Nice demonstration of how the tuning the radio for lock works. I've seen quite a bit of uncertainty about the topic on IC-9700 mailing lists. It's simple when you know what to do, but I'm sure this video will be helpful for those who don't.
Just carried out this excellent modification from Leo Bodnar to my Icom 9700. The service from Leo Bodnar is second to none. Get your gps kit from Leo Bodnar, follow this brilliant video to help you install it, and you’ll never look back.
Nice summary of the board and installation Hayden. That should help people to make the decision to get GPS locked and onto 2m WSPR when they see how easy that is and you dont need to make any permanent mods to the radio to do it. Have had mine working for around 6 months now and never had an issue at all and mine runs 24 hours a day.
Was my goto reference for finally getting the board in and setting up the frequency - am already impressed how rock solid it is, I actually use WSPR on 2M with my 9700 when I'm not chasing the 'birds' but cant wait to get into digital modes as the sats go over now as the frequncy will be far more stable. THanks again, really good video. 73 2E0FWE
Thanks Hayden a nice succinct video. Best piece of advice is have the right screwdriver - JIS 2.0 - for the cover screws before you start. Another hint. The SO239 that is used for the 2m antenna on AU/US models is not soldered in place and can be simply exchanged with a N type socket by unscrewing 2 screws and swapping out. No need to remove the cover.
For anyone reading the above comment, be advised that this won't work if you're using the external GPS to steer the IC-9700. You need to disconnect the output of the GPS clock from the new SMA connector on the back of the IC-9700 and have it instead loosely coupled to the antenna input of the radio ... think along the lines of a piece of wire as an "antenna" from the GPS clock SMA output at 49.152 MHz with the signal being picked up by an antenna connected to one of the coax antenna connectors the 9700. That way the IC-9700 will be using its internal reference and you can adjust the REF Adjust sliders using a harmonic of the output from the clock as the CW source. You can use any harmonic ... 3rd at 147.456 MHz, 9th at 442.368 MHz or 26th at 1277.952 MHz.
Hi Hayden, Awesome video. There will be a 9700 in my future for satellite communications. The Leo Bodnar board looks to be a great solution for the frequency drift and I already have a Zachtek GPS locked 10MHz standard. You and the family stay safe. 73 WJ3U
When I installed the Bodnar injection kit I drilled a new hole for the Bodnar connection and left the 10 MHz ref in place. When I power the radio up, I leave the Bodnar turned off, and I turn on the 10 MHz ref sync with a 10 MHZ GPSDO connected like usual. This puts the radio very close to on frequency. Then I turn off the 10 MHz sync, and turn on the Bodnar, and the radio locks immediately to it every time. I repeat this procedure a few times a year, or when it appears the radio is coming out of lock. I use my rig mobile and It does need to be redone from summer to winter.
Excellent information Hayden! I am currently setting up my 9700 with the GPSLO from Bodnar . I have noticed the drift while operating on EME 23cm. I hope to eliminate the problem today. Thank You. Dave N9HF el99
I’m about three years late to the party Hayden but thanks for the great video’s. I just did this install and the only thing that doesn’t go well for me is the tuning it back onto frequency. My 9700 is reading 144.100.18 then it’s on a beacon locked to 144.100.00. If I uncheck the GPS box and tune it down to read 144.100.00 on the 9700 it jumps up again when I check the box in the gps software. It’s driving me nuts. 😂
Hi Haden love your item I purchased one of the Leo Boards and injector but unfortunately the IC9700 has died the PTT out put to the amp ( even with the icom circuit ) taking out Q2932 TRANSISTOR and now nothing on the screen VK7KWB Bryan
What is really going on with these companies that make such nice radio equipment but they can't simply install a stable master reference oscillator in them. People pay a premium for it already so a little extra cost for frequency stability and accuracy should not be an issue for most to pay a little more.
Because sub 1 Hz frequency accuracy at 23cm is not a simple thing to achieve when the inside of the rig is changing temperature during transmit cycles. That's why high end radios have external ref inputs. It's a shame that Icom screwed the pooch so badly with the ref implementation in the 9700.
Good video, congrats and tnx to share. Not needed yet to mine, I´m not operate WSPR or 1.2GHz yet. Let see in future. This affect normal operation on 432MHz also? 73 CT7ABD
I believe a combination of both. The inductor sits lower in the oscillator can than Minikits and I think it’s slightly more output but I would have to check
Anyone having problems with the screws that came with the Leo Bodnar board? Tryign to install mine now, they are not long enough to catch the PC board??
I saw another one of your videos, where the running fan would cause it to drift which sounds like a thermal problem. The new board looks like it also blocks air flow, I wonder how it would work with just adding the unconnected board. The goal would be to control rapidly cooling but not let it get to hot -constant temp regardless of fan state.
Why can't the internal reference oscillator be bypassed instead of "swamping" it with a super intense outside source. This just seems like a mickey mouse way to do it.
@@kevinmccool3719 You can, and some of the solutions out there do it that way. But it requires modifying the radio electrically which is not something most people would want to do. This is easy to install, and can be easilly removed to put the radio back stock if you need to return it for service. It's a pretty ingenious setup. And it works great.
Great video Hayden, just one question, once the "enable output" has been ticked do you just close down the software and does it run in the background or do you need to keep the software running. I have the units ordered but just a bit confused as to how it operates in everyday use.
@@HamRadioDX Brilliant mate, I have a USB hub with 2 power output ports so once set up I'll pull it out off the USB and into the powered USB port so it's constantly on :-) Cheers.
Good Evening Hayden, do you by chance have links for the Spectran and TPI-Link Signal Generator downloads? I would like to follow your calibration process exactly but Im having trouble finding the links for the software of the peripherals you used in your demonstration. I'd be most appreciative if you could help me with those links?? Good day my Friend, and Thanks for everything!! de Danny NF4J
Question, maybe dumb, when you used your TPI link signal generator to create that 1200mhz signal, did you inject this directly into the front end of the 9700? If so, what db level did you set? I was looking at picking up one of those TPI signal generators, they look super useful.
Do I just hooked it up to an antenna (a little test log periodic) and hooked the 9700 to one too. I just set the dB level to about -70 which was super strong. The lowest the TPI will go is -90, so you need more attenuation if you were to plug it into the radio, but... I didn't do that just in case I accidentally hit transmit and blew it up!
@@HamRadioDX So I just received my injection board and their mini GPS. When I enable the output via the software, it does weird things to my 9700. It's like it's distorting the received RF I might be receiving at the time. For example, turn on my RF generator, things look good in the waterfall. Enable the output of the mini GPS clock, and I get all kinds of RF on either side of the waterfall. I took a screenshot: imgur.com/a/ByweUoU No idea what's happening with it. I shot Leo Bodnar support and email.
it's crazy to think at the price this readio sells, it needs such a hack in order to be stable... that 9700 was put on the market way too fast, it's way too expensive and has design flaws on top of not be a wide band receiver... that is a lot of money for what you get...
I agree, this reminds me of my Yaesu ft-991 with faulty finals. Yaesu never could fix it properly after 3 attempts under warranty. I gave up. Now it's a receiver only. What kind of b.s. are these companies trying to pull nowadays, guess it's all about quick money and profits, who cares about the customer and if the product is any good. I don't understand their mindset of thinking.
there are good design reasons why it only covers in bad and not wide receive signals. the stability hack: I could easily wspr full power up to 70cm without issues where others could not decode me. Only on 23 it became an issue. FT8 on 23 most of the time worked. For most the stability is not even an issue. It's well within the specs. Now regarding the price -- just give an example of a compareable radio that has approximately have the same features at a lower price point.
I wonder if ICOM will ever address this issue with a hardware revision? IC9700 MKII perhaps? They could incorporate an SDR out while they're at it; for the 7300 too.
Probably never. Look: they released the IC-705. It has a built-in GPS receiver. It cannot lock the radio to the GPS frequency. It cannot even lock the radio's date/time to the GPS. Stupid.
@@Rob2 but I guess that would probably possible since they are SDRs after all, I am pretty sure it can be programmed... will it ever be done, that is another story...
Quick question. Does the drift effect 2m for EME JT65? Or this primarily effect the 1.2ghz? I'm tying to get my first EME next Saturday during the contest, but I believe it's only an issue on 1.2. Thank you.
The drift is really only an issue on longer transmissions modes such as WSPR etc on 2m. JT65 works fine especially if you have the auto calibration sync with 10MHz connected to the back. 1.2 GHz would be another story though
what a pain in the arse to get this thing on frequency, has there been any firmware updates from icom to make it lock better using an external 10MHz external reference?
Can you just use the “sync to ref” button on the 9700 to set? Instead of adjusting manually using the course and fine sliders on the 9700.. sorry for the dumb/newbie question... ;)
Hey mate, the sync to ref button only does a calibration of frequency. The radio drifts due to thermal temperature changes around the oscillator. The latest firmware can continually track, but it's still not fast enough to stay on frequency. That said, it's good for probably 95% of situations.
Yes. If you have an external 10 MHz source connected, you can turn on the sync for a moment, then turn it back off, and then turn on the Bodnar. That's how I do it. However, the instructions with the Bodnar unit have you disconnect the 10 MHz ref cable so you can use the chassis hole instead for the Bodnar cable. So if you do it that way, your 10 MHz will no longer work. I drilled a new hole for the Bodnar connector on the back panel and left the 10 MHz connected.
Hayden, I haven't read through the notes below but how would you summarize the Bodnar Injection board performance? Definitely worth it or not? 73...de NF4J
@@HamRadioDX Thanks Hayden, I will be doing that Mod very soon...I received my 9700 2 weeks ago for my 53rd Birthday and I really like it! Thanks again for the Great Tutorials!! 73...Danny - NF4J
@@HamRadioDX even on 23 ft8 worked ok. not super good though. On 70 and 2 - no issues with my unint. wspr on both bands (110 sec TX !) all just fine. 23 failed there.
Try and push down to create a bit more torque. But be careful! I had one screw that was the same, just a little bit of harder twist, but don't bur it out! Good luck!
@@kevinmccool3719 I think it's a standard that they have been using for decades - I'm not sure is my honest answer. I've not had time to have another go at it for a while due to other stuff.
@@kevinmccool3719 I did not get a different driver kevin. Just used my 20 years of experience to remove them. You cano't see if that I used a normal head.
@@RoelandJansen While they look like Philips screws they are actually JIS screws -- Japanese Industrial Standard. Best get the proper screwdriver. The the first owner of my rig also totally sheered one of the chassis screws. I had a devil of a time getting it out. Now I need a replacement screw for that hole.