I have a VHF 25W 16 channel Maxtrac which covers 146 - 175 MHz.
Its a 16 pin version and works OK on 146.1 MHz.
I am planning on programminmg the radio down to 145 Mhz using the SHIFT KEY trick ie. only 1 MHz out of band.
I have read that there are TX power control issue even though the radio is only just out of band.
I just wanted to get an update on whether others have had TX output power issues when programming a VHF Maxtrac just slightly out of band.
When I programmed my 10m 60W Maxtrac onto 10m, I don't think I had an out of band TX power issue...although the radio was running 90W both in and out of band...so I lowered the TX down to 50w!!
Thanks
Maxtrac VHF 146 - 175 MHz : any issues at 145 MHz?
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Re: Maxtrac VHF 146 - 175 MHz : any issues at 145 MHz?
It's hit or miss. Some radios do it and some don't. Newer-manufactured radios seem to do it less often than older radios, and 25W radios have less issue with it than 40/50W radios.
"Fixing" the issue by turning the power down in alignment on low band radios is not advisable, as it can swing back high on different channels spaced only a few hundred kHz apart. Best and safest bet is to follow the complete conversion procedure on Repeater Builder.
"Fixing" the issue by turning the power down in alignment on low band radios is not advisable, as it can swing back high on different channels spaced only a few hundred kHz apart. Best and safest bet is to follow the complete conversion procedure on Repeater Builder.