This is just what i need! I'm trying to minimize my radio equipment (running out of space) and whith this mod, i can remove the cb (older, big station model) I bought the 705 for it's size and HF/vhf/uhf combination, adding cb capability is just awesome! Thanks Andy! ❤ Subscribed!
I can confirm that this works. I used my solder station with an extra-fine-point tip at 700 degrees with an exactor knife and a magnifying glass-lamp (LED) to heat up the diode-spec on the lower left bank and was able to lift one end of the diode. I put everything back together and worked like a champ. I'll be posting some pics to FB soon
I just did it and it worked IC-705 (US version) Thank you so much!. I Only used small slanted cut de-soldering tip( not much luck with a point tip) @ 390 degrees (centigrades) almost the same size as the soldering on the diode (to avoid damaging neighbouring components), no flux, and not hot air. It took less than a minute to bubble under the component (used cheap digital microscope from amazon). A that point I switched to the other side and applied minimum force sideways. They came off clean, one at a time. It took a lot of practice with an old iPhone since this is my first time doing any of this. Removed surface components for one afternoon after I felt confident enough to do it on my brand new radio!. It was intimidating at some points but im so glad I did it. Good luck guys!
Hi Mate it infuriates me to see people using cameras that invert the the picture, text is all reversed and screw drivers that are turned the wrong way. is it a Iphone issue?
Don't ever make modifications like this when the electronics are bad on a cloth, it's better if it's on a table, use electrostatic mats because then you'll be crying because the £1K equipment won't turn on
A nice little handheld CB could be handy piece of essential equipment in any emergency. Gathering information and the need for reliable communication network hasnt changed for eons..
There's a catch. In the U.S. and some other countries, its 4 watts max when using the citizen's band radio service on FM and AM, but 12 on Single Sideband. Does the radio know to lower output, or do you just have to be careful?
Any idea what is the bandwidth on the euro version compared to the USA version. Is there a mod to open up the USA frequencies which are from 440 to 449 MHz?
Does anyone know the difference between the USA and EU 705's, both with this mod? The EU version is less money ordering it from overseas even though I'm in the USA. No seller here knows even the big one.. Tryin to save a buck on the radio for a tuner. Great video by the way!
I wonder if the manual has details of what diodes do what frequencies. Back in the 70s the Icom IC 240 used the same diode synthesiser control system to activate channels
There is No Reason that hf rigs cannot have an am and fm 5 watt, 12 watt ssb, 27 mhz cb band mandatory, in the radio...paying over $600 for a radio should give at least full access to cb channel 9, which is monitored by police, and 19 is the other ultimate channel. Then need a separate license for gmrs...sillyness. The radios do look fun to collect.
Hey I was watching your ebike Trek 5 Marion video. I bought one of my friend but he didn't have the charger. Can you help me with which charger I need to get? Thanks!!!!
There you go he says and zooms right in on lots of rows of diodes. There it is you can see where I removed it, but no we couldn’t. All we could see was a mass of electronic components. You should have circled it, der!
did this to my 7300 ... i recommend to use filter3 on FM because otherwise deviation is too large for most CB radios. You can store the channels in memory and have a very fast channel scan and can use the buttons on the mike for switching channels .. cheers! very nice setup!
Hey Guys ! Keep cool ! .... Very usefull video before opening the 705 to get it TX .... on 60M as well, if you don't like CB ! Curiously It doesn't from standard. Thanks Andy.
Nice video! Would be nice to have 4m on rig this as mentioned. Nice rig nonetheless. And yes 11m is busy these days over in Cambridgeshire/Suffolk as well! 73 DE 2E0HIA
Hi Andy, and others in the community, Just wondering if you or anyone on here has had any luck with widebanding this to cover TX/RX on 4m/70Mhz and what output power you're getting if any. I'm seeing mixed reports on online forums. It would be great to hear about your experiences with it. 73's Tom
Yes, after mod, the radio can also receive and transmit on 70MHz, complete shortwave (excep. lowest frequency, under 1,6 MHz), It transmit also in the airband with all of modulations! 2m - from 118 MHz to 173,99 MHz 70cm 400 MHz to 469,99 MHz 6m from SW to 54 MHz 4m from 68 MHz to 74,79 MHz 73
@@DontM8-__- it won’t. I did the mod and it only will TX up to around 457 mhz. If you have another radio close by monitoring gmrs and you are transmitting on same freq after mod you will hear it on other radio but I think it’s coming from the portion of the radio that hasn’t went thru the amplification circuit yet. With a watt meter you will see there is virtually no output power on gmrs. Maaaybe .01watt. Everyone else I have found is having the same results after the mod.
Cheers matey , not sure I would be confident enough to take a chance messing with the 705 inners, but was good to watch, I’m literally back to radio this year, used to have a CB in the 80s, an old maxcom 4e lol, got my ham licence in March and got a bit bored with Ham so bought a Randy 3, just need to get an antenna outside , daft question coming up, could I use a mag mounted antenna in my loft, I wanted to buy the Sirio 5000, would it work? I’m sure the SWR would be all over the place, I almost pressed the buy button earlier but held back, all the best mate
Right, so hold fire on the sirio, it'll never work great in the loft unless you get really creative and make a massive groundplane or loads of radials underneath it, mobile antennas are groundplane antennas so they need a really good groundplane. The best sort of antenna for cb is a 5/8 wave vertical 30ft above the ground. Yeah it's gonna be big but that's just how it is! Alternatively the sirio boomerang on a pole on the ground or mounted at gutter height (or higher) is a smaller option that still works well. Cheaper option is a wire dipole from ebay for 11M on a 10M telescopic pole from amazon on a heavy parasol base! A lot of CB action is on SSB but there is activity on FM, you'll likely need an amplifier too as everyone runs a bit of power these days to get over the noise! I'll do a video on all this soon!
It's easier to just crush the zero ohm resistor with a thin pair of snips..That's the way I've always done wide banding on mine,, that way you still have the solder pads in place should you want to add a blob of solder to return it back to amateur bands only..
🎉🎉new drinking game🍺🍺🍺 Every time Andy says “Basically” take a shot, I’m currently in hospital with alcohol poisoning and the doctors say my liver will never recover 😂 On a serious note another fantastic video Andy and great to see CB’s coming back in to fashion.
@@andykirby don’t edit them out this is going to be a new trend 😂 yea I’m all good thanks Andy, currently in New Caledonia in the South Pacific building a crane.
I have an Icom IC-718 and an Icom IC-728, both full coverage HF ham radios. The 718 is a fairly new radio, has been around more than 20 years, but you can still find them new. I understand they are being discontinued. The 728 is a much older radio, last made in 1992. They are both much larger and heavier than the IC-705. They are intended to be used as base stations. I consider the 728 the best radio, it has a triple conversion superheterodyne receiver, something you just don't see anymore. It does not have menus and is not programmable. Both put out 100 watts max. The 728 has what is known in the U.S. as a MARS mod, which allows it to work on 11 meters SSB, both transmit and receive. The 718 can be converted, but it is much harder to do, and I don't want to ruin it. I would never try what you just did. Good way to ruin an almost $1400 radio.
@@benspeedschannel888 I was like that too, just forced myself to do it. Like with anything you're anxious about you can either force yourself to do it or remain scared forever.
Awesome, you have and esk8 too. Good vid, I want to mod my 705, I already did it to my 7300. The 705 is so much better for portable ops, I am thinking of getting the backpack just for skating around.. :D 73's N7URH
Great video Andy. Ignore the negative comments below from the disgruntled & uneducated. Keep on enjoying the radio hobby on all bands including cb radio. Cheers.
Yes. And I hope for an even better successor with ATU, backlit keys, separate antenna sockets and built in FT8 and CW decoding. Best would be some kind of software plugins for several digital modes, also for the ones still to come. My 705 shows some quirks when I use it with a directly attached whip. Obviously interference radiation from the display.
I use mini wire snips and just cut it with a vaccume running along side it...... diode will just shatter and all bits just get sucked up...... This stops the risk of any heat damade to the rest of the board and is the safest way......
I have to admit, I would be nervous as hell doing this to my IC-705 ! I can build kits with SMT. I really like your confidence tho and its very interesting. I think I'll keep to my CRT SS6900N for 10m and 11 meters.
Трансивер для выезда на природу не предназначен, ток потребления огромный, разъёмы хлипкие , слабый аккумулятор. Лучший трансивер для полей для выезда на природу в горы это трансивер Discovery TX-500.
The last time I check channel 19 in the United States is at a frequency of 27.185 MHz. Back in the mid to late 1970’s I knew what the frequencies were for each of the 40 channels at that time!
Yeah I'm confused as well. 27781 is way out of CB land. 27405 is ch40. So 27781 is even above free handers on 27555 area . So Andy what's up wit dat man ?
@@denp54z Here in the United Kingdom the UK40 channel band plan is between 27.60125 to 27.99125 incrementing in 10 kHz steps. So 27.78125 mhz is UK channel 19.
no need to de-solder .just use jewelers small flat head the diodes pop right off slide up under and just the slightest twist and there gone.I was done in like 10 minutes start to finish.
Whats funny is the diode basically just fell apart with slightest pressure.I was more scared to try and use a soldering gun.Ive lifted traces with a iron before.What a mess..Thanks for the mod info though!!yes it works great.The 705 is awesome radio being battery supplied i can get some great DX being able to run without a power supply. It's the best LW DXer ive ever had for NDB hunting!! @@andykirby
No, the screws are not left-hand threaded. Parts of the vid are L-R reversed. The board closeup appears to be correct. But nice to see the insides of the '705! 73s, N2GX
