I bought this a couple of months ago it is a very well made transverter, a good way to do CW on VHF, maybe it can be used with a duplexer to save swapping about with VHF and UHF antennas.
I use also duplexer because I have a dualband VHF/UHF yagi + HF long wire antenna :-) in one cable. Works good, bud when I compare it with the FT991a so this transverter is on UHF little more deaf than Yeasu. But VHF is OK.
Unfortunately, currently out of stock and unavailable due to the war in the Ukaraine. It would be the perfect match for mt Alinco DX-70t were it still available.
Hi Paul I Have The New Model that your link now points to, The Lo has a switch to add another 2 mhz, the osc is dds and it is very stable on 2 and 70cm, my frq counter is gpsdo locked, and the transverter does not wonder, but it is 110hz of frq at 2m and 400hz on 70cm so you need to remember this when tuning to correct it, The seller is very good, it arrived to the united kingdom in just over 1week, i did have the 150w 50ohm resister fail the fist day, and i told the seller and he refunded me the cost of getting another resister , the one thing this resister and the RF output tranny is mounted to the rear s/steel plate, as a heat sink s/steal is a very bad heat conductor , so i added a ally heatsink to the rf output and the power came up a bit another 2w on 2m so the heat was making it lower the power, there was also no heat sink compound on these components witch i have now corrected, The signal looks very good on my RSPDUO, sdr, Thanks Dave 2E0DMB
Hello Dave! Thank you very much for your measurements and great informations how to made this transverter even better! Thanks for this review 😉👍 73, Paul.
I am want to buy this but have a few questions about what I need. I believe these questions will help other people as well. I have an FTDX101MP and am worried about accidently blowing up the transverter by hitting it too hard from the radio. Is the input protected or can it be fused ? Also, I have a new 200 watt 144Mhz amp that wants to see 10-15 watts RF input power. Do you have a unit that is capable of driving my amp at this level? Is the keying of your transverter automatic (RF sensing) or do I have to switch it into transmit?
How is the Transverter going to TX? Why do you NOT enable the Transverter Readout on youR ICOM? So you can read the Frequency in the right way (144.350)?
cqpy2rn they drift like hell on uhf ssb tx. The LO is not stable AT ALL. Many people try to apply heat to the LO but I didn’t help. 9k drift when trying the birds
@@JayN4GO You confuse these transverters with transverters from the Transverter Store. The Transverter Store makes cheap forgeries with poor characteristics. The transceiver that is shown in the video has separate TCXOs into both bands and the stability is determined by the characteristics of the transceiver you use.
Great video, thank you for sharing. Question, at 6:27 I hear what sounds like a large motor starting and notice a quick jump in interference on your radio?
Thank you Jimbo. The sound you heard is a elevator motor in my house. Because of I am living in top floor appartment, the sound from this motor is loud because is located on top in a small elevator room 😊 But i don't realize this sound any more after couple years I live here 😄 I am glad that the roof is so close because of antennas hihi 😉👍 73, Paul
I Have noticed 2 drawbacks, one is it doesn't cover 430 mhz and there are a lot of Uk repeaters down there and the other thing is if you want to take it right up to the top of the two meter band, 148mhz say, the transceiver would have to be on around 32mhz, ad most transceivers wont transmit there unless they are widebanded, if i have that right, any comments noted and welcome,,,,if it wasn't for that i might be tempted to buy one....i have no idea how much they cost or where to get them....Fred g4vvq Uk.
You can do this on a Flexradio. The radio will, out the transverter port, transmit from 25mhz to 29mhz. It essentially ignores band lock on the transverter port.
Hi, I would be using 2/70 and 10/11 meter antennas, on my CRT 9900 10/11 radio to get 2m ssb,would I still have to swap antennas around? Would the transverter work with my radio?
@@OM0ET Great video regardless of the oscillator. A challenge to build something better if needed. But the explanation is great. I just have not used one yet. Thanks a lot.
Transverter bands are switching manually so if you plan to use crossband so is not possible with this. If you plan to use split in-band its OK. Just one negative thing is that VFO inside transverter is not much stable :)
Great video as always Paul, I have an icom 751 and apparently this would work it has a transverter port on the back for the low input power, but my question is how to incorporate a CTCSS tone, any ideas. Many thanks for sharing this txverter. Barnie.
Hello Barnie, thanks for lovely comment ;-) The Icom 7610 has in FM mode possibility to turn on TONE feature. Inside this feature is to set REPEATER TONE and also I can set the T-SQL TONE. And also there is a T-SCAN. So I can make a FM contacts trough repeaters with this HF Icom transceiver and VHF transverter. 73, Paul
That radio does not have it built in. You need to connect CTCSS generator either after audio high-pass filter or put out enough signal that it passes through. Filters are usually 300Hz and above, tones are about 30-250Hz, and 88.5Hz and up to about 150Hz is those most used.
not wide enough on 70cms 432 to 437 wide at best. pity they never thought of the usa market too further on up at 440/450mhz................................................................................................................................................but a serious question id like an icom mabe a 7300 but you never said does any or all icoms have a transverter frequencey digit change option so it looks the same on the display ?....
This is a 28 to 144/432 transverter so the input signal goes directly from the ANT output of any 10m band transceiver. It means that you have to tune your TRX to for example 28.300 MHz and your signal will be transverted to 144.300 MHz. Same with 70cm band. There is a switch. Input frequency 28.300 is transverted to 432.300 MHz. You don't need any special TVRT output on your transceiver. Just lower power to max.5W and go. 73
VFO stability is not good for digital modes and the receiver input quality is not good against to near very strong signals. But for this price I can't wait more...
@@OM0ETi do understand they can drift on frequencey and are not stable but they are not to bad. but i dont think you understand my question .. The USA band on 70cms is 440 mhz to 450 mhz hence i said its not wide enough in band width for the usa market starting at 432 mhz with a 28 IF.. as you will only get about 5mhz band width output in total but not much more. taking you to around 437mhz with a 33 IF. its just a pity they never made them too for the upper part of the 70cms band. mabe one day they will think about this as america is a big place and they could get many more sales thats all i ment. thanks for the reply sir
@@OM0ET sorry for any confusion .. my second question was does the icom 7300 or other icom models not have a frequencey offset setting to accommodate the transverter to simply change the 28 part to 144 or 432 as most ham radios do but not all ?
Thanks for posting this Paul. As we are entering solar cycle 25, can you tell me if your MCHF home kit build also works VHF/UHF (2m and 6m) from this transverter very well? 73
Hi Pavol, Many thanks for another very educational video. I enjoy learning from you regarding this radio, and everything else that You do in your videos and live streams. Would you please be so kind as to tell me where these transverters are made please, and also what part of the world they are dispatched from Please. Many Thanks, Kind Regards, Ray, M0RAY
Hello my friend, I am not sure what exactly about is your question, but basically you can listen whole VHF band on 10m band. Just ignore 28.MHz and imagine it's 144.MHz. For example: if you want tune 144.300 USB, just tune your 10m band transceiver to 28.300 USB and thats it ;-) it's simple. The range is from 144.000 to 148.000 MHz and from 432.000 to 436.000 MHz. Best 73, Paul OM0ET
@@jrweathers5296 If the max is only 30MHz so probably no. In the product description they write: RF range 144 ... 148MHz and 432-436Mhz so it means that 28.100 is 144.100, 29.100 is 145.100, 30.100 is 146.100 and 31.100/147.100. So you should have transceiver with wider frequency range (31.090 MHz).
@@combatwombat71 still have not seen the video about that yet but it is a nice feature in the 7610 for transverter input which wasn't use in that video unfortunately...
I'm trying to locate a solution to allow me to gain access to local 2m SSB traffic and this does not appear to be possible with transverters as far as this demo provides. Good video nonetheless. 73 de KN4GEI
yes it does 28.00 would transvert to 144.200 , nearly all 2 meter SSB and CW is from 144 to 146 so 28.0 to 29.9 is going to transvert to 144.0 to 145.9 146 and above is usually FM 73 J
There are transverters with 150 watts out but they are in the $850 US range for price. q5signal.com/index.php?route=product/product&path=62&product_id=97 for instance but at that price, try buying a 220m all band 150 watt radio.
some of the newer radios and nearly none of 20+ year old HF radios include 6 meters. It would be great to have a few transverter options to choose from based on whether you have 6M or not... It could be an option to transvert at 25.0 or 26.0 Mhz for the sake of having wider bandwidth support, but then the HF radio would need a MARS mod performed. I am guessing 10M is used because it is the widest band that nearly every Amateur HF radio has and as such would provided the best option without any need to mod the radio itself.
I use my IC7610 with Down East Microwave Transverters, works really well. I wouldn’t recommend the Transverter Store units as they have very poor spurious performance and a receive noise figure of around 8db
OM0ET www.q5signal.com They manufacture the DEMI designs. I’ve done some measurements for MDS ( minimum detectable signal) using my R and S test set up and it’s about 10dB better than the new Icom IC9700. I regularly have QSO’s under flat band conditions in the 700 to 900kms distance
This Transverter is not from the Transverter Store! The Transverter Store makes cheap forgeries. Their transverters have very low characteristics. Be careful!
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
I bought this a couple of months ago it is a very well made transverter, a good way to do CW on VHF, maybe it can be used with a duplexer to save swapping about with VHF and UHF antennas.
I use also duplexer because I have a dualband VHF/UHF yagi + HF long wire antenna :-) in one cable. Works good, bud when I compare it with the FT991a so this transverter is on UHF little more deaf than Yeasu. But VHF is OK.
Unfortunately, currently out of stock and unavailable due to the war in the Ukaraine. It would be the perfect match for mt Alinco DX-70t were it still available.
Hi Paul
I Have The New Model that your link now points to, The Lo has a switch to add another 2 mhz, the osc is dds and it is very stable on 2 and 70cm, my frq counter is gpsdo locked, and the transverter does not wonder, but it is 110hz of frq at 2m and 400hz on 70cm so you need to remember this when tuning to correct it,
The seller is very good, it arrived to the united kingdom in just over 1week, i did have the 150w 50ohm resister fail the fist day, and i told the seller and he refunded me the cost of getting another resister ,
the one thing this resister and the RF output tranny is mounted to the rear s/steel plate, as a heat sink s/steal is a very bad heat conductor , so i added a ally heatsink to the rf output and the power came up a bit another 2w on 2m so the heat was making it lower the power, there was also no heat sink compound on these components witch i have now corrected, The signal looks very good on my RSPDUO, sdr,
Thanks Dave 2E0DMB
Hello Dave! Thank you very much for your measurements and great informations how to made this transverter even better! Thanks for this review 😉👍 73, Paul.
Cool! I can get something for nothing! A whole new radio on the cheap with no tradeoffs! What a world we live in !
I am want to buy this but have a few questions about what I need. I believe these questions will help other people as well. I have an FTDX101MP and am worried about accidently blowing up the transverter by hitting it too hard from the radio. Is the input protected or can it be fused ? Also, I have a new 200 watt 144Mhz amp that wants to see 10-15 watts RF input power. Do you have a unit that is capable of driving my amp at this level? Is the keying of your transverter automatic (RF sensing) or do I have to switch it into transmit?
which baofeng is that one?
How is the Transverter going to TX?
Why do you NOT enable the Transverter Readout on youR ICOM? So you can read the Frequency in the right way (144.350)?
Next version provide separate antenna input for 2m and 70cm and full duplex capability, so it will allow amateur radio satellite operation :)
cqpy2rn they drift like hell on uhf ssb tx. The LO is not stable AT ALL. Many people try to apply heat to the LO but I didn’t help. 9k drift when trying the birds
@@JayN4GO You confuse these transverters with transverters from the Transverter Store. The Transverter Store makes cheap forgeries with poor characteristics.
The transceiver that is shown in the video has separate TCXOs into both bands and the stability is determined by the characteristics of the transceiver you use.
Андрей Бондаренко yes Serge is the one i have seen tested with the icom 7300. It was junk. Where is the stats on this transverter ?
@@JayN4GO LO replaced w/ Si510 & Si591 programmed for satellite subband. Works fine, no drift.
Great video, thank you for sharing. Question, at 6:27 I hear what sounds like a large motor starting and notice a quick jump in interference on your radio?
Thank you Jimbo. The sound you heard is a elevator motor in my house. Because of I am living in top floor appartment, the sound from this motor is loud because is located on top in a small elevator room 😊 But i don't realize this sound any more after couple years I live here 😄 I am glad that the roof is so close because of antennas hihi 😉👍 73, Paul
I Have noticed 2 drawbacks, one is it doesn't cover 430 mhz and there are a lot of Uk repeaters down there and the other thing is if you want to take it right up to the top of the two meter band, 148mhz say, the transceiver would have to be on around 32mhz, ad most transceivers wont transmit there unless they are widebanded, if i have that right, any comments noted and welcome,,,,if it wasn't for that i might be tempted to buy one....i have no idea how much they cost or where to get them....Fred g4vvq Uk.
You can do this on a Flexradio. The radio will, out the transverter port, transmit from 25mhz to 29mhz. It essentially ignores band lock on the transverter port.
Hi, I would be using 2/70 and 10/11 meter antennas, on my CRT 9900 10/11 radio to get 2m ssb,would I still have to swap antennas around? Would the transverter work with my radio?
Will this works on IC-718?
What about PL tones and offset for repeaters
Fully depends on your transceiver.
Can I mod a radio to be all three like hf vhf uhf
rx to hf is it using 600ohm transfrmator ?
I don't know. I am sorry. 73, Paul
Make something for qo 100 from uhf
Will it transvert SSB too, or any mode, of just FM for simple or repeater use? 73
It transvert all modes. 😉👍
@@OM0ET So the output power will be limited to 10 watts? Thanks.
@@k2icc yes, you will need additional PA. But internal oscilator is not stable in this thing.
@@OM0ET Great video regardless of the oscillator. A challenge to build something better if needed. But the explanation is great. I just have not used one yet. Thanks a lot.
@@k2icc Thank you too for the nice comment! :)
How stable is the transverter on 430 Mhz ?
Not much Rudi, on 2m and on 70cm indeed :)
I see on ebay they have one with or without attenuator, what does the attenuator do ?
The attenuator protects transverter input before the high output power from transceiver.
Hi ! CAN I use it with Anan 7000 ?
Hi would the transverter work on a yaesu ft-757gx.
It will work with any HF 10m band radio
WERE CAN I BUY THIS TRANSVERTER AND HOW MUCH
Thanks for sharing! 73 de ve3hip in Welland Ontario Canada 🇨🇦
Hello thanks foto de test, my question is, how transmit in USB or lsb, for de satélites, thanks other times, excuseme for my fatal english
Transverter bands are switching manually so if you plan to use crossband so is not possible with this. If you plan to use split in-band its OK. Just one negative thing is that VFO inside transverter is not much stable :)
Great video as always Paul, I have an icom 751 and apparently this would work it has a transverter port on the back for the low input power, but my question is how to incorporate a CTCSS tone, any ideas.
Many thanks for sharing this txverter. Barnie.
Hello Barnie, thanks for lovely comment ;-) The Icom 7610 has in FM mode possibility to turn on TONE feature. Inside this feature is to set REPEATER TONE and also I can set the T-SQL TONE. And also there is a T-SCAN. So I can make a FM contacts trough repeaters with this HF Icom transceiver and VHF transverter. 73, Paul
That radio does not have it built in. You need to connect CTCSS generator either after audio high-pass filter or put out enough signal that it passes through. Filters are usually 300Hz and above, tones are about 30-250Hz, and 88.5Hz and up to about 150Hz is those most used.
not wide enough on 70cms 432 to 437 wide at best. pity they never thought of the usa market too further on up at 440/450mhz................................................................................................................................................but a serious question id like an icom mabe a 7300 but you never said does any or all icoms have a transverter frequencey digit change option so it looks the same on the display ?....
This is a 28 to 144/432 transverter so the input signal goes directly from the ANT output of any 10m band transceiver. It means that you have to tune your TRX to for example 28.300 MHz and your signal will be transverted to 144.300 MHz. Same with 70cm band. There is a switch. Input frequency 28.300 is transverted to 432.300 MHz. You don't need any special TVRT output on your transceiver. Just lower power to max.5W and go. 73
Of course that on the screen you will see 28.300 tuned frequency. But .300 gives you the information where you are.
VFO stability is not good for digital modes and the receiver input quality is not good against to near very strong signals. But for this price I can't wait more...
@@OM0ETi do understand they can drift on frequencey and are not stable but they are not to bad. but i dont think you understand my question .. The USA band on 70cms is 440 mhz to 450 mhz hence i said its not wide enough in band width for the usa market starting at 432 mhz with a 28 IF.. as you will only get about 5mhz band width output in total but not much more. taking you to around 437mhz with a 33 IF. its just a pity they never made them too for the upper part of the 70cms band. mabe one day they will think about this as america is a big place and they could get many more sales thats all i ment. thanks for the reply sir
@@OM0ET sorry for any confusion .. my second question was does the icom 7300 or other icom models not have a frequencey offset setting to accommodate the transverter to simply change the 28 part to 144 or 432 as most ham radios do but not all ?
Thanks for posting this Paul. As we are entering solar cycle 25, can you tell me if your MCHF home kit build also works VHF/UHF (2m and 6m) from this transverter very well? 73
I have no longer my mcHF transceiver. I have sold it months ago because I have too many radios already 😁
have you tried in ssb? is it checked or does it have a difference in Hz?mine is traveling.73's de Iz7GLL
Yes I did and is traveling too. Not OK for FT8. it needs more stable oscillator.
@@OM0ET ok thanks for the info
@@IZ7GLL you are welcome 😉 73, Paul.
Hi Pavol,
Many thanks for another very educational video. I enjoy learning from you regarding this radio, and everything else that You do in your videos and live streams.
Would you please be so kind as to tell me where these transverters are made please, and also what part of the world they are dispatched from Please.
Many Thanks,
Kind Regards,
Ray, M0RAY
What about the range?, Is the implementation the same as the HF Frequency wave!, YG3DAP from Indonesia, thank & 73 my friend.
Hello my friend, I am not sure what exactly about is your question, but basically you can listen whole VHF band on 10m band. Just ignore 28.MHz and imagine it's 144.MHz. For example: if you want tune 144.300 USB, just tune your 10m band transceiver to 28.300 USB and thats it ;-) it's simple. The range is from 144.000 to 148.000 MHz and from 432.000 to 436.000 MHz. Best 73, Paul OM0ET
So, it's a frequency multiplier with power output stage
Yes
@@OM0ET
Supposed I want to convert my 2m transceiver to higher frequency as I'm willing to transmit on 1200Mhz, is there a Transverter for that one?
Where can these be obtained?
Could you use a base cb with ssb with this ?
Sure. You need any TRX with 28-30MHz band.
Cb here is 27mhz would that still work ?
@@cmvb69 No, it must be 28-30MHz. Converter will add +116MHz to its input frequency signal. So 27MHz+116MHz=143MHz.
Nice, the rang to VHF from 144 MHz to 145 MHz?
Look at here 8:28 and pause 😉👍
Amazing TNX 73 de IS0HMZ Luca ciao
@@OM0ET My transceiver only goes up to 30.0mhz and the repeater I want to use is on 147.09. I won't be able to right?
@@jrweathers5296 If the max is only 30MHz so probably no. In the product description they write: RF range 144 ... 148MHz and 432-436Mhz so it means that 28.100 is 144.100, 29.100 is 145.100, 30.100 is 146.100 and 31.100/147.100. So you should have transceiver with wider frequency range (31.090 MHz).
Thanks so much for the great info. Now I don't need a rig up grade to get on 2m SSB!
be prepared for major 2m ssb frequency drifting...
I assume that's sarcasm born of experience? I hope it is.
You should try this again with the transverter port, I think it will display the correct frequency on your radio, see instructions on page 2-2...
Yes, you can apply an offset in the menu to display the 'actual' 144 MHz frequency I believe.
@@combatwombat71 still have not seen the video about that yet but it is a nice feature in the 7610 for transverter input which wasn't use in that video unfortunately...
How I gate this is place give my your phone
Just buy a 9700. Sorted 👍
Well I do need 2k Euros first hihi :D
@@OM0ET Loose change for you 😉
I'm trying to locate a solution to allow me to gain access to local 2m SSB traffic and this does not appear to be possible with transverters as far as this demo provides. Good video nonetheless. 73 de KN4GEI
yes it does 28.00 would transvert to 144.200 , nearly all 2 meter SSB and CW is from 144 to 146 so 28.0 to 29.9 is going to transvert to 144.0 to 145.9 146 and above is usually FM 73 J
Transverters are OK but always to low output? I would never buy one unless it did at least 50W
There are transverters with 150 watts out but they are in the $850 US range for price. q5signal.com/index.php?route=product/product&path=62&product_id=97 for instance but at that price, try buying a 220m all band 150 watt radio.
@@don_n5skt Interesting
I wonder why transverters are always on 10m... they should do transverters on the 6m band that has 4MHz bandwidth...
Who knows. I guess that 10m band radios are more common than 6m radios 😊
some of the newer radios and nearly none of 20+ year old HF radios include 6 meters. It would be great to have a few transverter options to choose from based on whether you have 6M or not... It could be an option to transvert at 25.0 or 26.0 Mhz for the sake of having wider bandwidth support, but then the HF radio would need a MARS mod performed. I am guessing 10M is used because it is the widest band that nearly every Amateur HF radio has and as such would provided the best option without any need to mod the radio itself.
will you sell me the transverter?
write me please hamradioslovakia@gmail.com
I use my IC7610 with Down East Microwave Transverters, works really well. I wouldn’t recommend the Transverter Store units as they have very poor spurious performance and a receive noise figure of around 8db
8:28 Noise figure typ. 1.1dB VHF / 1.5dB UHF
OM0ET you must have got a good one...
@@timhague882 could you give me a link where I can buy it from please? 😉 I mean the Down East Microwave.
OM0ET www.q5signal.com
They manufacture the DEMI designs. I’ve done some measurements for MDS ( minimum detectable signal) using my R and S test set up and it’s about 10dB better than the new Icom IC9700. I regularly have QSO’s under flat band conditions in the 700 to 900kms distance
This Transverter is not from the Transverter Store! The Transverter Store makes cheap forgeries. Their transverters have very low characteristics. Be careful!
That converter would need to be really cheap because you can buy cheap 2meter radio
But there is not any cheap 2m radio with all modes like SSB or CW 😉
For $155 us or over 200 CDN it would be better to get a 50W dual band mobile ......
But there is a question about SSB on such dualband TRX
i look at it like ""WHY TIE UP YOUR HF RIG""? you can buy a dual bander for less!!
An answer is simple ;-) SSB modulation + precise spectrum scope + one audio equalizer + one headset microphone = one rig ICOM 7610 ;-)
Thanks for sharing, but no thanks. 😊
Too big of a compromise.
How would transverter work with the rig control on wsjtx or jtdx on FT8 please?