Very low output at 5W

Eben Fourie Всі повідомлення цього користувача #54146 When using menu 75 to set the output power level, I've noticed some odd results When it is set to 5W, I see miliwatt power on 2 different meters (LDG FT & SureCom 102 HF) When I increase this setting to 10W or more, the expected power output on the meters match what I expect... Not sure why the radio seems to be doing this. The radio has the Collins 2300 Hz SSB and 300 Hz CW filters installed. I've also connected the SureCom meter to my base rig (FT-710) to confirm it read power correctly at 5W, and on that radio it is fine. Any suggestions ?
Compton Всі повідомлення цього користувача #54152 What Tx mode is the radio in when you do the measurement? -- Compton VK2HRX Sydney, Australia
Kevin Woods VE7KHI Всі повідомлення цього користувача #54153 Thanks Compton, I appreciate your continued interest. If I'm doing a regular tune on the freq, I switch to CW and get full power out deflection on the meter, then when I turn back to DIG MODE I get a reduced output. Perhaps 30W on cw, but about 22W on digital. Not an issue, but just curious. I wonder if there is some RF getting dissipated somewhere in the system, which would NOT be good - but I thought there may be a Digital setting somewhere else in the menu that causes the output to be reduced 'at source". K переключити цитоване повідомлення Показати цитований текст On Wed, Sep 25, 2024, 14:53 Compton via groups.io, <comptonallen=optusnet.com.au@groups.io> wrote: What Tx mode is the radio in when you do the measurement? -- Compton VK2HRX Sydney, Australia
Kevin Woods VE7KHI Всі повідомлення цього користувача #54154 Sorry, I think the thread has moved on! переключити цитоване повідомлення Показати цитований текст On Wed, Sep 25, 2024, 17:11 Kevin Woods VE7KHI via groups.io, <kevin.kc.woods=gmail.com@groups.io> wrote: Thanks Compton, I appreciate your continued interest. If I'm doing a regular tune on the freq, I switch to CW and get full power out deflection on the meter, then when I turn back to DIG MODE I get a reduced output. Perhaps 30W on cw, but about 22W on digital. Not an issue, but just curious. I wonder if there is some RF getting dissipated somewhere in the system, which would NOT be good - but I thought there may be a Digital setting somewhere else in the menu that causes the output to be reduced 'at source". K On Wed, Sep 25, 2024, 14:53 Compton via groups.io, <comptonallen=optusnet.com.au@groups.io> wrote: What Tx mode is the radio in when you do the measurement? -- Compton VK2HRX Sydney, Australia
Eben Fourie Всі повідомлення цього користувача #54155 Compton, I've tried CW, FM and PKT... I'm using 7.050 MHz to test, and have made sure the meter and dummy load are connected to the HF antenna output. For CW, using a straight key, I see setting 5w, meter 0.663W setting 10w, meter 9.14W For PKT and FM, I just key the hand mic setting 5W, meter 0.439W setting 10W, meter 9.12W Eben ZL2EF
Adrian Fewster #54156 What is the alc meter indication at 22w on DIG mode ? 73 vk4tux On 26/9/24 10:11, Kevin Woods VE7KHI via groups.io wrote: переключити цитоване повідомлення Показати цитований текст Thanks Compton, I appreciate your continued interest. If I'm doing a regular tune on the freq, I switch to CW and get full power out deflection on the meter, then when I turn back to DIG MODE I get a reduced output. Perhaps 30W on cw, but about 22W on digital. Not an issue, but just curious. I wonder if there is some RF getting dissipated somewhere in the system, which would NOT be good - but I thought there may be a Digital setting somewhere else in the menu that causes the output to be reduced 'at source". K On Wed, Sep 25, 2024, 14:53 Compton via groups.io, <comptonallen=optusnet.com.au@groups.io> wrote: What Tx mode is the radio in when you do the measurement? -- Compton VK2HRX Sydney, Australia

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