This will probably be the one I pick up, pretty sweet amp! I didn't know they sold a band filter, was looking into that, seems like a really nice filter for the price! 73 and yet another great video
I wonder how much it is with the band filter? I’ve been buying extra items for my Xeigu G90 carrying bag when I bought the radio. Sweet bag just for the G90 that I got on eBay.
Cool video! Be careful of the PTT connector on the PAX100. The first one I had it broke off during filming.... To Radioddity's credit they quickly replaced it!
@@TheSmokinApe I leave mine plugged in now. I will be trying out the LPFX7 hopefully this weekend or early next week to see how it does with the noise.
Excellent video! The real question is...20W vs 100W. I just bought the G90, and I'll be honest...I was skeptical. I honestly believe that I can successfully complete 9 out of 10 QSOs using 20W vs 100W, although the reports are usually 1-2 S units lower than what I would expect with 100W. 20W is definitely usable for what it is!
It may cost more but the Xiegu XPA125B is made for Xiegu radios and has built in tuner this amp has lots of good protection I got mine to run with the ic705 witch it works very well but with the icom its manual band change on the amp but used with the Xiegu G90 the band change is auto chris G0WFH
I've been checking it out but have been hesitant to drop the cash as I have a 7300 I use for my base station. That is awesome you got it to work with the 705!
@@TheSmokinApe thanks the local ham shop supplied the lead i have had the amp running at 30w output with about 300mw drive i also have the 7300 at home
thanks for the review. have been leaning towards the G90 as first HF rig because it is economical. an amp to boost operating capability beyond 20w is a nice option
This amp does require you to take some precautions with regards to your antenna/tuner. Also pay attention to the fluctuations in swr on the radio in the higher bands 👍
It's probably your power supply some claim "switching power supply " but when you increase voltage your power supply will drop amperage try test with a larger steady voltage and steady amperage out power supply or use a battery pack. And take temp readings at different bands at TX for 30sec
You should not use a PA without a Low Pass Filter on the output for the specific band you intend to operate. The Output from the PA will be full of harmonics and the signal will therefore be 'dirty' by definition. Your power meter is measuring the energy of all that crud as well as the wanted signal so I suspect a clean signal after the LPF will probably show 15% to 20% less power output. Its also important that you don't overdrive the amp otherwise the output quality will be full of intermodulation products -- as well as harmonics, making it worse for folks trying to operate close to your frequency. Adding a Power Amp is not as easy as it seems! 73 Bruce G4ABX
Thanks for the previous reply about the VFO knob on the G90, My main problem is that I have the G90 and the Pax 100 amplifier, On testing, when the PTT control is inserted into the G90, The G90 does not have any audio or indication that there is any radio signals, its the same was when the PTT cable is not inserted into the Pax. I had a external tuner (atu-100 EXT) showing sig gain on output on a 2-3 wat input to the amplifier, I am at a loss, I am 83, got my general last april, but limited knowledge on the problem, thanks.
when correctly connected, the amp showed gain on a swr/tuner, so the TX worked, the rx had no signals on the waterfall. The ptt cable when connected to the G90 cancels the rx. I have disconnected the cable from the Pax100 and it still kills the rx@@TheSmokinApe
Really? 100 watts squeezed through an SMA connector? I don't know what power SMA's are rated for, but I sure would have preferred a BNC connector or SO-239 for the output! Other than that and a low-pass filter, it looks appetizing for my FT-817ND.
They are BS fuses (British standard) which is different in how ratings are designed to ANSI standard fuses. A 15A BS fuse will carry 15A continuously without blowing but will blow if you exceed that value (with a particular curve for time at different percentages over the value) An ANSI 15A fuse will blow at 15A
I have this exact setup .. and dont use the CE19 as well .. I prefer the DigiRig and as you mentioned it uses the ACC port for the Sound. Did you every looking into it further? .. I got the kit that included the Lowpass filters as well but more curious if you tried getting Digitial to work with the pax100 and your setup
Ppl in the military use radios in the backpacks...can a civilian get that type of mobile equipment......??..if they can ..can u tell me what type if device it is, or make a vid on it.
Some radios do come with backpack options, the ic-705 for example. I don't have much experience with military radios but The Radio Prepper does feature some on his channel.
The reason y I asked, the features on the radio in the thumb nail have handles..it looks compact...looks small enough to be fitted into a pack system..but I dont know much about this type of equipment..just curious
Thanks for the review. I've looked at it on thr Radioddity site and have been wondering about it. Did you happen to put it on a scope to check on how it does as far as spurious emissions?
Hi Thanks for all your useful videos. That cat control cable for ft8 you talk about, where can I find a diagram for that. Just bought a G90 and I want to tray out ft8 See you Jimmi.
What are They all selling these days? Is this FCC tested and approved? And no band pass filters build-in? It is normal that a solid state amp, without band-pass filters produces more power. So with the needed band-pass filters the output power will be lower. How about a test to show if this box produces spurious emissions on other frequencies. An amp in a plastic box? How about shielding? We are talking about a device producing RF here. All these new Chinese devices look like the lowest quality CB radios. They still need years to develop decent RF equipment as far as I can judge..
Can't find a FCC certification anywhere. The Radioddity site has all their certifications and this isn't listed. The Xiegoop XPA125 does have a certification. Who needs the FCC...I just wouldn't sit too close to it... you might start to glow.
On the video you said only resonant antenna. The screen capture you showed had the writing external tuner or resonant antenna. Here you said tuner after the amp ok, but that's different than what you said in the video.
Thanks for the review as I just obtained
the PAX-100, and appreciate your comments along with the figures
you achieved on the different bands. W2CH
Hope it was helpful, thanks for watching 👍
Not first but honestly I really didn’t look to see that this hadn’t started yet! I’ll be back!
Thanks for watching 👍
This will probably be the one I pick up, pretty sweet amp! I didn't know they sold a band filter, was looking into that, seems like a really nice filter for the price! 73 and yet another great video
Pay attention to the swr fluctuations when I transmit, they are higher on the higher bands.
I wonder how much it is with the band filter? I’ve been buying extra items for my Xeigu G90 carrying bag when I bought the radio. Sweet bag just for the G90 that I got on eBay.
You mentioned that you shouldn't use a tuner, would an external tuner work?
You can use a tuner between the amp and the antenna.
@@TheSmokinApe thanks for the response Ape! Happy Thanksgiving!
Cool video! Be careful of the PTT connector on the PAX100. The first one I had it broke off during filming.... To Radioddity's credit they quickly replaced it!
Yeah, that connector looked suspect.
@@TheSmokinApe I leave mine plugged in now. I will be trying out the LPFX7 hopefully this weekend or early next week to see how it does with the noise.
@@WJ6FRadio you liking it so far?
Excellent video! The real question is...20W vs 100W. I just bought the G90, and I'll be honest...I was skeptical. I honestly believe that I can successfully complete 9 out of 10 QSOs using 20W vs 100W, although the reports are usually 1-2 S units lower than what I would expect with 100W. 20W is definitely usable for what it is!
I agree, you can do pretty good with 20w and a decent antenna. Thanks for the comment David!
Missed ya by 15 mins. Thanks for the video ive wondered about an amp for the g90
No worries Greg, thanks for watching 👍
It may cost more but the Xiegu XPA125B is made for Xiegu radios and has built in tuner this amp has lots of good protection I got mine to run with the ic705 witch it works very well but with the icom its manual band change on the amp but used with the Xiegu G90 the band change is auto chris G0WFH
I've been checking it out but have been hesitant to drop the cash as I have a 7300 I use for my base station. That is awesome you got it to work with the 705!
@@TheSmokinApe thanks the local ham shop supplied the lead i have had the amp running at 30w output with about 300mw drive i also have the 7300 at home
I like the Bioenno 15 amp battery. Glad to see that the G90 and Pax100 wouldn't go over 20 amps abd most likely 15...
Thanks for checking out the video Stevie!
thanks for the review. have been leaning towards the G90 as first HF rig because it is economical. an amp to boost operating capability beyond 20w is a nice option
This amp does require you to take some precautions with regards to your antenna/tuner. Also pay attention to the fluctuations in swr on the radio in the higher bands 👍
They say you need a 20A supply mainly because most 15A supplies will have a significant voltage drop away when they are operating near max current
Pretty cool little amp. Really like the small size and portability.
But as far as pricing, the G90 + PAX100 = about the same price as the FT-891.
Totally agree! Thanks for the comment Gregory.
There is a build in tuner in G90 also.
Thanks for the review. 👍
Thanks for watching Jason 👍
It's probably your power supply some claim "switching power supply " but when you increase voltage your power supply will drop amperage try test with a larger steady voltage and steady amperage out power supply or use a battery pack.
And take temp readings at different bands at TX for 30sec
You should not use a PA without a Low Pass Filter on the output for the specific band you intend to operate.
The Output from the PA will be full of harmonics and the signal will therefore be 'dirty' by definition.
Your power meter is measuring the energy of all that crud as well as the wanted signal so I suspect a clean signal after the LPF will probably show 15% to 20% less power output.
Its also important that you don't overdrive the amp otherwise the output quality will be full of intermodulation products -- as well as harmonics, making it worse for folks trying to operate close to your frequency.
Adding a Power Amp is not as easy as it seems!
73 Bruce G4ABX
Totally agree, thanks for the comments and info!
@@TheSmokinApe You are welcome. Keep doing those reviews. 73 Bruce G4ABX
Thanks for the previous reply about the VFO knob on the G90, My main problem is that I have the G90 and the Pax 100 amplifier, On testing, when the PTT control is inserted into the G90, The G90 does not have any audio or indication that there is any radio signals, its the same was when the PTT cable is not inserted into the Pax. I had a external tuner (atu-100 EXT) showing sig gain on output on a 2-3 wat input to the amplifier, I am at a loss, I am 83, got my general last april, but limited knowledge on the problem, thanks.
I ended up not being a fan of this amp and stopped using it... Are you saying you get no RX or TX with the amp inline?
when correctly connected, the amp showed gain on a swr/tuner, so the TX worked, the rx had no signals on the waterfall. The ptt cable when connected to the G90 cancels the rx. I have disconnected the cable from the Pax100 and it still kills the rx@@TheSmokinApe
Sorry man, I don’t know what’s causing that and I no longer have the g90 or the pax
TX works but No RX@@TheSmokinApe
Interesting piece, but I needs ma tuner!
That tuner is so nice 👍
Really? 100 watts squeezed through an SMA connector? I don't know what power SMA's are rated for, but I sure would have preferred a BNC connector or SO-239 for the output! Other than that and a low-pass filter, it looks appetizing for my FT-817ND.
Need to do a CW dead key to see what power is produced
Maybe next time 👍
I was thinking the same thing. Why get an approximation with SSB when you could have used AM, Or CW and get an actual number?
Ordered
Interesting option and size
Yeah, it’s unique
Is there any way that you can use the amp, while doing digital modes? I can't figure out how to do it..
Are the fuses “slow blow” ?? Could allow for spikes to 20 amp for milliseconds to fractions of seconds
I think these would pop at 15w, suppose I could do a test... lol
They are BS fuses (British standard) which is different in how ratings are designed to ANSI standard fuses.
A 15A BS fuse will carry 15A continuously without blowing but will blow if you exceed that value (with a particular curve for time at different percentages over the value)
An ANSI 15A fuse will blow at 15A
I have this exact setup .. and dont use the CE19 as well .. I prefer the DigiRig and as you mentioned it uses the ACC port for the Sound. Did you every looking into it further? .. I got the kit that included the Lowpass filters as well but more curious if you tried getting Digitial to work with the pax100 and your setup
I haven't tried to use the amp with digital, sorry I can't help with that.
Ppl in the military use radios in the backpacks...can a civilian get that type of mobile equipment......??..if they can ..can u tell me what type if device it is, or make a vid on it.
Some radios do come with backpack options, the ic-705 for example. I don't have much experience with military radios but The Radio Prepper does feature some on his channel.
well, I know of one .. the HARRIS Military grade radio. hope that helps 7 3
The reason y I asked, the features on the radio in the thumb nail have handles..it looks compact...looks small enough to be fitted into a pack system..but I dont know much about this type of equipment..just curious
@@blackquiver I array it in a backpack these days 👍
Yep..for sure..
Thanks for the review. I've looked at it on thr Radioddity site and have been wondering about it. Did you happen to put it on a scope to check on how it does as far as spurious emissions?
I have not, I am concerned that it's an issue and that's why they sell the additional filters.
Hi
Thanks for all your useful videos.
That cat control cable for ft8 you talk about, where can I find a diagram for that.
Just bought a G90 and I want to tray out ft8
See you Jimmi.
For ft8 you can use the programming cable for CAT control. I do have a video on it 👍
@@TheSmokinApe sure but what about the audio from the acc plug?
xggcomms.com/ that's where I got the cable 👍
Thanks...👍🏼
Could I hook up an atu-100 auto tuner between amp and ant ? The ATU 100 is supposed to be good up to 100 Watts
you could try that.
what other Amplifiers could i use with the G90
The most popular is the Xiegu XPBA
You read instalation instructions? 😱😱😬
The horror!
What are They all selling these days? Is this FCC tested and approved? And no band pass filters build-in? It is normal that a solid state amp, without band-pass filters produces more power. So with the needed band-pass filters the output power will be lower. How about a test to show if this box produces spurious emissions on other frequencies. An amp in a plastic box? How about shielding? We are talking about a device producing RF here. All these new Chinese devices look like the lowest quality CB radios. They still need years to develop decent RF equipment as far as I can judge..
Can't find a FCC certification anywhere. The Radioddity site has all their certifications and this isn't listed. The Xiegoop XPA125 does have a certification. Who needs the FCC...I just wouldn't sit too close to it... you might start to glow.
It does have some filtering but I don’t think it’s sufficient or else there wouldn’t be an add on product, I do not see any FCC certification.
Where do you order that after market vfo knob?
lovermusic 32x13MM Black... www.amazon.com/dp/B07CLXVCDM?ref=ppx_pop_mob_ap_share
How do you pull off the original vfo
@@TheSmokinApe
@@MrLmahar I used a small pry bar to genteelly pop it off
Would it work on the x108g too?
I’m sorry, I have no idea
@@TheSmokinApe that's cool, thanks for getting back to me.
Is IT possible to use external ATU with this Amp?
I believe you can put one after the amp but before the antenna 👍
@@TheSmokinApe i found info in other video that when you are tuning amp should be turned off?
@@MrDwadi84 that may be true, I haven’t used a tuner with this amp. You need to have the g90 internal tuner off when using it 👍
@@TheSmokinApe i know - found that info in your vid ;)
On the video you said only resonant antenna. The screen capture you showed had the writing external tuner or resonant antenna. Here you said tuner after the amp ok, but that's different than what you said in the video.
Just a question would this amp work with the smaller qrp G1M Xiegu?
I don't think the G1M has the DIN port, you might be able to wire something up but I am not sure.
15 amp fuse and you need a 20 amp power supply.
the swr on the radio is high :(
Yep
@@TheSmokinApe but is it fixable ?
Too bad it's no longer available. 😒
I had no idea
first
Lol
no tear down??? and you all your self a Amateur radio 🤦♂️ i want to know what mosfets this thing has in it. all i see is 2 TO-220's