Hello weazle66. Are you able to advise on the procedure to increase the output power to "international standard" on the M-495 transceiver too? I'm assuming the PCB's will differ?
hi i did the mod and it work my meter read 10 to 11 watts but today the radio only pushing out 1 watt i checked coax, connectors, power supply and ant and all is fine. my swr is 1 to 1 bearing in mind my power supply is a laptop psu rated 3.95amps at 19volts whats the chances i could of blown the final (RD16HHF1)?
@sowa616 The radio is designed to run from 13.8volts so the higher voltage may have damaged the MOSFET or other parts in the radio, you should really only use a standard 13.8volt supply.
oh ok well il have another look today bear in mind i brought my radio secondhand for 60qid it could well of been tamped by screwdriver monkeys who dont know what they are doing. ill use my moonraker silver rod 1/2wave ant on it as its swr is 1:1. also can i ask when you turn your radio on does the signal meter jump up and down very randomly as my one does and it makes it very difficaughlt to adjust the sqeulch as it makes a horrid clicking noise like a load poping noise when the sqeuch is high?
@sowa616 I have modded 4 of these radios now for people (don't own one myself) and none of them had the same issues as yours so as you say probably been messed with.
oh i forgot to mention i have got my meter inline with my ant (antron 99) now i recall in your video you using a dummy load would it be that causing the problem me not using a dummy load?
@sowa616 As long as the SWR is good it should not make any difference, i use a 50ohm dummy load for testing but i always hook up to my IMAX 2000 after that and results are the same as it has a good SWR.
hi there again weazle66 ive tried doing the mod and no luck i have done the one you showed me and lk2,lk5 and lk6 and the radio only outputs 2 watts there is no cap installed. what am i doing wrong?
@sowa616 well i don't have your radio in front of me so as to what you have done wrong would be guess work, maybe when you were soldering you have shorted something you should not have as the jumper points are very small.
I have done several of these radios now and it always works when i do it so you must have got something wrong.
OK thanks mate so once Ive done the jumpers and cap i should expect to get 10-12 watts. can i ask if its advisable to put 10 to 12 watts int my zegati b150p its 100watts UK FM and 200watts ssb?
@sowa616 Well you should get around 11-12 watts if you do it correctly, according to the ZETAGI website the B150 input power is listed as 0.5-5 watts AM/FM so i would be careful.
hi could you tell me step by step how you do this power mod for FM UK? as i just brought the radio and you talk about the coils need tuning is there a particular order and how you adjust them and what ones? thanks if u can answer my question mike :)
@sowa616 Hi Mike, tweaking the coils makes hardly any difference to the output power as i explained in the video - see the jumper settings below for 12 watt setting.
Surely 10 watts is more than enough for ukfm? My cobra 148 does 40 mile on that sort of power.. nice to see the mod,but I think that 16 watt tranny might be better set for 10 watts and no higher just to keep it lasting a long time... Also I`d extend the heatsink on the radio to compensate for the long and higher power QSO... By the way thanks for the transistors I got from you they are FANTASTIC.
Yes i also think 10 watts is more than enough, the radios are designed for 10 watts output but are restricted for the UK market. I ran up the radio for a good while and it does run pretty cool i have to say.
Glad to hear the replacement transistors are working well.
@weazle66 It would be much appreciated if you are able to find out anything about modifying this radio's output. Thanks for getting back to me. Dave
SuperGingerGiant 4 months ago
Do you have any step by step guidance on carrying out this mod on the Intek M-495 Power??
SuperGingerGiant 5 months ago
@SuperGingerGiant i have not modified a M495 as yet but i imagine it can be done, i will see if i can source any info on the mod...
weazle66 5 months ago
Hello weazle66. Are you able to advise on the procedure to increase the output power to "international standard" on the M-495 transceiver too? I'm assuming the PCB's will differ?
SuperGingerGiant 5 months ago
hi i did the mod and it work my meter read 10 to 11 watts but today the radio only pushing out 1 watt i checked coax, connectors, power supply and ant and all is fine. my swr is 1 to 1 bearing in mind my power supply is a laptop psu rated 3.95amps at 19volts whats the chances i could of blown the final (RD16HHF1)?
sowa616 6 months ago
@sowa616 The radio is designed to run from 13.8volts so the higher voltage may have damaged the MOSFET or other parts in the radio, you should really only use a standard 13.8volt supply.
weazle66 6 months ago
oh ok well il have another look today bear in mind i brought my radio secondhand for 60qid it could well of been tamped by screwdriver monkeys who dont know what they are doing. ill use my moonraker silver rod 1/2wave ant on it as its swr is 1:1. also can i ask when you turn your radio on does the signal meter jump up and down very randomly as my one does and it makes it very difficaughlt to adjust the sqeulch as it makes a horrid clicking noise like a load poping noise when the sqeuch is high?
sowa616 7 months ago
@sowa616 I have modded 4 of these radios now for people (don't own one myself) and none of them had the same issues as yours so as you say probably been messed with.
weazle66 7 months ago
oh i forgot to mention i have got my meter inline with my ant (antron 99) now i recall in your video you using a dummy load would it be that causing the problem me not using a dummy load?
sowa616 7 months ago
@sowa616 As long as the SWR is good it should not make any difference, i use a 50ohm dummy load for testing but i always hook up to my IMAX 2000 after that and results are the same as it has a good SWR.
weazle66 7 months ago
hi there again weazle66 ive tried doing the mod and no luck i have done the one you showed me and lk2,lk5 and lk6 and the radio only outputs 2 watts there is no cap installed. what am i doing wrong?
sowa616 7 months ago
@sowa616 well i don't have your radio in front of me so as to what you have done wrong would be guess work, maybe when you were soldering you have shorted something you should not have as the jumper points are very small.
I have done several of these radios now and it always works when i do it so you must have got something wrong.
weazle66 7 months ago
OK thanks mate so once Ive done the jumpers and cap i should expect to get 10-12 watts. can i ask if its advisable to put 10 to 12 watts int my zegati b150p its 100watts UK FM and 200watts ssb?
sowa616 7 months ago
@sowa616 Well you should get around 11-12 watts if you do it correctly, according to the ZETAGI website the B150 input power is listed as 0.5-5 watts AM/FM so i would be careful.
weazle66 7 months ago
hi could you tell me step by step how you do this power mod for FM UK? as i just brought the radio and you talk about the coils need tuning is there a particular order and how you adjust them and what ones? thanks if u can answer my question mike :)
sowa616 7 months ago
@sowa616 Hi Mike, tweaking the coils makes hardly any difference to the output power as i explained in the video - see the jumper settings below for 12 watt setting.
LK1 = SHORT
LK2 = OPEN
LK3 = OPEN
LK4 = SHORT
LK5 = SHORT
LK6 = SHORT
LK7 = SHORT
LK8 = OPEN
weazle66 7 months ago
help me ?
volit75 8 months ago
@volit75 Solder bridge jumpers LK2, LK5, LK6 and remove cap if installed.
weazle66 8 months ago
Surely 10 watts is more than enough for ukfm? My cobra 148 does 40 mile on that sort of power.. nice to see the mod,but I think that 16 watt tranny might be better set for 10 watts and no higher just to keep it lasting a long time... Also I`d extend the heatsink on the radio to compensate for the long and higher power QSO... By the way thanks for the transistors I got from you they are FANTASTIC.
vicmeuk 1 year ago
Yes i also think 10 watts is more than enough, the radios are designed for 10 watts output but are restricted for the UK market. I ran up the radio for a good while and it does run pretty cool i have to say.
Glad to hear the replacement transistors are working well.
weazle66 1 year ago