开云体育

Sbitx v2 noise on receive with antenna disconnected

[email protected] #102783 3 things 1. With sbitx connected to antenna and transmit I have rf noise on transmit audio 2. If I have if gain turned up above 35 I get 2 rf spikes in the same spot on the display all bands 3. If I have the sbitx disconnected from the antenna I have receive noise and tones in spots along the bands particular 20m Please advise soonest?
Raj vu2zap Member Profile All Messages By This Member #102784 What power supply are you using ? Raj toggle quoted message Show quoted text On 03/06/2023 7:01 PM, 1aegisfc@... wrote: 3 things 1. With sbitx connected to antenna and transmit I have rf noise on transmit audio 2. If I have if gain turned up above 35 I get 2 rf spikes in the same spot on the display all bands 3. If I have the sbitx disconnected from the antenna I have receive noise and tones in spots along the bands particular 20m Please advise soonest
[email protected] #102785 It doesn't matter same on battery
Dave New, N8SBE All Messages By This Member #102789 开云体育 I noticed that the sbitx tends to pick up local noise if you leave the antenna port open.? Either connect it to a remote antenna (not a whip antenna connected directly to the sbitx) or a dummy load. Calms down those birdies... 73, -- Dave, N8SBE toggle quoted message Show quoted text On 2023-06-03 09:31, 1aegisfc@... wrote: 3 things 1. With sbitx connected to antenna and transmit I have rf noise on transmit audio 2. If I have if gain turned up above 35 I get 2 rf spikes in the same spot on the display all bands 3. If I have the sbitx disconnected from the antenna I have receive noise and tones in spots along the bands particular 20m Please advise soonest?

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