[TenTec] Eagle, no 80m

[Bob McGraw K4TAX]

I would suspect a relay or relays on the LPF {Low Pass Filter} board has 
failed.   That would be K11 or K2 as they switch the filter components 
for 80M both TX and RX.  The relay coils are wired in parallel.   The 
80M section covers 2.5 MHz - 4.0 MHz. If one relay fails that band is 
not operational.  You can measure the relay coils in the circuit, 
looking for a pair with higher resistance, indicating one of the two 
coils is open.  Your guess then as to which one has failed is a flip of 
the coin.   I usually remove both of them and replace both with new 
ones.   Although these relays are 12V relays, it is not uncommon for the 
coil to open up.

Or perhaps logic voltage to switch to that band.  Check the voltage at 
pin #3 on U1 Could be a connector issue at J1.

Yes the receiver is an excellent receiver.  Very quiet and the DSP 
provides the IF selectivity while the filters provide roofing properties 
and AGC protection from adjacent strong signals.

73

Bob, K4TAX

>> On Sep 21, 2019, at 11:14 PM, Paul DeWitte <k9ot at yousq.net> wrote:
>>
>> Several months ago I bought an Eagle and until this AM I have been happy
>> with it.
>> In comparing the rcv of the Eagle to my Omni VI+ I found out that I have no
>> TX or RCV on 80m. The rest of the bands seem to be OK. I had only used it
>> on 30m up until now.
>> Not sure where to start looking. Any suggestions?
>> For what it is worth, on listening to DX on 160m I could copy Q5 C21WW on
>> the Eagle but not on the Omni VI+. I was able to narrow it up enough to get
>> rid of the QRN where the OmniVI+ I could not even with 250 filters in both
>> IFs.
>>
>> Thanks for any replies,
>> 73 Paul K9OT
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