.4 GHz 802.11 b/g/n, WPA/WPA2 security
- Display: 256×64 pixel yellow OLED, wide viewing angle
- Power: 5 V DC via micro USB, typically 1–2 W
- Protocol: Telnet DX cluster over TCP, HTTP web interface, NTP time sync
- Configuration: Built in captive portal and web server
Tuesday, 28 October 2025
DRONE : DJI MINI 4 PRO
The day before I picked up the package from my friend’s house, I obtained an OPERATOR-ID and a FLYER-ID online. The OID is simply a matter of paying £12 but the FID involves learning the CAA Drone and Model Aircraft Code and taking a very simple 40 question exam - weirdly at no cost.
- Omni-Directional Collision Avoidance
- Advanced Return To Home System
- Enhanced Camera System
- Latest O4 Transmission System
- New Rotating Gimbal for Vertical Shooting
- 2590mAh Battery - up to 34 mins flight time
- 4K Video at 100fps - Slow Motion
- 4K Video at 60fps
- Night Shots Video
- Maximum Speed of 36mph
- 48MP 1/1.3” CMOS Sensor
- D-LOG M & HLG profiles
- Active Track 360
- Waypoint Flight
- Cruise Control
- Takeoff Weight: < 249 g. Standard aircraft weight (including the Intelligent Flight Battery, propellers, and a microSD card). The actual product weight may vary due to differences in batch materials and external factors. Registration is not required in some countries and regions. Always check local laws and regulations before use. With the Intelligent Flight Battery Plus*, the aircraft will weigh more than 249 g. Always check and strictly abide by local laws and regulations before flying. The Intelligent Flight Battery Plus is not sold in Europe.
- Dimensions: Folded (without propellers): 148×94×64 mm (L×W×H)
- Unfolded (with propellers): 298×373×101 mm (L×W×H)
- Max Ascent Speed: 5 m/s (S Mode), 5 m/s (N Mode), 3 m/s (C Mode)
- Max Descent Speed: 5 m/s (S Mode), 5 m/s (N Mode), 3 m/s (C Mode)
- Max Horizontal Speed (at sea level, no wind): 16 m/s (S Mode), 12 m/s (N Mode), 12 m/s (C Mode). The max horizontal speed is subject to dynamic local restrictions. Always abide by local laws and regulations when flying.
- Operating Temperature: -10° to 40° C (14° to 104° F)
- Image Sensor: 1/1.3-inch CMOS, Effective Pixels: 48 MP
- Lens: FOV: 82.1°
- Format Equivalent: 24 mm
- Aperture: f/1.7
- Focus: 1 m to ∞
- ISO Range Photo: 12 MP 100-6400; 48 MP 100-3200
- Shutter Speed: 12MP Photo: 1/16000-2 s (2.5-8 s for simulated long exposure); 48MP Photo: 1/8000-2 s
- Max Image Size: 8064×6048
- Still Photography Modes: Single Shot: 12 MP and 48 MP
- Burst Shooting: 12 MP, 3/5/7 frames, 48 MP, 3 frames
- Automatic Exposure Bracketing (AEB): 12 MP, 3/5/7 frames at 0.7 EV step; 48 MP, 3 frames at 0.7 EV step
- Timed: 12 MP, 2/3/5/7/10/15/20/30/60 s; 48 MP, 5/7/10/15/20/30/60 s
- Photo Format: JPEG/DNG (RAW)
- Sensing Type: Omnidirectional binocular vision system, supplemented with a 3D infrared sensor at the bottom of the aircraft.






































