it's got a pretty sensitive mic. there's times when even breathing into it normally will show a heartbeat
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MAGNUM 257 HP Review
- Thread starter Robb
- Start date
if it's picking up your breathing then it is turned up way too high, just adjust it with the mic gain on the radio to less than half or right about half meaning straight up 12 o'clock
SSB Distortion Repaired
I returned radio for warranty repair and got problem resolved.
Technician Note: Rebiased radio for optimum SSB performance and checked all modes/functions...OK
My observation is that the RFX75 amplifier housing was opened and maybe modified/adjusted.
QSO's with other stations on 10-meter SSB demonstrates the SSB transmit audio is now normal.
I thank Sam Lewis for his personal attention and rapid response!
I returned radio for warranty repair and got problem resolved.
Technician Note: Rebiased radio for optimum SSB performance and checked all modes/functions...OK
My observation is that the RFX75 amplifier housing was opened and maybe modified/adjusted.
QSO's with other stations on 10-meter SSB demonstrates the SSB transmit audio is now normal.
I thank Sam Lewis for his personal attention and rapid response!
The RFX75 RF decks were shipped with improperly plated or painted mounting screws. This prevents the RFX board ground from continuity to the radio ground. Most likely the original wrong screws were replaced with he correct type. In some RFX units, the + DC line was incorrectly connected to the wrong point on the radio chassis.I returned radio for warranty repair and got problem resolved.
Technician Note: Rebiased radio for optimum SSB performance and checked all modes/functions...OK
My observation is that the RFX75 amplifier housing was opened and maybe modified/adjusted.
QSO's with other stations on 10-meter SSB demonstrates the SSB transmit audio is now normal.
I thank Sam Lewis for his personal attention and rapid response!
These issues were all addressed in a service bulletin.
I have NEVER seen a flat match on ANY antenna that ive ever used... I think some ops are full of crap.
Check up on other threads here. The current Omega and 257 radio's are done as is the whole "S" series radio's. Next up will be new Omega & 257 HP radio's with new processors that do 10,11, &12 METER. Also the Raptor line will be the new "flagship" line if you will. New versions will include more power and SSB.
If you are really wanting a 257HP send me a PM. There is a local guy who bought one new and left it in the box and has not even tried it out yet. He might be willing to part with it.
Zman I would give Magnum a call and see what they have to say. I couldn't imagine them stopping production. I know the last batch had issues so maybe they are just changing the production line to include more quality. the number there is 877-624-6869. The Yeticom Optima is the same looking radio but with more features and a higher price tag but works great
binrat so you can see the difference what a better radio the Optima really is. Is it worth a hundred dollars more?? To me it is big time but some people won't appreciate how much better the Optima is compaired to a 257
I think its worth the extra $100. Many things make me feel that way, the way the knobs feel, not needing to go thru bands to get to a freq, the ears is impressive. The white light as well at night is welcoming to the old eyes as well.
Binrat I do agree with you the only complaint I have I would like something to dim the lights, other than that it is an ass kicking radio on any band