Topband: FT-1000MP

[donovanf at starpower.net]

Hi Kip, 


Your question involves perhaps the most frequently misunderstood 
aspect of FT-1000MP receiver operation, a result of the poorly 
written description of Menu 8-4 on page 91 of the operating 
manual . A much better description and illustration of pre-amplifier 
selection menu 8-4 and the IPO front panel push button appears 
on page 30 of the operating manual. 


Two controls must be properly set to optimize FT-1000MP receiver 
front-end performance on 160, 80 and 40 meters: Attenuator and 
IPO. When IPO is enabled, it bypasses the pre-amplifier selected 
by Menu 8-4. 


The FT-1000MP has three pre-amplifiers: 
- a 1.8 - 7 MHz pre-amplifier ( IPO should be enabled when 
operating on 160, 80 and 40 meters to bypass this pre-amplifier) 
- a pre-amplifier with excellent sensitivity on 24 and 28 MHz 
- a wideband ( FLAT ) pre-amplifier with very poor 28 MHz sensitivity 


The front panel IPO pushbutton bypasses the pre-amplifiers entirely, 
feeding the antenna directly into the first mixer. I always enable 
IPO when operating on 160, 80 and 40 meters. 


The Attenuator should be set to the highest setting while providing 
acceptable receiver sensitivity. I almost always set the attenuator 
to 18 dB when operating on 160 meters. 


I always set Menu 8-4 to TUNED , allowing the FT-1000MP to 
automatically select the proper pre-amplifier for 12 and 10 meters, 
I never use the 1,8-7 MHz preamplifier because I always enable 
IPO when operating on those bands and I never set Menu 8-4 to FLAT . 


73 
Frank 
W3LPL 









----- Original Message -----

From: "Kip Edwards" <kedwards at ltol.com> 
To: "Top Band Contesting" <topband at contesting.com> 
Sent: Wednesday, June 15, 2016 2:07:09 PM 
Subject: Topband: FT-1000MP 

All, 



I have been corresponding via email with Andy, SP6AEG, 
regarding the 5J0P DXpedition and other topics. This morning I received the 
following question from Andy: 



"I received from Janusz SP6IXF as gift transceiver FT1000MP with a set of 
filters in optional (2 kHz / 250 Hz) ssb / cw + roofing filter. I have a 
dilemma, do not know who Receiver Front-End RF Amplifier should be active 
for optimal performance for 160 m. I have a choice of flat or Tuned for low 
band. Do you have on this subject some knowledge?" 



Is there anyone on this reflector who can offer any help? I 
know nothing about the 

FT 1000MP (among many other things) but I'd like to help Andy. 



Many thanks. 



73 Kip W6SZN 





G. Kip Edwards 

Telephone: (206) 999-9403 

email: kedwards at ltol.com 



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